[PATCH AUTOSEL 5.17 001/149] drm: Add orientation quirk for GPD Win Max

[PATCH AUTOSEL 5.17 001/149] drm: Add orientation quirk for GPD Win Max

[Sasha Levin]

From: Anisse Astier <anisse@astier.eu>

[ Upstream commit 0b464ca3e0dd3cec65f28bc6d396d82f19080f69 ]

Panel is 800x1280, but mounted on a laptop form factor, sideways.

Signed-off-by: Anisse Astier <anisse@astier.eu>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211229222200.53128-3-anisse@astier.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index b910978d3e48..4e853acfd1e8 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -180,6 +180,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"),
 		},
 		.driver_data = (void *)&lcd720x1280_rightside_up,
+	}, {	/* GPD Win Max */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1619-01"),
+		},
+		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/*
 		 * GPD Pocket, note that the the DMI data is less generic then
 		 * it seems, devices with a board-vendor of "AMI Corporation"
-- 
2.34.1

[PATCH AUTOSEL 5.17 002/149] Bluetooth: hci_sync: Fix compilation warning

[Sasha Levin]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

[ Upstream commit 89a0b8b98f49ae34886e67624208c2898e1e4d7f ]

This fixes the following warning:

net/bluetooth/hci_sync.c:5143:5: warning: no previous prototype for
‘hci_le_ext_create_conn_sync’ [-Wmissing-prototypes]

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_sync.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index ab9aa700b6b3..4426cc2aaf4a 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -5140,8 +5140,8 @@ static void set_ext_conn_params(struct hci_conn *conn,
 	p->max_ce_len = cpu_to_le16(0x0000);
 }
 
-int hci_le_ext_create_conn_sync(struct hci_dev *hdev, struct hci_conn *conn,
-				u8 own_addr_type)
+static int hci_le_ext_create_conn_sync(struct hci_dev *hdev,
+				       struct hci_conn *conn, u8 own_addr_type)
 {
 	struct hci_cp_le_ext_create_conn *cp;
 	struct hci_cp_le_ext_conn_param *p;
-- 
2.34.1

[PATCH AUTOSEL 5.17 003/149] ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111

[Sasha Levin]

From: Zekun Shen <bruceshenzk@gmail.com>

[ Upstream commit 564d4eceb97eaf381dd6ef6470b06377bb50c95a ]

The bug was found during fuzzing. Stacktrace locates it in
ath5k_eeprom_convert_pcal_info_5111.
When none of the curve is selected in the loop, idx can go
up to AR5K_EEPROM_N_PD_CURVES. The line makes pd out of bound.
pd = &chinfo[pier].pd_curves[idx];

There are many OOB writes using pd later in the code. So I
added a sanity check for idx. Checks for other loops involving
AR5K_EEPROM_N_PD_CURVES are not needed as the loop index is not
used outside the loops.

The patch is NOT tested with real device.

The following is the fuzzing report

BUG: KASAN: slab-out-of-bounds in ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]
Write of size 1 at addr ffff8880174a4d60 by task modprobe/214

CPU: 0 PID: 214 Comm: modprobe Not tainted 5.6.0 #1
Call Trace:
 dump_stack+0x76/0xa0
 print_address_description.constprop.0+0x16/0x200
 ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]
 ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]
 __kasan_report.cold+0x37/0x7c
 ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]
 kasan_report+0xe/0x20
 ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]
 ? apic_timer_interrupt+0xa/0x20
 ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k]
 ? ath5k_pci_eeprom_read+0x228/0x3c0 [ath5k]
 ath5k_eeprom_init+0x2513/0x6290 [ath5k]
 ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k]
 ? usleep_range+0xb8/0x100
 ? apic_timer_interrupt+0xa/0x20
 ? ath5k_eeprom_read_pcal_info_2413+0x2f20/0x2f20 [ath5k]
 ath5k_hw_init+0xb60/0x1970 [ath5k]
 ath5k_init_ah+0x6fe/0x2530 [ath5k]
 ? kasprintf+0xa6/0xe0
 ? ath5k_stop+0x140/0x140 [ath5k]
 ? _dev_notice+0xf6/0xf6
 ? apic_timer_interrupt+0xa/0x20
 ath5k_pci_probe.cold+0x29a/0x3d6 [ath5k]
 ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k]
 ? mutex_lock+0x89/0xd0
 ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k]
 local_pci_probe+0xd3/0x160
 pci_device_probe+0x23f/0x3e0
 ? pci_device_remove+0x280/0x280
 ? pci_device_remove+0x280/0x280
 really_probe+0x209/0x5d0

Reported-by: Brendan Dolan-Gavitt <brendandg@nyu.edu>
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/YckvDdj3mtCkDRIt@a-10-27-26-18.dynapool.vpn.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath5k/eeprom.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath5k/eeprom.c b/drivers/net/wireless/ath/ath5k/eeprom.c
index 1fbc2c19848f..d444b3d70ba2 100644
--- a/drivers/net/wireless/ath/ath5k/eeprom.c
+++ b/drivers/net/wireless/ath/ath5k/eeprom.c
@@ -746,6 +746,9 @@ ath5k_eeprom_convert_pcal_info_5111(struct ath5k_hw *ah, int mode,
 			}
 		}
 
+		if (idx == AR5K_EEPROM_N_PD_CURVES)
+			goto err_out;
+
 		ee->ee_pd_gains[mode] = 1;
 
 		pd = &chinfo[pier].pd_curves[idx];
-- 
2.34.1

[PATCH AUTOSEL 5.17 004/149] Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt

[Sasha Levin]

From: Soenke Huster <soenke.huster@eknoes.de>

[ Upstream commit 3afee2118132e93e5f6fa636dfde86201a860ab3 ]

This event is just specified for SCO and eSCO link types.
On the reception of a HCI_Synchronous_Connection_Complete for a BDADDR
of an existing LE connection, LE link type and a status that triggers the
second case of the packet processing a NULL pointer dereference happens,
as conn->link is NULL.

Signed-off-by: Soenke Huster <soenke.huster@eknoes.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_event.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index fc30f4c03d29..e47cde778b1c 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4661,6 +4661,19 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
 	struct hci_ev_sync_conn_complete *ev = data;
 	struct hci_conn *conn;
 
+	switch (ev->link_type) {
+	case SCO_LINK:
+	case ESCO_LINK:
+		break;
+	default:
+		/* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
+		 * for HCI_Synchronous_Connection_Complete is limited to
+		 * either SCO or eSCO
+		 */
+		bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
+		return;
+	}
+
 	bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
 
 	hci_dev_lock(hdev);
-- 
2.34.1

[PATCH AUTOSEL 5.17 005/149] drm/amd/display: Add signal type check when verify stream backends same

[Sasha Levin]

From: Dale Zhao <dale.zhao@amd.com>

[ Upstream commit 047db281c026de5971cedb5bb486aa29bd16a39d ]

[Why]
For allow eDP hot-plug feature, the stream signal may change to VIRTUAL
when plug-out and back to eDP when plug-in. OS will still setPathMode
with same timing for each plugging, but eDP gets no stream update as we
don't check signal type changing back as keeping it VIRTUAL. It's also
unsafe for future cases that stream signal is switched with same timing.

[How]
Check stream signal type change include previous HDMI signal case.

Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Dale Zhao <dale.zhao@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 18757c158523..ac3071e38e4a 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1640,6 +1640,9 @@ static bool are_stream_backends_same(
 	if (is_timing_changed(stream_a, stream_b))
 		return false;
 
+	if (stream_a->signal != stream_b->signal)
+		return false;
+
 	if (stream_a->dpms_off != stream_b->dpms_off)
 		return false;
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 006/149] drm/amdkfd: enable heavy-weight TLB flush on Arcturus

[Sasha Levin]

From: Eric Huang <jinhuieric.huang@amd.com>

[ Upstream commit f61c40c0757a79bcf744314df606c2bc8ae6a729 ]

SDMA FW fixes the hang issue for adding heavy-weight TLB
flush on Arcturus, so we can enable it.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c |  6 ------
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c         | 10 ++++++++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index f9bab963a948..5df387c4d7fb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -1813,12 +1813,6 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu(
 				true);
 	ret = unreserve_bo_and_vms(&ctx, false, false);
 
-	/* Only apply no TLB flush on Aldebaran to
-	 * workaround regressions on other Asics.
-	 */
-	if (table_freed && (adev->asic_type != CHIP_ALDEBARAN))
-		*table_freed = true;
-
 	goto out;
 
 out_unreserve:
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 4bfc0c8ab764..337953af7c2f 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1416,6 +1416,12 @@ static int kfd_ioctl_free_memory_of_gpu(struct file *filep,
 	return ret;
 }
 
+static bool kfd_flush_tlb_after_unmap(struct kfd_dev *dev) {
+	return KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2) ||
+	       (KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 1) &&
+	        dev->adev->sdma.instance[0].fw_version >= 18);
+}
+
 static int kfd_ioctl_map_memory_to_gpu(struct file *filep,
 					struct kfd_process *p, void *data)
 {
@@ -1503,7 +1509,7 @@ static int kfd_ioctl_map_memory_to_gpu(struct file *filep,
 	}
 
 	/* Flush TLBs after waiting for the page table updates to complete */
-	if (table_freed) {
+	if (table_freed || !kfd_flush_tlb_after_unmap(dev)) {
 		for (i = 0; i < args->n_devices; i++) {
 			peer = kfd_device_by_id(devices_arr[i]);
 			if (WARN_ON_ONCE(!peer))
@@ -1603,7 +1609,7 @@ static int kfd_ioctl_unmap_memory_from_gpu(struct file *filep,
 	}
 	mutex_unlock(&p->mutex);
 
-	if (KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2)) {
+	if (kfd_flush_tlb_after_unmap(dev)) {
 		err = amdgpu_amdkfd_gpuvm_sync_memory(dev->adev,
 				(struct kgd_mem *) mem, true);
 		if (err) {
-- 
2.34.1

[PATCH AUTOSEL 5.17 007/149] drm/edid: remove non_desktop quirk for HPN-3515 and LEN-B800.

[Sasha Levin]

From: Philipp Zabel <philipp.zabel@gmail.com>

[ Upstream commit 50dc95d561a2552b0d76a9f91b38005195bf2974 ]

Now that there is support for the Microsoft VSDB for HMDs, remove the
non-desktop quirk for two devices that are verified to contain it in
their EDID: HPN-3515 and LEN-B800.
Presumably most of the other Windows Mixed Reality headsets contain it
as well, but there are ACR-7FCE and SEC-5194 devices without it.

Tested with LEN-B800.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220123101653.147333-2-philipp.zabel@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_edid.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index f5f5de362ff2..e8adfa90807c 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -212,9 +212,7 @@ static const struct edid_quirk {
 
 	/* Windows Mixed Reality Headsets */
 	EDID_QUIRK('A', 'C', 'R', 0x7fce, EDID_QUIRK_NON_DESKTOP),
-	EDID_QUIRK('H', 'P', 'N', 0x3515, EDID_QUIRK_NON_DESKTOP),
 	EDID_QUIRK('L', 'E', 'N', 0x0408, EDID_QUIRK_NON_DESKTOP),
-	EDID_QUIRK('L', 'E', 'N', 0xb800, EDID_QUIRK_NON_DESKTOP),
 	EDID_QUIRK('F', 'U', 'J', 0x1970, EDID_QUIRK_NON_DESKTOP),
 	EDID_QUIRK('D', 'E', 'L', 0x7fce, EDID_QUIRK_NON_DESKTOP),
 	EDID_QUIRK('S', 'E', 'C', 0x144a, EDID_QUIRK_NON_DESKTOP),
-- 
2.34.1

[PATCH AUTOSEL 5.17 008/149] drm/edid: improve non-desktop quirk logging

[Sasha Levin]

From: Jani Nikula <jani.nikula@intel.com>

[ Upstream commit ce99534e978d4a36787dbe5e5c57749d12e6bf4a ]

Improve non-desktop quirk logging if the EDID indicates non-desktop. If
both are set, note about redundant quirk. If there's no quirk but the
EDID indicates non-desktop, don't log non-desktop is set to 0.

Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Philipp Zabel <philipp.zabel@gmail.com>
Tested-by: Philipp Zabel <philipp.zabel@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211228101051.317989-1-jani.nikula@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_edid.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index e8adfa90807c..e42a15e3f2ab 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5331,17 +5331,13 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi
 	info->width_mm = edid->width_cm * 10;
 	info->height_mm = edid->height_cm * 10;
 
-	info->non_desktop = !!(quirks & EDID_QUIRK_NON_DESKTOP);
-
 	drm_get_monitor_range(connector, edid);
 
-	DRM_DEBUG_KMS("non_desktop set to %d\n", info->non_desktop);
-
 	if (edid->revision < 3)
-		return quirks;
+		goto out;
 
 	if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
-		return quirks;
+		goto out;
 
 	info->color_formats |= DRM_COLOR_FORMAT_RGB444;
 	drm_parse_cea_ext(connector, edid);
@@ -5362,7 +5358,7 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi
 
 	/* Only defined for 1.4 with digital displays */
 	if (edid->revision < 4)
-		return quirks;
+		goto out;
 
 	switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
 	case DRM_EDID_DIGITAL_DEPTH_6:
@@ -5399,6 +5395,13 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi
 
 	drm_update_mso(connector, edid);
 
+out:
+	if (quirks & EDID_QUIRK_NON_DESKTOP) {
+		drm_dbg_kms(connector->dev, "Non-desktop display%s\n",
+			    info->non_desktop ? " (redundant quirk)" : "");
+		info->non_desktop = true;
+	}
+
 	return quirks;
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 009/149] Bluetooth: hci_event: Ignore multiple conn complete events

[Sasha Levin]

From: Soenke Huster <soenke.huster@eknoes.de>

[ Upstream commit d5ebaa7c5f6f688959e8d40840b2249ede63b8ed ]

When one of the three connection complete events is received multiple
times for the same handle, the device is registered multiple times which
leads to memory corruptions. Therefore, consequent events for a single
connection are ignored.

The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET
is introduced to identify new connections. To make sure the events do not
contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks
are introduced.

Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497
Signed-off-by: Soenke Huster <soenke.huster@eknoes.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/bluetooth/hci_core.h |  3 ++
 net/bluetooth/hci_conn.c         |  1 +
 net/bluetooth/hci_event.c        | 63 ++++++++++++++++++++++++--------
 3 files changed, 52 insertions(+), 15 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e336e9c1dda4..36d727f94ac2 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -294,6 +294,9 @@ struct adv_monitor {
 
 #define HCI_MAX_SHORT_NAME_LENGTH	10
 
+#define HCI_CONN_HANDLE_UNSET		0xffff
+#define HCI_CONN_HANDLE_MAX		0x0eff
+
 /* Min encryption key size to match with SMP */
 #define HCI_MIN_ENC_KEY_SIZE		7
 
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 04ebe901e86f..d10651108033 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -689,6 +689,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
 
 	bacpy(&conn->dst, dst);
 	bacpy(&conn->src, &hdev->bdaddr);
+	conn->handle = HCI_CONN_HANDLE_UNSET;
 	conn->hdev  = hdev;
 	conn->type  = type;
 	conn->role  = role;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index e47cde778b1c..4d45fd4b8ccd 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -3068,6 +3068,11 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
 	struct hci_ev_conn_complete *ev = data;
 	struct hci_conn *conn;
 
+	if (__le16_to_cpu(ev->handle) > HCI_CONN_HANDLE_MAX) {
+		bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for invalid handle");
+		return;
+	}
+
 	bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
 
 	hci_dev_lock(hdev);
@@ -3106,6 +3111,17 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
 		}
 	}
 
+	/* The HCI_Connection_Complete event is only sent once per connection.
+	 * Processing it more than once per connection can corrupt kernel memory.
+	 *
+	 * As the connection handle is set here for the first time, it indicates
+	 * whether the connection is already set up.
+	 */
+	if (conn->handle != HCI_CONN_HANDLE_UNSET) {
+		bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
+		goto unlock;
+	}
+
 	if (!ev->status) {
 		conn->handle = __le16_to_cpu(ev->handle);
 
@@ -4674,6 +4690,11 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
 		return;
 	}
 
+	if (__le16_to_cpu(ev->handle) > HCI_CONN_HANDLE_MAX) {
+		bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete for invalid handle");
+		return;
+	}
+
 	bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
 
 	hci_dev_lock(hdev);
@@ -4697,23 +4718,19 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
 			goto unlock;
 	}
 
+	/* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
+	 * Processing it more than once per connection can corrupt kernel memory.
+	 *
+	 * As the connection handle is set here for the first time, it indicates
+	 * whether the connection is already set up.
+	 */
+	if (conn->handle != HCI_CONN_HANDLE_UNSET) {
+		bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
+		goto unlock;
+	}
+
 	switch (ev->status) {
 	case 0x00:
-		/* The synchronous connection complete event should only be
-		 * sent once per new connection. Receiving a successful
-		 * complete event when the connection status is already
-		 * BT_CONNECTED means that the device is misbehaving and sent
-		 * multiple complete event packets for the same new connection.
-		 *
-		 * Registering the device more than once can corrupt kernel
-		 * memory, hence upon detecting this invalid event, we report
-		 * an error and ignore the packet.
-		 */
-		if (conn->state == BT_CONNECTED) {
-			bt_dev_err(hdev, "Ignoring connect complete event for existing connection");
-			goto unlock;
-		}
-
 		conn->handle = __le16_to_cpu(ev->handle);
 		conn->state  = BT_CONNECTED;
 		conn->type   = ev->link_type;
@@ -5509,6 +5526,11 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
 	struct smp_irk *irk;
 	u8 addr_type;
 
+	if (handle > HCI_CONN_HANDLE_MAX) {
+		bt_dev_err(hdev, "Ignoring HCI_LE_Connection_Complete for invalid handle");
+		return;
+	}
+
 	hci_dev_lock(hdev);
 
 	/* All controllers implicitly stop advertising in the event of a
@@ -5550,6 +5572,17 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
 		cancel_delayed_work(&conn->le_conn_timeout);
 	}
 
+	/* The HCI_LE_Connection_Complete event is only sent once per connection.
+	 * Processing it more than once per connection can corrupt kernel memory.
+	 *
+	 * As the connection handle is set here for the first time, it indicates
+	 * whether the connection is already set up.
+	 */
+	if (conn->handle != HCI_CONN_HANDLE_UNSET) {
+		bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
+		goto unlock;
+	}
+
 	le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
 
 	/* Lookup the identity address from the stored connection
-- 
2.34.1

[PATCH AUTOSEL 5.17 010/149] scsi: scsi_debug: Address races following module load

[Sasha Levin]

From: Douglas Gilbert <dgilbert@interlog.com>

[ Upstream commit 2aad3cd8537033cd34f70294a23f54623ffe9c1b ]

When scsi_debug is loaded as a module with many (simulated) hosts, targets,
and devices (LUs), modprobe can take a long time to return.  Only a small
amount of this time is spent in the scsi_debug_init(); the rest is other
parts of the kernel reacting to to the appearance of new storage
devices. As soon as scsi_debug_init() has completed the user space may call
'rmmod scsi_debug' and this was found to cause race problems as outlined
here:

    https://bugzilla.kernel.org/show_bug.cgi?id=212337

To reliably generate this race a sysfs parameter called rm_all_hosts was
added and the code was strengthened in this area. The main change was to
make the count of scsi_debug hosts present an atomic.  Then it was found
that the handling of the existing add_host parameter needed the same
strengthening. Further: 'echo -9999 >
/sys/bus/pseudo/drivers/scsi_debug/add_host has the same effect as
rm_all_hosts so rm_all_hosts was not needed.

To inhibit a race between two invocations of writes to add_host, a mutex
was added. Also address a possible race when rmmod is called but LUs are
still being added.

The logic to remove (all) hosts is rather crude: it works backwards down a
linked lists of hosts. Any pending requests are terminated with
DID_NO_CONNECT as are any new requests. In the case where not all hosts are
being removed, the ones that remain may have lost requests as just
outlined. The lowest numbered host (id) hosts will remain.

Cc: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220109012853.301953-2-dgilbert@interlog.com
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_debug.c | 197 ++++++++++++++++++++++++++++----------
 1 file changed, 146 insertions(+), 51 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 2104973a35cd..24f3905f054f 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -33,6 +33,7 @@
 #include <linux/blkdev.h>
 #include <linux/crc-t10dif.h>
 #include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/interrupt.h>
 #include <linux/atomic.h>
 #include <linux/hrtimer.h>
@@ -730,7 +731,9 @@ static const struct opcode_info_t opcode_info_arr[SDEB_I_LAST_ELEM_P1 + 1] = {
 	    {0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
 };
 
-static int sdebug_num_hosts;
+static atomic_t sdebug_num_hosts;
+static DEFINE_MUTEX(add_host_mutex);
+
 static int sdebug_add_host = DEF_NUM_HOST;  /* in sysfs this is relative */
 static int sdebug_ato = DEF_ATO;
 static int sdebug_cdb_len = DEF_CDB_LEN;
@@ -777,6 +780,7 @@ static int sdebug_uuid_ctl = DEF_UUID_CTL;
 static bool sdebug_random = DEF_RANDOM;
 static bool sdebug_per_host_store = DEF_PER_HOST_STORE;
 static bool sdebug_removable = DEF_REMOVABLE;
+static bool sdebug_deflect_incoming;
 static bool sdebug_clustering;
 static bool sdebug_host_lock = DEF_HOST_LOCK;
 static bool sdebug_strict = DEF_STRICT;
@@ -5026,6 +5030,10 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp)
 		       sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
 	if (sdp->host->max_cmd_len != SDEBUG_MAX_CMD_LEN)
 		sdp->host->max_cmd_len = SDEBUG_MAX_CMD_LEN;
+	if (smp_load_acquire(&sdebug_deflect_incoming)) {
+		pr_info("Exit early due to deflect_incoming\n");
+		return 1;
+	}
 	if (devip == NULL) {
 		devip = find_build_dev_info(sdp);
 		if (devip == NULL)
@@ -5111,7 +5119,7 @@ static bool stop_queued_cmnd(struct scsi_cmnd *cmnd)
 }
 
 /* Deletes (stops) timers or work queues of all queued commands */
-static void stop_all_queued(void)
+static void stop_all_queued(bool done_with_no_conn)
 {
 	unsigned long iflags;
 	int j, k;
@@ -5120,13 +5128,15 @@ static void stop_all_queued(void)
 	struct sdebug_queued_cmd *sqcp;
 	struct sdebug_dev_info *devip;
 	struct sdebug_defer *sd_dp;
+	struct scsi_cmnd *scp;
 
 	for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) {
 		spin_lock_irqsave(&sqp->qc_lock, iflags);
 		for (k = 0; k < SDEBUG_CANQUEUE; ++k) {
 			if (test_bit(k, sqp->in_use_bm)) {
 				sqcp = &sqp->qc_arr[k];
-				if (sqcp->a_cmnd == NULL)
+				scp = sqcp->a_cmnd;
+				if (!scp)
 					continue;
 				devip = (struct sdebug_dev_info *)
 					sqcp->a_cmnd->device->hostdata;
@@ -5141,6 +5151,10 @@ static void stop_all_queued(void)
 					l_defer_t = SDEB_DEFER_NONE;
 				spin_unlock_irqrestore(&sqp->qc_lock, iflags);
 				stop_qc_helper(sd_dp, l_defer_t);
+				if (done_with_no_conn && l_defer_t != SDEB_DEFER_NONE) {
+					scp->result = DID_NO_CONNECT << 16;
+					scsi_done(scp);
+				}
 				clear_bit(k, sqp->in_use_bm);
 				spin_lock_irqsave(&sqp->qc_lock, iflags);
 			}
@@ -5283,7 +5297,7 @@ static int scsi_debug_host_reset(struct scsi_cmnd *SCpnt)
 		}
 	}
 	spin_unlock(&sdebug_host_list_lock);
-	stop_all_queued();
+	stop_all_queued(false);
 	if (SDEBUG_OPT_RESET_NOISE & sdebug_opts)
 		sdev_printk(KERN_INFO, SCpnt->device,
 			    "%s: %d device(s) found\n", __func__, k);
@@ -5343,13 +5357,50 @@ static void sdebug_build_parts(unsigned char *ramp, unsigned long store_size)
 	}
 }
 
-static void block_unblock_all_queues(bool block)
+static void sdeb_block_all_queues(void)
+{
+	int j;
+	struct sdebug_queue *sqp;
+
+	for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp)
+		atomic_set(&sqp->blocked, (int)true);
+}
+
+static void sdeb_unblock_all_queues(void)
 {
 	int j;
 	struct sdebug_queue *sqp;
 
 	for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp)
-		atomic_set(&sqp->blocked, (int)block);
+		atomic_set(&sqp->blocked, (int)false);
+}
+
+static void
+sdeb_add_n_hosts(int num_hosts)
+{
+	if (num_hosts < 1)
+		return;
+	do {
+		bool found;
+		unsigned long idx;
+		struct sdeb_store_info *sip;
+		bool want_phs = (sdebug_fake_rw == 0) && sdebug_per_host_store;
+
+		found = false;
+		if (want_phs) {
+			xa_for_each_marked(per_store_ap, idx, sip, SDEB_XA_NOT_IN_USE) {
+				sdeb_most_recent_idx = (int)idx;
+				found = true;
+				break;
+			}
+			if (found)	/* re-use case */
+				sdebug_add_host_helper((int)idx);
+			else
+				sdebug_do_add_host(true	/* make new store */);
+		} else {
+			sdebug_do_add_host(false);
+		}
+	} while (--num_hosts);
 }
 
 /* Adjust (by rounding down) the sdebug_cmnd_count so abs(every_nth)-1
@@ -5362,10 +5413,10 @@ static void tweak_cmnd_count(void)
 	modulo = abs(sdebug_every_nth);
 	if (modulo < 2)
 		return;
-	block_unblock_all_queues(true);
+	sdeb_block_all_queues();
 	count = atomic_read(&sdebug_cmnd_count);
 	atomic_set(&sdebug_cmnd_count, (count / modulo) * modulo);
-	block_unblock_all_queues(false);
+	sdeb_unblock_all_queues();
 }
 
 static void clear_queue_stats(void)
@@ -5383,6 +5434,15 @@ static bool inject_on_this_cmd(void)
 	return (atomic_read(&sdebug_cmnd_count) % abs(sdebug_every_nth)) == 0;
 }
 
+static int process_deflect_incoming(struct scsi_cmnd *scp)
+{
+	u8 opcode = scp->cmnd[0];
+
+	if (opcode == SYNCHRONIZE_CACHE || opcode == SYNCHRONIZE_CACHE_16)
+		return 0;
+	return DID_NO_CONNECT << 16;
+}
+
 #define INCLUSIVE_TIMING_MAX_NS 1000000		/* 1 millisecond */
 
 /* Complete the processing of the thread that queued a SCSI command to this
@@ -5392,8 +5452,7 @@ static bool inject_on_this_cmd(void)
  */
 static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
 			 int scsi_result,
-			 int (*pfp)(struct scsi_cmnd *,
-				    struct sdebug_dev_info *),
+			 int (*pfp)(struct scsi_cmnd *, struct sdebug_dev_info *),
 			 int delta_jiff, int ndelay)
 {
 	bool new_sd_dp;
@@ -5414,13 +5473,27 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
 	}
 	sdp = cmnd->device;
 
-	if (delta_jiff == 0)
+	if (delta_jiff == 0) {
+		sqp = get_queue(cmnd);
+		if (atomic_read(&sqp->blocked)) {
+			if (smp_load_acquire(&sdebug_deflect_incoming))
+				return process_deflect_incoming(cmnd);
+			else
+				return SCSI_MLQUEUE_HOST_BUSY;
+		}
 		goto respond_in_thread;
+	}
 
 	sqp = get_queue(cmnd);
 	spin_lock_irqsave(&sqp->qc_lock, iflags);
 	if (unlikely(atomic_read(&sqp->blocked))) {
 		spin_unlock_irqrestore(&sqp->qc_lock, iflags);
+		if (smp_load_acquire(&sdebug_deflect_incoming)) {
+			scsi_result = process_deflect_incoming(cmnd);
+			goto respond_in_thread;
+		}
+		if (sdebug_verbose)
+			pr_info("blocked --> SCSI_MLQUEUE_HOST_BUSY\n");
 		return SCSI_MLQUEUE_HOST_BUSY;
 	}
 	num_in_q = atomic_read(&devip->num_in_q);
@@ -5616,8 +5689,12 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
 respond_in_thread:	/* call back to mid-layer using invocation thread */
 	cmnd->result = pfp != NULL ? pfp(cmnd, devip) : 0;
 	cmnd->result &= ~SDEG_RES_IMMED_MASK;
-	if (cmnd->result == 0 && scsi_result != 0)
+	if (cmnd->result == 0 && scsi_result != 0) {
 		cmnd->result = scsi_result;
+		if (sdebug_verbose)
+			pr_info("respond_in_thread: tag=0x%x, scp->result=0x%x\n",
+				blk_mq_unique_tag(scsi_cmd_to_rq(cmnd)), scsi_result);
+	}
 	scsi_done(cmnd);
 	return 0;
 }
@@ -5900,7 +5977,7 @@ static ssize_t delay_store(struct device_driver *ddp, const char *buf,
 			int j, k;
 			struct sdebug_queue *sqp;
 
-			block_unblock_all_queues(true);
+			sdeb_block_all_queues();
 			for (j = 0, sqp = sdebug_q_arr; j < submit_queues;
 			     ++j, ++sqp) {
 				k = find_first_bit(sqp->in_use_bm,
@@ -5914,7 +5991,7 @@ static ssize_t delay_store(struct device_driver *ddp, const char *buf,
 				sdebug_jdelay = jdelay;
 				sdebug_ndelay = 0;
 			}
-			block_unblock_all_queues(false);
+			sdeb_unblock_all_queues();
 		}
 		return res;
 	}
@@ -5940,7 +6017,7 @@ static ssize_t ndelay_store(struct device_driver *ddp, const char *buf,
 			int j, k;
 			struct sdebug_queue *sqp;
 
-			block_unblock_all_queues(true);
+			sdeb_block_all_queues();
 			for (j = 0, sqp = sdebug_q_arr; j < submit_queues;
 			     ++j, ++sqp) {
 				k = find_first_bit(sqp->in_use_bm,
@@ -5955,7 +6032,7 @@ static ssize_t ndelay_store(struct device_driver *ddp, const char *buf,
 				sdebug_jdelay = ndelay  ? JDELAY_OVERRIDDEN
 							: DEF_JDELAY;
 			}
-			block_unblock_all_queues(false);
+			sdeb_unblock_all_queues();
 		}
 		return res;
 	}
@@ -6269,7 +6346,7 @@ static ssize_t max_queue_store(struct device_driver *ddp, const char *buf,
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n > 0) &&
 	    (n <= SDEBUG_CANQUEUE) &&
 	    (sdebug_host_max_queue == 0)) {
-		block_unblock_all_queues(true);
+		sdeb_block_all_queues();
 		k = 0;
 		for (j = 0, sqp = sdebug_q_arr; j < submit_queues;
 		     ++j, ++sqp) {
@@ -6284,7 +6361,7 @@ static ssize_t max_queue_store(struct device_driver *ddp, const char *buf,
 			atomic_set(&retired_max_queue, k + 1);
 		else
 			atomic_set(&retired_max_queue, 0);
-		block_unblock_all_queues(false);
+		sdeb_unblock_all_queues();
 		return count;
 	}
 	return -EINVAL;
@@ -6356,43 +6433,48 @@ static DRIVER_ATTR_RW(virtual_gb);
 static ssize_t add_host_show(struct device_driver *ddp, char *buf)
 {
 	/* absolute number of hosts currently active is what is shown */
-	return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_num_hosts);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&sdebug_num_hosts));
 }
 
+/*
+ * Accept positive and negative values. Hex values (only positive) may be prefixed by '0x'.
+ * To remove all hosts use a large negative number (e.g. -9999). The value 0 does nothing.
+ * Returns -EBUSY if another add_host sysfs invocation is active.
+ */
 static ssize_t add_host_store(struct device_driver *ddp, const char *buf,
 			      size_t count)
 {
-	bool found;
-	unsigned long idx;
-	struct sdeb_store_info *sip;
-	bool want_phs = (sdebug_fake_rw == 0) && sdebug_per_host_store;
 	int delta_hosts;
 
-	if (sscanf(buf, "%d", &delta_hosts) != 1)
+	if (count == 0 || kstrtoint(buf, 0, &delta_hosts))
 		return -EINVAL;
+	if (sdebug_verbose)
+		pr_info("prior num_hosts=%d, num_to_add=%d\n",
+			atomic_read(&sdebug_num_hosts), delta_hosts);
+	if (delta_hosts == 0)
+		return count;
+	if (mutex_trylock(&add_host_mutex) == 0)
+		return -EBUSY;
 	if (delta_hosts > 0) {
-		do {
-			found = false;
-			if (want_phs) {
-				xa_for_each_marked(per_store_ap, idx, sip,
-						   SDEB_XA_NOT_IN_USE) {
-					sdeb_most_recent_idx = (int)idx;
-					found = true;
-					break;
-				}
-				if (found)	/* re-use case */
-					sdebug_add_host_helper((int)idx);
-				else
-					sdebug_do_add_host(true);
-			} else {
-				sdebug_do_add_host(false);
-			}
-		} while (--delta_hosts);
+		sdeb_add_n_hosts(delta_hosts);
 	} else if (delta_hosts < 0) {
+		smp_store_release(&sdebug_deflect_incoming, true);
+		sdeb_block_all_queues();
+		if (delta_hosts >= atomic_read(&sdebug_num_hosts))
+			stop_all_queued(true);
 		do {
+			if (atomic_read(&sdebug_num_hosts) < 1) {
+				free_all_queued();
+				break;
+			}
 			sdebug_do_remove_host(false);
 		} while (++delta_hosts);
+		sdeb_unblock_all_queues();
+		smp_store_release(&sdebug_deflect_incoming, false);
 	}
+	mutex_unlock(&add_host_mutex);
+	if (sdebug_verbose)
+		pr_info("post num_hosts=%d\n", atomic_read(&sdebug_num_hosts));
 	return count;
 }
 static DRIVER_ATTR_RW(add_host);
@@ -6902,6 +6984,10 @@ static int __init scsi_debug_init(void)
 	sdebug_add_host = 0;
 
 	for (k = 0; k < hosts_to_add; k++) {
+		if (smp_load_acquire(&sdebug_deflect_incoming)) {
+			pr_info("exit early as sdebug_deflect_incoming is set\n");
+			return 0;
+		}
 		if (want_store && k == 0) {
 			ret = sdebug_add_host_helper(idx);
 			if (ret < 0) {
@@ -6919,8 +7005,12 @@ static int __init scsi_debug_init(void)
 		}
 	}
 	if (sdebug_verbose)
-		pr_info("built %d host(s)\n", sdebug_num_hosts);
+		pr_info("built %d host(s)\n", atomic_read(&sdebug_num_hosts));
 
+	/*
+	 * Even though all the hosts have been established, due to async device (LU) scanning
+	 * by the scsi mid-level, there may still be devices (LUs) being set up.
+	 */
 	return 0;
 
 bus_unreg:
@@ -6936,12 +7026,17 @@ static int __init scsi_debug_init(void)
 
 static void __exit scsi_debug_exit(void)
 {
-	int k = sdebug_num_hosts;
+	int k;
 
-	stop_all_queued();
-	for (; k; k--)
+	/* Possible race with LUs still being set up; stop them asap */
+	sdeb_block_all_queues();
+	smp_store_release(&sdebug_deflect_incoming, true);
+	stop_all_queued(false);
+	for (k = 0; atomic_read(&sdebug_num_hosts) > 0; k++)
 		sdebug_do_remove_host(true);
 	free_all_queued();
+	if (sdebug_verbose)
+		pr_info("removed %d hosts\n", k);
 	driver_unregister(&sdebug_driverfs_driver);
 	bus_unregister(&pseudo_lld_bus);
 	root_device_unregister(pseudo_primary);
@@ -7111,13 +7206,13 @@ static int sdebug_add_host_helper(int per_host_idx)
 	sdbg_host->dev.bus = &pseudo_lld_bus;
 	sdbg_host->dev.parent = pseudo_primary;
 	sdbg_host->dev.release = &sdebug_release_adapter;
-	dev_set_name(&sdbg_host->dev, "adapter%d", sdebug_num_hosts);
+	dev_set_name(&sdbg_host->dev, "adapter%d", atomic_read(&sdebug_num_hosts));
 
 	error = device_register(&sdbg_host->dev);
 	if (error)
 		goto clean;
 
-	++sdebug_num_hosts;
+	atomic_inc(&sdebug_num_hosts);
 	return 0;
 
 clean:
@@ -7181,7 +7276,7 @@ static void sdebug_do_remove_host(bool the_end)
 		return;
 
 	device_unregister(&sdbg_host->dev);
-	--sdebug_num_hosts;
+	atomic_dec(&sdebug_num_hosts);
 }
 
 static int sdebug_change_qdepth(struct scsi_device *sdev, int qdepth)
@@ -7189,10 +7284,10 @@ static int sdebug_change_qdepth(struct scsi_device *sdev, int qdepth)
 	int num_in_q = 0;
 	struct sdebug_dev_info *devip;
 
-	block_unblock_all_queues(true);
+	sdeb_block_all_queues();
 	devip = (struct sdebug_dev_info *)sdev->hostdata;
 	if (NULL == devip) {
-		block_unblock_all_queues(false);
+		sdeb_unblock_all_queues();
 		return	-ENODEV;
 	}
 	num_in_q = atomic_read(&devip->num_in_q);
@@ -7211,7 +7306,7 @@ static int sdebug_change_qdepth(struct scsi_device *sdev, int qdepth)
 		sdev_printk(KERN_INFO, sdev, "%s: qdepth=%d, num_in_q=%d\n",
 			    __func__, qdepth, num_in_q);
 	}
-	block_unblock_all_queues(false);
+	sdeb_unblock_all_queues();
 	return sdev->queue_depth;
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 011/149] drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj

[Sasha Levin]

From: Xin Xiong <xiongx18@fudan.edu.cn>

[ Upstream commit dfced44f122c500004a48ecc8db516bb6a295a1b ]

This issue takes place in an error path in
amdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls into
default case, the function simply returns -EINVAL, forgetting to
decrement the reference count of a dma_fence obj, which is bumped
earlier by amdgpu_cs_get_fence(). This may result in reference count
leaks.

Fix it by decreasing the refcount of specific object before returning
the error code.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 06d07502a1f6..a34be65c9eaa 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1509,6 +1509,7 @@ int amdgpu_cs_fence_to_handle_ioctl(struct drm_device *dev, void *data,
 		return 0;
 
 	default:
+		dma_fence_put(fence);
 		return -EINVAL;
 	}
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 012/149] drm/amd/display: Fix memory leak

[Sasha Levin]

From: Yongzhi Liu <lyz_cs@pku.edu.cn>

[ Upstream commit 5d5c6dba2b43e28845d7d7ed32a36802329a5f52 ]

[why]
Resource release is needed on the error handling path
to prevent memory leak.

[how]
Fix this by adding kfree on the error handling path.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Yongzhi Liu <lyz_cs@pku.edu.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 80 ++++++++++++++-----
 1 file changed, 60 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 26719efa5396..12d437d9a0e4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -227,8 +227,10 @@ static ssize_t dp_link_settings_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -389,8 +391,10 @@ static ssize_t dp_phy_settings_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user((*(rd_buf + result)), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -1359,8 +1363,10 @@ static ssize_t dp_dsc_clock_en_read(struct file *f, char __user *buf,
 				break;
 	}
 
-	if (!pipe_ctx)
+	if (!pipe_ctx) {
+		kfree(rd_buf);
 		return -ENXIO;
+	}
 
 	dsc = pipe_ctx->stream_res.dsc;
 	if (dsc)
@@ -1376,8 +1382,10 @@ static ssize_t dp_dsc_clock_en_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -1546,8 +1554,10 @@ static ssize_t dp_dsc_slice_width_read(struct file *f, char __user *buf,
 				break;
 	}
 
-	if (!pipe_ctx)
+	if (!pipe_ctx) {
+		kfree(rd_buf);
 		return -ENXIO;
+	}
 
 	dsc = pipe_ctx->stream_res.dsc;
 	if (dsc)
@@ -1563,8 +1573,10 @@ static ssize_t dp_dsc_slice_width_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -1731,8 +1743,10 @@ static ssize_t dp_dsc_slice_height_read(struct file *f, char __user *buf,
 				break;
 	}
 
-	if (!pipe_ctx)
+	if (!pipe_ctx) {
+		kfree(rd_buf);
 		return -ENXIO;
+	}
 
 	dsc = pipe_ctx->stream_res.dsc;
 	if (dsc)
@@ -1748,8 +1762,10 @@ static ssize_t dp_dsc_slice_height_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -1912,8 +1928,10 @@ static ssize_t dp_dsc_bits_per_pixel_read(struct file *f, char __user *buf,
 				break;
 	}
 
-	if (!pipe_ctx)
+	if (!pipe_ctx) {
+		kfree(rd_buf);
 		return -ENXIO;
+	}
 
 	dsc = pipe_ctx->stream_res.dsc;
 	if (dsc)
@@ -1929,8 +1947,10 @@ static ssize_t dp_dsc_bits_per_pixel_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -2088,8 +2108,10 @@ static ssize_t dp_dsc_pic_width_read(struct file *f, char __user *buf,
 				break;
 	}
 
-	if (!pipe_ctx)
+	if (!pipe_ctx) {
+		kfree(rd_buf);
 		return -ENXIO;
+	}
 
 	dsc = pipe_ctx->stream_res.dsc;
 	if (dsc)
@@ -2105,8 +2127,10 @@ static ssize_t dp_dsc_pic_width_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -2145,8 +2169,10 @@ static ssize_t dp_dsc_pic_height_read(struct file *f, char __user *buf,
 				break;
 	}
 
-	if (!pipe_ctx)
+	if (!pipe_ctx) {
+		kfree(rd_buf);
 		return -ENXIO;
+	}
 
 	dsc = pipe_ctx->stream_res.dsc;
 	if (dsc)
@@ -2162,8 +2188,10 @@ static ssize_t dp_dsc_pic_height_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -2217,8 +2245,10 @@ static ssize_t dp_dsc_chunk_size_read(struct file *f, char __user *buf,
 				break;
 	}
 
-	if (!pipe_ctx)
+	if (!pipe_ctx) {
+		kfree(rd_buf);
 		return -ENXIO;
+	}
 
 	dsc = pipe_ctx->stream_res.dsc;
 	if (dsc)
@@ -2234,8 +2264,10 @@ static ssize_t dp_dsc_chunk_size_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -2289,8 +2321,10 @@ static ssize_t dp_dsc_slice_bpg_offset_read(struct file *f, char __user *buf,
 				break;
 	}
 
-	if (!pipe_ctx)
+	if (!pipe_ctx) {
+		kfree(rd_buf);
 		return -ENXIO;
+	}
 
 	dsc = pipe_ctx->stream_res.dsc;
 	if (dsc)
@@ -2306,8 +2340,10 @@ static ssize_t dp_dsc_slice_bpg_offset_read(struct file *f, char __user *buf,
 			break;
 
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 
 		buf += 1;
 		size -= 1;
@@ -3459,8 +3495,10 @@ static ssize_t dcc_en_bits_read(
 	dc->hwss.get_dcc_en_bits(dc, dcc_en_bits);
 
 	rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL);
-	if (!rd_buf)
+	if (!rd_buf) {
+		kfree(dcc_en_bits);
 		return -ENOMEM;
+	}
 
 	for (i = 0; i < num_pipes; i++)
 		offset += snprintf(rd_buf + offset, rd_buf_size - offset,
@@ -3473,8 +3511,10 @@ static ssize_t dcc_en_bits_read(
 		if (*pos >= rd_buf_size)
 			break;
 		r = put_user(*(rd_buf + result), buf);
-		if (r)
+		if (r) {
+			kfree(rd_buf);
 			return r; /* r = -EFAULT */
+		}
 		buf += 1;
 		size -= 1;
 		*pos += 1;
-- 
2.34.1

[PATCH AUTOSEL 5.17 013/149] drm/amd/display: Use PSR version selected during set_psr_caps

[Sasha Levin]

From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>

[ Upstream commit b80ddeb29d9df449f875f0b6f5de08d7537c02b8 ]

[Why]
If the DPCD caps specifies a PSR version newer than PSR_VERSION_1 then
we fallback to using PSR_VERSION_1 in amdgpu_dm_set_psr_caps.

This gets overriden with the raw DPCD value in amdgpu_dm_link_setup_psr,
which can result in DMCUB hanging if we pass in an unsupported PSR
version number.

[How]
Fix the hang by using link->psr_settings.psr_version directly during
amdgpu_dm_link_setup_psr.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
index c510638b4f99..a009fc654ac9 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
@@ -149,10 +149,8 @@ bool amdgpu_dm_link_setup_psr(struct dc_stream_state *stream)
 
 	link = stream->link;
 
-	psr_config.psr_version = link->dpcd_caps.psr_caps.psr_version;
-
-	if (psr_config.psr_version > 0) {
-		psr_config.psr_exit_link_training_required = 0x1;
+	if (link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED) {
+		psr_config.psr_version = link->psr_settings.psr_version;
 		psr_config.psr_frame_capture_indication_req = 0;
 		psr_config.psr_rfb_setup_time = 0x37;
 		psr_config.psr_sdp_transmit_line_num_deadline = 0x20;
-- 
2.34.1

[PATCH AUTOSEL 5.17 014/149] usb: gadget: tegra-xudc: Do not program SPARAM

[Sasha Levin]

From: Wayne Chang <waynec@nvidia.com>

[ Upstream commit 62fb61580eb48fc890b7bc9fb5fd263367baeca8 ]

According to the Tegra Technical Reference Manual, SPARAM
is a read-only register and should not be programmed in
the driver.

The change removes the wrong SPARAM usage.

Signed-off-by: Wayne Chang <waynec@nvidia.com>
Link: https://lore.kernel.org/r/20220107090443.149021-1-waynec@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/udc/tegra-xudc.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c
index 43f1b0d461c1..716d9ab2d2ff 100644
--- a/drivers/usb/gadget/udc/tegra-xudc.c
+++ b/drivers/usb/gadget/udc/tegra-xudc.c
@@ -32,9 +32,6 @@
 #include <linux/workqueue.h>
 
 /* XUSB_DEV registers */
-#define SPARAM 0x000
-#define  SPARAM_ERSTMAX_MASK GENMASK(20, 16)
-#define  SPARAM_ERSTMAX(x) (((x) << 16) & SPARAM_ERSTMAX_MASK)
 #define DB 0x004
 #define  DB_TARGET_MASK GENMASK(15, 8)
 #define  DB_TARGET(x) (((x) << 8) & DB_TARGET_MASK)
@@ -3295,11 +3292,6 @@ static void tegra_xudc_init_event_ring(struct tegra_xudc *xudc)
 	unsigned int i;
 	u32 val;
 
-	val = xudc_readl(xudc, SPARAM);
-	val &= ~(SPARAM_ERSTMAX_MASK);
-	val |= SPARAM_ERSTMAX(XUDC_NR_EVENT_RINGS);
-	xudc_writel(xudc, val, SPARAM);
-
 	for (i = 0; i < ARRAY_SIZE(xudc->event_ring); i++) {
 		memset(xudc->event_ring[i], 0, XUDC_EVENT_RING_SIZE *
 		       sizeof(*xudc->event_ring[i]));
-- 
2.34.1

[PATCH AUTOSEL 5.17 015/149] usb: gadget: tegra-xudc: Fix control endpoint's definitions

[Sasha Levin]

From: Wayne Chang <waynec@nvidia.com>

[ Upstream commit 7bd42fb95eb4f98495ccadf467ad15124208ec49 ]

According to the Tegra Technical Reference Manual, the seq_num
field of control endpoint is not [31:24] but [31:27]. Bit 24
is reserved and bit 26 is splitxstate.

The change fixes the wrong control endpoint's definitions.

Signed-off-by: Wayne Chang <waynec@nvidia.com>
Link: https://lore.kernel.org/r/20220107091349.149798-1-waynec@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/udc/tegra-xudc.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c
index 716d9ab2d2ff..be76f891b9c5 100644
--- a/drivers/usb/gadget/udc/tegra-xudc.c
+++ b/drivers/usb/gadget/udc/tegra-xudc.c
@@ -272,8 +272,10 @@ BUILD_EP_CONTEXT_RW(deq_hi, deq_hi, 0, 0xffffffff)
 BUILD_EP_CONTEXT_RW(avg_trb_len, tx_info, 0, 0xffff)
 BUILD_EP_CONTEXT_RW(max_esit_payload, tx_info, 16, 0xffff)
 BUILD_EP_CONTEXT_RW(edtla, rsvd[0], 0, 0xffffff)
-BUILD_EP_CONTEXT_RW(seq_num, rsvd[0], 24, 0xff)
+BUILD_EP_CONTEXT_RW(rsvd, rsvd[0], 24, 0x1)
 BUILD_EP_CONTEXT_RW(partial_td, rsvd[0], 25, 0x1)
+BUILD_EP_CONTEXT_RW(splitxstate, rsvd[0], 26, 0x1)
+BUILD_EP_CONTEXT_RW(seq_num, rsvd[0], 27, 0x1f)
 BUILD_EP_CONTEXT_RW(cerrcnt, rsvd[1], 18, 0x3)
 BUILD_EP_CONTEXT_RW(data_offset, rsvd[2], 0, 0x1ffff)
 BUILD_EP_CONTEXT_RW(numtrbs, rsvd[2], 22, 0x1f)
@@ -1554,6 +1556,9 @@ static int __tegra_xudc_ep_set_halt(struct tegra_xudc_ep *ep, bool halt)
 		ep_reload(xudc, ep->index);
 
 		ep_ctx_write_state(ep->context, EP_STATE_RUNNING);
+		ep_ctx_write_rsvd(ep->context, 0);
+		ep_ctx_write_partial_td(ep->context, 0);
+		ep_ctx_write_splitxstate(ep->context, 0);
 		ep_ctx_write_seq_num(ep->context, 0);
 
 		ep_reload(xudc, ep->index);
@@ -2809,7 +2814,10 @@ static void tegra_xudc_reset(struct tegra_xudc *xudc)
 	xudc->setup_seq_num = 0;
 	xudc->queued_setup_packet = false;
 
-	ep_ctx_write_seq_num(ep0->context, xudc->setup_seq_num);
+	ep_ctx_write_rsvd(ep0->context, 0);
+	ep_ctx_write_partial_td(ep0->context, 0);
+	ep_ctx_write_splitxstate(ep0->context, 0);
+	ep_ctx_write_seq_num(ep0->context, 0);
 
 	deq_ptr = trb_virt_to_phys(ep0, &ep0->transfer_ring[ep0->deq_ptr]);
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 016/149] usb: cdnsp: fix cdnsp_decode_trb function to properly handle ret value

[Sasha Levin]

From: Pawel Laszczak <pawell@cadence.com>

[ Upstream commit 03db9289b5ab59437e42a111a34545a7cedb5190 ]

Variable ret in function cdnsp_decode_trb is initialized but not
used. To fix this compiler warning patch adds checking whether the
data buffer has not been overflowed.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Link: https://lore.kernel.org/r/20220112053237.14309-1-pawell@gli-login.cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/cdns3/cdnsp-debug.h | 305 ++++++++++++++++----------------
 1 file changed, 154 insertions(+), 151 deletions(-)

diff --git a/drivers/usb/cdns3/cdnsp-debug.h b/drivers/usb/cdns3/cdnsp-debug.h
index a8776df2d4e0..f0ca865cce2a 100644
--- a/drivers/usb/cdns3/cdnsp-debug.h
+++ b/drivers/usb/cdns3/cdnsp-debug.h
@@ -182,208 +182,211 @@ static inline const char *cdnsp_decode_trb(char *str, size_t size, u32 field0,
 	int ep_id = TRB_TO_EP_INDEX(field3) - 1;
 	int type = TRB_FIELD_TO_TYPE(field3);
 	unsigned int ep_num;
-	int ret = 0;
+	int ret;
 	u32 temp;
 
 	ep_num = DIV_ROUND_UP(ep_id, 2);
 
 	switch (type) {
 	case TRB_LINK:
-		ret += snprintf(str, size,
-				"LINK %08x%08x intr %ld type '%s' flags %c:%c:%c:%c",
-				field1, field0, GET_INTR_TARGET(field2),
-				cdnsp_trb_type_string(type),
-				field3 & TRB_IOC ? 'I' : 'i',
-				field3 & TRB_CHAIN ? 'C' : 'c',
-				field3 & TRB_TC ? 'T' : 't',
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "LINK %08x%08x intr %ld type '%s' flags %c:%c:%c:%c",
+			       field1, field0, GET_INTR_TARGET(field2),
+			       cdnsp_trb_type_string(type),
+			       field3 & TRB_IOC ? 'I' : 'i',
+			       field3 & TRB_CHAIN ? 'C' : 'c',
+			       field3 & TRB_TC ? 'T' : 't',
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_TRANSFER:
 	case TRB_COMPLETION:
 	case TRB_PORT_STATUS:
 	case TRB_HC_EVENT:
-		ret += snprintf(str, size,
-				"ep%d%s(%d) type '%s' TRB %08x%08x status '%s'"
-				" len %ld slot %ld flags %c:%c",
-				ep_num, ep_id % 2 ? "out" : "in",
-				TRB_TO_EP_INDEX(field3),
-				cdnsp_trb_type_string(type), field1, field0,
-				cdnsp_trb_comp_code_string(GET_COMP_CODE(field2)),
-				EVENT_TRB_LEN(field2), TRB_TO_SLOT_ID(field3),
-				field3 & EVENT_DATA ? 'E' : 'e',
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "ep%d%s(%d) type '%s' TRB %08x%08x status '%s'"
+			       " len %ld slot %ld flags %c:%c",
+			       ep_num, ep_id % 2 ? "out" : "in",
+			       TRB_TO_EP_INDEX(field3),
+			       cdnsp_trb_type_string(type), field1, field0,
+			       cdnsp_trb_comp_code_string(GET_COMP_CODE(field2)),
+			       EVENT_TRB_LEN(field2), TRB_TO_SLOT_ID(field3),
+			       field3 & EVENT_DATA ? 'E' : 'e',
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_MFINDEX_WRAP:
-		ret += snprintf(str, size, "%s: flags %c",
-				cdnsp_trb_type_string(type),
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size, "%s: flags %c",
+			       cdnsp_trb_type_string(type),
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_SETUP:
-		ret += snprintf(str, size,
-				"type '%s' bRequestType %02x bRequest %02x "
-				"wValue %02x%02x wIndex %02x%02x wLength %d "
-				"length %ld TD size %ld intr %ld Setup ID %ld "
-				"flags %c:%c:%c",
-				cdnsp_trb_type_string(type),
-				field0 & 0xff,
-				(field0 & 0xff00) >> 8,
-				(field0 & 0xff000000) >> 24,
-				(field0 & 0xff0000) >> 16,
-				(field1 & 0xff00) >> 8,
-				field1 & 0xff,
-				(field1 & 0xff000000) >> 16 |
-				(field1 & 0xff0000) >> 16,
-				TRB_LEN(field2), GET_TD_SIZE(field2),
-				GET_INTR_TARGET(field2),
-				TRB_SETUPID_TO_TYPE(field3),
-				field3 & TRB_IDT ? 'D' : 'd',
-				field3 & TRB_IOC ? 'I' : 'i',
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "type '%s' bRequestType %02x bRequest %02x "
+			       "wValue %02x%02x wIndex %02x%02x wLength %d "
+			       "length %ld TD size %ld intr %ld Setup ID %ld "
+			       "flags %c:%c:%c",
+			       cdnsp_trb_type_string(type),
+			       field0 & 0xff,
+			       (field0 & 0xff00) >> 8,
+			       (field0 & 0xff000000) >> 24,
+			       (field0 & 0xff0000) >> 16,
+			       (field1 & 0xff00) >> 8,
+			       field1 & 0xff,
+			       (field1 & 0xff000000) >> 16 |
+			       (field1 & 0xff0000) >> 16,
+			       TRB_LEN(field2), GET_TD_SIZE(field2),
+			       GET_INTR_TARGET(field2),
+			       TRB_SETUPID_TO_TYPE(field3),
+			       field3 & TRB_IDT ? 'D' : 'd',
+			       field3 & TRB_IOC ? 'I' : 'i',
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_DATA:
-		ret += snprintf(str, size,
-				"type '%s' Buffer %08x%08x length %ld TD size %ld "
-				"intr %ld flags %c:%c:%c:%c:%c:%c:%c",
-				cdnsp_trb_type_string(type),
-				field1, field0, TRB_LEN(field2),
-				GET_TD_SIZE(field2),
-				GET_INTR_TARGET(field2),
-				field3 & TRB_IDT ? 'D' : 'i',
-				field3 & TRB_IOC ? 'I' : 'i',
-				field3 & TRB_CHAIN ? 'C' : 'c',
-				field3 & TRB_NO_SNOOP ? 'S' : 's',
-				field3 & TRB_ISP ? 'I' : 'i',
-				field3 & TRB_ENT ? 'E' : 'e',
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "type '%s' Buffer %08x%08x length %ld TD size %ld "
+			       "intr %ld flags %c:%c:%c:%c:%c:%c:%c",
+			       cdnsp_trb_type_string(type),
+			       field1, field0, TRB_LEN(field2),
+			       GET_TD_SIZE(field2),
+			       GET_INTR_TARGET(field2),
+			       field3 & TRB_IDT ? 'D' : 'i',
+			       field3 & TRB_IOC ? 'I' : 'i',
+			       field3 & TRB_CHAIN ? 'C' : 'c',
+			       field3 & TRB_NO_SNOOP ? 'S' : 's',
+			       field3 & TRB_ISP ? 'I' : 'i',
+			       field3 & TRB_ENT ? 'E' : 'e',
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_STATUS:
-		ret += snprintf(str, size,
-				"Buffer %08x%08x length %ld TD size %ld intr"
-				"%ld type '%s' flags %c:%c:%c:%c",
-				field1, field0, TRB_LEN(field2),
-				GET_TD_SIZE(field2),
-				GET_INTR_TARGET(field2),
-				cdnsp_trb_type_string(type),
-				field3 & TRB_IOC ? 'I' : 'i',
-				field3 & TRB_CHAIN ? 'C' : 'c',
-				field3 & TRB_ENT ? 'E' : 'e',
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "Buffer %08x%08x length %ld TD size %ld intr"
+			       "%ld type '%s' flags %c:%c:%c:%c",
+			       field1, field0, TRB_LEN(field2),
+			       GET_TD_SIZE(field2),
+			       GET_INTR_TARGET(field2),
+			       cdnsp_trb_type_string(type),
+			       field3 & TRB_IOC ? 'I' : 'i',
+			       field3 & TRB_CHAIN ? 'C' : 'c',
+			       field3 & TRB_ENT ? 'E' : 'e',
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_NORMAL:
 	case TRB_ISOC:
 	case TRB_EVENT_DATA:
 	case TRB_TR_NOOP:
-		ret += snprintf(str, size,
-				"type '%s' Buffer %08x%08x length %ld "
-				"TD size %ld intr %ld "
-				"flags %c:%c:%c:%c:%c:%c:%c:%c:%c",
-				cdnsp_trb_type_string(type),
-				field1, field0, TRB_LEN(field2),
-				GET_TD_SIZE(field2),
-				GET_INTR_TARGET(field2),
-				field3 & TRB_BEI ? 'B' : 'b',
-				field3 & TRB_IDT ? 'T' : 't',
-				field3 & TRB_IOC ? 'I' : 'i',
-				field3 & TRB_CHAIN ? 'C' : 'c',
-				field3 & TRB_NO_SNOOP ? 'S' : 's',
-				field3 & TRB_ISP ? 'I' : 'i',
-				field3 & TRB_ENT ? 'E' : 'e',
-				field3 & TRB_CYCLE ? 'C' : 'c',
-				!(field3 & TRB_EVENT_INVALIDATE) ? 'V' : 'v');
+		ret = snprintf(str, size,
+			       "type '%s' Buffer %08x%08x length %ld "
+			       "TD size %ld intr %ld "
+			       "flags %c:%c:%c:%c:%c:%c:%c:%c:%c",
+			       cdnsp_trb_type_string(type),
+			       field1, field0, TRB_LEN(field2),
+			       GET_TD_SIZE(field2),
+			       GET_INTR_TARGET(field2),
+			       field3 & TRB_BEI ? 'B' : 'b',
+			       field3 & TRB_IDT ? 'T' : 't',
+			       field3 & TRB_IOC ? 'I' : 'i',
+			       field3 & TRB_CHAIN ? 'C' : 'c',
+			       field3 & TRB_NO_SNOOP ? 'S' : 's',
+			       field3 & TRB_ISP ? 'I' : 'i',
+			       field3 & TRB_ENT ? 'E' : 'e',
+			       field3 & TRB_CYCLE ? 'C' : 'c',
+			       !(field3 & TRB_EVENT_INVALIDATE) ? 'V' : 'v');
 		break;
 	case TRB_CMD_NOOP:
 	case TRB_ENABLE_SLOT:
-		ret += snprintf(str, size, "%s: flags %c",
-				cdnsp_trb_type_string(type),
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size, "%s: flags %c",
+			       cdnsp_trb_type_string(type),
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_DISABLE_SLOT:
-		ret += snprintf(str, size, "%s: slot %ld flags %c",
-				cdnsp_trb_type_string(type),
-				TRB_TO_SLOT_ID(field3),
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size, "%s: slot %ld flags %c",
+			       cdnsp_trb_type_string(type),
+			       TRB_TO_SLOT_ID(field3),
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_ADDR_DEV:
-		ret += snprintf(str, size,
-				"%s: ctx %08x%08x slot %ld flags %c:%c",
-				cdnsp_trb_type_string(type), field1, field0,
-				TRB_TO_SLOT_ID(field3),
-				field3 & TRB_BSR ? 'B' : 'b',
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "%s: ctx %08x%08x slot %ld flags %c:%c",
+			       cdnsp_trb_type_string(type), field1, field0,
+			       TRB_TO_SLOT_ID(field3),
+			       field3 & TRB_BSR ? 'B' : 'b',
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_CONFIG_EP:
-		ret += snprintf(str, size,
-				"%s: ctx %08x%08x slot %ld flags %c:%c",
-				cdnsp_trb_type_string(type), field1, field0,
-				TRB_TO_SLOT_ID(field3),
-				field3 & TRB_DC ? 'D' : 'd',
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "%s: ctx %08x%08x slot %ld flags %c:%c",
+			       cdnsp_trb_type_string(type), field1, field0,
+			       TRB_TO_SLOT_ID(field3),
+			       field3 & TRB_DC ? 'D' : 'd',
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_EVAL_CONTEXT:
-		ret += snprintf(str, size,
-				"%s: ctx %08x%08x slot %ld flags %c",
-				cdnsp_trb_type_string(type), field1, field0,
-				TRB_TO_SLOT_ID(field3),
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "%s: ctx %08x%08x slot %ld flags %c",
+			       cdnsp_trb_type_string(type), field1, field0,
+			       TRB_TO_SLOT_ID(field3),
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_RESET_EP:
 	case TRB_HALT_ENDPOINT:
 	case TRB_FLUSH_ENDPOINT:
-		ret += snprintf(str, size,
-				"%s: ep%d%s(%d) ctx %08x%08x slot %ld flags %c",
-				cdnsp_trb_type_string(type),
-				ep_num, ep_id % 2 ? "out" : "in",
-				TRB_TO_EP_INDEX(field3), field1, field0,
-				TRB_TO_SLOT_ID(field3),
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "%s: ep%d%s(%d) ctx %08x%08x slot %ld flags %c",
+			       cdnsp_trb_type_string(type),
+			       ep_num, ep_id % 2 ? "out" : "in",
+			       TRB_TO_EP_INDEX(field3), field1, field0,
+			       TRB_TO_SLOT_ID(field3),
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_STOP_RING:
-		ret += snprintf(str, size,
-				"%s: ep%d%s(%d) slot %ld sp %d flags %c",
-				cdnsp_trb_type_string(type),
-				ep_num, ep_id % 2 ? "out" : "in",
-				TRB_TO_EP_INDEX(field3),
-				TRB_TO_SLOT_ID(field3),
-				TRB_TO_SUSPEND_PORT(field3),
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "%s: ep%d%s(%d) slot %ld sp %d flags %c",
+			       cdnsp_trb_type_string(type),
+			       ep_num, ep_id % 2 ? "out" : "in",
+			       TRB_TO_EP_INDEX(field3),
+			       TRB_TO_SLOT_ID(field3),
+			       TRB_TO_SUSPEND_PORT(field3),
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_SET_DEQ:
-		ret += snprintf(str, size,
-				"%s: ep%d%s(%d) deq %08x%08x stream %ld slot %ld  flags %c",
-				cdnsp_trb_type_string(type),
-				ep_num, ep_id % 2 ? "out" : "in",
-				TRB_TO_EP_INDEX(field3), field1, field0,
-				TRB_TO_STREAM_ID(field2),
-				TRB_TO_SLOT_ID(field3),
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size,
+			       "%s: ep%d%s(%d) deq %08x%08x stream %ld slot %ld  flags %c",
+			       cdnsp_trb_type_string(type),
+			       ep_num, ep_id % 2 ? "out" : "in",
+			       TRB_TO_EP_INDEX(field3), field1, field0,
+			       TRB_TO_STREAM_ID(field2),
+			       TRB_TO_SLOT_ID(field3),
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_RESET_DEV:
-		ret += snprintf(str, size, "%s: slot %ld flags %c",
-				cdnsp_trb_type_string(type),
-				TRB_TO_SLOT_ID(field3),
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		ret = snprintf(str, size, "%s: slot %ld flags %c",
+			       cdnsp_trb_type_string(type),
+			       TRB_TO_SLOT_ID(field3),
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	case TRB_ENDPOINT_NRDY:
-		temp  = TRB_TO_HOST_STREAM(field2);
-
-		ret += snprintf(str, size,
-				"%s: ep%d%s(%d) H_SID %x%s%s D_SID %lx flags %c:%c",
-				cdnsp_trb_type_string(type),
-				ep_num, ep_id % 2 ? "out" : "in",
-				TRB_TO_EP_INDEX(field3), temp,
-				temp == STREAM_PRIME_ACK ? "(PRIME)" : "",
-				temp == STREAM_REJECTED ? "(REJECTED)" : "",
-				TRB_TO_DEV_STREAM(field0),
-				field3 & TRB_STAT ? 'S' : 's',
-				field3 & TRB_CYCLE ? 'C' : 'c');
+		temp = TRB_TO_HOST_STREAM(field2);
+
+		ret = snprintf(str, size,
+			       "%s: ep%d%s(%d) H_SID %x%s%s D_SID %lx flags %c:%c",
+			       cdnsp_trb_type_string(type),
+			       ep_num, ep_id % 2 ? "out" : "in",
+			       TRB_TO_EP_INDEX(field3), temp,
+			       temp == STREAM_PRIME_ACK ? "(PRIME)" : "",
+			       temp == STREAM_REJECTED ? "(REJECTED)" : "",
+			       TRB_TO_DEV_STREAM(field0),
+			       field3 & TRB_STAT ? 'S' : 's',
+			       field3 & TRB_CYCLE ? 'C' : 'c');
 		break;
 	default:
-		ret += snprintf(str, size,
-				"type '%s' -> raw %08x %08x %08x %08x",
-				cdnsp_trb_type_string(type),
-				field0, field1, field2, field3);
+		ret = snprintf(str, size,
+			       "type '%s' -> raw %08x %08x %08x %08x",
+			       cdnsp_trb_type_string(type),
+			       field0, field1, field2, field3);
 	}
 
+	if (ret >= size)
+		pr_info("CDNSP: buffer overflowed.\n");
+
 	return str;
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 017/149] ptp: replace snprintf with sysfs_emit

[Sasha Levin]

From: Yang Guang <yang.guang5@zte.com.cn>

[ Upstream commit e2cf07654efb0fd7bbcb475c6f74be7b5755a8fd ]

coccinelle report:
./drivers/ptp/ptp_sysfs.c:17:8-16:
WARNING: use scnprintf or sprintf
./drivers/ptp/ptp_sysfs.c:390:8-16:
WARNING: use scnprintf or sprintf

Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ptp/ptp_sysfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ptp/ptp_sysfs.c b/drivers/ptp/ptp_sysfs.c
index 41b92dc2f011..9233bfedeb17 100644
--- a/drivers/ptp/ptp_sysfs.c
+++ b/drivers/ptp/ptp_sysfs.c
@@ -14,7 +14,7 @@ static ssize_t clock_name_show(struct device *dev,
 			       struct device_attribute *attr, char *page)
 {
 	struct ptp_clock *ptp = dev_get_drvdata(dev);
-	return snprintf(page, PAGE_SIZE-1, "%s\n", ptp->info->name);
+	return sysfs_emit(page, "%s\n", ptp->info->name);
 }
 static DEVICE_ATTR_RO(clock_name);
 
@@ -387,7 +387,7 @@ static ssize_t ptp_pin_show(struct device *dev, struct device_attribute *attr,
 
 	mutex_unlock(&ptp->pincfg_mux);
 
-	return snprintf(page, PAGE_SIZE, "%u %u\n", func, chan);
+	return sysfs_emit(page, "%u %u\n", func, chan);
 }
 
 static ssize_t ptp_pin_store(struct device *dev, struct device_attribute *attr,
-- 
2.34.1

[PATCH AUTOSEL 5.17 018/149] Bluetooth: hci_sync: Fix queuing commands when HCI_UNREGISTER is set

[Sasha Levin]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

[ Upstream commit 0b94f2651f56b9e4aa5f012b0d7eb57308c773cf ]

hci_cmd_sync_queue shall return an error if HCI_UNREGISTER flag has
been set as that means hci_unregister_dev has been called so it will
likely cause a uaf after the timeout as the hdev will be freed.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_sync.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 4426cc2aaf4a..21350dc88868 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -379,6 +379,9 @@ int hci_cmd_sync_queue(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
 {
 	struct hci_cmd_sync_work_entry *entry;
 
+	if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
+		return -ENODEV;
+
 	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
 	if (!entry)
 		return -ENOMEM;
-- 
2.34.1

[PATCH AUTOSEL 5.17 019/149] selftests, xsk: Fix bpf_res cleanup test

[Sasha Levin]

From: Magnus Karlsson <magnus.karlsson@intel.com>

[ Upstream commit 3b22523bca02b0d5618c08b93d8fd1fb578e1cc3 ]

After commit 710ad98c363a ("veth: Do not record rx queue hint in veth_xmit"),
veth no longer receives traffic on the same queue as it was sent on. This
breaks the bpf_res test for the AF_XDP selftests as the socket tied to
queue 1 will not receive traffic anymore.

Modify the test so that two sockets are tied to queue id 0 using a shared
umem instead. When killing the first socket enter the second socket into
the xskmap so that traffic will flow to it. This will still test that the
resources are not cleaned up until after the second socket dies, without
having to rely on veth supporting rx_queue hints.

Reported-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20220125082945.26179-1-magnus.karlsson@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/xdpxceiver.c | 80 +++++++++++++++---------
 tools/testing/selftests/bpf/xdpxceiver.h |  2 +-
 2 files changed, 50 insertions(+), 32 deletions(-)

diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c
index 0a5d23da486d..4686897181b6 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.c
+++ b/tools/testing/selftests/bpf/xdpxceiver.c
@@ -266,22 +266,24 @@ static int xsk_configure_umem(struct xsk_umem_info *umem, void *buffer, u64 size
 }
 
 static int xsk_configure_socket(struct xsk_socket_info *xsk, struct xsk_umem_info *umem,
-				struct ifobject *ifobject, u32 qid)
+				struct ifobject *ifobject, bool shared)
 {
-	struct xsk_socket_config cfg;
+	struct xsk_socket_config cfg = {};
 	struct xsk_ring_cons *rxr;
 	struct xsk_ring_prod *txr;
 
 	xsk->umem = umem;
 	cfg.rx_size = xsk->rxqsize;
 	cfg.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
-	cfg.libbpf_flags = 0;
+	cfg.libbpf_flags = XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD;
 	cfg.xdp_flags = ifobject->xdp_flags;
 	cfg.bind_flags = ifobject->bind_flags;
+	if (shared)
+		cfg.bind_flags |= XDP_SHARED_UMEM;
 
 	txr = ifobject->tx_on ? &xsk->tx : NULL;
 	rxr = ifobject->rx_on ? &xsk->rx : NULL;
-	return xsk_socket__create(&xsk->xsk, ifobject->ifname, qid, umem->umem, rxr, txr, &cfg);
+	return xsk_socket__create(&xsk->xsk, ifobject->ifname, 0, umem->umem, rxr, txr, &cfg);
 }
 
 static struct option long_options[] = {
@@ -387,7 +389,6 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx,
 	for (i = 0; i < MAX_INTERFACES; i++) {
 		struct ifobject *ifobj = i ? ifobj_rx : ifobj_tx;
 
-		ifobj->umem = &ifobj->umem_arr[0];
 		ifobj->xsk = &ifobj->xsk_arr[0];
 		ifobj->use_poll = false;
 		ifobj->pacing_on = true;
@@ -401,11 +402,12 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx,
 			ifobj->tx_on = false;
 		}
 
+		memset(ifobj->umem, 0, sizeof(*ifobj->umem));
+		ifobj->umem->num_frames = DEFAULT_UMEM_BUFFERS;
+		ifobj->umem->frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE;
+
 		for (j = 0; j < MAX_SOCKETS; j++) {
-			memset(&ifobj->umem_arr[j], 0, sizeof(ifobj->umem_arr[j]));
 			memset(&ifobj->xsk_arr[j], 0, sizeof(ifobj->xsk_arr[j]));
-			ifobj->umem_arr[j].num_frames = DEFAULT_UMEM_BUFFERS;
-			ifobj->umem_arr[j].frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE;
 			ifobj->xsk_arr[j].rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS;
 		}
 	}
@@ -947,7 +949,10 @@ static void tx_stats_validate(struct ifobject *ifobject)
 
 static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
 {
+	u64 umem_sz = ifobject->umem->num_frames * ifobject->umem->frame_size;
 	int mmap_flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE;
+	int ret, ifindex;
+	void *bufs;
 	u32 i;
 
 	ifobject->ns_fd = switch_namespace(ifobject->nsname);
@@ -955,23 +960,20 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
 	if (ifobject->umem->unaligned_mode)
 		mmap_flags |= MAP_HUGETLB;
 
-	for (i = 0; i < test->nb_sockets; i++) {
-		u64 umem_sz = ifobject->umem->num_frames * ifobject->umem->frame_size;
-		u32 ctr = 0;
-		void *bufs;
-		int ret;
+	bufs = mmap(NULL, umem_sz, PROT_READ | PROT_WRITE, mmap_flags, -1, 0);
+	if (bufs == MAP_FAILED)
+		exit_with_error(errno);
 
-		bufs = mmap(NULL, umem_sz, PROT_READ | PROT_WRITE, mmap_flags, -1, 0);
-		if (bufs == MAP_FAILED)
-			exit_with_error(errno);
+	ret = xsk_configure_umem(ifobject->umem, bufs, umem_sz);
+	if (ret)
+		exit_with_error(-ret);
 
-		ret = xsk_configure_umem(&ifobject->umem_arr[i], bufs, umem_sz);
-		if (ret)
-			exit_with_error(-ret);
+	for (i = 0; i < test->nb_sockets; i++) {
+		u32 ctr = 0;
 
 		while (ctr++ < SOCK_RECONF_CTR) {
-			ret = xsk_configure_socket(&ifobject->xsk_arr[i], &ifobject->umem_arr[i],
-						   ifobject, i);
+			ret = xsk_configure_socket(&ifobject->xsk_arr[i], ifobject->umem,
+						   ifobject, !!i);
 			if (!ret)
 				break;
 
@@ -982,8 +984,22 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
 		}
 	}
 
-	ifobject->umem = &ifobject->umem_arr[0];
 	ifobject->xsk = &ifobject->xsk_arr[0];
+
+	if (!ifobject->rx_on)
+		return;
+
+	ifindex = if_nametoindex(ifobject->ifname);
+	if (!ifindex)
+		exit_with_error(errno);
+
+	ret = xsk_setup_xdp_prog(ifindex, &ifobject->xsk_map_fd);
+	if (ret)
+		exit_with_error(-ret);
+
+	ret = xsk_socket__update_xskmap(ifobject->xsk->xsk, ifobject->xsk_map_fd);
+	if (ret)
+		exit_with_error(-ret);
 }
 
 static void testapp_cleanup_xsk_res(struct ifobject *ifobj)
@@ -1139,14 +1155,16 @@ static void testapp_bidi(struct test_spec *test)
 
 static void swap_xsk_resources(struct ifobject *ifobj_tx, struct ifobject *ifobj_rx)
 {
+	int ret;
+
 	xsk_socket__delete(ifobj_tx->xsk->xsk);
-	xsk_umem__delete(ifobj_tx->umem->umem);
 	xsk_socket__delete(ifobj_rx->xsk->xsk);
-	xsk_umem__delete(ifobj_rx->umem->umem);
-	ifobj_tx->umem = &ifobj_tx->umem_arr[1];
 	ifobj_tx->xsk = &ifobj_tx->xsk_arr[1];
-	ifobj_rx->umem = &ifobj_rx->umem_arr[1];
 	ifobj_rx->xsk = &ifobj_rx->xsk_arr[1];
+
+	ret = xsk_socket__update_xskmap(ifobj_rx->xsk->xsk, ifobj_rx->xsk_map_fd);
+	if (ret)
+		exit_with_error(-ret);
 }
 
 static void testapp_bpf_res(struct test_spec *test)
@@ -1405,13 +1423,13 @@ static struct ifobject *ifobject_create(void)
 	if (!ifobj->xsk_arr)
 		goto out_xsk_arr;
 
-	ifobj->umem_arr = calloc(MAX_SOCKETS, sizeof(*ifobj->umem_arr));
-	if (!ifobj->umem_arr)
-		goto out_umem_arr;
+	ifobj->umem = calloc(1, sizeof(*ifobj->umem));
+	if (!ifobj->umem)
+		goto out_umem;
 
 	return ifobj;
 
-out_umem_arr:
+out_umem:
 	free(ifobj->xsk_arr);
 out_xsk_arr:
 	free(ifobj);
@@ -1420,7 +1438,7 @@ static struct ifobject *ifobject_create(void)
 
 static void ifobject_delete(struct ifobject *ifobj)
 {
-	free(ifobj->umem_arr);
+	free(ifobj->umem);
 	free(ifobj->xsk_arr);
 	free(ifobj);
 }
diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h
index 2f705f44b748..62a3e6388632 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.h
+++ b/tools/testing/selftests/bpf/xdpxceiver.h
@@ -125,10 +125,10 @@ struct ifobject {
 	struct xsk_socket_info *xsk;
 	struct xsk_socket_info *xsk_arr;
 	struct xsk_umem_info *umem;
-	struct xsk_umem_info *umem_arr;
 	thread_func_t func_ptr;
 	struct pkt_stream *pkt_stream;
 	int ns_fd;
+	int xsk_map_fd;
 	u32 dst_ip;
 	u32 src_ip;
 	u32 xdp_flags;
-- 
2.34.1

[PATCH AUTOSEL 5.17 020/149] net/mlx5e: TC, Hold sample_attr on stack instead of pointer

[Sasha Levin]

From: Roi Dayan <roid@nvidia.com>

[ Upstream commit eeed226ed110ed40598e60e29b66643012277be7 ]

In later commit we are going to instantiate multiple attr instances
for flow instead of single attr.
Parsing TC sample allocates a new memory but there is no symmetric
cleanup in the infrastructure.
To avoid asymmetric alloc/free use sample_attr as part of the flow attr
and not allocated and held as a pointer.
This will avoid a cleanup leak when sample action is not on the first
attr.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c |  7 +------
 drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c | 10 +++++-----
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c        |  1 -
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.h        |  2 +-
 .../net/ethernet/mellanox/mlx5/core/eswitch_offloads.c |  6 +++---
 5 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c
index 6699bdf5cf01..b895c378cfaf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c
@@ -27,11 +27,7 @@ tc_act_parse_sample(struct mlx5e_tc_act_parse_state *parse_state,
 		    struct mlx5e_priv *priv,
 		    struct mlx5_flow_attr *attr)
 {
-	struct mlx5e_sample_attr *sample_attr;
-
-	sample_attr = kzalloc(sizeof(*attr->sample_attr), GFP_KERNEL);
-	if (!sample_attr)
-		return -ENOMEM;
+	struct mlx5e_sample_attr *sample_attr = &attr->sample_attr;
 
 	sample_attr->rate = act->sample.rate;
 	sample_attr->group_num = act->sample.psample_group->group_num;
@@ -39,7 +35,6 @@ tc_act_parse_sample(struct mlx5e_tc_act_parse_state *parse_state,
 	if (act->sample.truncate)
 		sample_attr->trunc_size = act->sample.trunc_size;
 
-	attr->sample_attr = sample_attr;
 	flow_flag_set(parse_state->flow, SAMPLE);
 
 	return 0;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c
index ff4b4f8a5a9d..0faaf9a4b531 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c
@@ -513,7 +513,7 @@ mlx5e_tc_sample_offload(struct mlx5e_tc_psample *tc_psample,
 	sample_flow = kzalloc(sizeof(*sample_flow), GFP_KERNEL);
 	if (!sample_flow)
 		return ERR_PTR(-ENOMEM);
-	sample_attr = attr->sample_attr;
+	sample_attr = &attr->sample_attr;
 	sample_attr->sample_flow = sample_flow;
 
 	/* For NICs with reg_c_preserve support or decap action, use
@@ -546,6 +546,7 @@ mlx5e_tc_sample_offload(struct mlx5e_tc_psample *tc_psample,
 		err = PTR_ERR(sample_flow->sampler);
 		goto err_sampler;
 	}
+	sample_attr->sampler_id = sample_flow->sampler->sampler_id;
 
 	/* Create an id mapping reg_c0 value to sample object. */
 	restore_obj.type = MLX5_MAPPED_OBJ_SAMPLE;
@@ -585,8 +586,7 @@ mlx5e_tc_sample_offload(struct mlx5e_tc_psample *tc_psample,
 	pre_attr->outer_match_level = attr->outer_match_level;
 	pre_attr->chain = attr->chain;
 	pre_attr->prio = attr->prio;
-	pre_attr->sample_attr = attr->sample_attr;
-	sample_attr->sampler_id = sample_flow->sampler->sampler_id;
+	pre_attr->sample_attr = *sample_attr;
 	pre_esw_attr = pre_attr->esw_attr;
 	pre_esw_attr->in_mdev = esw_attr->in_mdev;
 	pre_esw_attr->in_rep = esw_attr->in_rep;
@@ -633,11 +633,11 @@ mlx5e_tc_sample_unoffload(struct mlx5e_tc_psample *tc_psample,
 	 * will hit fw syndromes.
 	 */
 	esw = tc_psample->esw;
-	sample_flow = attr->sample_attr->sample_flow;
+	sample_flow = attr->sample_attr.sample_flow;
 	mlx5_eswitch_del_offloaded_rule(esw, sample_flow->pre_rule, sample_flow->pre_attr);
 
 	sample_restore_put(tc_psample, sample_flow->restore);
-	mapping_remove(esw->offloads.reg_c0_obj_pool, attr->sample_attr->restore_obj_id);
+	mapping_remove(esw->offloads.reg_c0_obj_pool, attr->sample_attr.restore_obj_id);
 	sampler_put(tc_psample, sample_flow->sampler);
 	if (sample_flow->post_act_handle)
 		mlx5e_tc_post_act_del(tc_psample->post_act, sample_flow->post_act_handle);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index b27532a9301e..7e5c00349ccf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -1634,7 +1634,6 @@ static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv,
 	if (flow_flag_test(flow, L3_TO_L2_DECAP))
 		mlx5e_detach_decap(priv, flow);
 
-	kfree(attr->sample_attr);
 	kvfree(attr->esw_attr->rx_tun_attr);
 	kvfree(attr->parse_attr);
 	kfree(flow->attr);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h
index 5ffae9b13066..2f09e34db9ff 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h
@@ -71,7 +71,7 @@ struct mlx5_flow_attr {
 	struct mlx5_fc *counter;
 	struct mlx5_modify_hdr *modify_hdr;
 	struct mlx5_ct_attr ct_attr;
-	struct mlx5e_sample_attr *sample_attr;
+	struct mlx5e_sample_attr sample_attr;
 	struct mlx5e_tc_flow_parse_attr *parse_attr;
 	u32 chain;
 	u16 prio;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index cfcd72bad9af..e7e7b4b0dcdb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -201,12 +201,12 @@ esw_cleanup_decap_indir(struct mlx5_eswitch *esw,
 static int
 esw_setup_sampler_dest(struct mlx5_flow_destination *dest,
 		       struct mlx5_flow_act *flow_act,
-		       struct mlx5_flow_attr *attr,
+		       u32 sampler_id,
 		       int i)
 {
 	flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
 	dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER;
-	dest[i].sampler_id = attr->sample_attr->sampler_id;
+	dest[i].sampler_id = sampler_id;
 
 	return 0;
 }
@@ -466,7 +466,7 @@ esw_setup_dests(struct mlx5_flow_destination *dest,
 		attr->flags |= MLX5_ESW_ATTR_FLAG_SRC_REWRITE;
 
 	if (attr->flags & MLX5_ESW_ATTR_FLAG_SAMPLE) {
-		esw_setup_sampler_dest(dest, flow_act, attr, *i);
+		esw_setup_sampler_dest(dest, flow_act, attr->sample_attr.sampler_id, *i);
 		(*i)++;
 	} else if (attr->dest_ft) {
 		esw_setup_ft_dest(dest, flow_act, esw, attr, spec, *i);
-- 
2.34.1

[PATCH AUTOSEL 5.17 021/149] drm/amdkfd: Don't take process mutex for svm ioctls

[Sasha Levin]

From: Philip Yang <Philip.Yang@amd.com>

[ Upstream commit ac7c48c0cce00d03b3c95fddcccb0a45257e33e3 ]

SVM ioctls take proper svms->lock to handle race conditions, don't need
take process mutex to serialize ioctls. This also fixes circular locking
warning:

WARNING: possible circular locking dependency detected

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock((work_completion)(&svms->deferred_list_work));
                                lock(&process->mutex);
                     lock((work_completion)(&svms->deferred_list_work));
   lock(&process->mutex);

   *** DEADLOCK ***

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 337953af7c2f..70122978bdd0 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1846,13 +1846,9 @@ static int kfd_ioctl_svm(struct file *filep, struct kfd_process *p, void *data)
 	if (!args->start_addr || !args->size)
 		return -EINVAL;
 
-	mutex_lock(&p->mutex);
-
 	r = svm_ioctl(p, args->op, args->start_addr, args->size, args->nattr,
 		      args->attrs);
 
-	mutex_unlock(&p->mutex);
-
 	return r;
 }
 #else
-- 
2.34.1

[PATCH AUTOSEL 5.17 022/149] drm/amdkfd: Ensure mm remain valid in svm deferred_list work

[Sasha Levin]

From: Philip Yang <Philip.Yang@amd.com>

[ Upstream commit 367c9b0f1b8750a704070e7ae85234d591290434 ]

svm_deferred_list work should continue to handle deferred_range_list
which maybe split to child range to avoid child range leak, and remove
ranges mmu interval notifier to avoid mm mm_count leak. So taking mm
reference when adding range to deferred list, to ensure mm is valid in
the scheduled deferred_list_work, and drop the mm referrence after range
is handled.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reported-by: Ruili Ji <ruili.ji@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 62 ++++++++++++++++------------
 1 file changed, 36 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index f2805ba74c80..225affcddbc1 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -1985,10 +1985,9 @@ svm_range_update_notifier_and_interval_tree(struct mm_struct *mm,
 }
 
 static void
-svm_range_handle_list_op(struct svm_range_list *svms, struct svm_range *prange)
+svm_range_handle_list_op(struct svm_range_list *svms, struct svm_range *prange,
+			 struct mm_struct *mm)
 {
-	struct mm_struct *mm = prange->work_item.mm;
-
 	switch (prange->work_item.op) {
 	case SVM_OP_NULL:
 		pr_debug("NULL OP 0x%p prange 0x%p [0x%lx 0x%lx]\n",
@@ -2071,34 +2070,41 @@ static void svm_range_deferred_list_work(struct work_struct *work)
 	pr_debug("enter svms 0x%p\n", svms);
 
 	p = container_of(svms, struct kfd_process, svms);
-	/* Avoid mm is gone when inserting mmu notifier */
-	mm = get_task_mm(p->lead_thread);
-	if (!mm) {
-		pr_debug("svms 0x%p process mm gone\n", svms);
-		return;
-	}
-retry:
-	mmap_write_lock(mm);
-
-	/* Checking for the need to drain retry faults must be inside
-	 * mmap write lock to serialize with munmap notifiers.
-	 */
-	if (unlikely(atomic_read(&svms->drain_pagefaults))) {
-		mmap_write_unlock(mm);
-		svm_range_drain_retry_fault(svms);
-		goto retry;
-	}
 
 	spin_lock(&svms->deferred_list_lock);
 	while (!list_empty(&svms->deferred_range_list)) {
 		prange = list_first_entry(&svms->deferred_range_list,
 					  struct svm_range, deferred_list);
-		list_del_init(&prange->deferred_list);
 		spin_unlock(&svms->deferred_list_lock);
 
 		pr_debug("prange 0x%p [0x%lx 0x%lx] op %d\n", prange,
 			 prange->start, prange->last, prange->work_item.op);
 
+		mm = prange->work_item.mm;
+retry:
+		mmap_write_lock(mm);
+
+		/* Checking for the need to drain retry faults must be inside
+		 * mmap write lock to serialize with munmap notifiers.
+		 */
+		if (unlikely(atomic_read(&svms->drain_pagefaults))) {
+			mmap_write_unlock(mm);
+			svm_range_drain_retry_fault(svms);
+			goto retry;
+		}
+
+		/* Remove from deferred_list must be inside mmap write lock, for
+		 * two race cases:
+		 * 1. unmap_from_cpu may change work_item.op and add the range
+		 *    to deferred_list again, cause use after free bug.
+		 * 2. svm_range_list_lock_and_flush_work may hold mmap write
+		 *    lock and continue because deferred_list is empty, but
+		 *    deferred_list work is actually waiting for mmap lock.
+		 */
+		spin_lock(&svms->deferred_list_lock);
+		list_del_init(&prange->deferred_list);
+		spin_unlock(&svms->deferred_list_lock);
+
 		mutex_lock(&svms->lock);
 		mutex_lock(&prange->migrate_mutex);
 		while (!list_empty(&prange->child_list)) {
@@ -2109,19 +2115,20 @@ static void svm_range_deferred_list_work(struct work_struct *work)
 			pr_debug("child prange 0x%p op %d\n", pchild,
 				 pchild->work_item.op);
 			list_del_init(&pchild->child_list);
-			svm_range_handle_list_op(svms, pchild);
+			svm_range_handle_list_op(svms, pchild, mm);
 		}
 		mutex_unlock(&prange->migrate_mutex);
 
-		svm_range_handle_list_op(svms, prange);
+		svm_range_handle_list_op(svms, prange, mm);
 		mutex_unlock(&svms->lock);
+		mmap_write_unlock(mm);
+
+		/* Pairs with mmget in svm_range_add_list_work */
+		mmput(mm);
 
 		spin_lock(&svms->deferred_list_lock);
 	}
 	spin_unlock(&svms->deferred_list_lock);
-
-	mmap_write_unlock(mm);
-	mmput(mm);
 	pr_debug("exit svms 0x%p\n", svms);
 }
 
@@ -2139,6 +2146,9 @@ svm_range_add_list_work(struct svm_range_list *svms, struct svm_range *prange,
 			prange->work_item.op = op;
 	} else {
 		prange->work_item.op = op;
+
+		/* Pairs with mmput in deferred_list_work */
+		mmget(mm);
 		prange->work_item.mm = mm;
 		list_add_tail(&prange->deferred_list,
 			      &prange->svms->deferred_range_list);
-- 
2.34.1

[PATCH AUTOSEL 5.17 023/149] drm/amdkfd: svm range restore work deadlock when process exit

[Sasha Levin]

From: Philip Yang <Philip.Yang@amd.com>

[ Upstream commit 6225bb3a88d22594aacea2485dc28ca12d596721 ]

kfd_process_notifier_release flush svm_range_restore_work
which calls svm_range_list_lock_and_flush_work to flush deferred_list
work, but if deferred_list work mmput release the last user, it will
call exit_mmap -> notifier_release, it is deadlock with below backtrace.

Move flush svm_range_restore_work to kfd_process_wq_release to avoid
deadlock. Then svm_range_restore_work take task->mm ref to avoid mm is
gone while validating and mapping ranges to GPU.

Workqueue: events svm_range_deferred_list_work [amdgpu]
Call Trace:
 wait_for_completion+0x94/0x100
 __flush_work+0x12a/0x1e0
 __cancel_work_timer+0x10e/0x190
 cancel_delayed_work_sync+0x13/0x20
 kfd_process_notifier_release+0x98/0x2a0 [amdgpu]
 __mmu_notifier_release+0x74/0x1f0
 exit_mmap+0x170/0x200
 mmput+0x5d/0x130
 svm_range_deferred_list_work+0x104/0x230 [amdgpu]
 process_one_work+0x220/0x3c0

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reported-by: Ruili Ji <ruili.ji@amd.com>
Tested-by: Ruili Ji <ruili.ji@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_process.c |  1 -
 drivers/gpu/drm/amd/amdkfd/kfd_svm.c     | 15 +++++++++------
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index d1145da5348f..74f162887d3b 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -1150,7 +1150,6 @@ static void kfd_process_notifier_release(struct mmu_notifier *mn,
 
 	cancel_delayed_work_sync(&p->eviction_work);
 	cancel_delayed_work_sync(&p->restore_work);
-	cancel_delayed_work_sync(&p->svms.restore_work);
 
 	mutex_lock(&p->mutex);
 
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index 225affcddbc1..1cf9041c9727 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -1643,13 +1643,14 @@ static void svm_range_restore_work(struct work_struct *work)
 
 	pr_debug("restore svm ranges\n");
 
-	/* kfd_process_notifier_release destroys this worker thread. So during
-	 * the lifetime of this thread, kfd_process and mm will be valid.
-	 */
 	p = container_of(svms, struct kfd_process, svms);
-	mm = p->mm;
-	if (!mm)
+
+	/* Keep mm reference when svm_range_validate_and_map ranges */
+	mm = get_task_mm(p->lead_thread);
+	if (!mm) {
+		pr_debug("svms 0x%p process mm gone\n", svms);
 		return;
+	}
 
 	svm_range_list_lock_and_flush_work(svms, mm);
 	mutex_lock(&svms->lock);
@@ -1703,6 +1704,7 @@ static void svm_range_restore_work(struct work_struct *work)
 out_reschedule:
 	mutex_unlock(&svms->lock);
 	mmap_write_unlock(mm);
+	mmput(mm);
 
 	/* If validation failed, reschedule another attempt */
 	if (evicted_ranges) {
@@ -2840,6 +2842,8 @@ void svm_range_list_fini(struct kfd_process *p)
 
 	pr_debug("pasid 0x%x svms 0x%p\n", p->pasid, &p->svms);
 
+	cancel_delayed_work_sync(&p->svms.restore_work);
+
 	/* Ensure list work is finished before process is destroyed */
 	flush_work(&p->svms.deferred_list_work);
 
@@ -2850,7 +2854,6 @@ void svm_range_list_fini(struct kfd_process *p)
 	atomic_inc(&p->svms.drain_pagefaults);
 	svm_range_drain_retry_fault(&p->svms);
 
-
 	list_for_each_entry_safe(prange, next, &p->svms.list, list) {
 		svm_range_unlink(prange);
 		svm_range_remove_notifier(prange);
-- 
2.34.1

[PATCH AUTOSEL 5.17 024/149] drm/amdgpu: Fix an error message in rmmod

[Sasha Levin]

From: "Tianci.Yin" <tianci.yin@amd.com>

[ Upstream commit 7270e8957eb9aacf5914605d04865f3829a14bce ]

[why]
In rmmod procedure, kfd sends cp a dequeue request, but the
request does not get response, then an error message "cp
queue pipe 4 queue 0 preemption failed" printed.

[how]
Performing kfd suspending after disabling gfxoff can fix it.

Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index ed077de426d9..b793682071b2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2708,11 +2708,11 @@ static int amdgpu_device_ip_fini_early(struct amdgpu_device *adev)
 		}
 	}
 
-	amdgpu_amdkfd_suspend(adev, false);
-
 	amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
 	amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
 
+	amdgpu_amdkfd_suspend(adev, false);
+
 	/* Workaroud for ASICs need to disable SMC first */
 	amdgpu_device_smu_fini_early(adev);
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 025/149] mlxsw: spectrum: Guard against invalid local ports

[Sasha Levin]

From: Amit Cohen <amcohen@nvidia.com>

[ Upstream commit bcdfd615f83b4bd04678109bf18022d1476e4bbf ]

When processing events generated by the device's firmware, the driver
protects itself from events reported for non-existent local ports, but
not for the CPU port (local port 0), which exists, but does not have all
the fields as any local port.

This can result in a NULL pointer dereference when trying access
'struct mlxsw_sp_port' fields which are not initialized for CPU port.

Commit 63b08b1f6834 ("mlxsw: spectrum: Protect driver from buggy firmware")
already handled such issue by bailing early when processing a PUDE event
reported for the CPU port.

Generalize the approach by moving the check to a common function and
making use of it in all relevant places.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c           | 4 +---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.h           | 7 +++++++
 drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c       | 3 +--
 drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 3 +--
 4 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index aa411dec62f0..eb1319d63613 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2148,13 +2148,11 @@ static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
 	struct mlxsw_sp *mlxsw_sp = priv;
 	struct mlxsw_sp_port *mlxsw_sp_port;
 	enum mlxsw_reg_pude_oper_status status;
-	unsigned int max_ports;
 	u16 local_port;
 
-	max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
 	local_port = mlxsw_reg_pude_local_port_get(pude_pl);
 
-	if (WARN_ON_ONCE(!local_port || local_port >= max_ports))
+	if (WARN_ON_ONCE(!mlxsw_sp_local_port_is_valid(mlxsw_sp, local_port)))
 		return;
 	mlxsw_sp_port = mlxsw_sp->ports[local_port];
 	if (!mlxsw_sp_port)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index bb2442e1f705..30942b6ffcf9 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -481,6 +481,13 @@ int
 mlxsw_sp_port_vlan_classification_set(struct mlxsw_sp_port *mlxsw_sp_port,
 				      bool is_8021ad_tagged,
 				      bool is_8021q_tagged);
+static inline bool
+mlxsw_sp_local_port_is_valid(struct mlxsw_sp *mlxsw_sp, u16 local_port)
+{
+	unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
+
+	return local_port < max_ports && local_port;
+}
 
 /* spectrum_buffers.c */
 struct mlxsw_sp_hdroom_prio {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
index 0ff163fbc775..35422e64d89f 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
@@ -568,12 +568,11 @@ void mlxsw_sp1_ptp_got_timestamp(struct mlxsw_sp *mlxsw_sp, bool ingress,
 				 u8 domain_number, u16 sequence_id,
 				 u64 timestamp)
 {
-	unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
 	struct mlxsw_sp_port *mlxsw_sp_port;
 	struct mlxsw_sp1_ptp_key key;
 	u8 types;
 
-	if (WARN_ON_ONCE(local_port >= max_ports))
+	if (WARN_ON_ONCE(!mlxsw_sp_local_port_is_valid(mlxsw_sp, local_port)))
 		return;
 	mlxsw_sp_port = mlxsw_sp->ports[local_port];
 	if (!mlxsw_sp_port)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 65c1724c63b0..bffdb41fc4ed 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -2616,7 +2616,6 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
 					    char *sfn_pl, int rec_index,
 					    bool adding)
 {
-	unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
 	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
 	struct mlxsw_sp_bridge_device *bridge_device;
 	struct mlxsw_sp_bridge_port *bridge_port;
@@ -2630,7 +2629,7 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
 
 	mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
 
-	if (WARN_ON_ONCE(local_port >= max_ports))
+	if (WARN_ON_ONCE(!mlxsw_sp_local_port_is_valid(mlxsw_sp, local_port)))
 		return;
 	mlxsw_sp_port = mlxsw_sp->ports[local_port];
 	if (!mlxsw_sp_port) {
-- 
2.34.1

[PATCH AUTOSEL 5.17 026/149] RDMA/rtrs-clt: Do stop and failover outside reconnect work.

[Sasha Levin]

From: Jack Wang <jinpu.wang@ionos.com>

[ Upstream commit c1289d5d8502d62e5bc50ff066c9d6daabfc3264 ]

We can't do instant reconnect, not to DDoS server, but we should stop and
failover earlier, so there is less service interruption.

To avoid deadlock, as error_recovery is called from different callback
like rdma event or hb error handler, add a new err recovery_work.

Link: https://lore.kernel.org/r/20220114154753.983568-6-haris.iqbal@ionos.com
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Aleksei Marov <aleksei.marov@ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/ulp/rtrs/rtrs-clt.c | 40 ++++++++++++++------------
 drivers/infiniband/ulp/rtrs/rtrs-clt.h |  1 +
 2 files changed, 23 insertions(+), 18 deletions(-)

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 759b85f03331..df4d06d4d183 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -297,6 +297,7 @@ static bool rtrs_clt_change_state_from_to(struct rtrs_clt_path *clt_path,
 	return changed;
 }
 
+static void rtrs_clt_stop_and_destroy_conns(struct rtrs_clt_path *clt_path);
 static void rtrs_rdma_error_recovery(struct rtrs_clt_con *con)
 {
 	struct rtrs_clt_path *clt_path = to_clt_path(con->c.path);
@@ -304,16 +305,7 @@ static void rtrs_rdma_error_recovery(struct rtrs_clt_con *con)
 	if (rtrs_clt_change_state_from_to(clt_path,
 					   RTRS_CLT_CONNECTED,
 					   RTRS_CLT_RECONNECTING)) {
-		struct rtrs_clt_sess *clt = clt_path->clt;
-		unsigned int delay_ms;
-
-		/*
-		 * Normal scenario, reconnect if we were successfully connected
-		 */
-		delay_ms = clt->reconnect_delay_sec * 1000;
-		queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork,
-				   msecs_to_jiffies(delay_ms +
-						    prandom_u32() % RTRS_RECONNECT_SEED));
+		queue_work(rtrs_wq, &clt_path->err_recovery_work);
 	} else {
 		/*
 		 * Error can happen just on establishing new connection,
@@ -1511,6 +1503,22 @@ static void rtrs_clt_init_hb(struct rtrs_clt_path *clt_path)
 static void rtrs_clt_reconnect_work(struct work_struct *work);
 static void rtrs_clt_close_work(struct work_struct *work);
 
+static void rtrs_clt_err_recovery_work(struct work_struct *work)
+{
+	struct rtrs_clt_path *clt_path;
+	struct rtrs_clt_sess *clt;
+	int delay_ms;
+
+	clt_path = container_of(work, struct rtrs_clt_path, err_recovery_work);
+	clt = clt_path->clt;
+	delay_ms = clt->reconnect_delay_sec * 1000;
+	rtrs_clt_stop_and_destroy_conns(clt_path);
+	queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork,
+			   msecs_to_jiffies(delay_ms +
+					    prandom_u32() %
+					    RTRS_RECONNECT_SEED));
+}
+
 static struct rtrs_clt_path *alloc_path(struct rtrs_clt_sess *clt,
 					const struct rtrs_addr *path,
 					size_t con_num, u32 nr_poll_queues)
@@ -1562,6 +1570,7 @@ static struct rtrs_clt_path *alloc_path(struct rtrs_clt_sess *clt,
 	clt_path->state = RTRS_CLT_CONNECTING;
 	atomic_set(&clt_path->connected_cnt, 0);
 	INIT_WORK(&clt_path->close_work, rtrs_clt_close_work);
+	INIT_WORK(&clt_path->err_recovery_work, rtrs_clt_err_recovery_work);
 	INIT_DELAYED_WORK(&clt_path->reconnect_dwork, rtrs_clt_reconnect_work);
 	rtrs_clt_init_hb(clt_path);
 
@@ -2326,6 +2335,7 @@ static void rtrs_clt_close_work(struct work_struct *work)
 
 	clt_path = container_of(work, struct rtrs_clt_path, close_work);
 
+	cancel_work_sync(&clt_path->err_recovery_work);
 	cancel_delayed_work_sync(&clt_path->reconnect_dwork);
 	rtrs_clt_stop_and_destroy_conns(clt_path);
 	rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_CLOSED, NULL);
@@ -2638,7 +2648,6 @@ static void rtrs_clt_reconnect_work(struct work_struct *work)
 {
 	struct rtrs_clt_path *clt_path;
 	struct rtrs_clt_sess *clt;
-	unsigned int delay_ms;
 	int err;
 
 	clt_path = container_of(to_delayed_work(work), struct rtrs_clt_path,
@@ -2655,8 +2664,6 @@ static void rtrs_clt_reconnect_work(struct work_struct *work)
 	}
 	clt_path->reconnect_attempts++;
 
-	/* Stop everything */
-	rtrs_clt_stop_and_destroy_conns(clt_path);
 	msleep(RTRS_RECONNECT_BACKOFF);
 	if (rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_CONNECTING, NULL)) {
 		err = init_path(clt_path);
@@ -2669,11 +2676,7 @@ static void rtrs_clt_reconnect_work(struct work_struct *work)
 reconnect_again:
 	if (rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_RECONNECTING, NULL)) {
 		clt_path->stats->reconnects.fail_cnt++;
-		delay_ms = clt->reconnect_delay_sec * 1000;
-		queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork,
-				   msecs_to_jiffies(delay_ms +
-						    prandom_u32() %
-						    RTRS_RECONNECT_SEED));
+		queue_work(rtrs_wq, &clt_path->err_recovery_work);
 	}
 }
 
@@ -2908,6 +2911,7 @@ int rtrs_clt_reconnect_from_sysfs(struct rtrs_clt_path *clt_path)
 						 &old_state);
 	if (changed) {
 		clt_path->reconnect_attempts = 0;
+		rtrs_clt_stop_and_destroy_conns(clt_path);
 		queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork, 0);
 	}
 	if (changed || old_state == RTRS_CLT_RECONNECTING) {
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.h b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
index d1b18a154ae0..f848c0392d98 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.h
@@ -134,6 +134,7 @@ struct rtrs_clt_path {
 	struct rtrs_clt_io_req	*reqs;
 	struct delayed_work	reconnect_dwork;
 	struct work_struct	close_work;
+	struct work_struct	err_recovery_work;
 	unsigned int		reconnect_attempts;
 	bool			established;
 	struct rtrs_rbuf	*rbufs;
-- 
2.34.1

[PATCH AUTOSEL 5.17 027/149] powerpc/xive: Export XIVE IPI information for online-only processors.

[Sasha Levin]

From: Sachin Sant <sachinp@linux.ibm.com>

[ Upstream commit 279d1a72c0f8021520f68ddb0a1346ff9ba1ea8c ]

Cédric pointed out that XIVE IPI information exported via sysfs
(debug/powerpc/xive) display empty lines for processors which are
not online.

Switch to using for_each_online_cpu() so that information is
displayed for online-only processors.

Reported-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Sachin Sant <sachinp@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/164146703333.19039.10920919226094771665.sendpatchset@MacBook-Pro.local
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/sysdev/xive/common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index 1ca5564bda9d..32863b4daf72 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -1791,7 +1791,7 @@ static int xive_ipi_debug_show(struct seq_file *m, void *private)
 	if (xive_ops->debug_show)
 		xive_ops->debug_show(m, private);
 
-	for_each_possible_cpu(cpu)
+	for_each_online_cpu(cpu)
 		xive_debug_show_ipi(m, cpu);
 	return 0;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 028/149] powerpc: dts: t104xrdb: fix phy type for FMAN 4/5

[Sasha Levin]

From: Maxim Kiselev <bigunclemax@gmail.com>

[ Upstream commit 17846485dff91acce1ad47b508b633dffc32e838 ]

T1040RDB has two RTL8211E-VB phys which requires setting
of internal delays for correct work.

Changing the phy-connection-type property to `rgmii-id`
will fix this issue.

Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Maxim Kochetkov <fido_max@inbox.ru>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211230151123.1258321-1-bigunclemax@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/boot/dts/fsl/t104xrdb.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi
index 099a598c74c0..bfe1ed5be337 100644
--- a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi
@@ -139,12 +139,12 @@ pca9546@77 {
 		fman@400000 {
 			ethernet@e6000 {
 				phy-handle = <&phy_rgmii_0>;
-				phy-connection-type = "rgmii";
+				phy-connection-type = "rgmii-id";
 			};
 
 			ethernet@e8000 {
 				phy-handle = <&phy_rgmii_1>;
-				phy-connection-type = "rgmii";
+				phy-connection-type = "rgmii-id";
 			};
 
 			mdio0: mdio@fc000 {
-- 
2.34.1

[PATCH AUTOSEL 5.17 029/149] ath11k: fix kernel panic during unload/load ath11k modules

[Sasha Levin]

From: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>

[ Upstream commit 22b59cb965f79ee1accf83172441c9ca0ecb632a ]

Call netif_napi_del() from ath11k_ahb_free_ext_irq() to fix
the following kernel panic when unload/load ath11k modules
for few iterations.

[  971.201365] Unable to handle kernel paging request at virtual address 6d97a208
[  971.204227] pgd = 594c2919
[  971.211478] [6d97a208] *pgd=00000000
[  971.214120] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[  971.412024] CPU: 2 PID: 4435 Comm: insmod Not tainted 5.4.89 #0
[  971.434256] Hardware name: Generic DT based system
[  971.440165] PC is at napi_by_id+0x10/0x40
[  971.445019] LR is at netif_napi_add+0x160/0x1dc

[  971.743127] (napi_by_id) from [<807d89a0>] (netif_napi_add+0x160/0x1dc)
[  971.751295] (netif_napi_add) from [<7f1209ac>] (ath11k_ahb_config_irq+0xf8/0x414 [ath11k_ahb])
[  971.759164] (ath11k_ahb_config_irq [ath11k_ahb]) from [<7f12135c>] (ath11k_ahb_probe+0x40c/0x51c [ath11k_ahb])
[  971.768567] (ath11k_ahb_probe [ath11k_ahb]) from [<80666864>] (platform_drv_probe+0x48/0x94)
[  971.779670] (platform_drv_probe) from [<80664718>] (really_probe+0x1c8/0x450)
[  971.789389] (really_probe) from [<80664cc4>] (driver_probe_device+0x15c/0x1b8)
[  971.797547] (driver_probe_device) from [<80664f60>] (device_driver_attach+0x44/0x60)
[  971.805795] (device_driver_attach) from [<806650a0>] (__driver_attach+0x124/0x140)
[  971.814822] (__driver_attach) from [<80662adc>] (bus_for_each_dev+0x58/0xa4)
[  971.823328] (bus_for_each_dev) from [<80663a2c>] (bus_add_driver+0xf0/0x1e8)
[  971.831662] (bus_add_driver) from [<806658a4>] (driver_register+0xa8/0xf0)
[  971.839822] (driver_register) from [<8030269c>] (do_one_initcall+0x78/0x1ac)
[  971.847638] (do_one_initcall) from [<80392524>] (do_init_module+0x54/0x200)
[  971.855968] (do_init_module) from [<803945b0>] (load_module+0x1e30/0x1ffc)
[  971.864126] (load_module) from [<803948b0>] (sys_init_module+0x134/0x17c)
[  971.871852] (sys_init_module) from [<80301000>] (ret_fast_syscall+0x0/0x50)

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.6.0.1-00760-QCAHKSWPL_SILICONZ-1

Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1642583973-21599-1-git-send-email-quic_vnaralas@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/ahb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c
index 3fb0aa000825..24bd0520926b 100644
--- a/drivers/net/wireless/ath/ath11k/ahb.c
+++ b/drivers/net/wireless/ath/ath11k/ahb.c
@@ -391,6 +391,8 @@ static void ath11k_ahb_free_ext_irq(struct ath11k_base *ab)
 
 		for (j = 0; j < irq_grp->num_irq; j++)
 			free_irq(ab->irq_num[irq_grp->irqs[j]], irq_grp);
+
+		netif_napi_del(&irq_grp->napi);
 	}
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 030/149] ath11k: pci: fix crash on suspend if board file is not found

[Sasha Levin]

From: Kalle Valo <quic_kvalo@quicinc.com>

[ Upstream commit b4f4c56459a5c744f7f066b9fc2b54ea995030c5 ]

Mario reported that the kernel was crashing on suspend if ath11k was not able
to find a board file:

[  473.693286] PM: Suspending system (s2idle)
[  473.693291] printk: Suspending console(s) (use no_console_suspend to debug)
[  474.407787] BUG: unable to handle page fault for address: 0000000000002070
[  474.407791] #PF: supervisor read access in kernel mode
[  474.407794] #PF: error_code(0x0000) - not-present page
[  474.407798] PGD 0 P4D 0
[  474.407801] Oops: 0000 [#1] PREEMPT SMP NOPTI
[  474.407805] CPU: 2 PID: 2350 Comm: kworker/u32:14 Tainted: G        W         5.16.0 #248
[...]
[  474.407868] Call Trace:
[  474.407870]  <TASK>
[  474.407874]  ? _raw_spin_lock_irqsave+0x2a/0x60
[  474.407882]  ? lock_timer_base+0x72/0xa0
[  474.407889]  ? _raw_spin_unlock_irqrestore+0x29/0x3d
[  474.407892]  ? try_to_del_timer_sync+0x54/0x80
[  474.407896]  ath11k_dp_rx_pktlog_stop+0x49/0xc0 [ath11k]
[  474.407912]  ath11k_core_suspend+0x34/0x130 [ath11k]
[  474.407923]  ath11k_pci_pm_suspend+0x1b/0x50 [ath11k_pci]
[  474.407928]  pci_pm_suspend+0x7e/0x170
[  474.407935]  ? pci_pm_freeze+0xc0/0xc0
[  474.407939]  dpm_run_callback+0x4e/0x150
[  474.407947]  __device_suspend+0x148/0x4c0
[  474.407951]  async_suspend+0x20/0x90
dmesg-efi-164255130401001:
Oops#1 Part1
[  474.407955]  async_run_entry_fn+0x33/0x120
[  474.407959]  process_one_work+0x220/0x3f0
[  474.407966]  worker_thread+0x4a/0x3d0
[  474.407971]  kthread+0x17a/0x1a0
[  474.407975]  ? process_one_work+0x3f0/0x3f0
[  474.407979]  ? set_kthread_struct+0x40/0x40
[  474.407983]  ret_from_fork+0x22/0x30
[  474.407991]  </TASK>

The issue here is that board file loading happens after ath11k_pci_probe()
succesfully returns (ath11k initialisation happends asynchronously) and the
suspend handler is still enabled, of course failing as ath11k is not properly
initialised. Fix this by checking ATH11K_FLAG_QMI_FAIL during both suspend and
resume.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Reported-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215504
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220127090117.2024-1-kvalo@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/pci.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c
index de71ad594f34..903758751c99 100644
--- a/drivers/net/wireless/ath/ath11k/pci.c
+++ b/drivers/net/wireless/ath/ath11k/pci.c
@@ -1571,6 +1571,11 @@ static __maybe_unused int ath11k_pci_pm_suspend(struct device *dev)
 	struct ath11k_base *ab = dev_get_drvdata(dev);
 	int ret;
 
+	if (test_bit(ATH11K_FLAG_QMI_FAIL, &ab->dev_flags)) {
+		ath11k_dbg(ab, ATH11K_DBG_BOOT, "boot skipping pci suspend as qmi is not initialised\n");
+		return 0;
+	}
+
 	ret = ath11k_core_suspend(ab);
 	if (ret)
 		ath11k_warn(ab, "failed to suspend core: %d\n", ret);
@@ -1583,6 +1588,11 @@ static __maybe_unused int ath11k_pci_pm_resume(struct device *dev)
 	struct ath11k_base *ab = dev_get_drvdata(dev);
 	int ret;
 
+	if (test_bit(ATH11K_FLAG_QMI_FAIL, &ab->dev_flags)) {
+		ath11k_dbg(ab, ATH11K_DBG_BOOT, "boot skipping pci resume as qmi is not initialised\n");
+		return 0;
+	}
+
 	ret = ath11k_core_resume(ab);
 	if (ret)
 		ath11k_warn(ab, "failed to resume core: %d\n", ret);
-- 
2.34.1

[PATCH AUTOSEL 5.17 031/149] ath11k: mhi: use mhi_sync_power_up()

[Sasha Levin]

From: Kalle Valo <quic_kvalo@quicinc.com>

[ Upstream commit 3df6d74aedfdca919cca475d15dfdbc8b05c9e5d ]

If amss.bin was missing ath11k would crash during 'rmmod ath11k_pci'. The
reason for that was that we were using mhi_async_power_up() which does not
check any errors. But mhi_sync_power_up() on the other hand does check for
errors so let's use that to fix the crash.

I was not able to find a reason why an async version was used.
ath11k_mhi_start() (which enables state ATH11K_MHI_POWER_ON) is called from
ath11k_hif_power_up(), which can sleep. So sync version should be safe to use
here.

[  145.569731] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN PTI
[  145.569789] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[  145.569843] CPU: 2 PID: 1628 Comm: rmmod Kdump: loaded Tainted: G        W         5.16.0-wt-ath+ #567
[  145.569898] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021
[  145.569956] RIP: 0010:ath11k_hal_srng_access_begin+0xb5/0x2b0 [ath11k]
[  145.570028] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ec 01 00 00 48 8b ab a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 <0f> b6 14 02 48 89 e8 83 e0 07 83 c0 03 45 85 ed 75 48 38 d0 7c 08
[  145.570089] RSP: 0018:ffffc900025d7ac0 EFLAGS: 00010246
[  145.570144] RAX: dffffc0000000000 RBX: ffff88814fca2dd8 RCX: 1ffffffff50cb455
[  145.570196] RDX: 0000000000000000 RSI: ffff88814fca2dd8 RDI: ffff88814fca2e80
[  145.570252] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffffa8659497
[  145.570329] R10: fffffbfff50cb292 R11: 0000000000000001 R12: ffff88814fca0000
[  145.570410] R13: 0000000000000000 R14: ffff88814fca2798 R15: ffff88814fca2dd8
[  145.570465] FS:  00007fa399988540(0000) GS:ffff888233e00000(0000) knlGS:0000000000000000
[  145.570519] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  145.570571] CR2: 00007fa399b51421 CR3: 0000000137898002 CR4: 00000000003706e0
[  145.570623] Call Trace:
[  145.570675]  <TASK>
[  145.570727]  ? ath11k_ce_tx_process_cb+0x34b/0x860 [ath11k]
[  145.570797]  ath11k_ce_tx_process_cb+0x356/0x860 [ath11k]
[  145.570864]  ? tasklet_init+0x150/0x150
[  145.570919]  ? ath11k_ce_alloc_pipes+0x280/0x280 [ath11k]
[  145.570986]  ? tasklet_clear_sched+0x42/0xe0
[  145.571042]  ? tasklet_kill+0xe9/0x1b0
[  145.571095]  ? tasklet_clear_sched+0xe0/0xe0
[  145.571148]  ? irq_has_action+0x120/0x120
[  145.571202]  ath11k_ce_cleanup_pipes+0x45a/0x580 [ath11k]
[  145.571270]  ? ath11k_pci_stop+0x10e/0x170 [ath11k_pci]
[  145.571345]  ath11k_core_stop+0x8a/0xc0 [ath11k]
[  145.571434]  ath11k_core_deinit+0x9e/0x150 [ath11k]
[  145.571499]  ath11k_pci_remove+0xd2/0x260 [ath11k_pci]
[  145.571553]  pci_device_remove+0x9a/0x1c0
[  145.571605]  __device_release_driver+0x332/0x660
[  145.571659]  driver_detach+0x1e7/0x2c0
[  145.571712]  bus_remove_driver+0xe2/0x2d0
[  145.571772]  pci_unregister_driver+0x21/0x250
[  145.571826]  __do_sys_delete_module+0x30a/0x4b0
[  145.571879]  ? free_module+0xac0/0xac0
[  145.571933]  ? lockdep_hardirqs_on_prepare.part.0+0x18c/0x370
[  145.571986]  ? syscall_enter_from_user_mode+0x1d/0x50
[  145.572039]  ? lockdep_hardirqs_on+0x79/0x100
[  145.572097]  do_syscall_64+0x3b/0x90
[  145.572153]  entry_SYSCALL_64_after_hwframe+0x44/0xae

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220127090117.2024-2-kvalo@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/mhi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c
index e4250ba8dfee..f4400b25c5cf 100644
--- a/drivers/net/wireless/ath/ath11k/mhi.c
+++ b/drivers/net/wireless/ath/ath11k/mhi.c
@@ -560,7 +560,7 @@ static int ath11k_mhi_set_state(struct ath11k_pci *ab_pci,
 		ret = 0;
 		break;
 	case ATH11K_MHI_POWER_ON:
-		ret = mhi_async_power_up(ab_pci->mhi_ctrl);
+		ret = mhi_sync_power_up(ab_pci->mhi_ctrl);
 		break;
 	case ATH11K_MHI_POWER_OFF:
 		mhi_power_down(ab_pci->mhi_ctrl, true);
-- 
2.34.1

[PATCH AUTOSEL 5.17 032/149] net/smc: Send directly when TCP_CORK is cleared

[Sasha Levin]

From: Tony Lu <tonylu@linux.alibaba.com>

[ Upstream commit ea785a1a573b390a150010b3c5b81e1ccd8c98a8 ]

According to the man page of TCP_CORK [1], if set, don't send out
partial frames. All queued partial frames are sent when option is
cleared again.

When applications call setsockopt to disable TCP_CORK, this call is
protected by lock_sock(), and tries to mod_delayed_work() to 0, in order
to send pending data right now. However, the delayed work smc_tx_work is
also protected by lock_sock(). There introduces lock contention for
sending data.

To fix it, send pending data directly which acts like TCP, without
lock_sock() protected in the context of setsockopt (already lock_sock()ed),
and cancel unnecessary dealyed work, which is protected by lock.

[1] https://linux.die.net/man/7/tcp

Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/af_smc.c |  4 ++--
 net/smc/smc_tx.c | 25 +++++++++++++++----------
 net/smc/smc_tx.h |  1 +
 3 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 284befa90967..67fc72047c9c 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -2636,8 +2636,8 @@ static int smc_setsockopt(struct socket *sock, int level, int optname,
 		    sk->sk_state != SMC_CLOSED) {
 			if (!val) {
 				SMC_STAT_INC(smc, cork_cnt);
-				mod_delayed_work(smc->conn.lgr->tx_wq,
-						 &smc->conn.tx_work, 0);
+				smc_tx_pending(&smc->conn);
+				cancel_delayed_work(&smc->conn.tx_work);
 			}
 		}
 		break;
diff --git a/net/smc/smc_tx.c b/net/smc/smc_tx.c
index be241d53020f..7b0b6e24582f 100644
--- a/net/smc/smc_tx.c
+++ b/net/smc/smc_tx.c
@@ -597,27 +597,32 @@ int smc_tx_sndbuf_nonempty(struct smc_connection *conn)
 	return rc;
 }
 
-/* Wakeup sndbuf consumers from process context
- * since there is more data to transmit
- */
-void smc_tx_work(struct work_struct *work)
+void smc_tx_pending(struct smc_connection *conn)
 {
-	struct smc_connection *conn = container_of(to_delayed_work(work),
-						   struct smc_connection,
-						   tx_work);
 	struct smc_sock *smc = container_of(conn, struct smc_sock, conn);
 	int rc;
 
-	lock_sock(&smc->sk);
 	if (smc->sk.sk_err)
-		goto out;
+		return;
 
 	rc = smc_tx_sndbuf_nonempty(conn);
 	if (!rc && conn->local_rx_ctrl.prod_flags.write_blocked &&
 	    !atomic_read(&conn->bytes_to_rcv))
 		conn->local_rx_ctrl.prod_flags.write_blocked = 0;
+}
+
+/* Wakeup sndbuf consumers from process context
+ * since there is more data to transmit
+ */
+void smc_tx_work(struct work_struct *work)
+{
+	struct smc_connection *conn = container_of(to_delayed_work(work),
+						   struct smc_connection,
+						   tx_work);
+	struct smc_sock *smc = container_of(conn, struct smc_sock, conn);
 
-out:
+	lock_sock(&smc->sk);
+	smc_tx_pending(conn);
 	release_sock(&smc->sk);
 }
 
diff --git a/net/smc/smc_tx.h b/net/smc/smc_tx.h
index 07e6ad76224a..a59f370b8b43 100644
--- a/net/smc/smc_tx.h
+++ b/net/smc/smc_tx.h
@@ -27,6 +27,7 @@ static inline int smc_tx_prepared_sends(struct smc_connection *conn)
 	return smc_curs_diff(conn->sndbuf_desc->len, &sent, &prep);
 }
 
+void smc_tx_pending(struct smc_connection *conn);
 void smc_tx_work(struct work_struct *work);
 void smc_tx_init(struct smc_sock *smc);
 int smc_tx_sendmsg(struct smc_sock *smc, struct msghdr *msg, size_t len);
-- 
2.34.1

[PATCH AUTOSEL 5.17 033/149] drm/bridge: Add missing pm_runtime_put_sync

[Sasha Levin]

From: Yongzhi Liu <lyz_cs@pku.edu.cn>

[ Upstream commit 46f47807738441e354873546dde0b000106c068a ]

pm_runtime_get_sync() will increase the rumtime PM counter
even when it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error. Besides, a matching decrement is needed
on the error handling path to keep the counter balanced.

Signed-off-by: Yongzhi Liu <lyz_cs@pku.edu.cn>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1643008835-73961-1-git-send-email-lyz_cs@pku.edu.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/bridge/nwl-dsi.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/bridge/nwl-dsi.c b/drivers/gpu/drm/bridge/nwl-dsi.c
index af07eeb47ca0..1529b9e3d576 100644
--- a/drivers/gpu/drm/bridge/nwl-dsi.c
+++ b/drivers/gpu/drm/bridge/nwl-dsi.c
@@ -861,18 +861,19 @@ nwl_dsi_bridge_mode_set(struct drm_bridge *bridge,
 	memcpy(&dsi->mode, adjusted_mode, sizeof(dsi->mode));
 	drm_mode_debug_printmodeline(adjusted_mode);
 
-	pm_runtime_get_sync(dev);
+	if (pm_runtime_resume_and_get(dev) < 0)
+		return;
 
 	if (clk_prepare_enable(dsi->lcdif_clk) < 0)
-		return;
+		goto runtime_put;
 	if (clk_prepare_enable(dsi->core_clk) < 0)
-		return;
+		goto runtime_put;
 
 	/* Step 1 from DSI reset-out instructions */
 	ret = reset_control_deassert(dsi->rst_pclk);
 	if (ret < 0) {
 		DRM_DEV_ERROR(dev, "Failed to deassert PCLK: %d\n", ret);
-		return;
+		goto runtime_put;
 	}
 
 	/* Step 2 from DSI reset-out instructions */
@@ -882,13 +883,18 @@ nwl_dsi_bridge_mode_set(struct drm_bridge *bridge,
 	ret = reset_control_deassert(dsi->rst_esc);
 	if (ret < 0) {
 		DRM_DEV_ERROR(dev, "Failed to deassert ESC: %d\n", ret);
-		return;
+		goto runtime_put;
 	}
 	ret = reset_control_deassert(dsi->rst_byte);
 	if (ret < 0) {
 		DRM_DEV_ERROR(dev, "Failed to deassert BYTE: %d\n", ret);
-		return;
+		goto runtime_put;
 	}
+
+	return;
+
+runtime_put:
+	pm_runtime_put_sync(dev);
 }
 
 static void
-- 
2.34.1

[PATCH AUTOSEL 5.17 034/149] bpf: Make dst_port field in struct bpf_sock 16-bit wide

[Sasha Levin]

From: Jakub Sitnicki <jakub@cloudflare.com>

[ Upstream commit 4421a582718ab81608d8486734c18083b822390d ]

Menglong Dong reports that the documentation for the dst_port field in
struct bpf_sock is inaccurate and confusing. From the BPF program PoV, the
field is a zero-padded 16-bit integer in network byte order. The value
appears to the BPF user as if laid out in memory as so:

  offsetof(struct bpf_sock, dst_port) + 0  <port MSB>
                                      + 8  <port LSB>
                                      +16  0x00
                                      +24  0x00

32-, 16-, and 8-bit wide loads from the field are all allowed, but only if
the offset into the field is 0.

32-bit wide loads from dst_port are especially confusing. The loaded value,
after converting to host byte order with bpf_ntohl(dst_port), contains the
port number in the upper 16-bits.

Remove the confusion by splitting the field into two 16-bit fields. For
backward compatibility, allow 32-bit wide loads from offsetof(struct
bpf_sock, dst_port).

While at it, allow loads 8-bit loads at offset [0] and [1] from dst_port.

Reported-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/r/20220130115518.213259-2-jakub@cloudflare.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/uapi/linux/bpf.h |  3 ++-
 net/core/filter.c        | 10 +++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index b0383d371b9a..1275b08e9deb 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -5500,7 +5500,8 @@ struct bpf_sock {
 	__u32 src_ip4;
 	__u32 src_ip6[4];
 	__u32 src_port;		/* host byte order */
-	__u32 dst_port;		/* network byte order */
+	__be16 dst_port;	/* network byte order */
+	__u16 :16;		/* zero padding */
 	__u32 dst_ip4;
 	__u32 dst_ip6[4];
 	__u32 state;
diff --git a/net/core/filter.c b/net/core/filter.c
index 9eb785842258..82fcb7533663 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -8033,6 +8033,7 @@ bool bpf_sock_is_valid_access(int off, int size, enum bpf_access_type type,
 			      struct bpf_insn_access_aux *info)
 {
 	const int size_default = sizeof(__u32);
+	int field_size;
 
 	if (off < 0 || off >= sizeof(struct bpf_sock))
 		return false;
@@ -8044,7 +8045,6 @@ bool bpf_sock_is_valid_access(int off, int size, enum bpf_access_type type,
 	case offsetof(struct bpf_sock, family):
 	case offsetof(struct bpf_sock, type):
 	case offsetof(struct bpf_sock, protocol):
-	case offsetof(struct bpf_sock, dst_port):
 	case offsetof(struct bpf_sock, src_port):
 	case offsetof(struct bpf_sock, rx_queue_mapping):
 	case bpf_ctx_range(struct bpf_sock, src_ip4):
@@ -8053,6 +8053,14 @@ bool bpf_sock_is_valid_access(int off, int size, enum bpf_access_type type,
 	case bpf_ctx_range_till(struct bpf_sock, dst_ip6[0], dst_ip6[3]):
 		bpf_ctx_record_field_size(info, size_default);
 		return bpf_ctx_narrow_access_ok(off, size, size_default);
+	case bpf_ctx_range(struct bpf_sock, dst_port):
+		field_size = size == size_default ?
+			size_default : sizeof_field(struct bpf_sock, dst_port);
+		bpf_ctx_record_field_size(info, field_size);
+		return bpf_ctx_narrow_access_ok(off, size, field_size);
+	case offsetofend(struct bpf_sock, dst_port) ...
+	     offsetof(struct bpf_sock, dst_ip4) - 1:
+		return false;
 	}
 
 	return size == size_default;
-- 
2.34.1

[PATCH AUTOSEL 5.17 035/149] scsi: mvsas: Replace snprintf() with sysfs_emit()

[Sasha Levin]

From: Yang Guang <yang.guang5@zte.com.cn>

[ Upstream commit 0ad3867b0f13e45cfee5a1298bfd40eef096116c ]

coccinelle report:
./drivers/scsi/mvsas/mv_init.c:699:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/mvsas/mv_init.c:747:8-16:
WARNING: use scnprintf or sprintf

Use sysfs_emit() instead of scnprintf() or sprintf().

Link: https://lore.kernel.org/r/c1711f7cf251730a8ceb5bdfc313bf85662b3395.1643182948.git.yang.guang5@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mvsas/mv_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index dcae2d4464f9..44df7c03aab8 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -696,7 +696,7 @@ static struct pci_driver mvs_pci_driver = {
 static ssize_t driver_version_show(struct device *cdev,
 				   struct device_attribute *attr, char *buffer)
 {
-	return snprintf(buffer, PAGE_SIZE, "%s\n", DRV_VERSION);
+	return sysfs_emit(buffer, "%s\n", DRV_VERSION);
 }
 
 static DEVICE_ATTR_RO(driver_version);
@@ -744,7 +744,7 @@ static ssize_t interrupt_coalescing_store(struct device *cdev,
 static ssize_t interrupt_coalescing_show(struct device *cdev,
 					 struct device_attribute *attr, char *buffer)
 {
-	return snprintf(buffer, PAGE_SIZE, "%d\n", interrupt_coalescing);
+	return sysfs_emit(buffer, "%d\n", interrupt_coalescing);
 }
 
 static DEVICE_ATTR_RW(interrupt_coalescing);
-- 
2.34.1

[PATCH AUTOSEL 5.17 036/149] scsi: bfa: Replace snprintf() with sysfs_emit()

[Sasha Levin]

From: Yang Guang <yang.guang5@zte.com.cn>

[ Upstream commit 2245ea91fd3a04cafbe2f54911432a8657528c3b ]

coccinelle report:
./drivers/scsi/bfa/bfad_attr.c:908:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:860:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:888:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:853:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:808:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:728:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:822:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:927:9-17:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:900:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:874:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:714:8-16:
WARNING: use scnprintf or sprintf
./drivers/scsi/bfa/bfad_attr.c:839:8-16:
WARNING: use scnprintf or sprintf

Use sysfs_emit() instead of scnprintf() or sprintf().

Link: https://lore.kernel.org/r/def83ff75faec64ba592b867a8499b1367bae303.1643181468.git.yang.guang5@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/bfa/bfad_attr.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index f46989bd083c..5a85401e9e2d 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -711,7 +711,7 @@ bfad_im_serial_num_show(struct device *dev, struct device_attribute *attr,
 	char serial_num[BFA_ADAPTER_SERIAL_NUM_LEN];
 
 	bfa_get_adapter_serial_num(&bfad->bfa, serial_num);
-	return snprintf(buf, PAGE_SIZE, "%s\n", serial_num);
+	return sysfs_emit(buf, "%s\n", serial_num);
 }
 
 static ssize_t
@@ -725,7 +725,7 @@ bfad_im_model_show(struct device *dev, struct device_attribute *attr,
 	char model[BFA_ADAPTER_MODEL_NAME_LEN];
 
 	bfa_get_adapter_model(&bfad->bfa, model);
-	return snprintf(buf, PAGE_SIZE, "%s\n", model);
+	return sysfs_emit(buf, "%s\n", model);
 }
 
 static ssize_t
@@ -805,7 +805,7 @@ bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
 			"Invalid Model");
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", model_descr);
+	return sysfs_emit(buf, "%s\n", model_descr);
 }
 
 static ssize_t
@@ -819,7 +819,7 @@ bfad_im_node_name_show(struct device *dev, struct device_attribute *attr,
 	u64        nwwn;
 
 	nwwn = bfa_fcs_lport_get_nwwn(port->fcs_port);
-	return snprintf(buf, PAGE_SIZE, "0x%llx\n", cpu_to_be64(nwwn));
+	return sysfs_emit(buf, "0x%llx\n", cpu_to_be64(nwwn));
 }
 
 static ssize_t
@@ -836,7 +836,7 @@ bfad_im_symbolic_name_show(struct device *dev, struct device_attribute *attr,
 	bfa_fcs_lport_get_attr(&bfad->bfa_fcs.fabric.bport, &port_attr);
 	strlcpy(symname, port_attr.port_cfg.sym_name.symname,
 			BFA_SYMNAME_MAXLEN);
-	return snprintf(buf, PAGE_SIZE, "%s\n", symname);
+	return sysfs_emit(buf, "%s\n", symname);
 }
 
 static ssize_t
@@ -850,14 +850,14 @@ bfad_im_hw_version_show(struct device *dev, struct device_attribute *attr,
 	char hw_ver[BFA_VERSION_LEN];
 
 	bfa_get_pci_chip_rev(&bfad->bfa, hw_ver);
-	return snprintf(buf, PAGE_SIZE, "%s\n", hw_ver);
+	return sysfs_emit(buf, "%s\n", hw_ver);
 }
 
 static ssize_t
 bfad_im_drv_version_show(struct device *dev, struct device_attribute *attr,
 				char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_VERSION);
+	return sysfs_emit(buf, "%s\n", BFAD_DRIVER_VERSION);
 }
 
 static ssize_t
@@ -871,7 +871,7 @@ bfad_im_optionrom_version_show(struct device *dev,
 	char optrom_ver[BFA_VERSION_LEN];
 
 	bfa_get_adapter_optrom_ver(&bfad->bfa, optrom_ver);
-	return snprintf(buf, PAGE_SIZE, "%s\n", optrom_ver);
+	return sysfs_emit(buf, "%s\n", optrom_ver);
 }
 
 static ssize_t
@@ -885,7 +885,7 @@ bfad_im_fw_version_show(struct device *dev, struct device_attribute *attr,
 	char fw_ver[BFA_VERSION_LEN];
 
 	bfa_get_adapter_fw_ver(&bfad->bfa, fw_ver);
-	return snprintf(buf, PAGE_SIZE, "%s\n", fw_ver);
+	return sysfs_emit(buf, "%s\n", fw_ver);
 }
 
 static ssize_t
@@ -897,7 +897,7 @@ bfad_im_num_of_ports_show(struct device *dev, struct device_attribute *attr,
 			(struct bfad_im_port_s *) shost->hostdata[0];
 	struct bfad_s *bfad = im_port->bfad;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",
+	return sysfs_emit(buf, "%d\n",
 			bfa_get_nports(&bfad->bfa));
 }
 
@@ -905,7 +905,7 @@ static ssize_t
 bfad_im_drv_name_show(struct device *dev, struct device_attribute *attr,
 				char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_NAME);
+	return sysfs_emit(buf, "%s\n", BFAD_DRIVER_NAME);
 }
 
 static ssize_t
@@ -924,14 +924,14 @@ bfad_im_num_of_discovered_ports_show(struct device *dev,
 	rports = kcalloc(nrports, sizeof(struct bfa_rport_qualifier_s),
 			 GFP_ATOMIC);
 	if (rports == NULL)
-		return snprintf(buf, PAGE_SIZE, "Failed\n");
+		return sysfs_emit(buf, "Failed\n");
 
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 	bfa_fcs_lport_get_rport_quals(port->fcs_port, rports, &nrports);
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 	kfree(rports);
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", nrports);
+	return sysfs_emit(buf, "%d\n", nrports);
 }
 
 static          DEVICE_ATTR(serial_number, S_IRUGO,
-- 
2.34.1

[PATCH AUTOSEL 5.17 037/149] drm/v3d: fix missing unlock

[Sasha Levin]

From: Yongzhi Liu <lyz_cs@pku.edu.cn>

[ Upstream commit e57c1a3bd5e8e0c7181f65ae55581f0236a8f284 ]

[why]
Unlock is needed on the error handling path to prevent dead lock.
v3d_submit_cl_ioctl and v3d_submit_csd_ioctl is missing unlock.

[how]
Fix this by changing goto target on the error handling path. So
changing the goto to target an error handling path
that includes drm_gem_unlock reservations.

Signed-off-by: Yongzhi Liu <lyz_cs@pku.edu.cn>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1643377262-109975-1-git-send-email-lyz_cs@pku.edu.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/v3d/v3d_gem.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index c7ed2e1cbab6..92bc0faee84f 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -798,7 +798,7 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
 
 		if (!render->base.perfmon) {
 			ret = -ENOENT;
-			goto fail;
+			goto fail_perfmon;
 		}
 	}
 
@@ -847,6 +847,7 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
 
 fail_unreserve:
 	mutex_unlock(&v3d->sched_lock);
+fail_perfmon:
 	drm_gem_unlock_reservations(last_job->bo,
 				    last_job->bo_count, &acquire_ctx);
 fail:
@@ -1027,7 +1028,7 @@ v3d_submit_csd_ioctl(struct drm_device *dev, void *data,
 						     args->perfmon_id);
 		if (!job->base.perfmon) {
 			ret = -ENOENT;
-			goto fail;
+			goto fail_perfmon;
 		}
 	}
 
@@ -1056,6 +1057,7 @@ v3d_submit_csd_ioctl(struct drm_device *dev, void *data,
 
 fail_unreserve:
 	mutex_unlock(&v3d->sched_lock);
+fail_perfmon:
 	drm_gem_unlock_reservations(clean_job->bo, clean_job->bo_count,
 				    &acquire_ctx);
 fail:
-- 
2.34.1

[PATCH AUTOSEL 5.17 038/149] power: supply: axp20x_battery: properly report current when discharging

[Sasha Levin]

From: Evgeny Boger <boger@wirenboard.com>

[ Upstream commit d4f408cdcd26921c1268cb8dcbe8ffb6faf837f3 ]

As stated in [1], negative current values are used for discharging
batteries.

AXP PMICs internally have two different ADC channels for shunt current
measurement: one used during charging and one during discharging.
The values reported by these ADCs are unsigned.
While the driver properly selects ADC channel to get the data from,
it doesn't apply negative sign when reporting discharging current.

[1] Documentation/ABI/testing/sysfs-class-power

Signed-off-by: Evgeny Boger <boger@wirenboard.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/axp20x_battery.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c
index 5d197141f476..9106077c0dbb 100644
--- a/drivers/power/supply/axp20x_battery.c
+++ b/drivers/power/supply/axp20x_battery.c
@@ -186,7 +186,6 @@ static int axp20x_battery_get_prop(struct power_supply *psy,
 				   union power_supply_propval *val)
 {
 	struct axp20x_batt_ps *axp20x_batt = power_supply_get_drvdata(psy);
-	struct iio_channel *chan;
 	int ret = 0, reg, val1;
 
 	switch (psp) {
@@ -266,12 +265,12 @@ static int axp20x_battery_get_prop(struct power_supply *psy,
 		if (ret)
 			return ret;
 
-		if (reg & AXP20X_PWR_STATUS_BAT_CHARGING)
-			chan = axp20x_batt->batt_chrg_i;
-		else
-			chan = axp20x_batt->batt_dischrg_i;
-
-		ret = iio_read_channel_processed(chan, &val->intval);
+		if (reg & AXP20X_PWR_STATUS_BAT_CHARGING) {
+			ret = iio_read_channel_processed(axp20x_batt->batt_chrg_i, &val->intval);
+		} else {
+			ret = iio_read_channel_processed(axp20x_batt->batt_dischrg_i, &val1);
+			val->intval = -val1;
+		}
 		if (ret)
 			return ret;
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 039/149] mt76: mt7921: fix crash when startup fails.

[Sasha Levin]

From: Ben Greear <greearb@candelatech.com>

[ Upstream commit 827e7799c61b978fbc2cc9dac66cb62401b2b3f0 ]

If the nic fails to start, it is possible that the
reset_work has already been scheduled.  Ensure the
work item is canceled so we do not have use-after-free
crash in case cleanup is called before the work item
is executed.

This fixes crash on my x86_64 apu2 when mt7921k radio
fails to work.  Radio still fails, but OS does not
crash.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7921/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 7a8d2596c226..4abb7a6e775a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -273,6 +273,7 @@ static void mt7921_stop(struct ieee80211_hw *hw)
 
 	cancel_delayed_work_sync(&dev->pm.ps_work);
 	cancel_work_sync(&dev->pm.wake_work);
+	cancel_work_sync(&dev->reset_work);
 	mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
 
 	mt7921_mutex_acquire(dev);
-- 
2.34.1

[PATCH AUTOSEL 5.17 040/149] mt76: dma: initialize skip_unmap in mt76_dma_rx_fill

[Sasha Levin]

From: Lorenzo Bianconi <lorenzo@kernel.org>

[ Upstream commit 577298ec55dfc8b9aece54520f0258c3f93a6573 ]

Even if it is only a false-positive since skip_buf0/skip_buf1 are only
used in mt76_dma_tx_cleanup_idx routine, initialize skip_unmap in
mt76_dma_rx_fill in order to fix the following UBSAN report:

[   13.924906] UBSAN: invalid-load in linux-5.15.0/drivers/net/wireless/mediatek/mt76/dma.c:162:13
[   13.924909] load of value 225 is not a valid value for type '_Bool'
[   13.924912] CPU: 9 PID: 672 Comm: systemd-udevd Not tainted 5.15.0-18-generic #18-Ubuntu
[   13.924914] Hardware name: LENOVO 21A0000CMX/21A0000CMX, BIOS R1MET43W (1.13 ) 11/05/2021
[   13.924915] Call Trace:
[   13.924917]  <TASK>
[   13.924920]  show_stack+0x52/0x58
[   13.924925]  dump_stack_lvl+0x4a/0x5f
[   13.924931]  dump_stack+0x10/0x12
[   13.924932]  ubsan_epilogue+0x9/0x45
[   13.924934]  __ubsan_handle_load_invalid_value.cold+0x44/0x49
[   13.924935]  ? __iommu_dma_map+0x84/0xf0
[   13.924939]  mt76_dma_add_buf.constprop.0.cold+0x23/0x85 [mt76]
[   13.924949]  mt76_dma_rx_fill.isra.0+0x102/0x1f0 [mt76]
[   13.924954]  mt76_dma_init+0xc9/0x150 [mt76]
[   13.924959]  ? mt7921_dma_enable+0x110/0x110 [mt7921e]
[   13.924966]  mt7921_dma_init+0x1e3/0x260 [mt7921e]
[   13.924970]  mt7921_register_device+0x29d/0x510 [mt7921e]
[   13.924975]  mt7921_pci_probe.part.0+0x17f/0x1b0 [mt7921e]
[   13.924980]  mt7921_pci_probe+0x43/0x60 [mt7921e]
[   13.924984]  local_pci_probe+0x4b/0x90
[   13.924987]  pci_device_probe+0x115/0x1f0
[   13.924989]  really_probe+0x21e/0x420
[   13.924992]  __driver_probe_device+0x115/0x190
[   13.924994]  driver_probe_device+0x23/0xc0
[   13.924996]  __driver_attach+0xbd/0x1d0
[   13.924998]  ? __device_attach_driver+0x110/0x110
[   13.924999]  bus_for_each_dev+0x7e/0xc0
[   13.925001]  driver_attach+0x1e/0x20
[   13.925003]  bus_add_driver+0x135/0x200
[   13.925005]  driver_register+0x95/0xf0
[   13.925008]  ? 0xffffffffc0766000
[   13.925010]  __pci_register_driver+0x68/0x70
[   13.925011]  mt7921_pci_driver_init+0x23/0x1000 [mt7921e]
[   13.925015]  do_one_initcall+0x48/0x1d0
[   13.925019]  ? kmem_cache_alloc_trace+0x19e/0x2e0
[   13.925022]  do_init_module+0x62/0x280
[   13.925025]  load_module+0xac9/0xbb0
[   13.925027]  __do_sys_finit_module+0xbf/0x120
[   13.925029]  __x64_sys_finit_module+0x18/0x20
[   13.925030]  do_syscall_64+0x5c/0xc0
[   13.925033]  ? do_syscall_64+0x69/0xc0
[   13.925034]  ? sysvec_reschedule_ipi+0x78/0xe0
[   13.925036]  ? asm_sysvec_reschedule_ipi+0xa/0x20
[   13.925039]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   13.925040] RIP: 0033:0x7fbf2b90f94d
[   13.925045] RSP: 002b:00007ffe2ec7e5d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   13.925047] RAX: ffffffffffffffda RBX: 000056106b0634e0 RCX: 00007fbf2b90f94d
[   13.925048] RDX: 0000000000000000 RSI: 00007fbf2baa3441 RDI: 0000000000000013
[   13.925049] RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000002
[   13.925050] R10: 0000000000000013 R11: 0000000000000246 R12: 00007fbf2baa3441
[   13.925051] R13: 000056106b062620 R14: 000056106b0610c0 R15: 000056106b0640d0
[   13.925053]  </TASK>

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/dma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index 3a9af8931c35..3d644925a4e0 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -465,6 +465,7 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q)
 
 		qbuf.addr = addr + offset;
 		qbuf.len = len - offset;
+		qbuf.skip_unmap = false;
 		mt76_dma_add_buf(dev, q, &qbuf, 1, 0, buf, NULL);
 		frames++;
 	}
-- 
2.34.1

[PATCH AUTOSEL 5.17 041/149] i40e: Add sending commands in atomic context

[Sasha Levin]

From: Jedrzej Jagielski <jedrzej.jagielski@intel.com>

[ Upstream commit 59b3d7350ff35c939b8e173eb2eecac80a5ee046 ]

Change functions:
- i40e_aq_add_macvlan
- i40e_aq_remove_macvlan
- i40e_aq_delete_element
- i40e_aq_add_vsi
- i40e_aq_update_vsi_params
to explicitly use i40e_asq_send_command_atomic(..., true)
instead of i40e_asq_send_command, as they use mutexes and do some
work in an atomic context.
Without this change setting vlan via netdev will fail with
call trace cased by bug "BUG: scheduling while atomic".

Signed-off-by: Witold Fijalkowski <witoldx.fijalkowski@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_common.c | 21 +++++++++++--------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 9ddeb015eb7e..e830987a8c6d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -1899,8 +1899,9 @@ i40e_status i40e_aq_add_vsi(struct i40e_hw *hw,
 
 	desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD));
 
-	status = i40e_asq_send_command(hw, &desc, &vsi_ctx->info,
-				    sizeof(vsi_ctx->info), cmd_details);
+	status = i40e_asq_send_command_atomic(hw, &desc, &vsi_ctx->info,
+					      sizeof(vsi_ctx->info),
+					      cmd_details, true);
 
 	if (status)
 		goto aq_add_vsi_exit;
@@ -2287,8 +2288,9 @@ i40e_status i40e_aq_update_vsi_params(struct i40e_hw *hw,
 
 	desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD));
 
-	status = i40e_asq_send_command(hw, &desc, &vsi_ctx->info,
-				    sizeof(vsi_ctx->info), cmd_details);
+	status = i40e_asq_send_command_atomic(hw, &desc, &vsi_ctx->info,
+					      sizeof(vsi_ctx->info),
+					      cmd_details, true);
 
 	vsi_ctx->vsis_allocated = le16_to_cpu(resp->vsi_used);
 	vsi_ctx->vsis_unallocated = le16_to_cpu(resp->vsi_free);
@@ -2673,8 +2675,8 @@ i40e_status i40e_aq_add_macvlan(struct i40e_hw *hw, u16 seid,
 	if (buf_size > I40E_AQ_LARGE_BUF)
 		desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
 
-	status = i40e_asq_send_command(hw, &desc, mv_list, buf_size,
-				       cmd_details);
+	status = i40e_asq_send_command_atomic(hw, &desc, mv_list, buf_size,
+					      cmd_details, true);
 
 	return status;
 }
@@ -2715,8 +2717,8 @@ i40e_status i40e_aq_remove_macvlan(struct i40e_hw *hw, u16 seid,
 	if (buf_size > I40E_AQ_LARGE_BUF)
 		desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB);
 
-	status = i40e_asq_send_command(hw, &desc, mv_list, buf_size,
-				       cmd_details);
+	status = i40e_asq_send_command_atomic(hw, &desc, mv_list, buf_size,
+					      cmd_details, true);
 
 	return status;
 }
@@ -3868,7 +3870,8 @@ i40e_status i40e_aq_delete_element(struct i40e_hw *hw, u16 seid,
 
 	cmd->seid = cpu_to_le16(seid);
 
-	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
+	status = i40e_asq_send_command_atomic(hw, &desc, NULL, 0,
+					      cmd_details, true);
 
 	return status;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 042/149] cfg80211: don't add non transmitted BSS to 6GHz scanned channels

[Sasha Levin]

From: Avraham Stern <avraham.stern@intel.com>

[ Upstream commit 5666ee154f4696c011dfa8544aaf5591b6b87515 ]

When adding 6GHz channels to scan request based on reported
co-located APs, don't add channels that have only APs with
"non-transmitted" BSSes if they only match the wildcard SSID since
they will be found by probing the "transmitted" BSS.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220202104617.f6ddf099f934.I231e55885d3644f292d00dfe0f42653269f2559e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/wireless/scan.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index b888522f133b..b2fdac96bab0 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -700,8 +700,12 @@ static bool cfg80211_find_ssid_match(struct cfg80211_colocated_ap *ap,
 
 	for (i = 0; i < request->n_ssids; i++) {
 		/* wildcard ssid in the scan request */
-		if (!request->ssids[i].ssid_len)
+		if (!request->ssids[i].ssid_len) {
+			if (ap->multi_bss && !ap->transmitted_bssid)
+				continue;
+
 			return true;
+		}
 
 		if (ap->ssid_len &&
 		    ap->ssid_len == request->ssids[i].ssid_len) {
@@ -827,6 +831,9 @@ static int cfg80211_scan_6ghz(struct cfg80211_registered_device *rdev)
 		    !cfg80211_find_ssid_match(ap, request))
 			continue;
 
+		if (!request->n_ssids && ap->multi_bss && !ap->transmitted_bssid)
+			continue;
+
 		cfg80211_scan_req_add_chan(request, chan, true);
 		memcpy(scan_6ghz_params->bssid, ap->bssid, ETH_ALEN);
 		scan_6ghz_params->short_ssid = ap->short_ssid;
-- 
2.34.1

[PATCH AUTOSEL 5.17 043/149] libbpf: Fix build issue with llvm-readelf

[Sasha Levin]

From: Yonghong Song <yhs@fb.com>

[ Upstream commit 0908a66ad1124c1634c33847ac662106f7f2c198 ]

There are cases where clang compiler is packaged in a way
readelf is a symbolic link to llvm-readelf. In such cases,
llvm-readelf will be used instead of default binutils readelf,
and the following error will appear during libbpf build:

  Warning: Num of global symbols in
   /home/yhs/work/bpf-next/tools/testing/selftests/bpf/tools/build/libbpf/sharedobjs/libbpf-in.o (367)
   does NOT match with num of versioned symbols in
   /home/yhs/work/bpf-next/tools/testing/selftests/bpf/tools/build/libbpf/libbpf.so libbpf.map (383).
   Please make sure all LIBBPF_API symbols are versioned in libbpf.map.
  --- /home/yhs/work/bpf-next/tools/testing/selftests/bpf/tools/build/libbpf/libbpf_global_syms.tmp ...
  +++ /home/yhs/work/bpf-next/tools/testing/selftests/bpf/tools/build/libbpf/libbpf_versioned_syms.tmp ...
  @@ -324,6 +324,22 @@
   btf__str_by_offset
   btf__type_by_id
   btf__type_cnt
  +LIBBPF_0.0.1
  +LIBBPF_0.0.2
  +LIBBPF_0.0.3
  +LIBBPF_0.0.4
  +LIBBPF_0.0.5
  +LIBBPF_0.0.6
  +LIBBPF_0.0.7
  +LIBBPF_0.0.8
  +LIBBPF_0.0.9
  +LIBBPF_0.1.0
  +LIBBPF_0.2.0
  +LIBBPF_0.3.0
  +LIBBPF_0.4.0
  +LIBBPF_0.5.0
  +LIBBPF_0.6.0
  +LIBBPF_0.7.0
   libbpf_attach_type_by_name
   libbpf_find_kernel_btf
   libbpf_find_vmlinux_btf_id
  make[2]: *** [Makefile:184: check_abi] Error 1
  make[1]: *** [Makefile:140: all] Error 2

The above failure is due to different printouts for some ABS
versioned symbols. For example, with the same libbpf.so,
  $ /bin/readelf --dyn-syms --wide tools/lib/bpf/libbpf.so | grep "LIBBPF" | grep ABS
     134: 0000000000000000     0 OBJECT  GLOBAL DEFAULT  ABS LIBBPF_0.5.0
     202: 0000000000000000     0 OBJECT  GLOBAL DEFAULT  ABS LIBBPF_0.6.0
     ...
  $ /opt/llvm/bin/readelf --dyn-syms --wide tools/lib/bpf/libbpf.so | grep "LIBBPF" | grep ABS
     134: 0000000000000000     0 OBJECT  GLOBAL DEFAULT   ABS LIBBPF_0.5.0@@LIBBPF_0.5.0
     202: 0000000000000000     0 OBJECT  GLOBAL DEFAULT   ABS LIBBPF_0.6.0@@LIBBPF_0.6.0
     ...
The binutils readelf doesn't print out the symbol LIBBPF_* version and llvm-readelf does.
Such a difference caused libbpf build failure with llvm-readelf.

The proposed fix filters out all ABS symbols as they are not part of the comparison.
This works for both binutils readelf and llvm-readelf.

Reported-by: Delyan Kratunov <delyank@fb.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220204214355.502108-1-yhs@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index f947b61b2107..b8b37fe76006 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -131,7 +131,7 @@ GLOBAL_SYM_COUNT = $(shell readelf -s --wide $(BPF_IN_SHARED) | \
 			   sort -u | wc -l)
 VERSIONED_SYM_COUNT = $(shell readelf --dyn-syms --wide $(OUTPUT)libbpf.so | \
 			      sed 's/\[.*\]//' | \
-			      awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}' | \
+			      awk '/GLOBAL/ && /DEFAULT/ && !/UND|ABS/ {print $$NF}' | \
 			      grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 | sort -u | wc -l)
 
 CMD_TARGETS = $(LIB_TARGET) $(PC_FILE)
@@ -194,7 +194,7 @@ check_abi: $(OUTPUT)libbpf.so $(VERSION_SCRIPT)
 		    sort -u > $(OUTPUT)libbpf_global_syms.tmp;		 \
 		readelf --dyn-syms --wide $(OUTPUT)libbpf.so |		 \
 		    sed 's/\[.*\]//' |					 \
-		    awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}'|  \
+		    awk '/GLOBAL/ && /DEFAULT/ && !/UND|ABS/ {print $$NF}'|  \
 		    grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 |		 \
 		    sort -u > $(OUTPUT)libbpf_versioned_syms.tmp; 	 \
 		diff -u $(OUTPUT)libbpf_global_syms.tmp			 \
-- 
2.34.1

[PATCH AUTOSEL 5.17 044/149] ipv6: make mc_forwarding atomic

[Sasha Levin]

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 145c7a793838add5e004e7d49a67654dc7eba147 ]

This fixes minor data-races in ip6_mc_input() and
batadv_mcast_mla_rtr_flags_softif_get_ipv6()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/ipv6.h       | 2 +-
 net/batman-adv/multicast.c | 2 +-
 net/ipv6/addrconf.c        | 4 ++--
 net/ipv6/ip6_input.c       | 2 +-
 net/ipv6/ip6mr.c           | 8 ++++----
 5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index a59d25f19385..b8641dc0ee66 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -51,7 +51,7 @@ struct ipv6_devconf {
 	__s32		use_optimistic;
 #endif
 #ifdef CONFIG_IPV6_MROUTE
-	__s32		mc_forwarding;
+	atomic_t	mc_forwarding;
 #endif
 	__s32		disable_ipv6;
 	__s32		drop_unicast_in_l2_multicast;
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index f4004cf0ff6f..9f311fddfaf9 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -134,7 +134,7 @@ static u8 batadv_mcast_mla_rtr_flags_softif_get_ipv6(struct net_device *dev)
 {
 	struct inet6_dev *in6_dev = __in6_dev_get(dev);
 
-	if (in6_dev && in6_dev->cnf.mc_forwarding)
+	if (in6_dev && atomic_read(&in6_dev->cnf.mc_forwarding))
 		return BATADV_NO_FLAGS;
 	else
 		return BATADV_MCAST_WANT_NO_RTR6;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index f908e2fd30b2..4df84013c4e6 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -554,7 +554,7 @@ static int inet6_netconf_fill_devconf(struct sk_buff *skb, int ifindex,
 #ifdef CONFIG_IPV6_MROUTE
 	if ((all || type == NETCONFA_MC_FORWARDING) &&
 	    nla_put_s32(skb, NETCONFA_MC_FORWARDING,
-			devconf->mc_forwarding) < 0)
+			atomic_read(&devconf->mc_forwarding)) < 0)
 		goto nla_put_failure;
 #endif
 	if ((all || type == NETCONFA_PROXY_NEIGH) &&
@@ -5539,7 +5539,7 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
 	array[DEVCONF_USE_OPTIMISTIC] = cnf->use_optimistic;
 #endif
 #ifdef CONFIG_IPV6_MROUTE
-	array[DEVCONF_MC_FORWARDING] = cnf->mc_forwarding;
+	array[DEVCONF_MC_FORWARDING] = atomic_read(&cnf->mc_forwarding);
 #endif
 	array[DEVCONF_DISABLE_IPV6] = cnf->disable_ipv6;
 	array[DEVCONF_ACCEPT_DAD] = cnf->accept_dad;
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 80256717868e..d4b1e2c5aa76 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -508,7 +508,7 @@ int ip6_mc_input(struct sk_buff *skb)
 	/*
 	 *      IPv6 multicast router mode is now supported ;)
 	 */
-	if (dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding &&
+	if (atomic_read(&dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding) &&
 	    !(ipv6_addr_type(&hdr->daddr) &
 	      (IPV6_ADDR_LOOPBACK|IPV6_ADDR_LINKLOCAL)) &&
 	    likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) {
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 8a2db926b5eb..e3c884678dbe 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -734,7 +734,7 @@ static int mif6_delete(struct mr_table *mrt, int vifi, int notify,
 
 	in6_dev = __in6_dev_get(dev);
 	if (in6_dev) {
-		in6_dev->cnf.mc_forwarding--;
+		atomic_dec(&in6_dev->cnf.mc_forwarding);
 		inet6_netconf_notify_devconf(dev_net(dev), RTM_NEWNETCONF,
 					     NETCONFA_MC_FORWARDING,
 					     dev->ifindex, &in6_dev->cnf);
@@ -902,7 +902,7 @@ static int mif6_add(struct net *net, struct mr_table *mrt,
 
 	in6_dev = __in6_dev_get(dev);
 	if (in6_dev) {
-		in6_dev->cnf.mc_forwarding++;
+		atomic_inc(&in6_dev->cnf.mc_forwarding);
 		inet6_netconf_notify_devconf(dev_net(dev), RTM_NEWNETCONF,
 					     NETCONFA_MC_FORWARDING,
 					     dev->ifindex, &in6_dev->cnf);
@@ -1553,7 +1553,7 @@ static int ip6mr_sk_init(struct mr_table *mrt, struct sock *sk)
 	} else {
 		rcu_assign_pointer(mrt->mroute_sk, sk);
 		sock_set_flag(sk, SOCK_RCU_FREE);
-		net->ipv6.devconf_all->mc_forwarding++;
+		atomic_inc(&net->ipv6.devconf_all->mc_forwarding);
 	}
 	write_unlock_bh(&mrt_lock);
 
@@ -1586,7 +1586,7 @@ int ip6mr_sk_done(struct sock *sk)
 			 * so the RCU grace period before sk freeing
 			 * is guaranteed by sk_destruct()
 			 */
-			net->ipv6.devconf_all->mc_forwarding--;
+			atomic_dec(&net->ipv6.devconf_all->mc_forwarding);
 			write_unlock_bh(&mrt_lock);
 			inet6_netconf_notify_devconf(net, RTM_NEWNETCONF,
 						     NETCONFA_MC_FORWARDING,
-- 
2.34.1

[PATCH AUTOSEL 5.17 045/149] ref_tracker: implement use-after-free detection

[Sasha Levin]

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit e3ececfe668facd87d920b608349a32607060e66 ]

Whenever ref_tracker_dir_init() is called, mark the struct ref_tracker_dir
as dead.

Test the dead status from ref_tracker_alloc() and ref_tracker_free()

This should detect buggy dev_put()/dev_hold() happening too late
in netdevice dismantle process.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/ref_tracker.h | 2 ++
 lib/ref_tracker.c           | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/include/linux/ref_tracker.h b/include/linux/ref_tracker.h
index 60f3453be23e..a443abda937d 100644
--- a/include/linux/ref_tracker.h
+++ b/include/linux/ref_tracker.h
@@ -13,6 +13,7 @@ struct ref_tracker_dir {
 	spinlock_t		lock;
 	unsigned int		quarantine_avail;
 	refcount_t		untracked;
+	bool			dead;
 	struct list_head	list; /* List of active trackers */
 	struct list_head	quarantine; /* List of dead trackers */
 #endif
@@ -26,6 +27,7 @@ static inline void ref_tracker_dir_init(struct ref_tracker_dir *dir,
 	INIT_LIST_HEAD(&dir->quarantine);
 	spin_lock_init(&dir->lock);
 	dir->quarantine_avail = quarantine_count;
+	dir->dead = false;
 	refcount_set(&dir->untracked, 1);
 	stack_depot_init();
 }
diff --git a/lib/ref_tracker.c b/lib/ref_tracker.c
index a6789c0c626b..32ff6bd497f8 100644
--- a/lib/ref_tracker.c
+++ b/lib/ref_tracker.c
@@ -20,6 +20,7 @@ void ref_tracker_dir_exit(struct ref_tracker_dir *dir)
 	unsigned long flags;
 	bool leak = false;
 
+	dir->dead = true;
 	spin_lock_irqsave(&dir->lock, flags);
 	list_for_each_entry_safe(tracker, n, &dir->quarantine, head) {
 		list_del(&tracker->head);
@@ -72,6 +73,8 @@ int ref_tracker_alloc(struct ref_tracker_dir *dir,
 	gfp_t gfp_mask = gfp;
 	unsigned long flags;
 
+	WARN_ON_ONCE(dir->dead);
+
 	if (gfp & __GFP_DIRECT_RECLAIM)
 		gfp_mask |= __GFP_NOFAIL;
 	*trackerp = tracker = kzalloc(sizeof(*tracker), gfp_mask);
@@ -100,6 +103,8 @@ int ref_tracker_free(struct ref_tracker_dir *dir,
 	unsigned int nr_entries;
 	unsigned long flags;
 
+	WARN_ON_ONCE(dir->dead);
+
 	if (!tracker) {
 		refcount_dec(&dir->untracked);
 		return -EEXIST;
-- 
2.34.1

[PATCH AUTOSEL 5.17 046/149] net: initialize init_net earlier

[Sasha Levin]

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 9c1be1935fb68b2413796cdc03d019b8cf35ab51 ]

While testing a patch that will follow later
("net: add netns refcount tracker to struct nsproxy")
I found that devtmpfs_init() was called before init_net
was initialized.

This is a bug, because devtmpfs_setup() calls
ksys_unshare(CLONE_NEWNS);

This has the effect of increasing init_net refcount,
which will be later overwritten to 1, as part of setup_net(&init_net)

We had too many prior patches [1] trying to work around the root cause.

Really, make sure init_net is in BSS section, and that net_ns_init()
is called earlier at boot time.

Note that another patch ("vfs: add netns refcount tracker
to struct fs_context") also will need net_ns_init() being called
before vfs_caches_init()

As a bonus, this patch saves around 4KB in .data section.

[1]

f8c46cb39079 ("netns: do not call pernet ops for not yet set up init_net namespace")
b5082df8019a ("net: Initialise init_net.count to 1")
734b65417b24 ("net: Statically initialize init_net.dev_base_head")

v2: fixed a build error reported by kernel build bots (CONFIG_NET=n)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/net_namespace.h |  6 ++++++
 init/main.c                 |  2 ++
 net/core/dev.c              |  3 +--
 net/core/net_namespace.c    | 17 +++++------------
 4 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 5b61c462e534..374cc7b260fc 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -513,4 +513,10 @@ static inline void fnhe_genid_bump(struct net *net)
 	atomic_inc(&net->fnhe_genid);
 }
 
+#ifdef CONFIG_NET
+void net_ns_init(void);
+#else
+static inline void net_ns_init(void) {}
+#endif
+
 #endif /* __NET_NET_NAMESPACE_H */
diff --git a/init/main.c b/init/main.c
index 65fa2e41a9c0..ada50f5a15e4 100644
--- a/init/main.c
+++ b/init/main.c
@@ -99,6 +99,7 @@
 #include <linux/kcsan.h>
 #include <linux/init_syscalls.h>
 #include <linux/stackdepot.h>
+#include <net/net_namespace.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -1116,6 +1117,7 @@ asmlinkage __visible void __init __no_sanitize_address start_kernel(void)
 	key_init();
 	security_init();
 	dbg_late_init();
+	net_ns_init();
 	vfs_caches_init();
 	pagecache_init();
 	signals_init();
diff --git a/net/core/dev.c b/net/core/dev.c
index 1baab07820f6..91cf709c98b3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -10732,8 +10732,7 @@ static int __net_init netdev_init(struct net *net)
 	BUILD_BUG_ON(GRO_HASH_BUCKETS >
 		     8 * sizeof_field(struct napi_struct, gro_bitmask));
 
-	if (net != &init_net)
-		INIT_LIST_HEAD(&net->dev_base_head);
+	INIT_LIST_HEAD(&net->dev_base_head);
 
 	net->dev_name_head = netdev_create_hash();
 	if (net->dev_name_head == NULL)
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index a5b5bb99c644..212e65add951 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -44,13 +44,7 @@ EXPORT_SYMBOL_GPL(net_rwsem);
 static struct key_tag init_net_key_domain = { .usage = REFCOUNT_INIT(1) };
 #endif
 
-struct net init_net = {
-	.ns.count	= REFCOUNT_INIT(1),
-	.dev_base_head	= LIST_HEAD_INIT(init_net.dev_base_head),
-#ifdef CONFIG_KEYS
-	.key_domain	= &init_net_key_domain,
-#endif
-};
+struct net init_net;
 EXPORT_SYMBOL(init_net);
 
 static bool init_net_initialized;
@@ -1084,7 +1078,7 @@ static void rtnl_net_notifyid(struct net *net, int cmd, int id, u32 portid,
 	rtnl_set_sk_err(net, RTNLGRP_NSID, err);
 }
 
-static int __init net_ns_init(void)
+void __init net_ns_init(void)
 {
 	struct net_generic *ng;
 
@@ -1105,6 +1099,9 @@ static int __init net_ns_init(void)
 
 	rcu_assign_pointer(init_net.gen, ng);
 
+#ifdef CONFIG_KEYS
+	init_net.key_domain = &init_net_key_domain;
+#endif
 	down_write(&pernet_ops_rwsem);
 	if (setup_net(&init_net, &init_user_ns))
 		panic("Could not setup the initial network namespace");
@@ -1119,12 +1116,8 @@ static int __init net_ns_init(void)
 		      RTNL_FLAG_DOIT_UNLOCKED);
 	rtnl_register(PF_UNSPEC, RTM_GETNSID, rtnl_net_getid, rtnl_net_dumpid,
 		      RTNL_FLAG_DOIT_UNLOCKED);
-
-	return 0;
 }
 
-pure_initcall(net_ns_init);
-
 static void free_exit_list(struct pernet_operations *ops, struct list_head *net_exit_list)
 {
 	ops_pre_exit_list(ops, net_exit_list);
-- 
2.34.1

[PATCH AUTOSEL 5.17 047/149] powerpc: Set crashkernel offset to mid of RMA region

[Sasha Levin]

From: Sourabh Jain <sourabhjain@linux.ibm.com>

[ Upstream commit 7c5ed82b800d8615cdda00729e7b62e5899f0b13 ]

On large config LPARs (having 192 and more cores), Linux fails to boot
due to insufficient memory in the first memblock. It is due to the
memory reservation for the crash kernel which starts at 128MB offset of
the first memblock. This memory reservation for the crash kernel doesn't
leave enough space in the first memblock to accommodate other essential
system resources.

The crash kernel start address was set to 128MB offset by default to
ensure that the crash kernel get some memory below the RMA region which
is used to be of size 256MB. But given that the RMA region size can be
512MB or more, setting the crash kernel offset to mid of RMA size will
leave enough space for the kernel to allocate memory for other system
resources.

Since the above crash kernel offset change is only applicable to the LPAR
platform, the LPAR feature detection is pushed before the crash kernel
reservation. The rest of LPAR specific initialization will still
be done during pseries_probe_fw_features as usual.

This patch is dependent on changes to paca allocation for boot CPU. It
expect boot CPU to discover 1T segment support which is introduced by
the patch posted here:
https://lists.ozlabs.org/pipermail/linuxppc-dev/2022-January/239175.html

Reported-by: Abdul haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220204085601.107257-1-sourabhjain@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/rtas.c |  6 ++++++
 arch/powerpc/kexec/core.c  | 15 +++++++++++----
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 733e6ef36758..1f42aabbbab3 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -1313,6 +1313,12 @@ int __init early_init_dt_scan_rtas(unsigned long node,
 	entryp = of_get_flat_dt_prop(node, "linux,rtas-entry", NULL);
 	sizep  = of_get_flat_dt_prop(node, "rtas-size", NULL);
 
+#ifdef CONFIG_PPC64
+	/* need this feature to decide the crashkernel offset */
+	if (of_get_flat_dt_prop(node, "ibm,hypertas-functions", NULL))
+		powerpc_firmware_features |= FW_FEATURE_LPAR;
+#endif
+
 	if (basep && entryp && sizep) {
 		rtas.base = *basep;
 		rtas.entry = *entryp;
diff --git a/arch/powerpc/kexec/core.c b/arch/powerpc/kexec/core.c
index 8b68d9f91a03..abf5897ae88c 100644
--- a/arch/powerpc/kexec/core.c
+++ b/arch/powerpc/kexec/core.c
@@ -134,11 +134,18 @@ void __init reserve_crashkernel(void)
 	if (!crashk_res.start) {
 #ifdef CONFIG_PPC64
 		/*
-		 * On 64bit we split the RMO in half but cap it at half of
-		 * a small SLB (128MB) since the crash kernel needs to place
-		 * itself and some stacks to be in the first segment.
+		 * On the LPAR platform place the crash kernel to mid of
+		 * RMA size (512MB or more) to ensure the crash kernel
+		 * gets enough space to place itself and some stack to be
+		 * in the first segment. At the same time normal kernel
+		 * also get enough space to allocate memory for essential
+		 * system resource in the first segment. Keep the crash
+		 * kernel starts at 128MB offset on other platforms.
 		 */
-		crashk_res.start = min(0x8000000ULL, (ppc64_rma_size / 2));
+		if (firmware_has_feature(FW_FEATURE_LPAR))
+			crashk_res.start = ppc64_rma_size / 2;
+		else
+			crashk_res.start = min(0x8000000ULL, (ppc64_rma_size / 2));
 #else
 		crashk_res.start = KDUMP_KERNELBASE;
 #endif
-- 
2.34.1

[PATCH AUTOSEL 5.17 048/149] drm/amdgpu: Fix recursive locking warning

[Sasha Levin]

From: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>

[ Upstream commit 447c7997b62a5115ba4da846dcdee4fc12298a6a ]

Noticed the below warning while running a pytorch workload on vega10
GPUs. Change to trylock to avoid conflicts with already held reservation
locks.

[  +0.000003] WARNING: possible recursive locking detected
[  +0.000003] 5.13.0-kfd-rajneesh #1030 Not tainted
[  +0.000004] --------------------------------------------
[  +0.000002] python/4822 is trying to acquire lock:
[  +0.000004] ffff932cd9a259f8 (reservation_ww_class_mutex){+.+.}-{3:3},
at: amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[  +0.000203]
              but task is already holding lock:
[  +0.000003] ffff932cbb7181f8 (reservation_ww_class_mutex){+.+.}-{3:3},
at: ttm_eu_reserve_buffers+0x270/0x470 [ttm]
[  +0.000017]
              other info that might help us debug this:
[  +0.000002]  Possible unsafe locking scenario:

[  +0.000003]        CPU0
[  +0.000002]        ----
[  +0.000002]   lock(reservation_ww_class_mutex);
[  +0.000004]   lock(reservation_ww_class_mutex);
[  +0.000003]
               *** DEADLOCK ***

[  +0.000002]  May be due to missing lock nesting notation

[  +0.000003] 7 locks held by python/4822:
[  +0.000003]  #0: ffff932c4ac028d0 (&process->mutex){+.+.}-{3:3}, at:
kfd_ioctl_map_memory_to_gpu+0x10b/0x320 [amdgpu]
[  +0.000232]  #1: ffff932c55e830a8 (&info->lock#2){+.+.}-{3:3}, at:
amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0x64/0xf60 [amdgpu]
[  +0.000241]  #2: ffff932cc45b5e68 (&(*mem)->lock){+.+.}-{3:3}, at:
amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0xdf/0xf60 [amdgpu]
[  +0.000236]  #3: ffffb2b35606fd28
(reservation_ww_class_acquire){+.+.}-{0:0}, at:
amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0x232/0xf60 [amdgpu]
[  +0.000235]  #4: ffff932cbb7181f8
(reservation_ww_class_mutex){+.+.}-{3:3}, at:
ttm_eu_reserve_buffers+0x270/0x470 [ttm]
[  +0.000015]  #5: ffffffffc045f700 (*(sspp++)){....}-{0:0}, at:
drm_dev_enter+0x5/0xa0 [drm]
[  +0.000038]  #6: ffff932c52da7078 (&vm->eviction_lock){+.+.}-{3:3},
at: amdgpu_vm_bo_update_mapping+0xd5/0x4f0 [amdgpu]
[  +0.000195]
              stack backtrace:
[  +0.000003] CPU: 11 PID: 4822 Comm: python Not tainted
5.13.0-kfd-rajneesh #1030
[  +0.000005] Hardware name: GIGABYTE MZ01-CE0-00/MZ01-CE0-00, BIOS F02
08/29/2018
[  +0.000003] Call Trace:
[  +0.000003]  dump_stack+0x6d/0x89
[  +0.000010]  __lock_acquire+0xb93/0x1a90
[  +0.000009]  lock_acquire+0x25d/0x2d0
[  +0.000005]  ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[  +0.000184]  ? lock_is_held_type+0xa2/0x110
[  +0.000006]  ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[  +0.000184]  __ww_mutex_lock.constprop.17+0xca/0x1060
[  +0.000007]  ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[  +0.000183]  ? lock_release+0x13f/0x270
[  +0.000005]  ? lock_is_held_type+0xa2/0x110
[  +0.000006]  ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[  +0.000183]  amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[  +0.000185]  ttm_bo_release+0x4c6/0x580 [ttm]
[  +0.000010]  amdgpu_bo_unref+0x1a/0x30 [amdgpu]
[  +0.000183]  amdgpu_vm_free_table+0x76/0xa0 [amdgpu]
[  +0.000189]  amdgpu_vm_free_pts+0xb8/0xf0 [amdgpu]
[  +0.000189]  amdgpu_vm_update_ptes+0x411/0x770 [amdgpu]
[  +0.000191]  amdgpu_vm_bo_update_mapping+0x324/0x4f0 [amdgpu]
[  +0.000191]  amdgpu_vm_bo_update+0x251/0x610 [amdgpu]
[  +0.000191]  update_gpuvm_pte+0xcc/0x290 [amdgpu]
[  +0.000229]  ? amdgpu_vm_bo_map+0xd7/0x130 [amdgpu]
[  +0.000190]  amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0x912/0xf60
[amdgpu]
[  +0.000234]  kfd_ioctl_map_memory_to_gpu+0x182/0x320 [amdgpu]
[  +0.000218]  kfd_ioctl+0x2b9/0x600 [amdgpu]
[  +0.000216]  ? kfd_ioctl_unmap_memory_from_gpu+0x270/0x270 [amdgpu]
[  +0.000216]  ? lock_release+0x13f/0x270
[  +0.000006]  ? __fget_files+0x107/0x1e0
[  +0.000007]  __x64_sys_ioctl+0x8b/0xd0
[  +0.000007]  do_syscall_64+0x36/0x70
[  +0.000004]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  +0.000007] RIP: 0033:0x7fbff90a7317
[  +0.000004] Code: b3 66 90 48 8b 05 71 4b 2d 00 64 c7 00 26 00 00 00
48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f
05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 41 4b 2d 00 f7 d8 64 89 01 48
[  +0.000005] RSP: 002b:00007fbe301fe648 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[  +0.000006] RAX: ffffffffffffffda RBX: 00007fbcc402d820 RCX:
00007fbff90a7317
[  +0.000003] RDX: 00007fbe301fe690 RSI: 00000000c0184b18 RDI:
0000000000000004
[  +0.000003] RBP: 00007fbe301fe690 R08: 0000000000000000 R09:
00007fbcc402d880
[  +0.000003] R10: 0000000002001000 R11: 0000000000000246 R12:
00000000c0184b18
[  +0.000003] R13: 0000000000000004 R14: 00007fbf689593a0 R15:
00007fbcc402d820

Cc: Christian König <christian.koenig@amd.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 5661b82d84d4..dda53fe30975 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1303,7 +1303,8 @@ void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
 	    !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE))
 		return;
 
-	dma_resv_lock(bo->base.resv, NULL);
+	if (WARN_ON_ONCE(!dma_resv_trylock(bo->base.resv)))
+		return;
 
 	r = amdgpu_fill_buffer(abo, AMDGPU_POISON, bo->base.resv, &fence);
 	if (!WARN_ON(r)) {
-- 
2.34.1

[PATCH AUTOSEL 5.17 049/149] scsi: smartpqi: Fix rmmod stack trace

[Sasha Levin]

From: Don Brace <don.brace@microchip.com>

[ Upstream commit c4ff687d25c05919382a759503bd3821689f4e2f ]

Prevent "BUG: scheduling while atomic: rmmod" stack trace.

Stop setting spin_locks before calling OS functions to remove devices.

Link: https://lore.kernel.org/r/164375207296.440833.4996145011193819683.stgit@brunhilda.pdev.net
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/smartpqi/smartpqi_init.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index f0897d587454..2db9f874cc51 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -2513,17 +2513,15 @@ static void pqi_remove_all_scsi_devices(struct pqi_ctrl_info *ctrl_info)
 	struct pqi_scsi_dev *device;
 	struct pqi_scsi_dev *next;
 
-	spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
-
 	list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list,
 		scsi_device_list_entry) {
 		if (pqi_is_device_added(device))
 			pqi_remove_device(ctrl_info, device);
+		spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
 		list_del(&device->scsi_device_list_entry);
 		pqi_free_device(device);
+		spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
 	}
-
-	spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
 }
 
 static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info)
-- 
2.34.1

[PATCH AUTOSEL 5.17 050/149] scsi: smartpqi: Fix kdump issue when controller is locked up

[Sasha Levin]

From: Mahesh Rajashekhara <mahesh.rajashekhara@microchip.com>

[ Upstream commit 3ada501d602abf02353445c03bb3258146445d90 ]

Avoid dropping into shell if the controller is in locked up state.

Driver issues SIS soft reset to bring back the controller to SIS mode while
OS boots into kdump mode.

If the controller is in lockup state, SIS soft reset does not work.

Since the controller lockup code has not been cleared, driver considers the
firmware is no longer up and running. Driver returns back an error code to
OS and the kdump fails.

Link: https://lore.kernel.org/r/164375212337.440833.11955356190354940369.stgit@brunhilda.pdev.net
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Signed-off-by: Mahesh Rajashekhara <mahesh.rajashekhara@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/smartpqi/smartpqi_init.c | 39 ++++++++++++++++-----------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 2db9f874cc51..f3749e508673 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -7855,6 +7855,21 @@ static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info)
 	return pqi_revert_to_sis_mode(ctrl_info);
 }
 
+static void pqi_perform_lockup_action(void)
+{
+	switch (pqi_lockup_action) {
+	case PANIC:
+		panic("FATAL: Smart Family Controller lockup detected");
+		break;
+	case REBOOT:
+		emergency_restart();
+		break;
+	case NONE:
+	default:
+		break;
+	}
+}
+
 static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
 {
 	int rc;
@@ -7879,8 +7894,15 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
 	 * commands.
 	 */
 	rc = sis_wait_for_ctrl_ready(ctrl_info);
-	if (rc)
+	if (rc) {
+		if (reset_devices) {
+			dev_err(&ctrl_info->pci_dev->dev,
+				"kdump init failed with error %d\n", rc);
+			pqi_lockup_action = REBOOT;
+			pqi_perform_lockup_action();
+		}
 		return rc;
+	}
 
 	/*
 	 * Get the controller properties.  This allows us to determine
@@ -8605,21 +8627,6 @@ static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int de
 	return pqi_ctrl_init_resume(ctrl_info);
 }
 
-static void pqi_perform_lockup_action(void)
-{
-	switch (pqi_lockup_action) {
-	case PANIC:
-		panic("FATAL: Smart Family Controller lockup detected");
-		break;
-	case REBOOT:
-		emergency_restart();
-		break;
-	case NONE:
-	default:
-		break;
-	}
-}
-
 static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = {
 	.data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR,
 	.status = SAM_STAT_CHECK_CONDITION,
-- 
2.34.1

[PATCH AUTOSEL 5.17 051/149] PCI: aardvark: Fix support for MSI interrupts

[Sasha Levin]

From: Pali Rohár <pali@kernel.org>

[ Upstream commit b0b0b8b897f8e12b2368e868bd7cdc5742d5c5a9 ]

Aardvark hardware supports Multi-MSI and MSI_FLAG_MULTI_PCI_MSI is already
set for the MSI chip. But when allocating MSI interrupt numbers for
Multi-MSI, the numbers need to be properly aligned, otherwise endpoint
devices send MSI interrupt with incorrect numbers.

Fix this issue by using function bitmap_find_free_region() instead of
bitmap_find_next_zero_area().

To ensure that aligned MSI interrupt numbers are used by endpoint devices,
we cannot use Linux virtual irq numbers (as they are random and not
properly aligned). Instead we need to use the aligned hwirq numbers.

This change fixes receiving MSI interrupts on Armada 3720 boards and
allows using NVMe disks which use Multi-MSI feature with 3 interrupts.

Without this NVMe disks freeze booting as linux nvme-core.c is waiting
60s for an interrupt.

Link: https://lore.kernel.org/r/20220110015018.26359-4-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pci-aardvark.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 4f5b44827d21..0f5fc4719ce4 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1184,7 +1184,7 @@ static void advk_msi_irq_compose_msi_msg(struct irq_data *data,
 
 	msg->address_lo = lower_32_bits(msi_msg);
 	msg->address_hi = upper_32_bits(msi_msg);
-	msg->data = data->irq;
+	msg->data = data->hwirq;
 }
 
 static int advk_msi_set_affinity(struct irq_data *irq_data,
@@ -1201,15 +1201,11 @@ static int advk_msi_irq_domain_alloc(struct irq_domain *domain,
 	int hwirq, i;
 
 	mutex_lock(&pcie->msi_used_lock);
-	hwirq = bitmap_find_next_zero_area(pcie->msi_used, MSI_IRQ_NUM,
-					   0, nr_irqs, 0);
-	if (hwirq >= MSI_IRQ_NUM) {
-		mutex_unlock(&pcie->msi_used_lock);
-		return -ENOSPC;
-	}
-
-	bitmap_set(pcie->msi_used, hwirq, nr_irqs);
+	hwirq = bitmap_find_free_region(pcie->msi_used, MSI_IRQ_NUM,
+					order_base_2(nr_irqs));
 	mutex_unlock(&pcie->msi_used_lock);
+	if (hwirq < 0)
+		return -ENOSPC;
 
 	for (i = 0; i < nr_irqs; i++)
 		irq_domain_set_info(domain, virq + i, hwirq + i,
@@ -1227,7 +1223,7 @@ static void advk_msi_irq_domain_free(struct irq_domain *domain,
 	struct advk_pcie *pcie = domain->host_data;
 
 	mutex_lock(&pcie->msi_used_lock);
-	bitmap_clear(pcie->msi_used, d->hwirq, nr_irqs);
+	bitmap_release_region(pcie->msi_used, d->hwirq, order_base_2(nr_irqs));
 	mutex_unlock(&pcie->msi_used_lock);
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 052/149] kvm: selftests: aarch64: fix assert in gicv3_access_reg

[Sasha Levin]

From: Ricardo Koller <ricarkol@google.com>

[ Upstream commit cc94d47ce16d4147d546e47c8248e8bd12ba5fe5 ]

The val argument in gicv3_access_reg can have any value when used for a
read, not necessarily 0.  Fix the assert by checking val only for
writes.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reported-by: Reiji Watanabe <reijiw@google.com>
Cc: Andrew Jones <drjones@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220127030858.3269036-2-ricarkol@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/lib/aarch64/gic_v3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
index 00f613c0583c..e4945fe66620 100644
--- a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
+++ b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
@@ -159,7 +159,7 @@ static void gicv3_access_reg(uint32_t intid, uint64_t offset,
 	uint32_t cpu_or_dist;
 
 	GUEST_ASSERT(bits_per_field <= reg_bits);
-	GUEST_ASSERT(*val < (1U << bits_per_field));
+	GUEST_ASSERT(!write || *val < (1U << bits_per_field));
 	/* Some registers like IROUTER are 64 bit long. Those are currently not
 	 * supported by readl nor writel, so just asserting here until then.
 	 */
-- 
2.34.1

[PATCH AUTOSEL 5.17 053/149] kvm: selftests: aarch64: pass vgic_irq guest args as a pointer

[Sasha Levin]

From: Ricardo Koller <ricarkol@google.com>

[ Upstream commit 11024a7a0ac26dd31ddfa0f6590e158bdf9ab858 ]

The guest in vgic_irq gets its arguments in a struct. This struct used
to fit nicely in a single register so vcpu_args_set() was able to pass
it by value by setting x0 with it. Unfortunately, this args struct grew
after some commits and some guest args became random (specically
kvm_supports_irqfd).

Fix this by passing the guest args as a pointer (after allocating some
guest memory for it).

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reported-by: Reiji Watanabe <reijiw@google.com>
Cc: Andrew Jones <drjones@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220127030858.3269036-3-ricarkol@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../testing/selftests/kvm/aarch64/vgic_irq.c  | 29 ++++++++++---------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/tools/testing/selftests/kvm/aarch64/vgic_irq.c b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
index 7eca97799917..7f3afee5cc00 100644
--- a/tools/testing/selftests/kvm/aarch64/vgic_irq.c
+++ b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
@@ -472,10 +472,10 @@ static void test_restore_active(struct test_args *args, struct kvm_inject_desc *
 		guest_restore_active(args, MIN_SPI, 4, f->cmd);
 }
 
-static void guest_code(struct test_args args)
+static void guest_code(struct test_args *args)
 {
-	uint32_t i, nr_irqs = args.nr_irqs;
-	bool level_sensitive = args.level_sensitive;
+	uint32_t i, nr_irqs = args->nr_irqs;
+	bool level_sensitive = args->level_sensitive;
 	struct kvm_inject_desc *f, *inject_fns;
 
 	gic_init(GIC_V3, 1, dist, redist);
@@ -484,11 +484,11 @@ static void guest_code(struct test_args args)
 		gic_irq_enable(i);
 
 	for (i = MIN_SPI; i < nr_irqs; i++)
-		gic_irq_set_config(i, !args.level_sensitive);
+		gic_irq_set_config(i, !level_sensitive);
 
-	gic_set_eoi_split(args.eoi_split);
+	gic_set_eoi_split(args->eoi_split);
 
-	reset_priorities(&args);
+	reset_priorities(args);
 	gic_set_priority_mask(CPU_PRIO_MASK);
 
 	inject_fns  = level_sensitive ? inject_level_fns
@@ -497,17 +497,17 @@ static void guest_code(struct test_args args)
 	local_irq_enable();
 
 	/* Start the tests. */
-	for_each_supported_inject_fn(&args, inject_fns, f) {
-		test_injection(&args, f);
-		test_preemption(&args, f);
-		test_injection_failure(&args, f);
+	for_each_supported_inject_fn(args, inject_fns, f) {
+		test_injection(args, f);
+		test_preemption(args, f);
+		test_injection_failure(args, f);
 	}
 
 	/* Restore the active state of IRQs. This would happen when live
 	 * migrating IRQs in the middle of being handled.
 	 */
-	for_each_supported_activate_fn(&args, set_active_fns, f)
-		test_restore_active(&args, f);
+	for_each_supported_activate_fn(args, set_active_fns, f)
+		test_restore_active(args, f);
 
 	GUEST_DONE();
 }
@@ -739,6 +739,7 @@ static void test_vgic(uint32_t nr_irqs, bool level_sensitive, bool eoi_split)
 	int gic_fd;
 	struct kvm_vm *vm;
 	struct kvm_inject_args inject_args;
+	vm_vaddr_t args_gva;
 
 	struct test_args args = {
 		.nr_irqs = nr_irqs,
@@ -757,7 +758,9 @@ static void test_vgic(uint32_t nr_irqs, bool level_sensitive, bool eoi_split)
 	vcpu_init_descriptor_tables(vm, VCPU_ID);
 
 	/* Setup the guest args page (so it gets the args). */
-	vcpu_args_set(vm, 0, 1, args);
+	args_gva = vm_vaddr_alloc_page(vm);
+	memcpy(addr_gva2hva(vm, args_gva), &args, sizeof(args));
+	vcpu_args_set(vm, 0, 1, args_gva);
 
 	gic_fd = vgic_v3_setup(vm, 1, nr_irqs,
 			GICD_BASE_GPA, GICR_BASE_GPA);
-- 
2.34.1

[PATCH AUTOSEL 5.17 054/149] kvm: selftests: aarch64: fix the failure check in kvm_set_gsi_routing_irqchip_check

[Sasha Levin]

From: Ricardo Koller <ricarkol@google.com>

[ Upstream commit 5b7898648f02083012900e48d063e51ccbdad165 ]

kvm_set_gsi_routing_irqchip_check(expect_failure=true) is used to check
the error code returned by the kernel when trying to setup an invalid
gsi routing table. The ioctl fails if "pin >= KVM_IRQCHIP_NUM_PINS", so
kvm_set_gsi_routing_irqchip_check() should test the error only when
"intid >= KVM_IRQCHIP_NUM_PINS+32". The issue is that the test check is
"intid >= KVM_IRQCHIP_NUM_PINS", so for a case like "intid =
KVM_IRQCHIP_NUM_PINS" the test wrongly assumes that the kernel will
return an error.  Fix this by using the right check.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reported-by: Reiji Watanabe <reijiw@google.com>
Cc: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220127030858.3269036-4-ricarkol@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/aarch64/vgic_irq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/aarch64/vgic_irq.c b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
index 7f3afee5cc00..48e43e24d240 100644
--- a/tools/testing/selftests/kvm/aarch64/vgic_irq.c
+++ b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
@@ -573,8 +573,8 @@ static void kvm_set_gsi_routing_irqchip_check(struct kvm_vm *vm,
 		kvm_gsi_routing_write(vm, routing);
 	} else {
 		ret = _kvm_gsi_routing_write(vm, routing);
-		/* The kernel only checks for KVM_IRQCHIP_NUM_PINS. */
-		if (intid >= KVM_IRQCHIP_NUM_PINS)
+		/* The kernel only checks e->irqchip.pin >= KVM_IRQCHIP_NUM_PINS */
+		if (((uint64_t)intid + num - 1 - MIN_SPI) >= KVM_IRQCHIP_NUM_PINS)
 			TEST_ASSERT(ret != 0 && errno == EINVAL,
 				"Bad intid %u did not cause KVM_SET_GSI_ROUTING "
 				"error: rc: %i errno: %i", intid, ret, errno);
-- 
2.34.1

[PATCH AUTOSEL 5.17 055/149] kvm: selftests: aarch64: fix some vgic related comments

[Sasha Levin]

From: Ricardo Koller <ricarkol@google.com>

[ Upstream commit a5cd38fd9c47b23abc6df08d6ee6a71b39038185 ]

Fix the formatting of some comments and the wording of one of them (in
gicv3_access_reg).

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reported-by: Reiji Watanabe <reijiw@google.com>
Cc: Andrew Jones <drjones@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220127030858.3269036-5-ricarkol@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/aarch64/vgic_irq.c   | 12 ++++++++----
 tools/testing/selftests/kvm/lib/aarch64/gic_v3.c | 10 ++++++----
 tools/testing/selftests/kvm/lib/aarch64/vgic.c   |  3 ++-
 3 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/tools/testing/selftests/kvm/aarch64/vgic_irq.c b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
index 48e43e24d240..554ca649d470 100644
--- a/tools/testing/selftests/kvm/aarch64/vgic_irq.c
+++ b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
@@ -306,7 +306,8 @@ static void guest_restore_active(struct test_args *args,
 	uint32_t prio, intid, ap1r;
 	int i;
 
-	/* Set the priorities of the first (KVM_NUM_PRIOS - 1) IRQs
+	/*
+	 * Set the priorities of the first (KVM_NUM_PRIOS - 1) IRQs
 	 * in descending order, so intid+1 can preempt intid.
 	 */
 	for (i = 0, prio = (num - 1) * 8; i < num; i++, prio -= 8) {
@@ -315,7 +316,8 @@ static void guest_restore_active(struct test_args *args,
 		gic_set_priority(intid, prio);
 	}
 
-	/* In a real migration, KVM would restore all GIC state before running
+	/*
+	 * In a real migration, KVM would restore all GIC state before running
 	 * guest code.
 	 */
 	for (i = 0; i < num; i++) {
@@ -503,7 +505,8 @@ static void guest_code(struct test_args *args)
 		test_injection_failure(args, f);
 	}
 
-	/* Restore the active state of IRQs. This would happen when live
+	/*
+	 * Restore the active state of IRQs. This would happen when live
 	 * migrating IRQs in the middle of being handled.
 	 */
 	for_each_supported_activate_fn(args, set_active_fns, f)
@@ -844,7 +847,8 @@ int main(int argc, char **argv)
 		}
 	}
 
-	/* If the user just specified nr_irqs and/or gic_version, then run all
+	/*
+	 * If the user just specified nr_irqs and/or gic_version, then run all
 	 * combinations.
 	 */
 	if (default_args) {
diff --git a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
index e4945fe66620..263bf3ed8fd5 100644
--- a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
+++ b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
@@ -19,7 +19,7 @@ struct gicv3_data {
 	unsigned int nr_spis;
 };
 
-#define sgi_base_from_redist(redist_base) 	(redist_base + SZ_64K)
+#define sgi_base_from_redist(redist_base)	(redist_base + SZ_64K)
 #define DIST_BIT				(1U << 31)
 
 enum gicv3_intid_range {
@@ -105,7 +105,8 @@ static void gicv3_set_eoi_split(bool split)
 {
 	uint32_t val;
 
-	/* All other fields are read-only, so no need to read CTLR first. In
+	/*
+	 * All other fields are read-only, so no need to read CTLR first. In
 	 * fact, the kernel does the same.
 	 */
 	val = split ? (1U << 1) : 0;
@@ -160,8 +161,9 @@ static void gicv3_access_reg(uint32_t intid, uint64_t offset,
 
 	GUEST_ASSERT(bits_per_field <= reg_bits);
 	GUEST_ASSERT(!write || *val < (1U << bits_per_field));
-	/* Some registers like IROUTER are 64 bit long. Those are currently not
-	 * supported by readl nor writel, so just asserting here until then.
+	/*
+	 * This function does not support 64 bit accesses. Just asserting here
+	 * until we implement readq/writeq.
 	 */
 	GUEST_ASSERT(reg_bits == 32);
 
diff --git a/tools/testing/selftests/kvm/lib/aarch64/vgic.c b/tools/testing/selftests/kvm/lib/aarch64/vgic.c
index f5cd0c536d85..7c876ccf9294 100644
--- a/tools/testing/selftests/kvm/lib/aarch64/vgic.c
+++ b/tools/testing/selftests/kvm/lib/aarch64/vgic.c
@@ -152,7 +152,8 @@ static void vgic_poke_irq(int gic_fd, uint32_t intid,
 		attr += SZ_64K;
 	}
 
-	/* All calls will succeed, even with invalid intid's, as long as the
+	/*
+	 * All calls will succeed, even with invalid intid's, as long as the
 	 * addr part of the attr is within 32 bits (checked above). An invalid
 	 * intid will just make the read/writes point to above the intended
 	 * register space (i.e., ICPENDR after ISPENDR).
-- 
2.34.1

[PATCH AUTOSEL 5.17 056/149] kvm: selftests: aarch64: use a tighter assert in vgic_poke_irq()

[Sasha Levin]

From: Ricardo Koller <ricarkol@google.com>

[ Upstream commit b53de63a89244c196d8a2ea76b6754e3fdb4b626 ]

vgic_poke_irq() checks that the attr argument passed to the vgic device
ioctl is sane. Make this check tighter by moving it to after the last
attr update.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reported-by: Reiji Watanabe <reijiw@google.com>
Cc: Andrew Jones <drjones@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220127030858.3269036-6-ricarkol@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/lib/aarch64/vgic.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/kvm/lib/aarch64/vgic.c b/tools/testing/selftests/kvm/lib/aarch64/vgic.c
index 7c876ccf9294..5d45046c1b80 100644
--- a/tools/testing/selftests/kvm/lib/aarch64/vgic.c
+++ b/tools/testing/selftests/kvm/lib/aarch64/vgic.c
@@ -140,9 +140,6 @@ static void vgic_poke_irq(int gic_fd, uint32_t intid,
 	uint64_t val;
 	bool intid_is_private = INTID_IS_SGI(intid) || INTID_IS_PPI(intid);
 
-	/* Check that the addr part of the attr is within 32 bits. */
-	assert(attr <= KVM_DEV_ARM_VGIC_OFFSET_MASK);
-
 	uint32_t group = intid_is_private ? KVM_DEV_ARM_VGIC_GRP_REDIST_REGS
 					  : KVM_DEV_ARM_VGIC_GRP_DIST_REGS;
 
@@ -152,6 +149,9 @@ static void vgic_poke_irq(int gic_fd, uint32_t intid,
 		attr += SZ_64K;
 	}
 
+	/* Check that the addr part of the attr is within 32 bits. */
+	assert((attr & ~KVM_DEV_ARM_VGIC_OFFSET_MASK) == 0);
+
 	/*
 	 * All calls will succeed, even with invalid intid's, as long as the
 	 * addr part of the attr is within 32 bits (checked above). An invalid
-- 
2.34.1

[PATCH AUTOSEL 5.17 057/149] iommu/arm-smmu-v3: fix event handling soft lockup

[Sasha Levin]

From: Zhou Guanghui <zhouguanghui1@huawei.com>

[ Upstream commit 30de2b541af98179780054836b48825fcfba4408 ]

During event processing, events are read from the event queue one
by one until the queue is empty.If the master device continuously
requests address access at the same time and the SMMU generates
events, the cyclic processing of the event takes a long time and
softlockup warnings may be reported.

arm-smmu-v3 arm-smmu-v3.34.auto: event 0x0a received:
arm-smmu-v3 arm-smmu-v3.34.auto: 	0x00007f220000280a
arm-smmu-v3 arm-smmu-v3.34.auto: 	0x000010000000007e
arm-smmu-v3 arm-smmu-v3.34.auto: 	0x00000000034e8670
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [irq/268-arm-smm:247]
Call trace:
 _dev_info+0x7c/0xa0
 arm_smmu_evtq_thread+0x1c0/0x230
 irq_thread_fn+0x30/0x80
 irq_thread+0x128/0x210
 kthread+0x134/0x138
 ret_from_fork+0x10/0x1c
Kernel panic - not syncing: softlockup: hung tasks

Fix this by calling cond_resched() after the event information is
printed.

Signed-off-by: Zhou Guanghui <zhouguanghui1@huawei.com>
Link: https://lore.kernel.org/r/20220119070754.26528-1-zhouguanghui1@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 6dc6d8b6b368..f60381cdf1c4 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -1558,6 +1558,7 @@ static irqreturn_t arm_smmu_evtq_thread(int irq, void *dev)
 				dev_info(smmu->dev, "\t0x%016llx\n",
 					 (unsigned long long)evt[i]);
 
+			cond_resched();
 		}
 
 		/*
-- 
2.34.1

[PATCH AUTOSEL 5.17 058/149] usb: ehci: add pci device support for Aspeed platforms

[Sasha Levin]

From: Neal Liu <neal_liu@aspeedtech.com>

[ Upstream commit c3c9cee592828528fd228b01d312c7526c584a42 ]

Enable Aspeed quirks in commit 7f2d73788d90 ("usb: ehci:
handshake CMD_RUN instead of STS_HALT") to support Aspeed
ehci-pci device.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Link: https://lore.kernel.org/r/20220208101657.76459-1-neal_liu@aspeedtech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/host/ehci-pci.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index e87cf3a00fa4..638f03b89739 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -21,6 +21,9 @@ static const char hcd_name[] = "ehci-pci";
 /* defined here to avoid adding to pci_ids.h for single instance use */
 #define PCI_DEVICE_ID_INTEL_CE4100_USB	0x2e70
 
+#define PCI_VENDOR_ID_ASPEED		0x1a03
+#define PCI_DEVICE_ID_ASPEED_EHCI	0x2603
+
 /*-------------------------------------------------------------------------*/
 #define PCI_DEVICE_ID_INTEL_QUARK_X1000_SOC		0x0939
 static inline bool is_intel_quark_x1000(struct pci_dev *pdev)
@@ -222,6 +225,12 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
 			ehci->has_synopsys_hc_bug = 1;
 		}
 		break;
+	case PCI_VENDOR_ID_ASPEED:
+		if (pdev->device == PCI_DEVICE_ID_ASPEED_EHCI) {
+			ehci_info(ehci, "applying Aspeed HC workaround\n");
+			ehci->is_aspeed = 1;
+		}
+		break;
 	}
 
 	/* optional debug port, normally in the first BAR */
-- 
2.34.1

[PATCH AUTOSEL 5.17 059/149] KVM: arm64: Do not change the PMU event filter after a VCPU has run

[Sasha Levin]

From: Marc Zyngier <maz@kernel.org>

[ Upstream commit 5177fe91e4cf78a659aada2c9cf712db4d788481 ]

Userspace can specify which events a guest is allowed to use with the
KVM_ARM_VCPU_PMU_V3_FILTER attribute. The list of allowed events can be
identified by a guest from reading the PMCEID{0,1}_EL0 registers.

Changing the PMU event filter after a VCPU has run can cause reads of the
registers performed before the filter is changed to return different values
than reads performed with the new event filter in place. The architecture
defines the two registers as read-only, and this behaviour contradicts
that.

Keep track when the first VCPU has run and deny changes to the PMU event
filter to prevent this from happening.

Signed-off-by: Marc Zyngier <maz@kernel.org>
[ Alexandru E: Added commit message, updated ioctl documentation ]
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220127161759.53553-2-alexandru.elisei@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/virt/kvm/devices/vcpu.rst |  2 +-
 arch/arm64/include/asm/kvm_host.h       |  1 +
 arch/arm64/kvm/arm.c                    |  4 +++
 arch/arm64/kvm/pmu-emul.c               | 33 +++++++++++++++----------
 4 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/Documentation/virt/kvm/devices/vcpu.rst b/Documentation/virt/kvm/devices/vcpu.rst
index 60a29972d3f1..d063aaee5bb7 100644
--- a/Documentation/virt/kvm/devices/vcpu.rst
+++ b/Documentation/virt/kvm/devices/vcpu.rst
@@ -70,7 +70,7 @@ irqchip.
 	 -ENODEV  PMUv3 not supported or GIC not initialized
 	 -ENXIO   PMUv3 not properly configured or in-kernel irqchip not
 	 	  configured as required prior to calling this attribute
-	 -EBUSY   PMUv3 already initialized
+	 -EBUSY   PMUv3 already initialized or a VCPU has already run
 	 -EINVAL  Invalid filter range
 	 =======  ======================================================
 
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 031e3a2537fc..8234626a945a 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -136,6 +136,7 @@ struct kvm_arch {
 
 	/* Memory Tagging Extension enabled for the guest */
 	bool mte_enabled;
+	bool ran_once;
 };
 
 struct kvm_vcpu_fault_info {
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 4dca6ffd03d4..85a2a75f4498 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -634,6 +634,10 @@ int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
 	if (kvm_vm_is_protected(kvm))
 		kvm_call_hyp_nvhe(__pkvm_vcpu_init_traps, vcpu);
 
+	mutex_lock(&kvm->lock);
+	kvm->arch.ran_once = true;
+	mutex_unlock(&kvm->lock);
+
 	return ret;
 }
 
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index fbcfd4ec6f92..bc771bc1a041 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c
@@ -924,6 +924,8 @@ static bool pmu_irq_is_valid(struct kvm *kvm, int irq)
 
 int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr)
 {
+	struct kvm *kvm = vcpu->kvm;
+
 	if (!kvm_vcpu_has_pmu(vcpu))
 		return -ENODEV;
 
@@ -941,7 +943,7 @@ int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr)
 		int __user *uaddr = (int __user *)(long)attr->addr;
 		int irq;
 
-		if (!irqchip_in_kernel(vcpu->kvm))
+		if (!irqchip_in_kernel(kvm))
 			return -EINVAL;
 
 		if (get_user(irq, uaddr))
@@ -951,7 +953,7 @@ int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr)
 		if (!(irq_is_ppi(irq) || irq_is_spi(irq)))
 			return -EINVAL;
 
-		if (!pmu_irq_is_valid(vcpu->kvm, irq))
+		if (!pmu_irq_is_valid(kvm, irq))
 			return -EINVAL;
 
 		if (kvm_arm_pmu_irq_initialized(vcpu))
@@ -966,7 +968,7 @@ int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr)
 		struct kvm_pmu_event_filter filter;
 		int nr_events;
 
-		nr_events = kvm_pmu_event_mask(vcpu->kvm) + 1;
+		nr_events = kvm_pmu_event_mask(kvm) + 1;
 
 		uaddr = (struct kvm_pmu_event_filter __user *)(long)attr->addr;
 
@@ -978,12 +980,17 @@ int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr)
 		     filter.action != KVM_PMU_EVENT_DENY))
 			return -EINVAL;
 
-		mutex_lock(&vcpu->kvm->lock);
+		mutex_lock(&kvm->lock);
+
+		if (kvm->arch.ran_once) {
+			mutex_unlock(&kvm->lock);
+			return -EBUSY;
+		}
 
-		if (!vcpu->kvm->arch.pmu_filter) {
-			vcpu->kvm->arch.pmu_filter = bitmap_alloc(nr_events, GFP_KERNEL_ACCOUNT);
-			if (!vcpu->kvm->arch.pmu_filter) {
-				mutex_unlock(&vcpu->kvm->lock);
+		if (!kvm->arch.pmu_filter) {
+			kvm->arch.pmu_filter = bitmap_alloc(nr_events, GFP_KERNEL_ACCOUNT);
+			if (!kvm->arch.pmu_filter) {
+				mutex_unlock(&kvm->lock);
 				return -ENOMEM;
 			}
 
@@ -994,17 +1001,17 @@ int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr)
 			 * events, the default is to allow.
 			 */
 			if (filter.action == KVM_PMU_EVENT_ALLOW)
-				bitmap_zero(vcpu->kvm->arch.pmu_filter, nr_events);
+				bitmap_zero(kvm->arch.pmu_filter, nr_events);
 			else
-				bitmap_fill(vcpu->kvm->arch.pmu_filter, nr_events);
+				bitmap_fill(kvm->arch.pmu_filter, nr_events);
 		}
 
 		if (filter.action == KVM_PMU_EVENT_ALLOW)
-			bitmap_set(vcpu->kvm->arch.pmu_filter, filter.base_event, filter.nevents);
+			bitmap_set(kvm->arch.pmu_filter, filter.base_event, filter.nevents);
 		else
-			bitmap_clear(vcpu->kvm->arch.pmu_filter, filter.base_event, filter.nevents);
+			bitmap_clear(kvm->arch.pmu_filter, filter.base_event, filter.nevents);
 
-		mutex_unlock(&vcpu->kvm->lock);
+		mutex_unlock(&kvm->lock);
 
 		return 0;
 	}
-- 
2.34.1

[PATCH AUTOSEL 5.17 060/149] libbpf: Fix accessing syscall arguments on powerpc

[Sasha Levin]

From: Ilya Leoshkevich <iii@linux.ibm.com>

[ Upstream commit f07f1503469b11b739892d50c836992ffbe026ee ]

powerpc does not select ARCH_HAS_SYSCALL_WRAPPER, so its syscall
handlers take "unpacked" syscall arguments. Indicate this to libbpf
using PT_REGS_SYSCALL_REGS macro.

Reported-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Link: https://lore.kernel.org/bpf/20220209021745.2215452-5-iii@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/bpf_tracing.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h
index 90f56b0f585f..d40b87c0e4b9 100644
--- a/tools/lib/bpf/bpf_tracing.h
+++ b/tools/lib/bpf/bpf_tracing.h
@@ -178,6 +178,8 @@
 #define __PT_RC_REG gpr[3]
 #define __PT_SP_REG sp
 #define __PT_IP_REG nip
+/* powerpc does not select ARCH_HAS_SYSCALL_WRAPPER. */
+#define PT_REGS_SYSCALL_REGS(ctx) ctx
 
 #elif defined(bpf_target_sparc)
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 061/149] libbpf: Fix accessing the first syscall argument on arm64

[Sasha Levin]

From: Ilya Leoshkevich <iii@linux.ibm.com>

[ Upstream commit fbca4a2f649730b67488a8b36140ce4d2cf13c63 ]

On arm64, the first syscall argument should be accessed via orig_x0
(see arch/arm64/include/asm/syscall.h). Currently regs[0] is used
instead, leading to bpf_syscall_macro test failure.

orig_x0 cannot be added to struct user_pt_regs, since its layout is a
part of the ABI. Therefore provide access to it only through
PT_REGS_PARM1_CORE_SYSCALL() by using a struct pt_regs flavor.

Reported-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220209021745.2215452-10-iii@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/bpf_tracing.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h
index d40b87c0e4b9..ad62c17919cf 100644
--- a/tools/lib/bpf/bpf_tracing.h
+++ b/tools/lib/bpf/bpf_tracing.h
@@ -140,6 +140,10 @@
 
 #elif defined(bpf_target_arm64)
 
+struct pt_regs___arm64 {
+	unsigned long orig_x0;
+};
+
 /* arm64 provides struct user_pt_regs instead of struct pt_regs to userspace */
 #define __PT_REGS_CAST(x) ((const struct user_pt_regs *)(x))
 #define __PT_PARM1_REG regs[0]
@@ -152,6 +156,8 @@
 #define __PT_RC_REG regs[0]
 #define __PT_SP_REG sp
 #define __PT_IP_REG pc
+#define PT_REGS_PARM1_SYSCALL(x) ({ _Pragma("GCC error \"use PT_REGS_PARM1_CORE_SYSCALL() instead\""); 0l; })
+#define PT_REGS_PARM1_CORE_SYSCALL(x) BPF_CORE_READ((const struct pt_regs___arm64 *)(x), orig_x0)
 
 #elif defined(bpf_target_mips)
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 062/149] libbpf: Fix accessing the first syscall argument on s390

[Sasha Levin]

From: Ilya Leoshkevich <iii@linux.ibm.com>

[ Upstream commit 1f22a6f9f9a0f50218a11a0554709fd34a821fa3 ]

On s390, the first syscall argument should be accessed via orig_gpr2
(see arch/s390/include/asm/syscall.h). Currently gpr[2] is used
instead, leading to bpf_syscall_macro test failure.

orig_gpr2 cannot be added to user_pt_regs, since its layout is a part
of the ABI. Therefore provide access to it only through
PT_REGS_PARM1_CORE_SYSCALL() by using a struct pt_regs flavor.

Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220209021745.2215452-11-iii@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/bpf_tracing.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h
index ad62c17919cf..92bf90e716ea 100644
--- a/tools/lib/bpf/bpf_tracing.h
+++ b/tools/lib/bpf/bpf_tracing.h
@@ -112,6 +112,10 @@
 
 #elif defined(bpf_target_s390)
 
+struct pt_regs___s390 {
+	unsigned long orig_gpr2;
+};
+
 /* s390 provides user_pt_regs instead of struct pt_regs to userspace */
 #define __PT_REGS_CAST(x) ((const user_pt_regs *)(x))
 #define __PT_PARM1_REG gprs[2]
@@ -124,6 +128,8 @@
 #define __PT_RC_REG gprs[2]
 #define __PT_SP_REG gprs[15]
 #define __PT_IP_REG psw.addr
+#define PT_REGS_PARM1_SYSCALL(x) ({ _Pragma("GCC error \"use PT_REGS_PARM1_CORE_SYSCALL() instead\""); 0l; })
+#define PT_REGS_PARM1_CORE_SYSCALL(x) BPF_CORE_READ((const struct pt_regs___s390 *)(x), orig_gpr2)
 
 #elif defined(bpf_target_arm)
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 063/149] PCI: endpoint: Fix alignment fault error in copy tests

[Sasha Levin]

From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>

[ Upstream commit 829cc0e2ea2d61fb6c54bc3f8a17f86c56e11864 ]

The copy test uses the memcpy() to copy data between IO memory spaces.
This can trigger an alignment fault error (pasted the error logs below)
because memcpy() may use unaligned accesses on a mapped memory that is
just IO, which does not support unaligned memory accesses.

Fix it by using the correct memcpy API to copy from/to IO memory.

Alignment fault error logs:
   Unable to handle kernel paging request at virtual address ffff8000101cd3c1
   Mem abort info:
     ESR = 0x96000021
     EC = 0x25: DABT (current EL), IL = 32 bits
     SET = 0, FnV = 0
     EA = 0, S1PTW = 0
     FSC = 0x21: alignment fault
   Data abort info:
     ISV = 0, ISS = 0x00000021
     CM = 0, WnR = 0
   swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000081773000
   [ffff8000101cd3c1] pgd=1000000082410003, p4d=1000000082410003, pud=1000000082411003, pmd=1000000082412003, pte=0068004000001f13
   Internal error: Oops: 96000021 [#1] PREEMPT SMP
   Modules linked in:
   CPU: 0 PID: 6 Comm: kworker/0:0H Not tainted 5.15.0-rc1-next-20210914-dirty #2
   Hardware name: LS1012A RDB Board (DT)
   Workqueue: kpcitest pci_epf_test_cmd_handler
   pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
   pc : __memcpy+0x168/0x230
   lr : pci_epf_test_cmd_handler+0x6f0/0xa68
   sp : ffff80001003bce0
   x29: ffff80001003bce0 x28: ffff800010135000 x27: ffff8000101e5000
   x26: ffff8000101cd000 x25: ffff6cda941cf6c8 x24: 0000000000000000
   x23: ffff6cda863f2000 x22: ffff6cda9096c800 x21: ffff800010135000
   x20: ffff6cda941cf680 x19: ffffaf39fd999000 x18: 0000000000000000
   x17: 0000000000000000 x16: 0000000000000000 x15: ffffaf39fd2b6000
   x14: 0000000000000000 x13: 15f5c8fa2f984d57 x12: 604d132b60275454
   x11: 065cee5e5fb428b6 x10: aae662eb17d0cf3e x9 : 1d97c9a1b4ddef37
   x8 : 7541b65edebf928c x7 : e71937c4fc595de0 x6 : b8a0e09562430d1c
   x5 : ffff8000101e5401 x4 : ffff8000101cd401 x3 : ffff8000101e5380
   x2 : fffffffffffffff1 x1 : ffff8000101cd3c0 x0 : ffff8000101e5000
   Call trace:
    __memcpy+0x168/0x230
    process_one_work+0x1ec/0x370
    worker_thread+0x44/0x478
    kthread+0x154/0x160
    ret_from_fork+0x10/0x20
   Code: a984346c a9c4342c f1010042 54fffee8 (a97c3c8e)
   ---[ end trace 568c28c7b6336335 ]---

Link: https://lore.kernel.org/r/20211217094708.28678-1-Zhiqiang.Hou@nxp.com
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/endpoint/functions/pci-epf-test.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 90d84d3bc868..c7e45633beaf 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -285,7 +285,17 @@ static int pci_epf_test_copy(struct pci_epf_test *epf_test)
 		if (ret)
 			dev_err(dev, "Data transfer failed\n");
 	} else {
-		memcpy(dst_addr, src_addr, reg->size);
+		void *buf;
+
+		buf = kzalloc(reg->size, GFP_KERNEL);
+		if (!buf) {
+			ret = -ENOMEM;
+			goto err_map_addr;
+		}
+
+		memcpy_fromio(buf, src_addr, reg->size);
+		memcpy_toio(dst_addr, buf, reg->size);
+		kfree(buf);
 	}
 	ktime_get_ts64(&end);
 	pci_epf_test_print_rate("COPY", reg->size, &start, &end, use_dma);
-- 
2.34.1

[PATCH AUTOSEL 5.17 064/149] tcp: Don't acquire inet_listen_hashbucket::lock with disabled BH.

[Sasha Levin]

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

[ Upstream commit 4f9bf2a2f5aacf988e6d5e56b961ba45c5a25248 ]

Commit
   9652dc2eb9e40 ("tcp: relax listening_hash operations")

removed the need to disable bottom half while acquiring
listening_hash.lock. There are still two callers left which disable
bottom half before the lock is acquired.

On PREEMPT_RT the softirqs are preemptible and local_bh_disable() acts
as a lock to ensure that resources, that are protected by disabling
bottom halves, remain protected.
This leads to a circular locking dependency if the lock acquired with
disabled bottom halves is also acquired with enabled bottom halves
followed by disabling bottom halves. This is the reverse locking order.
It has been observed with inet_listen_hashbucket::lock:

local_bh_disable() + spin_lock(&ilb->lock):
  inet_listen()
    inet_csk_listen_start()
      sk->sk_prot->hash() := inet_hash()
	local_bh_disable()
	__inet_hash()
	  spin_lock(&ilb->lock);
	    acquire(&ilb->lock);

Reverse order: spin_lock(&ilb2->lock) + local_bh_disable():
  tcp_seq_next()
    listening_get_next()
      spin_lock(&ilb2->lock);
	acquire(&ilb2->lock);

  tcp4_seq_show()
    get_tcp4_sock()
      sock_i_ino()
	read_lock_bh(&sk->sk_callback_lock);
	  acquire(softirq_ctrl)	// <---- whoops
	  acquire(&sk->sk_callback_lock)

Drop local_bh_disable() around __inet_hash() which acquires
listening_hash->lock. Split inet_unhash() and acquire the
listen_hashbucket lock without disabling bottom halves; the inet_ehash
lock with disabled bottom halves.

Reported-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lkml.kernel.org/r/12d6f9879a97cd56c09fb53dee343cbb14f7f1f7.camel@gmx.de
Link: https://lkml.kernel.org/r/X9CheYjuXWc75Spa@hirez.programming.kicks-ass.net
Link: https://lore.kernel.org/r/YgQOebeZ10eNx1W6@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/inet_hashtables.c  | 53 ++++++++++++++++++++++---------------
 net/ipv6/inet6_hashtables.c |  5 +---
 2 files changed, 33 insertions(+), 25 deletions(-)

diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 30ab717ff1b8..17440840a791 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -637,7 +637,9 @@ int __inet_hash(struct sock *sk, struct sock *osk)
 	int err = 0;
 
 	if (sk->sk_state != TCP_LISTEN) {
+		local_bh_disable();
 		inet_ehash_nolisten(sk, osk, NULL);
+		local_bh_enable();
 		return 0;
 	}
 	WARN_ON(!sk_unhashed(sk));
@@ -669,45 +671,54 @@ int inet_hash(struct sock *sk)
 {
 	int err = 0;
 
-	if (sk->sk_state != TCP_CLOSE) {
-		local_bh_disable();
+	if (sk->sk_state != TCP_CLOSE)
 		err = __inet_hash(sk, NULL);
-		local_bh_enable();
-	}
 
 	return err;
 }
 EXPORT_SYMBOL_GPL(inet_hash);
 
-void inet_unhash(struct sock *sk)
+static void __inet_unhash(struct sock *sk, struct inet_listen_hashbucket *ilb)
 {
-	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
-	struct inet_listen_hashbucket *ilb = NULL;
-	spinlock_t *lock;
-
 	if (sk_unhashed(sk))
 		return;
 
-	if (sk->sk_state == TCP_LISTEN) {
-		ilb = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)];
-		lock = &ilb->lock;
-	} else {
-		lock = inet_ehash_lockp(hashinfo, sk->sk_hash);
-	}
-	spin_lock_bh(lock);
-	if (sk_unhashed(sk))
-		goto unlock;
-
 	if (rcu_access_pointer(sk->sk_reuseport_cb))
 		reuseport_stop_listen_sock(sk);
 	if (ilb) {
+		struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
+
 		inet_unhash2(hashinfo, sk);
 		ilb->count--;
 	}
 	__sk_nulls_del_node_init_rcu(sk);
 	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
-unlock:
-	spin_unlock_bh(lock);
+}
+
+void inet_unhash(struct sock *sk)
+{
+	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
+
+	if (sk_unhashed(sk))
+		return;
+
+	if (sk->sk_state == TCP_LISTEN) {
+		struct inet_listen_hashbucket *ilb;
+
+		ilb = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)];
+		/* Don't disable bottom halves while acquiring the lock to
+		 * avoid circular locking dependency on PREEMPT_RT.
+		 */
+		spin_lock(&ilb->lock);
+		__inet_unhash(sk, ilb);
+		spin_unlock(&ilb->lock);
+	} else {
+		spinlock_t *lock = inet_ehash_lockp(hashinfo, sk->sk_hash);
+
+		spin_lock_bh(lock);
+		__inet_unhash(sk, NULL);
+		spin_unlock_bh(lock);
+	}
 }
 EXPORT_SYMBOL_GPL(inet_unhash);
 
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 4514444e96c8..4740afecf7c6 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -333,11 +333,8 @@ int inet6_hash(struct sock *sk)
 {
 	int err = 0;
 
-	if (sk->sk_state != TCP_CLOSE) {
-		local_bh_disable();
+	if (sk->sk_state != TCP_CLOSE)
 		err = __inet_hash(sk, NULL);
-		local_bh_enable();
-	}
 
 	return err;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 065/149] PCI: pciehp: Add Qualcomm quirk for Command Completed erratum

[Sasha Levin]

From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

[ Upstream commit 9f72d4757cbe4d1ed669192f6d23817c9e437c4b ]

The Qualcomm PCI bridge device (Device ID 0x0110) found in chipsets such as
SM8450 does not set the Command Completed bit unless writes to the Slot
Command register change "Control" bits.

This results in timeouts like below:

  pcieport 0001:00:00.0: pciehp: Timeout on hotplug command 0x03c0 (issued 2020 msec ago)

Add the device to the Command Completed quirk to mark commands "completed"
immediately unless they change the "Control" bits.

Link: https://lore.kernel.org/r/20220210145003.135907-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/hotplug/pciehp_hpc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 1c1ebf3dad43..4e4ccf3afbe3 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -1084,6 +1084,8 @@ static void quirk_cmd_compl(struct pci_dev *pdev)
 }
 DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
 			      PCI_CLASS_BRIDGE_PCI, 8, quirk_cmd_compl);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_QCOM, 0x0110,
+			      PCI_CLASS_BRIDGE_PCI, 8, quirk_cmd_compl);
 DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_QCOM, 0x0400,
 			      PCI_CLASS_BRIDGE_PCI, 8, quirk_cmd_compl);
 DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_QCOM, 0x0401,
-- 
2.34.1

[PATCH AUTOSEL 5.17 066/149] scsi: mpi3mr: Fix deadlock while canceling the fw event

[Sasha Levin]

From: Sreekanth Reddy <sreekanth.reddy@broadcom.com>

[ Upstream commit 580e6742205efe6b0bfa5a6a6079f509d99168e0 ]

During controller reset, the driver tries to flush all the pending firmware
event works from worker queue that are queued prior to the reset. However,
if any work is waiting for device addition/removal operation to be
completed at the SML, then a deadlock is observed. This is due to the
controller reset waiting for the device addition/removal to be completed
and the device/addition removal is waiting for the controller reset to be
completed.

To limit this deadlock, continue with the controller reset handling without
canceling the work which is waiting for device addition/removal operation
to complete at SML.

Link: https://lore.kernel.org/r/20220210095817.22828-2-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpi3mr/mpi3mr.h    |   4 ++
 drivers/scsi/mpi3mr/mpi3mr_fw.c |   2 +-
 drivers/scsi/mpi3mr/mpi3mr_os.c | 106 ++++++++++++++++++++++++++------
 3 files changed, 91 insertions(+), 21 deletions(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h
index fc4eaf6d1e47..d892ade421bf 100644
--- a/drivers/scsi/mpi3mr/mpi3mr.h
+++ b/drivers/scsi/mpi3mr/mpi3mr.h
@@ -866,6 +866,8 @@ struct mpi3mr_ioc {
  * @send_ack: Event acknowledgment required or not
  * @process_evt: Bottomhalf processing required or not
  * @evt_ctx: Event context to send in Ack
+ * @pending_at_sml: waiting for device add/remove API to complete
+ * @discard: discard this event
  * @ref_count: kref count
  * @event_data: Actual MPI3 event data
  */
@@ -877,6 +879,8 @@ struct mpi3mr_fwevt {
 	bool send_ack;
 	bool process_evt;
 	u32 evt_ctx;
+	bool pending_at_sml;
+	bool discard;
 	struct kref ref_count;
 	char event_data[0] __aligned(4);
 };
diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index 15bdc21ead66..7193b983ee3b 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -4353,8 +4353,8 @@ int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc,
 	memset(mrioc->devrem_bitmap, 0, mrioc->devrem_bitmap_sz);
 	memset(mrioc->removepend_bitmap, 0, mrioc->dev_handle_bitmap_sz);
 	memset(mrioc->evtack_cmds_bitmap, 0, mrioc->evtack_cmds_bitmap_sz);
-	mpi3mr_cleanup_fwevt_list(mrioc);
 	mpi3mr_flush_host_io(mrioc);
+	mpi3mr_cleanup_fwevt_list(mrioc);
 	mpi3mr_invalidate_devhandles(mrioc);
 	if (mrioc->prepare_for_reset) {
 		mrioc->prepare_for_reset = 0;
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 284117da9086..d205354be63a 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -285,6 +285,35 @@ static struct mpi3mr_fwevt *mpi3mr_dequeue_fwevt(
 	return fwevt;
 }
 
+/**
+ * mpi3mr_cancel_work - cancel firmware event
+ * @fwevt: fwevt object which needs to be canceled
+ *
+ * Return: Nothing.
+ */
+static void mpi3mr_cancel_work(struct mpi3mr_fwevt *fwevt)
+{
+	/*
+	 * Wait on the fwevt to complete. If this returns 1, then
+	 * the event was never executed.
+	 *
+	 * If it did execute, we wait for it to finish, and the put will
+	 * happen from mpi3mr_process_fwevt()
+	 */
+	if (cancel_work_sync(&fwevt->work)) {
+		/*
+		 * Put fwevt reference count after
+		 * dequeuing it from worker queue
+		 */
+		mpi3mr_fwevt_put(fwevt);
+		/*
+		 * Put fwevt reference count to neutralize
+		 * kref_init increment
+		 */
+		mpi3mr_fwevt_put(fwevt);
+	}
+}
+
 /**
  * mpi3mr_cleanup_fwevt_list - Cleanup firmware event list
  * @mrioc: Adapter instance reference
@@ -302,28 +331,25 @@ void mpi3mr_cleanup_fwevt_list(struct mpi3mr_ioc *mrioc)
 	    !mrioc->fwevt_worker_thread)
 		return;
 
-	while ((fwevt = mpi3mr_dequeue_fwevt(mrioc)) ||
-	    (fwevt = mrioc->current_event)) {
+	while ((fwevt = mpi3mr_dequeue_fwevt(mrioc)))
+		mpi3mr_cancel_work(fwevt);
+
+	if (mrioc->current_event) {
+		fwevt = mrioc->current_event;
 		/*
-		 * Wait on the fwevt to complete. If this returns 1, then
-		 * the event was never executed, and we need a put for the
-		 * reference the work had on the fwevt.
-		 *
-		 * If it did execute, we wait for it to finish, and the put will
-		 * happen from mpi3mr_process_fwevt()
+		 * Don't call cancel_work_sync() API for the
+		 * fwevt work if the controller reset is
+		 * get called as part of processing the
+		 * same fwevt work (or) when worker thread is
+		 * waiting for device add/remove APIs to complete.
+		 * Otherwise we will see deadlock.
 		 */
-		if (cancel_work_sync(&fwevt->work)) {
-			/*
-			 * Put fwevt reference count after
-			 * dequeuing it from worker queue
-			 */
-			mpi3mr_fwevt_put(fwevt);
-			/*
-			 * Put fwevt reference count to neutralize
-			 * kref_init increment
-			 */
-			mpi3mr_fwevt_put(fwevt);
+		if (current_work() == &fwevt->work || fwevt->pending_at_sml) {
+			fwevt->discard = 1;
+			return;
 		}
+
+		mpi3mr_cancel_work(fwevt);
 	}
 }
 
@@ -690,6 +716,24 @@ static struct mpi3mr_tgt_dev  *__mpi3mr_get_tgtdev_from_tgtpriv(
 	return tgtdev;
 }
 
+/**
+ * mpi3mr_print_device_event_notice - print notice related to post processing of
+ *					device event after controller reset.
+ *
+ * @mrioc: Adapter instance reference
+ * @device_add: true for device add event and false for device removal event
+ *
+ * Return: None.
+ */
+static void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc,
+	bool device_add)
+{
+	ioc_notice(mrioc, "Device %s was in progress before the reset and\n",
+	    (device_add ? "addition" : "removal"));
+	ioc_notice(mrioc, "completed after reset, verify whether the exposed devices\n");
+	ioc_notice(mrioc, "are matched with attached devices for correctness\n");
+}
+
 /**
  * mpi3mr_remove_tgtdev_from_host - Remove dev from upper layers
  * @mrioc: Adapter instance reference
@@ -714,8 +758,17 @@ static void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
 	}
 
 	if (tgtdev->starget) {
+		if (mrioc->current_event)
+			mrioc->current_event->pending_at_sml = 1;
 		scsi_remove_target(&tgtdev->starget->dev);
 		tgtdev->host_exposed = 0;
+		if (mrioc->current_event) {
+			mrioc->current_event->pending_at_sml = 0;
+			if (mrioc->current_event->discard) {
+				mpi3mr_print_device_event_notice(mrioc, false);
+				return;
+			}
+		}
 	}
 	ioc_info(mrioc, "%s :Removed handle(0x%04x), wwid(0x%016llx)\n",
 	    __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid);
@@ -749,11 +802,20 @@ static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc,
 	}
 	if (!tgtdev->host_exposed && !mrioc->reset_in_progress) {
 		tgtdev->host_exposed = 1;
+		if (mrioc->current_event)
+			mrioc->current_event->pending_at_sml = 1;
 		scsi_scan_target(&mrioc->shost->shost_gendev, 0,
 		    tgtdev->perst_id,
 		    SCAN_WILD_CARD, SCSI_SCAN_INITIAL);
 		if (!tgtdev->starget)
 			tgtdev->host_exposed = 0;
+		if (mrioc->current_event) {
+			mrioc->current_event->pending_at_sml = 0;
+			if (mrioc->current_event->discard) {
+				mpi3mr_print_device_event_notice(mrioc, true);
+				goto out;
+			}
+		}
 	}
 out:
 	if (tgtdev)
@@ -1193,6 +1255,8 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc,
 	mpi3mr_sastopochg_evt_debug(mrioc, event_data);
 
 	for (i = 0; i < event_data->num_entries; i++) {
+		if (fwevt->discard)
+			return;
 		handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle);
 		if (!handle)
 			continue;
@@ -1324,6 +1388,8 @@ static void mpi3mr_pcietopochg_evt_bh(struct mpi3mr_ioc *mrioc,
 	mpi3mr_pcietopochg_evt_debug(mrioc, event_data);
 
 	for (i = 0; i < event_data->num_entries; i++) {
+		if (fwevt->discard)
+			return;
 		handle =
 		    le16_to_cpu(event_data->port_entry[i].attached_dev_handle);
 		if (!handle)
@@ -1362,8 +1428,8 @@ static void mpi3mr_pcietopochg_evt_bh(struct mpi3mr_ioc *mrioc,
 static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc,
 	struct mpi3mr_fwevt *fwevt)
 {
-	mrioc->current_event = fwevt;
 	mpi3mr_fwevt_del_from_list(mrioc, fwevt);
+	mrioc->current_event = fwevt;
 
 	if (mrioc->stop_drv_processing)
 		goto out;
-- 
2.34.1

[PATCH AUTOSEL 5.17 067/149] scsi: mpi3mr: Fix reporting of actual data transfer size

[Sasha Levin]

From: Sreekanth Reddy <sreekanth.reddy@broadcom.com>

[ Upstream commit 9992246127246a27cc7184f05cce6f62ac48f84e ]

The driver is missing to set the residual size while completing an
I/O. Ensure proper data transfer size is reported to the kernel on I/O
completion based on the transfer length reported by the firmware.

Link: https://lore.kernel.org/r/20220210095817.22828-7-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpi3mr/mpi3mr_os.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index d205354be63a..f7893de35b26 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -2617,6 +2617,8 @@ void mpi3mr_process_op_reply_desc(struct mpi3mr_ioc *mrioc,
 		scmd->result = DID_OK << 16;
 		goto out_success;
 	}
+
+	scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_count);
 	if (ioc_status == MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN &&
 	    xfer_count == 0 && (scsi_status == MPI3_SCSI_STATUS_BUSY ||
 	    scsi_status == MPI3_SCSI_STATUS_RESERVATION_CONFLICT ||
-- 
2.34.1

[PATCH AUTOSEL 5.17 068/149] scsi: mpi3mr: Fix memory leaks

[Sasha Levin]

From: Sreekanth Reddy <sreekanth.reddy@broadcom.com>

[ Upstream commit d44b5fefb22e139408ae12b864da1ecb9ad9d1d2 ]

Fix memory leaks related to operational reply queue's memory segments which
are not getting freed while unloading the driver.

Link: https://lore.kernel.org/r/20220210095817.22828-9-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpi3mr/mpi3mr_fw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index 7193b983ee3b..e44868230197 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -1520,7 +1520,7 @@ static void mpi3mr_free_op_req_q_segments(struct mpi3mr_ioc *mrioc, u16 q_idx)
 			    MPI3MR_MAX_SEG_LIST_SIZE,
 			    mrioc->req_qinfo[q_idx].q_segment_list,
 			    mrioc->req_qinfo[q_idx].q_segment_list_dma);
-			mrioc->op_reply_qinfo[q_idx].q_segment_list = NULL;
+			mrioc->req_qinfo[q_idx].q_segment_list = NULL;
 		}
 	} else
 		size = mrioc->req_qinfo[q_idx].segment_qd *
-- 
2.34.1

[PATCH AUTOSEL 5.17 069/149] powerpc/set_memory: Avoid spinlock recursion in change_page_attr()

[Sasha Levin]

From: Christophe Leroy <christophe.leroy@csgroup.eu>

[ Upstream commit a4c182ecf33584b9b2d1aa9dad073014a504c01f ]

Commit 1f9ad21c3b38 ("powerpc/mm: Implement set_memory() routines")
included a spin_lock() to change_page_attr() in order to
safely perform the three step operations. But then
commit 9f7853d7609d ("powerpc/mm: Fix set_memory_*() against
concurrent accesses") modify it to use pte_update() and do
the operation safely against concurrent access.

In the meantime, Maxime reported some spinlock recursion.

[   15.351649] BUG: spinlock recursion on CPU#0, kworker/0:2/217
[   15.357540]  lock: init_mm+0x3c/0x420, .magic: dead4ead, .owner: kworker/0:2/217, .owner_cpu: 0
[   15.366563] CPU: 0 PID: 217 Comm: kworker/0:2 Not tainted 5.15.0+ #523
[   15.373350] Workqueue: events do_free_init
[   15.377615] Call Trace:
[   15.380232] [e4105ac0] [800946a4] do_raw_spin_lock+0xf8/0x120 (unreliable)
[   15.387340] [e4105ae0] [8001f4ec] change_page_attr+0x40/0x1d4
[   15.393413] [e4105b10] [801424e0] __apply_to_page_range+0x164/0x310
[   15.400009] [e4105b60] [80169620] free_pcp_prepare+0x1e4/0x4a0
[   15.406045] [e4105ba0] [8016c5a0] free_unref_page+0x40/0x2b8
[   15.411979] [e4105be0] [8018724c] kasan_depopulate_vmalloc_pte+0x6c/0x94
[   15.418989] [e4105c00] [801424e0] __apply_to_page_range+0x164/0x310
[   15.425451] [e4105c50] [80187834] kasan_release_vmalloc+0xbc/0x134
[   15.431898] [e4105c70] [8015f7a8] __purge_vmap_area_lazy+0x4e4/0xdd8
[   15.438560] [e4105d30] [80160d10] _vm_unmap_aliases.part.0+0x17c/0x24c
[   15.445283] [e4105d60] [801642d0] __vunmap+0x2f0/0x5c8
[   15.450684] [e4105db0] [800e32d0] do_free_init+0x68/0x94
[   15.456181] [e4105dd0] [8005d094] process_one_work+0x4bc/0x7b8
[   15.462283] [e4105e90] [8005d614] worker_thread+0x284/0x6e8
[   15.468227] [e4105f00] [8006aaec] kthread+0x1f0/0x210
[   15.473489] [e4105f40] [80017148] ret_from_kernel_thread+0x14/0x1c

Remove the read / modify / write sequence to make the operation atomic
and remove the spin_lock() in change_page_attr().

To do the operation atomically, we can't use pte modification helpers
anymore. Because all platforms have different combination of bits, it
is not easy to use those bits directly. But all have the
_PAGE_KERNEL_{RO/ROX/RW/RWX} set of flags. All we need it to compare
two sets to know which bits are set or cleared.

For instance, by comparing _PAGE_KERNEL_ROX and _PAGE_KERNEL_RO you
know which bit gets cleared and which bit get set when changing exec
permission.

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/all/20211212112152.GA27070@sakura/
Link: https://lore.kernel.org/r/43c3c76a1175ae6dc1a3d3b5c3f7ecb48f683eea.1640344012.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/mm/pageattr.c | 32 +++++++++++++-------------------
 1 file changed, 13 insertions(+), 19 deletions(-)

diff --git a/arch/powerpc/mm/pageattr.c b/arch/powerpc/mm/pageattr.c
index edea388e9d3f..8812454e70ff 100644
--- a/arch/powerpc/mm/pageattr.c
+++ b/arch/powerpc/mm/pageattr.c
@@ -15,12 +15,14 @@
 #include <asm/pgtable.h>
 
 
+static pte_basic_t pte_update_delta(pte_t *ptep, unsigned long addr,
+				    unsigned long old, unsigned long new)
+{
+	return pte_update(&init_mm, addr, ptep, old & ~new, new & ~old, 0);
+}
+
 /*
- * Updates the attributes of a page in three steps:
- *
- * 1. take the page_table_lock
- * 2. install the new entry with the updated attributes
- * 3. flush the TLB
+ * Updates the attributes of a page atomically.
  *
  * This sequence is safe against concurrent updates, and also allows updating the
  * attributes of a page currently being executed or accessed.
@@ -28,41 +30,33 @@
 static int change_page_attr(pte_t *ptep, unsigned long addr, void *data)
 {
 	long action = (long)data;
-	pte_t pte;
-
-	spin_lock(&init_mm.page_table_lock);
-
-	pte = ptep_get(ptep);
 
-	/* modify the PTE bits as desired, then apply */
+	/* modify the PTE bits as desired */
 	switch (action) {
 	case SET_MEMORY_RO:
-		pte = pte_wrprotect(pte);
+		/* Don't clear DIRTY bit */
+		pte_update_delta(ptep, addr, _PAGE_KERNEL_RW & ~_PAGE_DIRTY, _PAGE_KERNEL_RO);
 		break;
 	case SET_MEMORY_RW:
-		pte = pte_mkwrite(pte_mkdirty(pte));
+		pte_update_delta(ptep, addr, _PAGE_KERNEL_RO, _PAGE_KERNEL_RW);
 		break;
 	case SET_MEMORY_NX:
-		pte = pte_exprotect(pte);
+		pte_update_delta(ptep, addr, _PAGE_KERNEL_ROX, _PAGE_KERNEL_RO);
 		break;
 	case SET_MEMORY_X:
-		pte = pte_mkexec(pte);
+		pte_update_delta(ptep, addr, _PAGE_KERNEL_RO, _PAGE_KERNEL_ROX);
 		break;
 	default:
 		WARN_ON_ONCE(1);
 		break;
 	}
 
-	pte_update(&init_mm, addr, ptep, ~0UL, pte_val(pte), 0);
-
 	/* See ptesync comment in radix__set_pte_at() */
 	if (radix_enabled())
 		asm volatile("ptesync": : :"memory");
 
 	flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
 
-	spin_unlock(&init_mm.page_table_lock);
-
 	return 0;
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 070/149] power: supply: axp288-charger: Set Vhold to 4.4V

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 5ac121b81b4051e7fc83d5b3456a5e499d5bd147 ]

The AXP288's recommended and factory default Vhold value (minimum
input voltage below which the input current draw will be reduced)
is 4.4V. This lines up with other charger IC's such as the TI
bq2419x/bq2429x series which use 4.36V or 4.44V.

For some reason some BIOS-es initialize Vhold to 4.6V or even 4.7V
which combined with the typical voltage drop over typically low
wire gauge micro-USB cables leads to the input-current getting
capped below 1A (with a 2A capable dedicated charger) based on Vhold.

This leads to slow charging, or even to the device slowly discharging
if the device is in heavy use.

As the Linux AXP288 drivers use the builtin BC1.2 charger detection
and send the input-current-limit according to the detected charger
there really is no reason not to use the recommended 4.4V Vhold.

Set Vhold to 4.4V to fix the slow charging issue on various devices.

There is one exception, the special-case of the HP X2 2-in-1s which
combine this BC1.2 capable PMIC with a Type-C port and a 5V/3A factory
provided charger with a Type-C plug which does not do BC1.2. These
have their input-current-limit hardcoded to 3A (like under Windows)
and use a higher Vhold on purpose to limit the current when used
with other chargers. To avoid touching Vhold on these HP X2 laptops
the code setting Vhold is added to an else branch of the if checking
for these models.

Note this also fixes the sofar unused VBUS_ISPOUT_VHOLD_SET_MASK
define, which was wrong.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/axp288_charger.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/power/supply/axp288_charger.c b/drivers/power/supply/axp288_charger.c
index ec41f6cd3f93..c498e62ab4e2 100644
--- a/drivers/power/supply/axp288_charger.c
+++ b/drivers/power/supply/axp288_charger.c
@@ -42,11 +42,11 @@
 #define VBUS_ISPOUT_CUR_LIM_1500MA	0x1	/* 1500mA */
 #define VBUS_ISPOUT_CUR_LIM_2000MA	0x2	/* 2000mA */
 #define VBUS_ISPOUT_CUR_NO_LIM		0x3	/* 2500mA */
-#define VBUS_ISPOUT_VHOLD_SET_MASK	0x31
+#define VBUS_ISPOUT_VHOLD_SET_MASK	0x38
 #define VBUS_ISPOUT_VHOLD_SET_BIT_POS	0x3
 #define VBUS_ISPOUT_VHOLD_SET_OFFSET	4000	/* 4000mV */
 #define VBUS_ISPOUT_VHOLD_SET_LSB_RES	100	/* 100mV */
-#define VBUS_ISPOUT_VHOLD_SET_4300MV	0x3	/* 4300mV */
+#define VBUS_ISPOUT_VHOLD_SET_4400MV	0x4	/* 4400mV */
 #define VBUS_ISPOUT_VBUS_PATH_DIS	BIT(7)
 
 #define CHRG_CCCV_CC_MASK		0xf		/* 4 bits */
@@ -769,6 +769,16 @@ static int charger_init_hw_regs(struct axp288_chrg_info *info)
 		ret = axp288_charger_vbus_path_select(info, true);
 		if (ret < 0)
 			return ret;
+	} else {
+		/* Set Vhold to the factory default / recommended 4.4V */
+		val = VBUS_ISPOUT_VHOLD_SET_4400MV << VBUS_ISPOUT_VHOLD_SET_BIT_POS;
+		ret = regmap_update_bits(info->regmap, AXP20X_VBUS_IPSOUT_MGMT,
+					 VBUS_ISPOUT_VHOLD_SET_MASK, val);
+		if (ret < 0) {
+			dev_err(&info->pdev->dev, "register(%x) write error(%d)\n",
+				AXP20X_VBUS_IPSOUT_MGMT, ret);
+			return ret;
+		}
 	}
 
 	/* Read current charge voltage and current limit */
-- 
2.34.1

[PATCH AUTOSEL 5.17 071/149] drm/sprd: fix potential NULL dereference

[Sasha Levin]

From: Kevin Tang <kevin3.tang@gmail.com>

[ Upstream commit 8668658aebb0a19d877d5a81c004baf716c4aaa6 ]

'drm' could be null in sprd_drm_shutdown, and drm_warn maybe dereference
it, remove this warning log.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kevin Tang <kevin3.tang@gmail.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/all/20220117084044.9210-1-kevin3.tang@gmail.com

v1 -> v2:
- Split checking platform_get_resource() return value to a separate patch
- Use dev_warn() instead of removing the warning log

Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sprd/sprd_drm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sprd/sprd_drm.c b/drivers/gpu/drm/sprd/sprd_drm.c
index a077e2d4d721..af2be97d5ed0 100644
--- a/drivers/gpu/drm/sprd/sprd_drm.c
+++ b/drivers/gpu/drm/sprd/sprd_drm.c
@@ -155,7 +155,7 @@ static void sprd_drm_shutdown(struct platform_device *pdev)
 	struct drm_device *drm = platform_get_drvdata(pdev);
 
 	if (!drm) {
-		drm_warn(drm, "drm device is not available, no shutdown\n");
+		dev_warn(&pdev->dev, "drm device is not available, no shutdown\n");
 		return;
 	}
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 072/149] drm/sprd: check the platform_get_resource() return value

[Sasha Levin]

From: Kevin Tang <kevin3.tang@gmail.com>

[ Upstream commit 73792e6e66be1225837cc1a40f1e39b1d077751c ]

platform_get_resource() may fail and return NULL, so check it's value
before using it.

Reported-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Kevin Tang <kevin3.tang@gmail.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/all/20220117084156.9338-1-kevin3.tang@gmail.com

v1 -> v2:
- new patch

Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sprd/sprd_dpu.c | 5 +++++
 drivers/gpu/drm/sprd/sprd_dsi.c | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/sprd/sprd_dpu.c b/drivers/gpu/drm/sprd/sprd_dpu.c
index 06a3414ee43a..1637203ea103 100644
--- a/drivers/gpu/drm/sprd/sprd_dpu.c
+++ b/drivers/gpu/drm/sprd/sprd_dpu.c
@@ -790,6 +790,11 @@ static int sprd_dpu_context_init(struct sprd_dpu *dpu,
 	int ret;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "failed to get I/O resource\n");
+		return -EINVAL;
+	}
+
 	ctx->base = devm_ioremap(dev, res->start, resource_size(res));
 	if (!ctx->base) {
 		dev_err(dev, "failed to map dpu registers\n");
diff --git a/drivers/gpu/drm/sprd/sprd_dsi.c b/drivers/gpu/drm/sprd/sprd_dsi.c
index 911b3cddc264..12b67a5d5923 100644
--- a/drivers/gpu/drm/sprd/sprd_dsi.c
+++ b/drivers/gpu/drm/sprd/sprd_dsi.c
@@ -907,6 +907,11 @@ static int sprd_dsi_context_init(struct sprd_dsi *dsi,
 	struct resource *res;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "failed to get I/O resource\n");
+		return -EINVAL;
+	}
+
 	ctx->base = devm_ioremap(dev, res->start, resource_size(res));
 	if (!ctx->base) {
 		drm_err(dsi->drm, "failed to map dsi host registers\n");
-- 
2.34.1

[PATCH AUTOSEL 5.17 073/149] drm/amd/display: reset lane settings after each PHY repeater LT

[Sasha Levin]

From: Sung Joon Kim <sungkim@amd.com>

[ Upstream commit 3b853c316c9321e195414a6fb121d1c2d45b1e87 ]

[why]
In LTTPR non-transparent mode, we need
to reset the cached lane settings before performing
link training on the next PHY repeater. Otherwise,
the cached lane settings will be used for the next
clock recovery e.g. VS = MAX (3) which should not be
the case according to the DP specs. We expect to use
minimum lane settings on each clock recovery sequence.

[how]
Reset DPCD and HW lane settings on each repeater LT.
Set training pattern to 0 for the repeater that failed LT
at the proper place.

Reviewed-by: Meenakshikumar Somasundaram <Meenakshikumar.Somasundaram@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Sung Joon Kim <sungkim@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 61b8f29a0c30..49d5271dcfdc 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -2378,22 +2378,27 @@ static enum link_training_result dp_perform_8b_10b_link_training(
 				repeater_id--) {
 			status = perform_clock_recovery_sequence(link, link_res, lt_settings, repeater_id);
 
-			if (status != LINK_TRAINING_SUCCESS)
+			if (status != LINK_TRAINING_SUCCESS) {
+				repeater_training_done(link, repeater_id);
 				break;
+			}
 
 			status = perform_channel_equalization_sequence(link,
 					link_res,
 					lt_settings,
 					repeater_id);
 
+			repeater_training_done(link, repeater_id);
+
 			if (status != LINK_TRAINING_SUCCESS)
 				break;
 
-			repeater_training_done(link, repeater_id);
+			for (lane = 0; lane < LANE_COUNT_DP_MAX; lane++) {
+				lt_settings->dpcd_lane_settings[lane].raw = 0;
+				lt_settings->hw_lane_settings[lane].VOLTAGE_SWING = 0;
+				lt_settings->hw_lane_settings[lane].PRE_EMPHASIS = 0;
+			}
 		}
-
-		for (lane = 0; lane < (uint8_t)lt_settings->link_settings.lane_count; lane++)
-			lt_settings->dpcd_lane_settings[lane].raw = 0;
 	}
 
 	if (status == LINK_TRAINING_SUCCESS) {
-- 
2.34.1

[PATCH AUTOSEL 5.17 074/149] net/mlx5e: Disable TX queues before registering the netdev

[Sasha Levin]

From: Maxim Mikityanskiy <maximmi@nvidia.com>

[ Upstream commit d08c6e2a4d0308a7922d7ef3b1b3af45d4096aad ]

Normally, the queues are disabled when the channels are deactivated, and
enabled when the channels are activated. However, on register, the
channels are not active, but the queues are enabled by default. This
change fixes it, preventing mlx5e_xmit from running when the channels
are deactivated in the beginning.

Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 3667f5ef5990..169e3524bb1c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -5345,6 +5345,7 @@ mlx5e_create_netdev(struct mlx5_core_dev *mdev, const struct mlx5e_profile *prof
 	}
 
 	netif_carrier_off(netdev);
+	netif_tx_disable(netdev);
 	dev_net_set(netdev, mlx5_core_net(mdev));
 
 	return netdev;
-- 
2.34.1

[PATCH AUTOSEL 5.17 075/149] HID: apple: Report Magic Keyboard 2021 battery over USB

[Sasha Levin]

From: José Expósito <jose.exposito89@gmail.com>

[ Upstream commit 8ae5c16c9d421d43f32f66d2308031f1bd3f9336 ]

Like the Apple Magic Keyboard 2015, when connected over USB, the 2021
version registers 2 different interfaces. One of them is used to report
the battery level.

However, unlike when connected over Bluetooth, the battery level is not
reported automatically and it is required to fetch it manually.

Add the APPLE_RDESC_BATTERY quirk to fix the battery report descriptor
and manually fetch the battery level.

Tested with the ANSI, ISO and JIS variants of the keyboard.

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-apple.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 7dc89dc6b0f0..18de4ccb0fb2 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -748,7 +748,7 @@ static const struct hid_device_id apple_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
-		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
 	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
 		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
-- 
2.34.1

[PATCH AUTOSEL 5.17 076/149] HID: apple: Report Magic Keyboard 2021 with fingerprint reader battery over USB

[Sasha Levin]

From: José Expósito <jose.exposito89@gmail.com>

[ Upstream commit cbfcfbfc384890a062a5d0cc4792df094a6cc7a8 ]

Like the Apple Magic Keyboard 2015, when connected over USB, the 2021
version with fingerprint reader registers 2 different interfaces. One of
them is used to report the battery level.

However, unlike when connected over Bluetooth, the battery level is not
reported automatically and it is required to fetch it manually.

Add the APPLE_RDESC_BATTERY quirk to fix the battery report descriptor
and manually fetch the battery level.

Tested with the ANSI variant of the keyboard with and without numpad.

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-apple.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 18de4ccb0fb2..590376d776a1 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -752,11 +752,11 @@ static const struct hid_device_id apple_devices[] = {
 	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
 		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
-		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
 	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
 		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021),
-		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
 	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021),
 		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 077/149] usb: dwc3: pci: Set the swnode from inside dwc3_pci_quirks()

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit e285cb403994419e997749c9a52b9370884ae0c8 ]

The quirk handling may need to set some different properties
which means using a different swnode, move the setting of the swnode
to inside dwc3_pci_quirks() so that the quirk handling can choose
a different swnode.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220213130524.18748-4-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/dwc3-pci.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 06d0e88ec8af..4d9608cc55f7 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -185,7 +185,8 @@ static const struct software_node dwc3_pci_amd_mr_swnode = {
 	.properties = dwc3_pci_mr_properties,
 };
 
-static int dwc3_pci_quirks(struct dwc3_pci *dwc)
+static int dwc3_pci_quirks(struct dwc3_pci *dwc,
+			   const struct software_node *swnode)
 {
 	struct pci_dev			*pdev = dwc->pci;
 
@@ -242,7 +243,7 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc)
 		}
 	}
 
-	return 0;
+	return device_add_software_node(&dwc->dwc3->dev, swnode);
 }
 
 #ifdef CONFIG_PM
@@ -307,11 +308,7 @@ static int dwc3_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
 	dwc->dwc3->dev.parent = dev;
 	ACPI_COMPANION_SET(&dwc->dwc3->dev, ACPI_COMPANION(dev));
 
-	ret = device_add_software_node(&dwc->dwc3->dev, (void *)id->driver_data);
-	if (ret < 0)
-		goto err;
-
-	ret = dwc3_pci_quirks(dwc);
+	ret = dwc3_pci_quirks(dwc, (void *)id->driver_data);
 	if (ret)
 		goto err;
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 078/149] iwlwifi: mvm: Correctly set fragmented EBS

[Sasha Levin]

From: Ilan Peer <ilan.peer@intel.com>

[ Upstream commit d8d4dd26b9e0469baf5017f0544d852fd4e3fb6d ]

Currently, fragmented EBS was set for a channel only if the 'hb_type'
was set to fragmented or balanced scan. However, 'hb_type' is set only
in case of CDB, and thus fragmented EBS is never set for a channel for
non-CDB devices. Fix it.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220204122220.a6165ac9b9d5.I654eafa62fd647030ae6d4f07f32c96c3171decb@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index 5f92a09db374..4cd507cb412d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -1893,7 +1893,10 @@ static u8 iwl_mvm_scan_umac_chan_flags_v2(struct iwl_mvm *mvm,
 			IWL_SCAN_CHANNEL_FLAG_CACHE_ADD;
 
 	/* set fragmented ebs for fragmented scan on HB channels */
-	if (iwl_mvm_is_scan_fragmented(params->hb_type))
+	if ((!iwl_mvm_is_cdb_supported(mvm) &&
+	     iwl_mvm_is_scan_fragmented(params->type)) ||
+	    (iwl_mvm_is_cdb_supported(mvm) &&
+	     iwl_mvm_is_scan_fragmented(params->hb_type)))
 		flags |= IWL_SCAN_CHANNEL_FLAG_EBS_FRAG;
 
 	return flags;
-- 
2.34.1

[PATCH AUTOSEL 5.17 079/149] iwlwifi: mvm: Passively scan non PSC channels only when requested so

[Sasha Levin]

From: Ilan Peer <ilan.peer@intel.com>

[ Upstream commit 9966904e9472703a05861f343157cd78f47514fd ]

Non PSC channels should generally be scanned based on information about
collocated APs obtained during scan on legacy bands, and otherwise
should not be scanned unless specifically requested so (as there are
relatively many non PSC channels, scanning them passively is time consuming
and interferes with regular data traffic).

Thus, modify the scan logic to avoid passively scanning PSC channels
if there is no information about collocated APs and the scan is not
a passive scan.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220204122220.457da4cc95eb.Ic98472bab5f5475f1e102547644caaae89ce4c4a@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 42 ++++++++++++++-----
 1 file changed, 32 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index 4cd507cb412d..630cfb64c6b1 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -1735,27 +1735,37 @@ iwl_mvm_umac_scan_fill_6g_chan_list(struct iwl_mvm *mvm,
 }
 
 /* TODO: this function can be merged with iwl_mvm_scan_umac_fill_ch_p_v6 */
-static void
-iwl_mvm_umac_scan_cfg_channels_v6_6g(struct iwl_mvm_scan_params *params,
+static u32
+iwl_mvm_umac_scan_cfg_channels_v6_6g(struct iwl_mvm *mvm,
+				     struct iwl_mvm_scan_params *params,
 				     u32 n_channels,
 				     struct iwl_scan_probe_params_v4 *pp,
 				     struct iwl_scan_channel_params_v6 *cp,
 				     enum nl80211_iftype vif_type)
 {
-	struct iwl_scan_channel_cfg_umac *channel_cfg = cp->channel_config;
 	int i;
 	struct cfg80211_scan_6ghz_params *scan_6ghz_params =
 		params->scan_6ghz_params;
+	u32 ch_cnt;
 
-	for (i = 0; i < params->n_channels; i++) {
+	for (i = 0, ch_cnt = 0; i < params->n_channels; i++) {
 		struct iwl_scan_channel_cfg_umac *cfg =
-			&cp->channel_config[i];
+			&cp->channel_config[ch_cnt];
 
 		u32 s_ssid_bitmap = 0, bssid_bitmap = 0, flags = 0;
 		u8 j, k, s_max = 0, b_max = 0, n_used_bssid_entries;
 		bool force_passive, found = false, allow_passive = true,
 		     unsolicited_probe_on_chan = false, psc_no_listen = false;
 
+		/*
+		 * Avoid performing passive scan on non PSC channels unless the
+		 * scan is specifically a passive scan, i.e., no SSIDs
+		 * configured in the scan command.
+		 */
+		if (!cfg80211_channel_is_psc(params->channels[i]) &&
+		    !params->n_6ghz_params && params->n_ssids)
+			continue;
+
 		cfg->v1.channel_num = params->channels[i]->hw_value;
 		cfg->v2.band = 2;
 		cfg->v2.iter_count = 1;
@@ -1875,8 +1885,16 @@ iwl_mvm_umac_scan_cfg_channels_v6_6g(struct iwl_mvm_scan_params *params,
 		else
 			flags |= bssid_bitmap | (s_ssid_bitmap << 16);
 
-		channel_cfg[i].flags |= cpu_to_le32(flags);
+		cfg->flags |= cpu_to_le32(flags);
+		ch_cnt++;
 	}
+
+	if (params->n_channels > ch_cnt)
+		IWL_DEBUG_SCAN(mvm,
+			       "6GHz: reducing number channels: (%u->%u)\n",
+			       params->n_channels, ch_cnt);
+
+	return ch_cnt;
 }
 
 static u8 iwl_mvm_scan_umac_chan_flags_v2(struct iwl_mvm *mvm,
@@ -2424,10 +2442,14 @@ static int iwl_mvm_scan_umac_v14_and_above(struct iwl_mvm *mvm,
 	if (ret)
 		return ret;
 
-	iwl_mvm_umac_scan_cfg_channels_v6_6g(params,
-					     params->n_channels,
-					     pb, cp, vif->type);
-	cp->count = params->n_channels;
+	cp->count = iwl_mvm_umac_scan_cfg_channels_v6_6g(mvm, params,
+							 params->n_channels,
+							 pb, cp, vif->type);
+	if (!cp->count) {
+		mvm->scan_uid_status[uid] = 0;
+		return -EINVAL;
+	}
+
 	if (!params->n_ssids ||
 	    (params->n_ssids == 1 && !params->ssids[0].ssid_len))
 		cp->flags |= IWL_SCAN_CHANNEL_FLAG_6G_PSC_NO_FILTER;
-- 
2.34.1

Re: [PATCH AUTOSEL 5.17 079/149] iwlwifi: mvm: Passively scan non PSC channels only when requested so

[Ben Greear]

I had to revert this patch in my 5.17+ kernel (with 5.18-ish iwlwifi patches backported)
to get the station to properly scan and connect to a vendor's AP.

I got zero response to my earlier email about that regression.

I think this is not something that should be added to stable builds at this time.

Thanks,
Ben

On 4/1/22 7:24 AM, Sasha Levin wrote:
> From: Ilan Peer <ilan.peer@intel.com>
> 
> [ Upstream commit 9966904e9472703a05861f343157cd78f47514fd ]
> 
> Non PSC channels should generally be scanned based on information about
> collocated APs obtained during scan on legacy bands, and otherwise
> should not be scanned unless specifically requested so (as there are
> relatively many non PSC channels, scanning them passively is time consuming
> and interferes with regular data traffic).
> 
> Thus, modify the scan logic to avoid passively scanning PSC channels
> if there is no information about collocated APs and the scan is not
> a passive scan.
> 
> Signed-off-by: Ilan Peer <ilan.peer@intel.com>
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
> Link: https://lore.kernel.org/r/iwlwifi.20220204122220.457da4cc95eb.Ic98472bab5f5475f1e102547644caaae89ce4c4a@changeid
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>   drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 42 ++++++++++++++-----
>   1 file changed, 32 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
> index 4cd507cb412d..630cfb64c6b1 100644
> --- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
> +++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
> @@ -1735,27 +1735,37 @@ iwl_mvm_umac_scan_fill_6g_chan_list(struct iwl_mvm *mvm,
>   }
>   
>   /* TODO: this function can be merged with iwl_mvm_scan_umac_fill_ch_p_v6 */
> -static void
> -iwl_mvm_umac_scan_cfg_channels_v6_6g(struct iwl_mvm_scan_params *params,
> +static u32
> +iwl_mvm_umac_scan_cfg_channels_v6_6g(struct iwl_mvm *mvm,
> +				     struct iwl_mvm_scan_params *params,
>   				     u32 n_channels,
>   				     struct iwl_scan_probe_params_v4 *pp,
>   				     struct iwl_scan_channel_params_v6 *cp,
>   				     enum nl80211_iftype vif_type)
>   {
> -	struct iwl_scan_channel_cfg_umac *channel_cfg = cp->channel_config;
>   	int i;
>   	struct cfg80211_scan_6ghz_params *scan_6ghz_params =
>   		params->scan_6ghz_params;
> +	u32 ch_cnt;
>   
> -	for (i = 0; i < params->n_channels; i++) {
> +	for (i = 0, ch_cnt = 0; i < params->n_channels; i++) {
>   		struct iwl_scan_channel_cfg_umac *cfg =
> -			&cp->channel_config[i];
> +			&cp->channel_config[ch_cnt];
>   
>   		u32 s_ssid_bitmap = 0, bssid_bitmap = 0, flags = 0;
>   		u8 j, k, s_max = 0, b_max = 0, n_used_bssid_entries;
>   		bool force_passive, found = false, allow_passive = true,
>   		     unsolicited_probe_on_chan = false, psc_no_listen = false;
>   
> +		/*
> +		 * Avoid performing passive scan on non PSC channels unless the
> +		 * scan is specifically a passive scan, i.e., no SSIDs
> +		 * configured in the scan command.
> +		 */
> +		if (!cfg80211_channel_is_psc(params->channels[i]) &&
> +		    !params->n_6ghz_params && params->n_ssids)
> +			continue;
> +
>   		cfg->v1.channel_num = params->channels[i]->hw_value;
>   		cfg->v2.band = 2;
>   		cfg->v2.iter_count = 1;
> @@ -1875,8 +1885,16 @@ iwl_mvm_umac_scan_cfg_channels_v6_6g(struct iwl_mvm_scan_params *params,
>   		else
>   			flags |= bssid_bitmap | (s_ssid_bitmap << 16);
>   
> -		channel_cfg[i].flags |= cpu_to_le32(flags);
> +		cfg->flags |= cpu_to_le32(flags);
> +		ch_cnt++;
>   	}
> +
> +	if (params->n_channels > ch_cnt)
> +		IWL_DEBUG_SCAN(mvm,
> +			       "6GHz: reducing number channels: (%u->%u)\n",
> +			       params->n_channels, ch_cnt);
> +
> +	return ch_cnt;
>   }
>   
>   static u8 iwl_mvm_scan_umac_chan_flags_v2(struct iwl_mvm *mvm,
> @@ -2424,10 +2442,14 @@ static int iwl_mvm_scan_umac_v14_and_above(struct iwl_mvm *mvm,
>   	if (ret)
>   		return ret;
>   
> -	iwl_mvm_umac_scan_cfg_channels_v6_6g(params,
> -					     params->n_channels,
> -					     pb, cp, vif->type);
> -	cp->count = params->n_channels;
> +	cp->count = iwl_mvm_umac_scan_cfg_channels_v6_6g(mvm, params,
> +							 params->n_channels,
> +							 pb, cp, vif->type);
> +	if (!cp->count) {
> +		mvm->scan_uid_status[uid] = 0;
> +		return -EINVAL;
> +	}
> +
>   	if (!params->n_ssids ||
>   	    (params->n_ssids == 1 && !params->ssids[0].ssid_len))
>   		cp->flags |= IWL_SCAN_CHANNEL_FLAG_6G_PSC_NO_FILTER;
> 


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

Re: [PATCH AUTOSEL 5.17 079/149] iwlwifi: mvm: Passively scan non PSC channels only when requested so

[Sasha Levin]

On Fri, Apr 01, 2022 at 07:52:39AM -0700, Ben Greear wrote:
>I had to revert this patch in my 5.17+ kernel (with 5.18-ish iwlwifi patches backported)
>to get the station to properly scan and connect to a vendor's AP.
>
>I got zero response to my earlier email about that regression.
>
>I think this is not something that should be added to stable builds at this time.

Agreed and dropped, thanks.

-- 
Thanks,
Sasha

[PATCH AUTOSEL 5.17 080/149] iwlwifi: fix small doc mistake for iwl_fw_ini_addr_val

[Sasha Levin]

From: Luca Coelho <luciano.coelho@intel.com>

[ Upstream commit 3009c797c4b3840495e8f48d8d07f48d2ddfed80 ]

There was a small copy and paste mistake in the doc declaration of
iwl_fw_ini_addr_val.  Fix it.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220205112029.aeec71c397b3.I0ba3234419eb8c8c7512a2ca531a6dbb55046cf7@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
index 456b7eaac570..061fe6cc6cf5 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2018-2021 Intel Corporation
+ * Copyright (C) 2018-2022 Intel Corporation
  */
 #ifndef __iwl_fw_dbg_tlv_h__
 #define __iwl_fw_dbg_tlv_h__
@@ -249,11 +249,10 @@ struct iwl_fw_ini_hcmd_tlv {
 } __packed; /* FW_TLV_DEBUG_HCMD_API_S_VER_1 */
 
 /**
-* struct iwl_fw_ini_conf_tlv - preset configuration TLV
+* struct iwl_fw_ini_addr_val - Address and value to set it to
 *
 * @address: the base address
 * @value: value to set at address
-
 */
 struct iwl_fw_ini_addr_val {
 	__le32 address;
-- 
2.34.1

[PATCH AUTOSEL 5.17 081/149] iwlwifi: mvm: move only to an enabled channel

[Sasha Levin]

From: Miri Korenblit <miriam.rachel.korenblit@intel.com>

[ Upstream commit e04135c07755d001b5cde61048c69a7cc84bb94b ]

During disassociation we're decreasing the phy's ref count.
If the ref count becomes 0, we're configuring the phy ctxt
to the default channel (the lowest channel which the device
can operate on). Currently we're not checking whether the
the default channel is enabled or not. Fix it by configuring
the phy ctxt to the lowest channel which is enabled.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220210181930.03f281b6a6bc.I5b63d43ec41996d599e6f37ec3f32e878b3e405e@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/intel/iwlwifi/mvm/phy-ctxt.c | 31 +++++++++++++------
 1 file changed, 22 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c
index 9af40b0fa37a..a6e6673bf4ee 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /*
- * Copyright (C) 2012-2014, 2018-2021 Intel Corporation
+ * Copyright (C) 2012-2014, 2018-2022 Intel Corporation
  * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
  * Copyright (C) 2017 Intel Deutschland GmbH
  */
@@ -349,18 +349,31 @@ void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
 	 * otherwise we might not be able to reuse this phy.
 	 */
 	if (ctxt->ref == 0) {
-		struct ieee80211_channel *chan;
+		struct ieee80211_channel *chan = NULL;
 		struct cfg80211_chan_def chandef;
-		struct ieee80211_supported_band *sband = NULL;
-		enum nl80211_band band = NL80211_BAND_2GHZ;
+		struct ieee80211_supported_band *sband;
+		enum nl80211_band band;
+		int channel;
 
-		while (!sband && band < NUM_NL80211_BANDS)
-			sband = mvm->hw->wiphy->bands[band++];
+		for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
+			sband = mvm->hw->wiphy->bands[band];
 
-		if (WARN_ON(!sband))
-			return;
+			if (!sband)
+				continue;
+
+			for (channel = 0; channel < sband->n_channels; channel++)
+				if (!(sband->channels[channel].flags &
+						IEEE80211_CHAN_DISABLED)) {
+					chan = &sband->channels[channel];
+					break;
+				}
 
-		chan = &sband->channels[0];
+			if (chan)
+				break;
+		}
+
+		if (WARN_ON(!chan))
+			return;
 
 		cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
 		iwl_mvm_phy_ctxt_changed(mvm, ctxt, &chandef, 1, 1);
-- 
2.34.1

[PATCH AUTOSEL 5.17 082/149] ipv6: annotate some data-races around sk->sk_prot

[Sasha Levin]

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 086d49058cd8471046ae9927524708820f5fd1c7 ]

IPv6 has this hack changing sk->sk_prot when an IPv6 socket
is 'converted' to an IPv4 one with IPV6_ADDRFORM option.

This operation is only performed for TCP and UDP, knowing
their 'struct proto' for the two network families are populated
in the same way, and can not disappear while a reader
might use and dereference sk->sk_prot.

If we think about it all reads of sk->sk_prot while
either socket lock or RTNL is not acquired should be using READ_ONCE().

Also note that other layers like MPTCP, XFRM, CHELSIO_TLS also
write over sk->sk_prot.

BUG: KCSAN: data-race in inet6_recvmsg / ipv6_setsockopt

write to 0xffff8881386f7aa8 of 8 bytes by task 26932 on cpu 0:
 do_ipv6_setsockopt net/ipv6/ipv6_sockglue.c:492 [inline]
 ipv6_setsockopt+0x3758/0x3910 net/ipv6/ipv6_sockglue.c:1019
 udpv6_setsockopt+0x85/0x90 net/ipv6/udp.c:1649
 sock_common_setsockopt+0x5d/0x70 net/core/sock.c:3489
 __sys_setsockopt+0x209/0x2a0 net/socket.c:2180
 __do_sys_setsockopt net/socket.c:2191 [inline]
 __se_sys_setsockopt net/socket.c:2188 [inline]
 __x64_sys_setsockopt+0x62/0x70 net/socket.c:2188
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff8881386f7aa8 of 8 bytes by task 26911 on cpu 1:
 inet6_recvmsg+0x7a/0x210 net/ipv6/af_inet6.c:659
 ____sys_recvmsg+0x16c/0x320
 ___sys_recvmsg net/socket.c:2674 [inline]
 do_recvmmsg+0x3f5/0xae0 net/socket.c:2768
 __sys_recvmmsg net/socket.c:2847 [inline]
 __do_sys_recvmmsg net/socket.c:2870 [inline]
 __se_sys_recvmmsg net/socket.c:2863 [inline]
 __x64_sys_recvmmsg+0xde/0x160 net/socket.c:2863
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0xffffffff85e0e980 -> 0xffffffff85e01580

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 26911 Comm: syz-executor.3 Not tainted 5.17.0-rc2-syzkaller-00316-g0457e5153e0e-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/af_inet6.c      | 24 ++++++++++++++++++------
 net/ipv6/ipv6_sockglue.c |  6 ++++--
 2 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 8fe7900f1949..7d7b7523d126 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -441,11 +441,14 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 {
 	struct sock *sk = sock->sk;
 	u32 flags = BIND_WITH_LOCK;
+	const struct proto *prot;
 	int err = 0;
 
+	/* IPV6_ADDRFORM can change sk->sk_prot under us. */
+	prot = READ_ONCE(sk->sk_prot);
 	/* If the socket has its own bind function then use it. */
-	if (sk->sk_prot->bind)
-		return sk->sk_prot->bind(sk, uaddr, addr_len);
+	if (prot->bind)
+		return prot->bind(sk, uaddr, addr_len);
 
 	if (addr_len < SIN6_LEN_RFC2133)
 		return -EINVAL;
@@ -555,6 +558,7 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 	void __user *argp = (void __user *)arg;
 	struct sock *sk = sock->sk;
 	struct net *net = sock_net(sk);
+	const struct proto *prot;
 
 	switch (cmd) {
 	case SIOCADDRT:
@@ -572,9 +576,11 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 	case SIOCSIFDSTADDR:
 		return addrconf_set_dstaddr(net, argp);
 	default:
-		if (!sk->sk_prot->ioctl)
+		/* IPV6_ADDRFORM can change sk->sk_prot under us. */
+		prot = READ_ONCE(sk->sk_prot);
+		if (!prot->ioctl)
 			return -ENOIOCTLCMD;
-		return sk->sk_prot->ioctl(sk, cmd, arg);
+		return prot->ioctl(sk, cmd, arg);
 	}
 	/*NOTREACHED*/
 	return 0;
@@ -636,11 +642,14 @@ INDIRECT_CALLABLE_DECLARE(int udpv6_sendmsg(struct sock *, struct msghdr *,
 int inet6_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 {
 	struct sock *sk = sock->sk;
+	const struct proto *prot;
 
 	if (unlikely(inet_send_prepare(sk)))
 		return -EAGAIN;
 
-	return INDIRECT_CALL_2(sk->sk_prot->sendmsg, tcp_sendmsg, udpv6_sendmsg,
+	/* IPV6_ADDRFORM can change sk->sk_prot under us. */
+	prot = READ_ONCE(sk->sk_prot);
+	return INDIRECT_CALL_2(prot->sendmsg, tcp_sendmsg, udpv6_sendmsg,
 			       sk, msg, size);
 }
 
@@ -650,13 +659,16 @@ int inet6_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
 		  int flags)
 {
 	struct sock *sk = sock->sk;
+	const struct proto *prot;
 	int addr_len = 0;
 	int err;
 
 	if (likely(!(flags & MSG_ERRQUEUE)))
 		sock_rps_record_flow(sk);
 
-	err = INDIRECT_CALL_2(sk->sk_prot->recvmsg, tcp_recvmsg, udpv6_recvmsg,
+	/* IPV6_ADDRFORM can change sk->sk_prot under us. */
+	prot = READ_ONCE(sk->sk_prot);
+	err = INDIRECT_CALL_2(prot->recvmsg, tcp_recvmsg, udpv6_recvmsg,
 			      sk, msg, size, flags & MSG_DONTWAIT,
 			      flags & ~MSG_DONTWAIT, &addr_len);
 	if (err >= 0)
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index a733803a710c..222f6bf220ba 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -475,7 +475,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 				sock_prot_inuse_add(net, sk->sk_prot, -1);
 				sock_prot_inuse_add(net, &tcp_prot, 1);
 
-				sk->sk_prot = &tcp_prot;
+				/* Paired with READ_ONCE(sk->sk_prot) in net/ipv6/af_inet6.c */
+				WRITE_ONCE(sk->sk_prot, &tcp_prot);
 				icsk->icsk_af_ops = &ipv4_specific;
 				sk->sk_socket->ops = &inet_stream_ops;
 				sk->sk_family = PF_INET;
@@ -489,7 +490,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 				sock_prot_inuse_add(net, sk->sk_prot, -1);
 				sock_prot_inuse_add(net, prot, 1);
 
-				sk->sk_prot = prot;
+				/* Paired with READ_ONCE(sk->sk_prot) in net/ipv6/af_inet6.c */
+				WRITE_ONCE(sk->sk_prot, prot);
 				sk->sk_socket->ops = &inet_dgram_ops;
 				sk->sk_family = PF_INET;
 			}
-- 
2.34.1

[PATCH AUTOSEL 5.17 083/149] drm/msm/dsi: Remove spurious IRQF_ONESHOT flag

[Sasha Levin]

From: Daniel Thompson <daniel.thompson@linaro.org>

[ Upstream commit 24b176d8827d167ac3b379317f60c0985f6e95aa ]

Quoting the header comments, IRQF_ONESHOT is "Used by threaded interrupts
which need to keep the irq line disabled until the threaded handler has
been run.". When applied to an interrupt that doesn't request a threaded
irq then IRQF_ONESHOT has a lesser known (undocumented?) side effect,
which it to disable the forced threading of irqs (and for "normal" kernels
it is a nop). In this case I can find no evidence that suppressing forced
threading is intentional. Had it been intentional then a driver must adopt
the raw_spinlock API in order to avoid deadlocks on PREEMPT_RT kernels
(and avoid calling any kernel API that uses regular spinlocks).

Fix this by removing the spurious additional flag.

This change is required for my Snapdragon 7cx Gen2 tablet to boot-to-GUI
with PREEMPT_RT enabled.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220201174734.196718-2-daniel.thompson@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 6b3ced4aaaf5..3a3f53f0c8ae 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1877,7 +1877,7 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
 
 	/* do not autoenable, will be enabled later */
 	ret = devm_request_irq(&pdev->dev, msm_host->irq, dsi_host_irq,
-			IRQF_TRIGGER_HIGH | IRQF_ONESHOT | IRQF_NO_AUTOEN,
+			IRQF_TRIGGER_HIGH | IRQF_NO_AUTOEN,
 			"dsi_isr", msm_host);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to request IRQ%u: %d\n",
-- 
2.34.1

[PATCH AUTOSEL 5.17 084/149] x86/mce: Work around an erratum on fast string copy instructions

[Sasha Levin]

From: Jue Wang <juew@google.com>

[ Upstream commit 8ca97812c3c830573f965a07bbd84223e8c5f5bd ]

A rare kernel panic scenario can happen when the following conditions
are met due to an erratum on fast string copy instructions:

1) An uncorrected error.
2) That error must be in first cache line of a page.
3) Kernel must execute page_copy from the page immediately before that
page.

The fast string copy instructions ("REP; MOVS*") could consume an
uncorrectable memory error in the cache line _right after_ the desired
region to copy and raise an MCE.

Bit 0 of MSR_IA32_MISC_ENABLE can be cleared to disable fast string
copy and will avoid such spurious machine checks. However, that is less
preferable due to the permanent performance impact. Considering memory
poison is rare, it's desirable to keep fast string copy enabled until an
MCE is seen.

Intel has confirmed the following:
1. The CPU erratum of fast string copy only applies to Skylake,
Cascade Lake and Cooper Lake generations.

Directly return from the MCE handler:
2. Will result in complete execution of the "REP; MOVS*" with no data
loss or corruption.
3. Will not result in another MCE firing on the next poisoned cache line
due to "REP; MOVS*".
4. Will resume execution from a correct point in code.
5. Will result in the same instruction that triggered the MCE firing a
second MCE immediately for any other software recoverable data fetch
errors.
6. Is not safe without disabling the fast string copy, as the next fast
string copy of the same buffer on the same CPU would result in a PANIC
MCE.

This should mitigate the erratum completely with the only caveat that
the fast string copy is disabled on the affected hyper thread thus
performance degradation.

This is still better than the OS crashing on MCEs raised on an
irrelevant process due to "REP; MOVS*' accesses in a kernel context,
e.g., copy_page.

Tested:

Injected errors on 1st cache line of 8 anonymous pages of process
'proc1' and observed MCE consumption from 'proc2' with no panic
(directly returned).

Without the fix, the host panicked within a few minutes on a
random 'proc2' process due to kernel access from copy_page.

  [ bp: Fix comment style + touch ups, zap an unlikely(), improve the
    quirk function's readability. ]

Signed-off-by: Jue Wang <juew@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20220218013209.2436006-1-juew@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/mce/core.c     | 64 ++++++++++++++++++++++++++++++
 arch/x86/kernel/cpu/mce/internal.h |  5 ++-
 2 files changed, 68 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 5818b837fd4d..2d719e0d2e40 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -834,6 +834,59 @@ static void quirk_sandybridge_ifu(int bank, struct mce *m, struct pt_regs *regs)
 	m->cs = regs->cs;
 }
 
+/*
+ * Disable fast string copy and return from the MCE handler upon the first SRAR
+ * MCE on bank 1 due to a CPU erratum on Intel Skylake/Cascade Lake/Cooper Lake
+ * CPUs.
+ * The fast string copy instructions ("REP; MOVS*") could consume an
+ * uncorrectable memory error in the cache line _right after_ the desired region
+ * to copy and raise an MCE with RIP pointing to the instruction _after_ the
+ * "REP; MOVS*".
+ * This mitigation addresses the issue completely with the caveat of performance
+ * degradation on the CPU affected. This is still better than the OS crashing on
+ * MCEs raised on an irrelevant process due to "REP; MOVS*" accesses from a
+ * kernel context (e.g., copy_page).
+ *
+ * Returns true when fast string copy on CPU has been disabled.
+ */
+static noinstr bool quirk_skylake_repmov(void)
+{
+	u64 mcgstatus   = mce_rdmsrl(MSR_IA32_MCG_STATUS);
+	u64 misc_enable = mce_rdmsrl(MSR_IA32_MISC_ENABLE);
+	u64 mc1_status;
+
+	/*
+	 * Apply the quirk only to local machine checks, i.e., no broadcast
+	 * sync is needed.
+	 */
+	if (!(mcgstatus & MCG_STATUS_LMCES) ||
+	    !(misc_enable & MSR_IA32_MISC_ENABLE_FAST_STRING))
+		return false;
+
+	mc1_status = mce_rdmsrl(MSR_IA32_MCx_STATUS(1));
+
+	/* Check for a software-recoverable data fetch error. */
+	if ((mc1_status &
+	     (MCI_STATUS_VAL | MCI_STATUS_OVER | MCI_STATUS_UC | MCI_STATUS_EN |
+	      MCI_STATUS_ADDRV | MCI_STATUS_MISCV | MCI_STATUS_PCC |
+	      MCI_STATUS_AR | MCI_STATUS_S)) ==
+	     (MCI_STATUS_VAL |                   MCI_STATUS_UC | MCI_STATUS_EN |
+	      MCI_STATUS_ADDRV | MCI_STATUS_MISCV |
+	      MCI_STATUS_AR | MCI_STATUS_S)) {
+		misc_enable &= ~MSR_IA32_MISC_ENABLE_FAST_STRING;
+		mce_wrmsrl(MSR_IA32_MISC_ENABLE, misc_enable);
+		mce_wrmsrl(MSR_IA32_MCx_STATUS(1), 0);
+
+		instrumentation_begin();
+		pr_err_once("Erratum detected, disable fast string copy instructions.\n");
+		instrumentation_end();
+
+		return true;
+	}
+
+	return false;
+}
+
 /*
  * Do a quick check if any of the events requires a panic.
  * This decides if we keep the events around or clear them.
@@ -1403,6 +1456,9 @@ noinstr void do_machine_check(struct pt_regs *regs)
 	else if (unlikely(!mca_cfg.initialized))
 		return unexpected_machine_check(regs);
 
+	if (mce_flags.skx_repmov_quirk && quirk_skylake_repmov())
+		goto clear;
+
 	/*
 	 * Establish sequential order between the CPUs entering the machine
 	 * check handler.
@@ -1545,6 +1601,7 @@ noinstr void do_machine_check(struct pt_regs *regs)
 out:
 	instrumentation_end();
 
+clear:
 	mce_wrmsrl(MSR_IA32_MCG_STATUS, 0);
 }
 EXPORT_SYMBOL_GPL(do_machine_check);
@@ -1858,6 +1915,13 @@ static int __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c)
 
 		if (c->x86 == 6 && c->x86_model == 45)
 			mce_flags.snb_ifu_quirk = 1;
+
+		/*
+		 * Skylake, Cascacde Lake and Cooper Lake require a quirk on
+		 * rep movs.
+		 */
+		if (c->x86 == 6 && c->x86_model == INTEL_FAM6_SKYLAKE_X)
+			mce_flags.skx_repmov_quirk = 1;
 	}
 
 	if (c->x86_vendor == X86_VENDOR_ZHAOXIN) {
diff --git a/arch/x86/kernel/cpu/mce/internal.h b/arch/x86/kernel/cpu/mce/internal.h
index 52c633950b38..24d099e2d2a2 100644
--- a/arch/x86/kernel/cpu/mce/internal.h
+++ b/arch/x86/kernel/cpu/mce/internal.h
@@ -170,7 +170,10 @@ struct mce_vendor_flags {
 	/* SandyBridge IFU quirk */
 	snb_ifu_quirk		: 1,
 
-	__reserved_0		: 57;
+	/* Skylake, Cascade Lake, Cooper Lake REP;MOVS* quirk */
+	skx_repmov_quirk	: 1,
+
+	__reserved_0		: 56;
 };
 
 extern struct mce_vendor_flags mce_flags;
-- 
2.34.1

[PATCH AUTOSEL 5.17 085/149] rtw89: fix RCU usage in rtw89_core_txq_push()

[Sasha Levin]

From: Jiri Kosina <jkosina@suse.cz>

[ Upstream commit f3d825a35920714fb7f73e4d4f36ea2328860660 ]

ieee80211_tx_h_select_key() is performing a series of RCU dereferences,
but rtw89_core_txq_push() is calling it (via ieee80211_tx_dequeue_ni())
without RCU read-side lock held; fix that.

This addresses the splat below.

 =============================
 WARNING: suspicious RCU usage
 5.17.0-rc4-00003-gccad664b7f14 #3 Tainted: G            E
 -----------------------------
 net/mac80211/tx.c:593 suspicious rcu_dereference_check() usage!

 other info that might help us debug this:

 rcu_scheduler_active = 2, debug_locks = 1
 2 locks held by kworker/u33:0/184:
  #0: ffff9c0b14811d38 ((wq_completion)rtw89_tx_wq){+.+.}-{0:0}, at: process_one_work+0x258/0x660
  #1: ffffb97380cf3e78 ((work_completion)(&rtwdev->txq_work)){+.+.}-{0:0}, at: process_one_work+0x258/0x660

 stack backtrace:
 CPU: 8 PID: 184 Comm: kworker/u33:0 Tainted: G            E     5.17.0-rc4-00003-gccad664b7f14 #3 473b49ab0e7c2d6af2900c756bfd04efd7a9de13
 Hardware name: LENOVO 20UJS2B905/20UJS2B905, BIOS R1CET63W(1.32 ) 04/09/2021
 Workqueue: rtw89_tx_wq rtw89_core_txq_work [rtw89_core]
 Call Trace:
  <TASK>
  dump_stack_lvl+0x58/0x71
  ieee80211_tx_h_select_key+0x2c0/0x530 [mac80211 911c23e2351c0ae60b597a67b1204a5ea955e365]
  ieee80211_tx_dequeue+0x1a7/0x1260 [mac80211 911c23e2351c0ae60b597a67b1204a5ea955e365]
  rtw89_core_txq_work+0x1a6/0x420 [rtw89_core b39ba493f2e517ad75e0f8187ecc24edf58bbbea]
  process_one_work+0x2d8/0x660
  worker_thread+0x39/0x3e0
  ? process_one_work+0x660/0x660
  kthread+0xe5/0x110
  ? kthread_complete_and_exit+0x20/0x20
  ret_from_fork+0x22/0x30
  </TASK>

 =============================
 WARNING: suspicious RCU usage
 5.17.0-rc4-00003-gccad664b7f14 #3 Tainted: G            E
 -----------------------------
 net/mac80211/tx.c:607 suspicious rcu_dereference_check() usage!

 other info that might help us debug this:

 rcu_scheduler_active = 2, debug_locks = 1
 2 locks held by kworker/u33:0/184:
  #0: ffff9c0b14811d38 ((wq_completion)rtw89_tx_wq){+.+.}-{0:0}, at: process_one_work+0x258/0x660
  #1: ffffb97380cf3e78 ((work_completion)(&rtwdev->txq_work)){+.+.}-{0:0}, at: process_one_work+0x258/0x660

 stack backtrace:
 CPU: 8 PID: 184 Comm: kworker/u33:0 Tainted: G            E     5.17.0-rc4-00003-gccad664b7f14 #3 473b49ab0e7c2d6af2900c756bfd04efd7a9de13
 Hardware name: LENOVO 20UJS2B905/20UJS2B905, BIOS R1CET63W(1.32 ) 04/09/2021
 Workqueue: rtw89_tx_wq rtw89_core_txq_work [rtw89_core]
 Call Trace:
  <TASK>
  dump_stack_lvl+0x58/0x71
  ieee80211_tx_h_select_key+0x464/0x530 [mac80211 911c23e2351c0ae60b597a67b1204a5ea955e365]
  ieee80211_tx_dequeue+0x1a7/0x1260 [mac80211 911c23e2351c0ae60b597a67b1204a5ea955e365]
  rtw89_core_txq_work+0x1a6/0x420 [rtw89_core b39ba493f2e517ad75e0f8187ecc24edf58bbbea]
  process_one_work+0x2d8/0x660
  worker_thread+0x39/0x3e0
  ? process_one_work+0x660/0x660
  kthread+0xe5/0x110
  ? kthread_complete_and_exit+0x20/0x20
  ret_from_fork+0x22/0x30
  </TASK>

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/nycvar.YFH.7.76.2202152037000.11721@cbobk.fhfr.pm
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtw89/core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index a0737eea9f81..9632e7f218dd 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -1509,11 +1509,12 @@ static void rtw89_core_txq_push(struct rtw89_dev *rtwdev,
 	unsigned long i;
 	int ret;
 
+	rcu_read_lock();
 	for (i = 0; i < frame_cnt; i++) {
 		skb = ieee80211_tx_dequeue_ni(rtwdev->hw, txq);
 		if (!skb) {
 			rtw89_debug(rtwdev, RTW89_DBG_TXRX, "dequeue a NULL skb\n");
-			return;
+			goto out;
 		}
 		rtw89_core_txq_check_agg(rtwdev, rtwtxq, skb);
 		ret = rtw89_core_tx_write(rtwdev, vif, sta, skb, NULL);
@@ -1523,6 +1524,8 @@ static void rtw89_core_txq_push(struct rtw89_dev *rtwdev,
 			break;
 		}
 	}
+out:
+	rcu_read_unlock();
 }
 
 static u32 rtw89_check_and_reclaim_tx_resource(struct rtw89_dev *rtwdev, u8 tid)
-- 
2.34.1

[PATCH AUTOSEL 5.17 086/149] ath11k: Fix frames flush failure caused by deadlock

[Sasha Levin]

From: Baochen Qiang <quic_bqiang@quicinc.com>

[ Upstream commit 261b07519518bd14cb168b287b17e1d195f8d0c8 ]

We are seeing below warnings:

kernel: [25393.301506] ath11k_pci 0000:01:00.0: failed to flush mgmt transmit queue 0
kernel: [25398.421509] ath11k_pci 0000:01:00.0: failed to flush mgmt transmit queue 0
kernel: [25398.421831] ath11k_pci 0000:01:00.0: dropping mgmt frame for vdev 0, is_started 0

this means ath11k fails to flush mgmt. frames because wmi_mgmt_tx_work
has no chance to run in 5 seconds.

By setting /proc/sys/kernel/hung_task_timeout_secs to 20 and increasing
ATH11K_FLUSH_TIMEOUT to 50 we get below warnings:

kernel: [  120.763160] INFO: task wpa_supplicant:924 blocked for more than 20 seconds.
kernel: [  120.763169]       Not tainted 5.10.90 #12
kernel: [  120.763177] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kernel: [  120.763186] task:wpa_supplicant  state:D stack:    0 pid:  924 ppid:     1 flags:0x000043a0
kernel: [  120.763201] Call Trace:
kernel: [  120.763214]  __schedule+0x785/0x12fa
kernel: [  120.763224]  ? lockdep_hardirqs_on_prepare+0xe2/0x1bb
kernel: [  120.763242]  schedule+0x7e/0xa1
kernel: [  120.763253]  schedule_timeout+0x98/0xfe
kernel: [  120.763266]  ? run_local_timers+0x4a/0x4a
kernel: [  120.763291]  ath11k_mac_flush_tx_complete+0x197/0x2b1 [ath11k 13c3a9bf37790f4ac8103b3decf7ab4008ac314a]
kernel: [  120.763306]  ? init_wait_entry+0x2e/0x2e
kernel: [  120.763343]  __ieee80211_flush_queues+0x167/0x21f [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763378]  __ieee80211_recalc_idle+0x105/0x125 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763411]  ieee80211_recalc_idle+0x14/0x27 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763441]  ieee80211_free_chanctx+0x77/0xa2 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763473]  __ieee80211_vif_release_channel+0x100/0x131 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763540]  ieee80211_vif_release_channel+0x66/0x81 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763572]  ieee80211_destroy_auth_data+0xa3/0xe6 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763612]  ieee80211_mgd_deauth+0x178/0x29b [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.763654]  cfg80211_mlme_deauth+0x1a8/0x22c [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be]
kernel: [  120.763697]  nl80211_deauthenticate+0xfa/0x123 [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be]
kernel: [  120.763715]  genl_rcv_msg+0x392/0x3c2
kernel: [  120.763750]  ? nl80211_associate+0x432/0x432 [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be]
kernel: [  120.763782]  ? nl80211_associate+0x432/0x432 [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be]
kernel: [  120.763802]  ? genl_rcv+0x36/0x36
kernel: [  120.763814]  netlink_rcv_skb+0x89/0xf7
kernel: [  120.763829]  genl_rcv+0x28/0x36
kernel: [  120.763840]  netlink_unicast+0x179/0x24b
kernel: [  120.763854]  netlink_sendmsg+0x393/0x401
kernel: [  120.763872]  sock_sendmsg+0x72/0x76
kernel: [  120.763886]  ____sys_sendmsg+0x170/0x1e6
kernel: [  120.763897]  ? copy_msghdr_from_user+0x7a/0xa2
kernel: [  120.763914]  ___sys_sendmsg+0x95/0xd1
kernel: [  120.763940]  __sys_sendmsg+0x85/0xbf
kernel: [  120.763956]  do_syscall_64+0x43/0x55
kernel: [  120.763966]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
kernel: [  120.763977] RIP: 0033:0x79089f3fcc83
kernel: [  120.763986] RSP: 002b:00007ffe604f0508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
kernel: [  120.763997] RAX: ffffffffffffffda RBX: 000059b40e987690 RCX: 000079089f3fcc83
kernel: [  120.764006] RDX: 0000000000000000 RSI: 00007ffe604f0558 RDI: 0000000000000009
kernel: [  120.764014] RBP: 00007ffe604f0540 R08: 0000000000000004 R09: 0000000000400000
kernel: [  120.764023] R10: 00007ffe604f0638 R11: 0000000000000246 R12: 000059b40ea04980
kernel: [  120.764032] R13: 00007ffe604f0638 R14: 000059b40e98c360 R15: 00007ffe604f0558
...
kernel: [  120.765230] INFO: task kworker/u32:26:4239 blocked for more than 20 seconds.
kernel: [  120.765238]       Not tainted 5.10.90 #12
kernel: [  120.765245] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kernel: [  120.765253] task:kworker/u32:26  state:D stack:    0 pid: 4239 ppid:     2 flags:0x00004080
kernel: [  120.765284] Workqueue: phy0 ieee80211_iface_work [mac80211]
kernel: [  120.765295] Call Trace:
kernel: [  120.765306]  __schedule+0x785/0x12fa
kernel: [  120.765316]  ? find_held_lock+0x3d/0xb2
kernel: [  120.765331]  schedule+0x7e/0xa1
kernel: [  120.765340]  schedule_preempt_disabled+0x15/0x1e
kernel: [  120.765349]  __mutex_lock_common+0x561/0xc0d
kernel: [  120.765375]  ? ieee80211_sta_work+0x3e/0x1232 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.765390]  mutex_lock_nested+0x20/0x26
kernel: [  120.765416]  ieee80211_sta_work+0x3e/0x1232 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.765430]  ? skb_dequeue+0x54/0x5e
kernel: [  120.765456]  ? ieee80211_iface_work+0x7b/0x339 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c]
kernel: [  120.765485]  process_one_work+0x270/0x504
kernel: [  120.765501]  worker_thread+0x215/0x376
kernel: [  120.765514]  kthread+0x159/0x168
kernel: [  120.765526]  ? pr_cont_work+0x5b/0x5b
kernel: [  120.765536]  ? kthread_blkcg+0x31/0x31
kernel: [  120.765550]  ret_from_fork+0x22/0x30
...
kernel: [  120.765867] Showing all locks held in the system:
...
kernel: [  120.766164] 5 locks held by wpa_supplicant/924:
kernel: [  120.766172]  #0: ffffffffb1e63eb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x36
kernel: [  120.766197]  #1: ffffffffb1e5b1c8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x2a/0x15c [cfg80211]
kernel: [  120.766238]  #2: ffff99f08347cd08 (&wdev->mtx){+.+.}-{3:3}, at: nl80211_deauthenticate+0xde/0x123 [cfg80211]
kernel: [  120.766279]  #3: ffff99f09df12a48 (&local->mtx){+.+.}-{3:3}, at: ieee80211_destroy_auth_data+0x9b/0xe6 [mac80211]
kernel: [  120.766321]  #4: ffff99f09df12ce0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_vif_release_channel+0x5e/0x81 [mac80211]
...
kernel: [  120.766585] 3 locks held by kworker/u32:26/4239:
kernel: [  120.766593]  #0: ffff99f04458f948 ((wq_completion)phy0){+.+.}-{0:0}, at: process_one_work+0x19a/0x504
kernel: [  120.766621]  #1: ffffbad54b3cfe50 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x1c0/0x504
kernel: [  120.766649]  #2: ffff99f08347cd08 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_sta_work+0x3e/0x1232 [mac80211]

With above info the issue is clear: First wmi_mgmt_tx_work is inserted
to local->workqueue after sdata->work inserted, then wpa_supplicant
acquires wdev->mtx in nl80211_deauthenticate and finally calls
ath11k_mac_op_flush where it waits all mgmt. frames to be sent out by
wmi_mgmt_tx_work. Meanwhile, sdata->work is blocked by wdev->mtx in
ieee80211_sta_work, as a result wmi_mgmt_tx_work has no chance to run.

Change to use ab->workqueue instead of local->workqueue to fix this issue.

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220217084545.18844-1-quic_bqiang@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/mac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 07f499d5ec92..36be4ec969ad 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -5566,7 +5566,7 @@ static int ath11k_mac_mgmt_tx(struct ath11k *ar, struct sk_buff *skb,
 
 	skb_queue_tail(q, skb);
 	atomic_inc(&ar->num_pending_mgmt_tx);
-	ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
+	queue_work(ar->ab->workqueue, &ar->wmi_mgmt_tx_work);
 
 	return 0;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 087/149] ipv4: Invalidate neighbour for broadcast address upon address addition

[Sasha Levin]

From: Ido Schimmel <idosch@nvidia.com>

[ Upstream commit 0c51e12e218f20b7d976158fdc18019627326f7a ]

In case user space sends a packet destined to a broadcast address when a
matching broadcast route is not configured, the kernel will create a
unicast neighbour entry that will never be resolved [1].

When the broadcast route is configured, the unicast neighbour entry will
not be invalidated and continue to linger, resulting in packets being
dropped.

Solve this by invalidating unresolved neighbour entries for broadcast
addresses after routes for these addresses are internally configured by
the kernel. This allows the kernel to create a broadcast neighbour entry
following the next route lookup.

Another possible solution that is more generic but also more complex is
to have the ARP code register a listener to the FIB notification chain
and invalidate matching neighbour entries upon the addition of broadcast
routes.

It is also possible to wave off the issue as a user space problem, but
it seems a bit excessive to expect user space to be that intimately
familiar with the inner workings of the FIB/neighbour kernel code.

[1] https://lore.kernel.org/netdev/55a04a8f-56f3-f73c-2aea-2195923f09d1@huawei.com/

Reported-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/arp.h       | 1 +
 net/ipv4/arp.c          | 9 +++++++--
 net/ipv4/fib_frontend.c | 5 ++++-
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/include/net/arp.h b/include/net/arp.h
index 031374ac2f22..d7ef4ec71dfe 100644
--- a/include/net/arp.h
+++ b/include/net/arp.h
@@ -65,6 +65,7 @@ void arp_send(int type, int ptype, __be32 dest_ip,
 	      const unsigned char *src_hw, const unsigned char *th);
 int arp_mc_map(__be32 addr, u8 *haddr, struct net_device *dev, int dir);
 void arp_ifdown(struct net_device *dev);
+int arp_invalidate(struct net_device *dev, __be32 ip, bool force);
 
 struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
 			   struct net_device *dev, __be32 src_ip,
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 4db0325f6e1a..dc28f0588e54 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1116,13 +1116,18 @@ static int arp_req_get(struct arpreq *r, struct net_device *dev)
 	return err;
 }
 
-static int arp_invalidate(struct net_device *dev, __be32 ip)
+int arp_invalidate(struct net_device *dev, __be32 ip, bool force)
 {
 	struct neighbour *neigh = neigh_lookup(&arp_tbl, &ip, dev);
 	int err = -ENXIO;
 	struct neigh_table *tbl = &arp_tbl;
 
 	if (neigh) {
+		if ((neigh->nud_state & NUD_VALID) && !force) {
+			neigh_release(neigh);
+			return 0;
+		}
+
 		if (neigh->nud_state & ~NUD_NOARP)
 			err = neigh_update(neigh, NULL, NUD_FAILED,
 					   NEIGH_UPDATE_F_OVERRIDE|
@@ -1169,7 +1174,7 @@ static int arp_req_delete(struct net *net, struct arpreq *r,
 		if (!dev)
 			return -EINVAL;
 	}
-	return arp_invalidate(dev, ip);
+	return arp_invalidate(dev, ip, true);
 }
 
 /*
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 85117b45216d..89a5a4875595 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1115,9 +1115,11 @@ void fib_add_ifaddr(struct in_ifaddr *ifa)
 		return;
 
 	/* Add broadcast address, if it is explicitly assigned. */
-	if (ifa->ifa_broadcast && ifa->ifa_broadcast != htonl(0xFFFFFFFF))
+	if (ifa->ifa_broadcast && ifa->ifa_broadcast != htonl(0xFFFFFFFF)) {
 		fib_magic(RTM_NEWROUTE, RTN_BROADCAST, ifa->ifa_broadcast, 32,
 			  prim, 0);
+		arp_invalidate(dev, ifa->ifa_broadcast, false);
+	}
 
 	if (!ipv4_is_zeronet(prefix) && !(ifa->ifa_flags & IFA_F_SECONDARY) &&
 	    (prefix != addr || ifa->ifa_prefixlen < 32)) {
@@ -1131,6 +1133,7 @@ void fib_add_ifaddr(struct in_ifaddr *ifa)
 		if (ifa->ifa_prefixlen < 31) {
 			fib_magic(RTM_NEWROUTE, RTN_BROADCAST, prefix | ~mask,
 				  32, prim, 0);
+			arp_invalidate(dev, prefix | ~mask, false);
 		}
 	}
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 088/149] rtw88: change rtw_info() to proper message level

[Sasha Levin]

From: Ping-Ke Shih <pkshih@realtek.com>

[ Upstream commit a0061be4e54b52e5e4ff179c3f817107ddbb2830 ]

Larry reported funny log entries [1] when he used rtl8821ce. These
messages are not harmless, but not useful for users, so change them to
rtw_dbg() level. By the way, I review all rtw_info() and change others
to rtw_warn().

[1] https://lore.kernel.org/linux-wireless/c356d5ae-a7b3-3065-1121-64c446e70333@lwfinger.net/

Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220218035527.9835-1-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtw88/debug.c    | 2 +-
 drivers/net/wireless/realtek/rtw88/debug.h    | 1 +
 drivers/net/wireless/realtek/rtw88/fw.c       | 2 +-
 drivers/net/wireless/realtek/rtw88/mac80211.c | 8 ++++----
 drivers/net/wireless/realtek/rtw88/main.c     | 8 ++++----
 drivers/net/wireless/realtek/rtw88/rtw8821c.c | 2 +-
 drivers/net/wireless/realtek/rtw88/rtw8822b.c | 4 ++--
 drivers/net/wireless/realtek/rtw88/rtw8822c.c | 4 ++--
 drivers/net/wireless/realtek/rtw88/sar.c      | 8 ++++----
 9 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw88/debug.c b/drivers/net/wireless/realtek/rtw88/debug.c
index e429428232c1..e7e9f17df96a 100644
--- a/drivers/net/wireless/realtek/rtw88/debug.c
+++ b/drivers/net/wireless/realtek/rtw88/debug.c
@@ -390,7 +390,7 @@ static ssize_t rtw_debugfs_set_h2c(struct file *filp,
 		     &param[0], &param[1], &param[2], &param[3],
 		     &param[4], &param[5], &param[6], &param[7]);
 	if (num != 8) {
-		rtw_info(rtwdev, "invalid H2C command format for debug\n");
+		rtw_warn(rtwdev, "invalid H2C command format for debug\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/wireless/realtek/rtw88/debug.h b/drivers/net/wireless/realtek/rtw88/debug.h
index 61f8369fe2d6..066792dd96af 100644
--- a/drivers/net/wireless/realtek/rtw88/debug.h
+++ b/drivers/net/wireless/realtek/rtw88/debug.h
@@ -23,6 +23,7 @@ enum rtw_debug_mask {
 	RTW_DBG_PATH_DIV	= 0x00004000,
 	RTW_DBG_ADAPTIVITY	= 0x00008000,
 	RTW_DBG_HW_SCAN		= 0x00010000,
+	RTW_DBG_STATE		= 0x00020000,
 
 	RTW_DBG_ALL		= 0xffffffff
 };
diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c
index 2f7c036f9022..08437df0f0ed 100644
--- a/drivers/net/wireless/realtek/rtw88/fw.c
+++ b/drivers/net/wireless/realtek/rtw88/fw.c
@@ -2109,7 +2109,7 @@ void rtw_hw_scan_status_report(struct rtw_dev *rtwdev, struct sk_buff *skb)
 	rtw_hw_scan_complete(rtwdev, vif, aborted);
 
 	if (aborted)
-		rtw_info(rtwdev, "HW scan aborted with code: %d\n", rc);
+		rtw_dbg(rtwdev, RTW_DBG_HW_SCAN, "HW scan aborted with code: %d\n", rc);
 }
 
 void rtw_store_op_chan(struct rtw_dev *rtwdev)
diff --git a/drivers/net/wireless/realtek/rtw88/mac80211.c b/drivers/net/wireless/realtek/rtw88/mac80211.c
index ae7d97de5fdf..2933a8be1a18 100644
--- a/drivers/net/wireless/realtek/rtw88/mac80211.c
+++ b/drivers/net/wireless/realtek/rtw88/mac80211.c
@@ -205,7 +205,7 @@ static int rtw_ops_add_interface(struct ieee80211_hw *hw,
 
 	mutex_unlock(&rtwdev->mutex);
 
-	rtw_info(rtwdev, "start vif %pM on port %d\n", vif->addr, rtwvif->port);
+	rtw_dbg(rtwdev, RTW_DBG_STATE, "start vif %pM on port %d\n", vif->addr, rtwvif->port);
 	return 0;
 }
 
@@ -216,7 +216,7 @@ static void rtw_ops_remove_interface(struct ieee80211_hw *hw,
 	struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
 	u32 config = 0;
 
-	rtw_info(rtwdev, "stop vif %pM on port %d\n", vif->addr, rtwvif->port);
+	rtw_dbg(rtwdev, RTW_DBG_STATE, "stop vif %pM on port %d\n", vif->addr, rtwvif->port);
 
 	mutex_lock(&rtwdev->mutex);
 
@@ -242,8 +242,8 @@ static int rtw_ops_change_interface(struct ieee80211_hw *hw,
 {
 	struct rtw_dev *rtwdev = hw->priv;
 
-	rtw_info(rtwdev, "change vif %pM (%d)->(%d), p2p (%d)->(%d)\n",
-		 vif->addr, vif->type, type, vif->p2p, p2p);
+	rtw_dbg(rtwdev, RTW_DBG_STATE, "change vif %pM (%d)->(%d), p2p (%d)->(%d)\n",
+		vif->addr, vif->type, type, vif->p2p, p2p);
 
 	rtw_ops_remove_interface(hw, vif);
 
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 38252113c4a8..20b85af7bd3e 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -305,8 +305,8 @@ int rtw_sta_add(struct rtw_dev *rtwdev, struct ieee80211_sta *sta,
 
 	rtwdev->sta_cnt++;
 	rtwdev->beacon_loss = false;
-	rtw_info(rtwdev, "sta %pM joined with macid %d\n",
-		 sta->addr, si->mac_id);
+	rtw_dbg(rtwdev, RTW_DBG_STATE, "sta %pM joined with macid %d\n",
+		sta->addr, si->mac_id);
 
 	return 0;
 }
@@ -327,8 +327,8 @@ void rtw_sta_remove(struct rtw_dev *rtwdev, struct ieee80211_sta *sta,
 	kfree(si->mask);
 
 	rtwdev->sta_cnt--;
-	rtw_info(rtwdev, "sta %pM with macid %d left\n",
-		 sta->addr, si->mac_id);
+	rtw_dbg(rtwdev, RTW_DBG_STATE, "sta %pM with macid %d left\n",
+		sta->addr, si->mac_id);
 }
 
 struct rtw_fwcd_hdr {
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
index db078df63f85..80d4761796b1 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
@@ -499,7 +499,7 @@ static s8 get_cck_rx_pwr(struct rtw_dev *rtwdev, u8 lna_idx, u8 vga_idx)
 	}
 
 	if (lna_idx >= lna_gain_table_size) {
-		rtw_info(rtwdev, "incorrect lna index (%d)\n", lna_idx);
+		rtw_warn(rtwdev, "incorrect lna index (%d)\n", lna_idx);
 		return -120;
 	}
 
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
index dd4fbb82750d..a23806b69b0f 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
@@ -1012,12 +1012,12 @@ static int rtw8822b_set_antenna(struct rtw_dev *rtwdev,
 		antenna_tx, antenna_rx);
 
 	if (!rtw8822b_check_rf_path(antenna_tx)) {
-		rtw_info(rtwdev, "unsupported tx path 0x%x\n", antenna_tx);
+		rtw_warn(rtwdev, "unsupported tx path 0x%x\n", antenna_tx);
 		return -EINVAL;
 	}
 
 	if (!rtw8822b_check_rf_path(antenna_rx)) {
-		rtw_info(rtwdev, "unsupported rx path 0x%x\n", antenna_rx);
+		rtw_warn(rtwdev, "unsupported rx path 0x%x\n", antenna_rx);
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index 35c46e5209de..ddf4d1a23e60 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -2798,7 +2798,7 @@ static int rtw8822c_set_antenna(struct rtw_dev *rtwdev,
 	case BB_PATH_AB:
 		break;
 	default:
-		rtw_info(rtwdev, "unsupported tx path 0x%x\n", antenna_tx);
+		rtw_warn(rtwdev, "unsupported tx path 0x%x\n", antenna_tx);
 		return -EINVAL;
 	}
 
@@ -2808,7 +2808,7 @@ static int rtw8822c_set_antenna(struct rtw_dev *rtwdev,
 	case BB_PATH_AB:
 		break;
 	default:
-		rtw_info(rtwdev, "unsupported rx path 0x%x\n", antenna_rx);
+		rtw_warn(rtwdev, "unsupported rx path 0x%x\n", antenna_rx);
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/wireless/realtek/rtw88/sar.c b/drivers/net/wireless/realtek/rtw88/sar.c
index 3383726c4d90..c472f1502b82 100644
--- a/drivers/net/wireless/realtek/rtw88/sar.c
+++ b/drivers/net/wireless/realtek/rtw88/sar.c
@@ -91,10 +91,10 @@ int rtw_set_sar_specs(struct rtw_dev *rtwdev,
 			return -EINVAL;
 
 		power = sar->sub_specs[i].power;
-		rtw_info(rtwdev, "On freq %u to %u, set SAR %d in 1/%lu dBm\n",
-			 rtw_common_sar_freq_ranges[idx].start_freq,
-			 rtw_common_sar_freq_ranges[idx].end_freq,
-			 power, BIT(RTW_COMMON_SAR_FCT));
+		rtw_dbg(rtwdev, RTW_DBG_REGD, "On freq %u to %u, set SAR %d in 1/%lu dBm\n",
+			rtw_common_sar_freq_ranges[idx].start_freq,
+			rtw_common_sar_freq_ranges[idx].end_freq,
+			power, BIT(RTW_COMMON_SAR_FCT));
 
 		for (j = 0; j < RTW_RF_PATH_MAX; j++) {
 			for (k = 0; k < RTW_RATE_SECTION_MAX; k++) {
-- 
2.34.1

[PATCH AUTOSEL 5.17 089/149] dm ioctl: prevent potential spectre v1 gadget

[Sasha Levin]

From: Jordy Zomer <jordy@jordyzomer.github.io>

[ Upstream commit cd9c88da171a62c4b0f1c70e50c75845969fbc18 ]

It appears like cmd could be a Spectre v1 gadget as it's supplied by a
user and used as an array index. Prevent the contents of kernel memory
from being leaked to userspace via speculative execution by using
array_index_nospec.

Signed-off-by: Jordy Zomer <jordy@pwning.systems>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-ioctl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 21fe8652b095..901abd6dea41 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -18,6 +18,7 @@
 #include <linux/dm-ioctl.h>
 #include <linux/hdreg.h>
 #include <linux/compat.h>
+#include <linux/nospec.h>
 
 #include <linux/uaccess.h>
 #include <linux/ima.h>
@@ -1788,6 +1789,7 @@ static ioctl_fn lookup_ioctl(unsigned int cmd, int *ioctl_flags)
 	if (unlikely(cmd >= ARRAY_SIZE(_ioctls)))
 		return NULL;
 
+	cmd = array_index_nospec(cmd, ARRAY_SIZE(_ioctls));
 	*ioctl_flags = _ioctls[cmd].flags;
 	return _ioctls[cmd].fn;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 090/149] dm: requeue IO if mapping table not yet available

[Sasha Levin]

From: Mike Snitzer <snitzer@redhat.com>

[ Upstream commit fa247089de9936a46e290d4724cb5f0b845600f5 ]

Update both bio-based and request-based DM to requeue IO if the
mapping table not available.

This race of IO being submitted before the DM device ready is so
narrow, yet possible for initial table load given that the DM device's
request_queue is created prior, that it best to requeue IO to handle
this unlikely case.

Reported-by: Zhang Yi <yi.zhang@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-rq.c |  7 ++++++-
 drivers/md/dm.c    | 11 +++--------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 579ab6183d4d..dffeb47a9efb 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -499,8 +499,13 @@ static blk_status_t dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
 
 	if (unlikely(!ti)) {
 		int srcu_idx;
-		struct dm_table *map = dm_get_live_table(md, &srcu_idx);
+		struct dm_table *map;
 
+		map = dm_get_live_table(md, &srcu_idx);
+		if (unlikely(!map)) {
+			dm_put_live_table(md, srcu_idx);
+			return BLK_STS_RESOURCE;
+		}
 		ti = dm_table_find_target(map, 0);
 		dm_put_live_table(md, srcu_idx);
 	}
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 997ace47bbd5..3ff50d315a41 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1495,15 +1495,10 @@ static void dm_submit_bio(struct bio *bio)
 	struct dm_table *map;
 
 	map = dm_get_live_table(md, &srcu_idx);
-	if (unlikely(!map)) {
-		DMERR_LIMIT("%s: mapping table unavailable, erroring io",
-			    dm_device_name(md));
-		bio_io_error(bio);
-		goto out;
-	}
 
-	/* If suspended, queue this IO for later */
-	if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags))) {
+	/* If suspended, or map not yet available, queue this IO for later */
+	if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) ||
+	    unlikely(!map)) {
 		if (bio->bi_opf & REQ_NOWAIT)
 			bio_wouldblock_error(bio);
 		else if (bio->bi_opf & REQ_RAHEAD)
-- 
2.34.1

[PATCH AUTOSEL 5.17 091/149] drm/amdkfd: make CRAT table missing message informational only

[Sasha Levin]

From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit 9dff13f9edf755a15f6507874185a3290c1ae8bb ]

The driver has a fallback so make the message informational
rather than a warning. The driver has a fallback if the
Component Resource Association Table (CRAT) is missing, so
make this informational now.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1906
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_crat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
index 9624bbe8b501..281def1c6c08 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
@@ -1567,7 +1567,7 @@ int kfd_create_crat_image_acpi(void **crat_image, size_t *size)
 	/* Fetch the CRAT table from ACPI */
 	status = acpi_get_table(CRAT_SIGNATURE, 0, &crat_table);
 	if (status == AE_NOT_FOUND) {
-		pr_warn("CRAT table not found\n");
+		pr_info("CRAT table not found\n");
 		return -ENODATA;
 	} else if (ACPI_FAILURE(status)) {
 		const char *err = acpi_format_exception(status);
-- 
2.34.1

[PATCH AUTOSEL 5.17 092/149] vfio/pci: Stub vfio_pci_vga_rw when !CONFIG_VFIO_PCI_VGA

[Sasha Levin]

From: Alex Williamson <alex.williamson@redhat.com>

[ Upstream commit 6e031ec0e5a2dda53e12e0d2a7e9b15b47a3c502 ]

Resolve build errors reported against UML build for undefined
ioport_map() and ioport_unmap() functions.  Without this config
option a device cannot have vfio_pci_core_device.has_vga set,
so the existing function would always return -EINVAL anyway.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20220123125737.2658758-1-geert@linux-m68k.org
Link: https://lore.kernel.org/r/164306582968.3758255.15192949639574660648.stgit@omen
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/vfio/pci/vfio_pci_rdwr.c | 2 ++
 include/linux/vfio_pci_core.h    | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/drivers/vfio/pci/vfio_pci_rdwr.c b/drivers/vfio/pci/vfio_pci_rdwr.c
index 57d3b2cbbd8e..82ac1569deb0 100644
--- a/drivers/vfio/pci/vfio_pci_rdwr.c
+++ b/drivers/vfio/pci/vfio_pci_rdwr.c
@@ -288,6 +288,7 @@ ssize_t vfio_pci_bar_rw(struct vfio_pci_core_device *vdev, char __user *buf,
 	return done;
 }
 
+#ifdef CONFIG_VFIO_PCI_VGA
 ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, char __user *buf,
 			       size_t count, loff_t *ppos, bool iswrite)
 {
@@ -355,6 +356,7 @@ ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, char __user *buf,
 
 	return done;
 }
+#endif
 
 static void vfio_pci_ioeventfd_do_write(struct vfio_pci_ioeventfd *ioeventfd,
 					bool test_mem)
diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h
index ef9a44b6cf5d..ae6f4838ab75 100644
--- a/include/linux/vfio_pci_core.h
+++ b/include/linux/vfio_pci_core.h
@@ -159,8 +159,17 @@ extern ssize_t vfio_pci_config_rw(struct vfio_pci_core_device *vdev,
 extern ssize_t vfio_pci_bar_rw(struct vfio_pci_core_device *vdev, char __user *buf,
 			       size_t count, loff_t *ppos, bool iswrite);
 
+#ifdef CONFIG_VFIO_PCI_VGA
 extern ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, char __user *buf,
 			       size_t count, loff_t *ppos, bool iswrite);
+#else
+static inline ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev,
+				      char __user *buf, size_t count,
+				      loff_t *ppos, bool iswrite)
+{
+	return -EINVAL;
+}
+#endif
 
 extern long vfio_pci_ioeventfd(struct vfio_pci_core_device *vdev, loff_t offset,
 			       uint64_t data, int count, int fd);
-- 
2.34.1

[PATCH AUTOSEL 5.17 093/149] scsi: pm8001: Fix pm80xx_pci_mem_copy() interface

[Sasha Levin]

From: Damien Le Moal <damien.lemoal@opensource.wdc.com>

[ Upstream commit 3762d8f6edcdb03994c919f9487fd6d336c06561 ]

The declaration of the local variable destination1 in pm80xx_pci_mem_copy()
as a pointer to a u32 results in the sparse warning:

warning: incorrect type in assignment (different base types)
    expected unsigned int [usertype]
    got restricted __le32 [usertype]

Furthermore, the destination" argument of pm80xx_pci_mem_copy() is wrongly
declared with the const attribute.

Fix both problems by changing the type of the "destination" argument to
"__le32 *" and use this argument directly inside the pm80xx_pci_mem_copy()
function, thus removing the need for the destination1 local variable.

Link: https://lore.kernel.org/r/20220220031810.738362-6-damien.lemoal@opensource.wdc.com
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm80xx_hwi.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 9d20f8009b89..f6b9253e626b 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -67,18 +67,16 @@ int pm80xx_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shift_value)
 }
 
 static void pm80xx_pci_mem_copy(struct pm8001_hba_info  *pm8001_ha, u32 soffset,
-				const void *destination,
+				__le32 *destination,
 				u32 dw_count, u32 bus_base_number)
 {
 	u32 index, value, offset;
-	u32 *destination1;
-	destination1 = (u32 *)destination;
 
-	for (index = 0; index < dw_count; index += 4, destination1++) {
+	for (index = 0; index < dw_count; index += 4, destination++) {
 		offset = (soffset + index);
 		if (offset < (64 * 1024)) {
 			value = pm8001_cr32(pm8001_ha, bus_base_number, offset);
-			*destination1 =  cpu_to_le32(value);
+			*destination = cpu_to_le32(value);
 		}
 	}
 	return;
-- 
2.34.1

[PATCH AUTOSEL 5.17 094/149] scsi: pm8001: Fix pm8001_mpi_task_abort_resp()

[Sasha Levin]

From: Damien Le Moal <damien.lemoal@opensource.wdc.com>

[ Upstream commit 7e6b7e740addcea450041b5be8e42f0a4ceece0f ]

The call to pm8001_ccb_task_free() at the end of
pm8001_mpi_task_abort_resp() already frees the ccb tag. So when the device
NCQ_ABORT_ALL_FLAG is set, the tag should not be freed again.  Also change
the hardcoded 0xBFFFFFFF value to ~NCQ_ABORT_ALL_FLAG as it ought to be.

Link: https://lore.kernel.org/r/20220220031810.738362-19-damien.lemoal@opensource.wdc.com
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 9ec310b795c3..da9cac6671a3 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -3703,12 +3703,11 @@ int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	mb();
 
 	if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
-		pm8001_tag_free(pm8001_ha, tag);
 		sas_free_task(t);
-		/* clear the flag */
-		pm8001_dev->id &= 0xBFFFFFFF;
-	} else
+		pm8001_dev->id &= ~NCQ_ABORT_ALL_FLAG;
+	} else {
 		t->task_done(t);
+	}
 
 	return 0;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 095/149] scsi: pm8001: Fix tag values handling

[Sasha Levin]

From: Damien Le Moal <damien.lemoal@opensource.wdc.com>

[ Upstream commit 7fb23a785ba38dea907323a039123f231195b297 ]

The function pm8001_tag_alloc() determines free tags using the function
find_first_zero_bit() which can return 0 when the first bit of the bitmap
being inspected is 0. As such, tag 0 is a valid tag value that should not
be dismissed as invalid. Fix the functions pm8001_work_fn(),
mpi_sata_completion(), pm8001_mpi_task_abort_resp() and
pm8001_open_reject_retry() to not dismiss 0 tags as invalid.

The value 0xffffffff is used for invalid tags for unused ccb information
structures. Add the macro definition PM8001_INVALID_TAG to define this
value.

Link: https://lore.kernel.org/r/20220220031810.738362-20-damien.lemoal@opensource.wdc.com
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm8001_hwi.c  | 52 +++++++++++--------------------
 drivers/scsi/pm8001/pm8001_init.c |  3 +-
 drivers/scsi/pm8001/pm8001_sas.c  | 13 ++++----
 drivers/scsi/pm8001/pm8001_sas.h  |  2 ++
 drivers/scsi/pm8001/pm80xx_hwi.c  |  5 ---
 5 files changed, 28 insertions(+), 47 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index da9cac6671a3..e12b3ea4153a 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -1522,7 +1522,6 @@ void pm8001_work_fn(struct work_struct *work)
 	case IO_XFER_ERROR_BREAK:
 	{	/* This one stashes the sas_task instead */
 		struct sas_task *t = (struct sas_task *)pm8001_dev;
-		u32 tag;
 		struct pm8001_ccb_info *ccb;
 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
 		unsigned long flags, flags1;
@@ -1544,8 +1543,8 @@ void pm8001_work_fn(struct work_struct *work)
 		/* Search for a possible ccb that matches the task */
 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
 			ccb = &pm8001_ha->ccb_info[i];
-			tag = ccb->ccb_tag;
-			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
+			if ((ccb->ccb_tag != PM8001_INVALID_TAG) &&
+			    (ccb->task == t))
 				break;
 		}
 		if (!ccb) {
@@ -1567,11 +1566,11 @@ void pm8001_work_fn(struct work_struct *work)
 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
 			pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with event 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
 				   t, pw->handler, ts->resp, ts->stat);
-			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+			pm8001_ccb_task_free(pm8001_ha, t, ccb, ccb->ccb_tag);
 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
 		} else {
 			spin_unlock_irqrestore(&t->task_state_lock, flags1);
-			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+			pm8001_ccb_task_free(pm8001_ha, t, ccb, ccb->ccb_tag);
 			mb();/* in order to force CPU ordering */
 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
 			t->task_done(t);
@@ -1580,7 +1579,6 @@ void pm8001_work_fn(struct work_struct *work)
 	case IO_XFER_OPEN_RETRY_TIMEOUT:
 	{	/* This one stashes the sas_task instead */
 		struct sas_task *t = (struct sas_task *)pm8001_dev;
-		u32 tag;
 		struct pm8001_ccb_info *ccb;
 		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
 		unsigned long flags, flags1;
@@ -1614,8 +1612,8 @@ void pm8001_work_fn(struct work_struct *work)
 		/* Search for a possible ccb that matches the task */
 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
 			ccb = &pm8001_ha->ccb_info[i];
-			tag = ccb->ccb_tag;
-			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
+			if ((ccb->ccb_tag != PM8001_INVALID_TAG) &&
+			    (ccb->task == t))
 				break;
 		}
 		if (!ccb) {
@@ -1686,19 +1684,13 @@ void pm8001_work_fn(struct work_struct *work)
 		struct task_status_struct *ts;
 		struct sas_task *task;
 		int i;
-		u32 tag, device_id;
+		u32 device_id;
 
 		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
 			ccb = &pm8001_ha->ccb_info[i];
 			task = ccb->task;
 			ts = &task->task_status;
-			tag = ccb->ccb_tag;
-			/* check if tag is NULL */
-			if (!tag) {
-				pm8001_dbg(pm8001_ha, FAIL,
-					"tag Null\n");
-				continue;
-			}
+
 			if (task != NULL) {
 				dev = task->dev;
 				if (!dev) {
@@ -1707,10 +1699,11 @@ void pm8001_work_fn(struct work_struct *work)
 					continue;
 				}
 				/*complete sas task and update to top layer */
-				pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
+				pm8001_ccb_task_free(pm8001_ha, task, ccb,
+						     ccb->ccb_tag);
 				ts->resp = SAS_TASK_COMPLETE;
 				task->task_done(task);
-			} else if (tag != 0xFFFFFFFF) {
+			} else if (ccb->ccb_tag != PM8001_INVALID_TAG) {
 				/* complete the internal commands/non-sas task */
 				pm8001_dev = ccb->device;
 				if (pm8001_dev->dcompletion) {
@@ -1718,7 +1711,7 @@ void pm8001_work_fn(struct work_struct *work)
 					pm8001_dev->dcompletion = NULL;
 				}
 				complete(pm8001_ha->nvmd_completion);
-				pm8001_tag_free(pm8001_ha, tag);
+				pm8001_tag_free(pm8001_ha, ccb->ccb_tag);
 			}
 		}
 		/* Deregister all the device ids  */
@@ -2314,11 +2307,6 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	param = le32_to_cpu(psataPayload->param);
 	tag = le32_to_cpu(psataPayload->tag);
 
-	if (!tag) {
-		pm8001_dbg(pm8001_ha, FAIL, "tag null\n");
-		return;
-	}
-
 	ccb = &pm8001_ha->ccb_info[tag];
 	t = ccb->task;
 	pm8001_dev = ccb->device;
@@ -3053,7 +3041,7 @@ void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
 		   device_id, pds, nds, status);
 	complete(pm8001_dev->setds_completion);
 	ccb->task = NULL;
-	ccb->ccb_tag = 0xFFFFFFFF;
+	ccb->ccb_tag = PM8001_INVALID_TAG;
 	pm8001_tag_free(pm8001_ha, tag);
 }
 
@@ -3071,7 +3059,7 @@ void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 				dlen_status);
 	}
 	ccb->task = NULL;
-	ccb->ccb_tag = 0xFFFFFFFF;
+	ccb->ccb_tag = PM8001_INVALID_TAG;
 	pm8001_tag_free(pm8001_ha, tag);
 }
 
@@ -3098,7 +3086,7 @@ pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 		 * freed by requesting path anywhere.
 		 */
 		ccb->task = NULL;
-		ccb->ccb_tag = 0xFFFFFFFF;
+		ccb->ccb_tag = PM8001_INVALID_TAG;
 		pm8001_tag_free(pm8001_ha, tag);
 		return;
 	}
@@ -3144,7 +3132,7 @@ pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	complete(pm8001_ha->nvmd_completion);
 	pm8001_dbg(pm8001_ha, MSG, "Get nvmd data complete!\n");
 	ccb->task = NULL;
-	ccb->ccb_tag = 0xFFFFFFFF;
+	ccb->ccb_tag = PM8001_INVALID_TAG;
 	pm8001_tag_free(pm8001_ha, tag);
 }
 
@@ -3557,7 +3545,7 @@ int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	}
 	complete(pm8001_dev->dcompletion);
 	ccb->task = NULL;
-	ccb->ccb_tag = 0xFFFFFFFF;
+	ccb->ccb_tag = PM8001_INVALID_TAG;
 	pm8001_tag_free(pm8001_ha, htag);
 	return 0;
 }
@@ -3629,7 +3617,7 @@ int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
 	}
 	kfree(ccb->fw_control_context);
 	ccb->task = NULL;
-	ccb->ccb_tag = 0xFFFFFFFF;
+	ccb->ccb_tag = PM8001_INVALID_TAG;
 	pm8001_tag_free(pm8001_ha, tag);
 	complete(pm8001_ha->nvmd_completion);
 	return 0;
@@ -3665,10 +3653,6 @@ int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 
 	status = le32_to_cpu(pPayload->status);
 	tag = le32_to_cpu(pPayload->tag);
-	if (!tag) {
-		pm8001_dbg(pm8001_ha, FAIL, " TAG NULL. RETURNING !!!\n");
-		return -1;
-	}
 
 	scp = le32_to_cpu(pPayload->scp);
 	ccb = &pm8001_ha->ccb_info[tag];
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index d8a2121cb8d9..d2a2593f669d 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -1216,10 +1216,11 @@ pm8001_init_ccb_tag(struct pm8001_hba_info *pm8001_ha, struct Scsi_Host *shost,
 			goto err_out;
 		}
 		pm8001_ha->ccb_info[i].task = NULL;
-		pm8001_ha->ccb_info[i].ccb_tag = 0xffffffff;
+		pm8001_ha->ccb_info[i].ccb_tag = PM8001_INVALID_TAG;
 		pm8001_ha->ccb_info[i].device = NULL;
 		++pm8001_ha->tags_num;
 	}
+
 	return 0;
 
 err_out_noccb:
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 32edda3e55c6..c1f871561b32 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -567,7 +567,7 @@ void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
 
 	task->lldd_task = NULL;
 	ccb->task = NULL;
-	ccb->ccb_tag = 0xFFFFFFFF;
+	ccb->ccb_tag = PM8001_INVALID_TAG;
 	ccb->open_retry = 0;
 	pm8001_tag_free(pm8001_ha, ccb_idx);
 }
@@ -952,9 +952,11 @@ void pm8001_open_reject_retry(
 		struct task_status_struct *ts;
 		struct pm8001_device *pm8001_dev;
 		unsigned long flags1;
-		u32 tag;
 		struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[i];
 
+		if (ccb->ccb_tag == PM8001_INVALID_TAG)
+			continue;
+
 		pm8001_dev = ccb->device;
 		if (!pm8001_dev || (pm8001_dev->dev_type == SAS_PHY_UNUSED))
 			continue;
@@ -966,9 +968,6 @@ void pm8001_open_reject_retry(
 				continue;
 		} else if (pm8001_dev != device_to_close)
 			continue;
-		tag = ccb->ccb_tag;
-		if (!tag || (tag == 0xFFFFFFFF))
-			continue;
 		task = ccb->task;
 		if (!task || !task->task_done)
 			continue;
@@ -989,11 +988,11 @@ void pm8001_open_reject_retry(
 				& SAS_TASK_STATE_ABORTED))) {
 			spin_unlock_irqrestore(&task->task_state_lock,
 				flags1);
-			pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
+			pm8001_ccb_task_free(pm8001_ha, task, ccb, ccb->ccb_tag);
 		} else {
 			spin_unlock_irqrestore(&task->task_state_lock,
 				flags1);
-			pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
+			pm8001_ccb_task_free(pm8001_ha, task, ccb, ccb->ccb_tag);
 			mb();/* in order to force CPU ordering */
 			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
 			task->task_done(task);
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index a17da1cebce1..1791cdf30276 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -738,6 +738,8 @@ void pm8001_free_dev(struct pm8001_device *pm8001_dev);
 /* ctl shared API */
 extern const struct attribute_group *pm8001_host_groups[];
 
+#define PM8001_INVALID_TAG	((u32)-1)
+
 static inline void
 pm8001_ccb_task_free_done(struct pm8001_hba_info *pm8001_ha,
 			struct sas_task *task, struct pm8001_ccb_info *ccb,
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index f6b9253e626b..00c95ea480ad 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -2402,11 +2402,6 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha,
 	param = le32_to_cpu(psataPayload->param);
 	tag = le32_to_cpu(psataPayload->tag);
 
-	if (!tag) {
-		pm8001_dbg(pm8001_ha, FAIL, "tag null\n");
-		return;
-	}
-
 	ccb = &pm8001_ha->ccb_info[tag];
 	t = ccb->task;
 	pm8001_dev = ccb->device;
-- 
2.34.1

[PATCH AUTOSEL 5.17 096/149] scsi: pm8001: Fix task leak in pm8001_send_abort_all()

[Sasha Levin]

From: Damien Le Moal <damien.lemoal@opensource.wdc.com>

[ Upstream commit f90a74892f3acf0cdec5844e90fc8686ca13e7d7 ]

In pm8001_send_abort_all(), make sure to free the allocated sas task
if pm8001_tag_alloc() or pm8001_mpi_build_cmd() fail.

Link: https://lore.kernel.org/r/20220220031810.738362-21-damien.lemoal@opensource.wdc.com
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index e12b3ea4153a..1cf3878b47f3 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -1765,7 +1765,6 @@ static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
 	}
 
 	task = sas_alloc_slow_task(GFP_ATOMIC);
-
 	if (!task) {
 		pm8001_dbg(pm8001_ha, FAIL, "cannot allocate task\n");
 		return;
@@ -1774,8 +1773,10 @@ static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
 	task->task_done = pm8001_task_done;
 
 	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
-	if (res)
+	if (res) {
+		sas_free_task(task);
 		return;
+	}
 
 	ccb = &pm8001_ha->ccb_info[ccb_tag];
 	ccb->device = pm8001_ha_dev;
@@ -1791,8 +1792,10 @@ static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
 
 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
 			sizeof(task_abort), 0);
-	if (ret)
+	if (ret) {
+		sas_free_task(task);
 		pm8001_tag_free(pm8001_ha, ccb_tag);
+	}
 
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 097/149] scsi: pm8001: Fix tag leaks on error

[Sasha Levin]

From: Damien Le Moal <damien.lemoal@opensource.wdc.com>

[ Upstream commit 4c8f04b1905cd4b776d0b720463c091545478ef7 ]

In pm8001_chip_set_dev_state_req(), pm8001_chip_fw_flash_update_req(),
pm80xx_chip_phy_ctl_req() and pm8001_chip_reg_dev_req() add missing calls
to pm8001_tag_free() to free the allocated tag when pm8001_mpi_build_cmd()
fails.

Similarly, in pm8001_exec_internal_task_abort(), if the chip ->task_abort
method fails, the tag allocated for the abort request task must be
freed. Add the missing call to pm8001_tag_free().

Link: https://lore.kernel.org/r/20220220031810.738362-22-damien.lemoal@opensource.wdc.com
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 9 +++++++++
 drivers/scsi/pm8001/pm8001_sas.c | 2 +-
 drivers/scsi/pm8001/pm80xx_hwi.c | 9 +++++++--
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 1cf3878b47f3..54db341455b9 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -4462,6 +4462,9 @@ static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
 		SAS_ADDR_SIZE);
 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
 			sizeof(payload), 0);
+	if (rc)
+		pm8001_tag_free(pm8001_ha, tag);
+
 	return rc;
 }
 
@@ -4874,6 +4877,9 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
 	ccb->ccb_tag = tag;
 	rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
 		tag);
+	if (rc)
+		pm8001_tag_free(pm8001_ha, tag);
+
 	return rc;
 }
 
@@ -4978,6 +4984,9 @@ pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
 	payload.nds = cpu_to_le32(state);
 	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
 			sizeof(payload), 0);
+	if (rc)
+		pm8001_tag_free(pm8001_ha, tag);
+
 	return rc;
 
 }
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index c1f871561b32..b68c8400ca15 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -847,10 +847,10 @@ pm8001_exec_internal_task_abort(struct pm8001_hba_info *pm8001_ha,
 
 		res = PM8001_CHIP_DISP->task_abort(pm8001_ha,
 			pm8001_dev, flag, task_tag, ccb_tag);
-
 		if (res) {
 			del_timer(&task->slow_task->timer);
 			pm8001_dbg(pm8001_ha, FAIL, "Executing internal task failed\n");
+			pm8001_tag_free(pm8001_ha, ccb_tag);
 			goto ex_err;
 		}
 		wait_for_completion(&task->slow_task->completion);
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 00c95ea480ad..075061cdfe52 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -4901,8 +4901,13 @@ static int pm80xx_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
 	payload.tag = cpu_to_le32(tag);
 	payload.phyop_phyid =
 		cpu_to_le32(((phy_op & 0xFF) << 8) | (phyId & 0xFF));
-	return pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
-			sizeof(payload), 0);
+
+	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
+				  sizeof(payload), 0);
+	if (rc)
+		pm8001_tag_free(pm8001_ha, tag);
+
+	return rc;
 }
 
 static u32 pm80xx_chip_is_our_interrupt(struct pm8001_hba_info *pm8001_ha)
-- 
2.34.1

[PATCH AUTOSEL 5.17 098/149] scsi: pm8001: Fix memory leak in pm8001_chip_fw_flash_update_req()

[Sasha Levin]

From: Damien Le Moal <damien.lemoal@opensource.wdc.com>

[ Upstream commit f792a3629f4c4aa4c3703d66b43ce1edcc3ec09a ]

In pm8001_chip_fw_flash_update_build(), if
pm8001_chip_fw_flash_update_build() fails, the struct fw_control_ex
allocated must be freed.

Link: https://lore.kernel.org/r/20220220031810.738362-23-damien.lemoal@opensource.wdc.com
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 54db341455b9..c87ed28794c9 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -4877,8 +4877,10 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
 	ccb->ccb_tag = tag;
 	rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
 		tag);
-	if (rc)
+	if (rc) {
+		kfree(fw_control_context);
 		pm8001_tag_free(pm8001_ha, tag);
+	}
 
 	return rc;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 099/149] mt76: mt7915: fix injected MPDU transmission to not use HW A-MSDU

[Sasha Levin]

From: Johan Almbladh <johan.almbladh@anyfinetworks.com>

[ Upstream commit 28225a6ef80ebf46c46e5fbd5b1ee231a0b2b5b7 ]

Before, the hardware would be allowed to transmit injected 802.11 MPDUs
as A-MSDU. This resulted in corrupted frames being transmitted. Now,
injected MPDUs are transmitted as-is, without A-MSDU.

The fix was verified with frame injection on MT7915 hardware, both with
and without the injected frame being encrypted.

If the hardware cannot do A-MSDU aggregation on MPDUs, this problem
would also be present in the TX path where mac80211 does the 802.11
encapsulation. However, I have not observed any such problem when
disabling IEEE80211_HW_SUPPORTS_TX_ENCAP_OFFLOAD to force that mode.
Therefore this fix is isolated to injected frames only.

The same A-MSDU logic is also present in the mt7921 driver, so it is
likely that this fix should be applied there too. I do not have access
to mt7921 hardware so I have not been able to test that.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index 48f115502282..31a792b62e1b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -1080,6 +1080,7 @@ mt7915_mac_write_txwi_80211(struct mt7915_dev *dev, __le32 *txwi,
 		val = MT_TXD3_SN_VALID |
 		      FIELD_PREP(MT_TXD3_SEQ, IEEE80211_SEQ_TO_SN(seqno));
 		txwi[3] |= cpu_to_le32(val);
+		txwi[7] &= ~cpu_to_le32(MT_TXD7_HW_AMSDU);
 	}
 
 	val = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
-- 
2.34.1

[PATCH AUTOSEL 5.17 100/149] drm/simpledrm: Add "panel orientation" property on non-upright mounted LCD panels

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 94fa115f7b28a3f02611499175e134f0a823b686 ]

Some devices use e.g. a portrait panel in a standard laptop casing made
for landscape panels. efifb calls drm_get_panel_orientation_quirk() and
sets fb_info.fbcon_rotate_hint to make fbcon rotate the console so that
it shows up-right instead of on its side.

When switching to simpledrm the fbcon renders on its side. Call the
drm_connector_set_panel_orientation_with_quirk() helper to add
a "panel orientation" property on devices listed in the quirk table,
to make the fbcon (and aware userspace apps) rotate the image to
display properly.

Cc: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220221220045.11958-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/tiny/simpledrm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index 04146da2d1d8..11576e0297e4 100644
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -798,6 +798,9 @@ static int simpledrm_device_init_modeset(struct simpledrm_device *sdev)
 	if (ret)
 		return ret;
 	drm_connector_helper_add(connector, &simpledrm_connector_helper_funcs);
+	drm_connector_set_panel_orientation_with_quirk(connector,
+						       DRM_MODE_PANEL_ORIENTATION_UNKNOWN,
+						       mode->hdisplay, mode->vdisplay);
 
 	formats = simpledrm_device_formats(sdev, &nformats);
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 101/149] mctp: make __mctp_dev_get() take a refcount hold

[Sasha Levin]

From: Matt Johnston <matt@codeconstruct.com.au>

[ Upstream commit dc121c0084910db985cf1c8ba6fce5d8c307cc02 ]

Previously there was a race that could allow the mctp_dev refcount
to hit zero:

rcu_read_lock();
mdev = __mctp_dev_get(dev);
// mctp_unregister() happens here, mdev->refs hits zero
mctp_dev_hold(dev);
rcu_read_unlock();

Now we make __mctp_dev_get() take the hold itself. It is safe to test
against the zero refcount because __mctp_dev_get() is called holding
rcu_read_lock and mctp_dev uses kfree_rcu().

Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mctp/device.c     | 21 ++++++++++++++++++---
 net/mctp/route.c      |  5 ++++-
 net/mctp/test/utils.c |  1 -
 3 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/net/mctp/device.c b/net/mctp/device.c
index ef2755f82f87..f86ef6d751bd 100644
--- a/net/mctp/device.c
+++ b/net/mctp/device.c
@@ -24,12 +24,25 @@ struct mctp_dump_cb {
 	size_t a_idx;
 };
 
-/* unlocked: caller must hold rcu_read_lock */
+/* unlocked: caller must hold rcu_read_lock.
+ * Returned mctp_dev has its refcount incremented, or NULL if unset.
+ */
 struct mctp_dev *__mctp_dev_get(const struct net_device *dev)
 {
-	return rcu_dereference(dev->mctp_ptr);
+	struct mctp_dev *mdev = rcu_dereference(dev->mctp_ptr);
+
+	/* RCU guarantees that any mdev is still live.
+	 * Zero refcount implies a pending free, return NULL.
+	 */
+	if (mdev)
+		if (!refcount_inc_not_zero(&mdev->refs))
+			return NULL;
+	return mdev;
 }
 
+/* Returned mctp_dev does not have refcount incremented. The returned pointer
+ * remains live while rtnl_lock is held, as that prevents mctp_unregister()
+ */
 struct mctp_dev *mctp_dev_get_rtnl(const struct net_device *dev)
 {
 	return rtnl_dereference(dev->mctp_ptr);
@@ -123,6 +136,7 @@ static int mctp_dump_addrinfo(struct sk_buff *skb, struct netlink_callback *cb)
 				if (mdev) {
 					rc = mctp_dump_dev_addrinfo(mdev,
 								    skb, cb);
+					mctp_dev_put(mdev);
 					// Error indicates full buffer, this
 					// callback will get retried.
 					if (rc < 0)
@@ -297,7 +311,7 @@ void mctp_dev_hold(struct mctp_dev *mdev)
 
 void mctp_dev_put(struct mctp_dev *mdev)
 {
-	if (refcount_dec_and_test(&mdev->refs)) {
+	if (mdev && refcount_dec_and_test(&mdev->refs)) {
 		dev_put(mdev->dev);
 		kfree_rcu(mdev, rcu);
 	}
@@ -369,6 +383,7 @@ static size_t mctp_get_link_af_size(const struct net_device *dev,
 	if (!mdev)
 		return 0;
 	ret = nla_total_size(4); /* IFLA_MCTP_NET */
+	mctp_dev_put(mdev);
 	return ret;
 }
 
diff --git a/net/mctp/route.c b/net/mctp/route.c
index e52cef750500..05fbd318eb98 100644
--- a/net/mctp/route.c
+++ b/net/mctp/route.c
@@ -786,7 +786,7 @@ int mctp_local_output(struct sock *sk, struct mctp_route *rt,
 {
 	struct mctp_sock *msk = container_of(sk, struct mctp_sock, sk);
 	struct mctp_skb_cb *cb = mctp_cb(skb);
-	struct mctp_route tmp_rt;
+	struct mctp_route tmp_rt = {0};
 	struct mctp_sk_key *key;
 	struct net_device *dev;
 	struct mctp_hdr *hdr;
@@ -892,6 +892,7 @@ int mctp_local_output(struct sock *sk, struct mctp_route *rt,
 		mctp_route_release(rt);
 
 	dev_put(dev);
+	mctp_dev_put(tmp_rt.dev);
 
 	return rc;
 
@@ -1057,11 +1058,13 @@ static int mctp_pkttype_receive(struct sk_buff *skb, struct net_device *dev,
 
 	rt->output(rt, skb);
 	mctp_route_release(rt);
+	mctp_dev_put(mdev);
 
 	return NET_RX_SUCCESS;
 
 err_drop:
 	kfree_skb(skb);
+	mctp_dev_put(mdev);
 	return NET_RX_DROP;
 }
 
diff --git a/net/mctp/test/utils.c b/net/mctp/test/utils.c
index 7b7918702592..e03ba66bbe18 100644
--- a/net/mctp/test/utils.c
+++ b/net/mctp/test/utils.c
@@ -54,7 +54,6 @@ struct mctp_test_dev *mctp_test_create_dev(void)
 
 	rcu_read_lock();
 	dev->mdev = __mctp_dev_get(ndev);
-	mctp_dev_hold(dev->mdev);
 	rcu_read_unlock();
 
 	return dev;
-- 
2.34.1

[PATCH AUTOSEL 5.17 102/149] powerpc/64s/hash: Make hash faults work in NMI context

[Sasha Levin]

From: Nicholas Piggin <npiggin@gmail.com>

[ Upstream commit 8b91cee5eadd2021f55e6775f2d50bd56d00c217 ]

Hash faults are not resoved in NMI context, instead causing the access
to fail. This is done because perf interrupts can get backtraces
including walking the user stack, and taking a hash fault on those could
deadlock on the HPTE lock if the perf interrupt hits while the same HPTE
lock is being held by the hash fault code. The user-access for the stack
walking will notice the access failed and deal with that in the perf
code.

The reason to allow perf interrupts in is to better profile hash faults.

The problem with this is any hash fault on a kernel access that happens
in NMI context will crash, because kernel accesses must not fail.

Hard lockups, system reset, machine checks that access vmalloc space
including modules and including stack backtracing and symbol lookup in
modules, per-cpu data, etc could all run into this problem.

Fix this by disallowing perf interrupts in the hash fault code (the
direct hash fault is covered by MSR[EE]=0 so the PMI disable just needs
to extend to the preload case). This simplifies the tricky logic in hash
faults and perf, at the cost of reduced profiling of hash faults.

perf can still latch addresses when interrupts are disabled, it just
won't get the stack trace at that point, so it would still find hot
spots, just sometimes with confusing stack chains.

An alternative could be to allow perf interrupts here but always do the
slowpath stack walk if we are in nmi context, but that slows down all
perf interrupt stack walking on hash though and it does not remove as
much tricky code.

Reported-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Laurent Dufour <ldufour@linux.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220204035348.545435-1-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/interrupt.h  |  2 +-
 arch/powerpc/mm/book3s64/hash_utils.c | 54 ++++-----------------------
 arch/powerpc/perf/callchain.h         |  9 +----
 arch/powerpc/perf/callchain_64.c      | 27 --------------
 4 files changed, 10 insertions(+), 82 deletions(-)

diff --git a/arch/powerpc/include/asm/interrupt.h b/arch/powerpc/include/asm/interrupt.h
index fc28f46d2f9d..5404f7abbcf8 100644
--- a/arch/powerpc/include/asm/interrupt.h
+++ b/arch/powerpc/include/asm/interrupt.h
@@ -612,7 +612,7 @@ DECLARE_INTERRUPT_HANDLER_RAW(do_slb_fault);
 DECLARE_INTERRUPT_HANDLER(do_bad_segment_interrupt);
 
 /* hash_utils.c */
-DECLARE_INTERRUPT_HANDLER_RAW(do_hash_fault);
+DECLARE_INTERRUPT_HANDLER(do_hash_fault);
 
 /* fault.c */
 DECLARE_INTERRUPT_HANDLER(do_page_fault);
diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c
index 7abf82a698d3..985cabdd7f67 100644
--- a/arch/powerpc/mm/book3s64/hash_utils.c
+++ b/arch/powerpc/mm/book3s64/hash_utils.c
@@ -1621,8 +1621,7 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap,
 }
 EXPORT_SYMBOL_GPL(hash_page);
 
-DECLARE_INTERRUPT_HANDLER(__do_hash_fault);
-DEFINE_INTERRUPT_HANDLER(__do_hash_fault)
+DEFINE_INTERRUPT_HANDLER(do_hash_fault)
 {
 	unsigned long ea = regs->dar;
 	unsigned long dsisr = regs->dsisr;
@@ -1681,35 +1680,6 @@ DEFINE_INTERRUPT_HANDLER(__do_hash_fault)
 	}
 }
 
-/*
- * The _RAW interrupt entry checks for the in_nmi() case before
- * running the full handler.
- */
-DEFINE_INTERRUPT_HANDLER_RAW(do_hash_fault)
-{
-	/*
-	 * If we are in an "NMI" (e.g., an interrupt when soft-disabled), then
-	 * don't call hash_page, just fail the fault. This is required to
-	 * prevent re-entrancy problems in the hash code, namely perf
-	 * interrupts hitting while something holds H_PAGE_BUSY, and taking a
-	 * hash fault. See the comment in hash_preload().
-	 *
-	 * We come here as a result of a DSI at a point where we don't want
-	 * to call hash_page, such as when we are accessing memory (possibly
-	 * user memory) inside a PMU interrupt that occurred while interrupts
-	 * were soft-disabled.  We want to invoke the exception handler for
-	 * the access, or panic if there isn't a handler.
-	 */
-	if (unlikely(in_nmi())) {
-		do_bad_page_fault_segv(regs);
-		return 0;
-	}
-
-	__do_hash_fault(regs);
-
-	return 0;
-}
-
 #ifdef CONFIG_PPC_MM_SLICES
 static bool should_hash_preload(struct mm_struct *mm, unsigned long ea)
 {
@@ -1776,26 +1746,18 @@ static void hash_preload(struct mm_struct *mm, pte_t *ptep, unsigned long ea,
 #endif /* CONFIG_PPC_64K_PAGES */
 
 	/*
-	 * __hash_page_* must run with interrupts off, as it sets the
-	 * H_PAGE_BUSY bit. It's possible for perf interrupts to hit at any
-	 * time and may take a hash fault reading the user stack, see
-	 * read_user_stack_slow() in the powerpc/perf code.
-	 *
-	 * If that takes a hash fault on the same page as we lock here, it
-	 * will bail out when seeing H_PAGE_BUSY set, and retry the access
-	 * leading to an infinite loop.
+	 * __hash_page_* must run with interrupts off, including PMI interrupts
+	 * off, as it sets the H_PAGE_BUSY bit.
 	 *
-	 * Disabling interrupts here does not prevent perf interrupts, but it
-	 * will prevent them taking hash faults (see the NMI test in
-	 * do_hash_page), then read_user_stack's copy_from_user_nofault will
-	 * fail and perf will fall back to read_user_stack_slow(), which
-	 * walks the Linux page tables.
+	 * It's otherwise possible for perf interrupts to hit at any time and
+	 * may take a hash fault reading the user stack, which could take a
+	 * hash miss and deadlock on the same H_PAGE_BUSY bit.
 	 *
 	 * Interrupts must also be off for the duration of the
 	 * mm_is_thread_local test and update, to prevent preempt running the
 	 * mm on another CPU (XXX: this may be racy vs kthread_use_mm).
 	 */
-	local_irq_save(flags);
+	powerpc_local_irq_pmu_save(flags);
 
 	/* Is that local to this CPU ? */
 	if (mm_is_thread_local(mm))
@@ -1820,7 +1782,7 @@ static void hash_preload(struct mm_struct *mm, pte_t *ptep, unsigned long ea,
 				   mm_ctx_user_psize(&mm->context),
 				   pte_val(*ptep));
 
-	local_irq_restore(flags);
+	powerpc_local_irq_pmu_restore(flags);
 }
 
 /*
diff --git a/arch/powerpc/perf/callchain.h b/arch/powerpc/perf/callchain.h
index d6fa6e25234f..19a8d051ddf1 100644
--- a/arch/powerpc/perf/callchain.h
+++ b/arch/powerpc/perf/callchain.h
@@ -2,7 +2,6 @@
 #ifndef _POWERPC_PERF_CALLCHAIN_H
 #define _POWERPC_PERF_CALLCHAIN_H
 
-int read_user_stack_slow(const void __user *ptr, void *buf, int nb);
 void perf_callchain_user_64(struct perf_callchain_entry_ctx *entry,
 			    struct pt_regs *regs);
 void perf_callchain_user_32(struct perf_callchain_entry_ctx *entry,
@@ -26,17 +25,11 @@ static inline int __read_user_stack(const void __user *ptr, void *ret,
 				    size_t size)
 {
 	unsigned long addr = (unsigned long)ptr;
-	int rc;
 
 	if (addr > TASK_SIZE - size || (addr & (size - 1)))
 		return -EFAULT;
 
-	rc = copy_from_user_nofault(ret, ptr, size);
-
-	if (IS_ENABLED(CONFIG_PPC64) && !radix_enabled() && rc)
-		return read_user_stack_slow(ptr, ret, size);
-
-	return rc;
+	return copy_from_user_nofault(ret, ptr, size);
 }
 
 #endif /* _POWERPC_PERF_CALLCHAIN_H */
diff --git a/arch/powerpc/perf/callchain_64.c b/arch/powerpc/perf/callchain_64.c
index 8d0df4226328..488e8a21a11e 100644
--- a/arch/powerpc/perf/callchain_64.c
+++ b/arch/powerpc/perf/callchain_64.c
@@ -18,33 +18,6 @@
 
 #include "callchain.h"
 
-/*
- * On 64-bit we don't want to invoke hash_page on user addresses from
- * interrupt context, so if the access faults, we read the page tables
- * to find which page (if any) is mapped and access it directly. Radix
- * has no need for this so it doesn't use read_user_stack_slow.
- */
-int read_user_stack_slow(const void __user *ptr, void *buf, int nb)
-{
-
-	unsigned long addr = (unsigned long) ptr;
-	unsigned long offset;
-	struct page *page;
-	void *kaddr;
-
-	if (get_user_page_fast_only(addr, FOLL_WRITE, &page)) {
-		kaddr = page_address(page);
-
-		/* align address to page boundary */
-		offset = addr & ~PAGE_MASK;
-
-		memcpy(buf, kaddr + offset, nb);
-		put_page(page);
-		return 0;
-	}
-	return -EFAULT;
-}
-
 static int read_user_stack_64(const unsigned long __user *ptr, unsigned long *ret)
 {
 	return __read_user_stack(ptr, ret, sizeof(*ret));
-- 
2.34.1

[PATCH AUTOSEL 5.17 103/149] mt76: mt7615: Fix assigning negative values to unsigned variable

[Sasha Levin]

From: Yang Li <yang.lee@linux.alibaba.com>

[ Upstream commit 9273ffcc9a11942bd586bb42584337ef3962b692 ]

Smatch reports the following:
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:1865
mt7615_mac_adjust_sensitivity() warn: assigning (-110) to unsigned
variable 'def_th'
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:1865
mt7615_mac_adjust_sensitivity() warn: assigning (-98) to unsigned
variable 'def_th'

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index ec25e5a95d44..dd4ab6063440 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -1835,7 +1835,7 @@ mt7615_mac_adjust_sensitivity(struct mt7615_phy *phy,
 	struct mt7615_dev *dev = phy->dev;
 	int false_cca = ofdm ? phy->false_cca_ofdm : phy->false_cca_cck;
 	bool ext_phy = phy != &dev->phy;
-	u16 def_th = ofdm ? -98 : -110;
+	s16 def_th = ofdm ? -98 : -110;
 	bool update = false;
 	s8 *sensitivity;
 	int signal;
-- 
2.34.1

[PATCH AUTOSEL 5.17 104/149] power: supply: axp288_charger: Use acpi_quirk_skip_acpi_ac_and_battery()

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 00d0566614b7bb7b226cb5a6895b0180ffe6915a ]

Normally the native AXP288 fg/charger drivers are preferred but one some
devices the ACPI drivers should be used instead.

The ACPI battery/ac drivers use the acpi_quirk_skip_acpi_ac_and_battery()
helper to determine if they should skip loading because native fuel-gauge/
charger drivers like the AXP288 drivers will be used.

The new acpi_quirk_skip_acpi_ac_and_battery() helper includes a list of
exceptions for boards where the ACPI drivers should be used instead.

Use this new helper to avoid loading on such boards. Note this requires
adding a Kconfig dependency on ACPI, this is not a problem because ACPI
should be enabled on all boards with an AXP288 PMIC anyways.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/Kconfig          | 2 +-
 drivers/power/supply/axp288_charger.c | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index b366e2fd8e97..d7534f12e9ef 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -351,7 +351,7 @@ config AXP20X_POWER
 
 config AXP288_CHARGER
 	tristate "X-Powers AXP288 Charger"
-	depends on MFD_AXP20X && EXTCON_AXP288 && IOSF_MBI
+	depends on MFD_AXP20X && EXTCON_AXP288 && IOSF_MBI && ACPI
 	help
 	  Say yes here to have support X-Power AXP288 power management IC (PMIC)
 	  integrated charger.
diff --git a/drivers/power/supply/axp288_charger.c b/drivers/power/supply/axp288_charger.c
index c498e62ab4e2..19746e658a6a 100644
--- a/drivers/power/supply/axp288_charger.c
+++ b/drivers/power/supply/axp288_charger.c
@@ -838,6 +838,13 @@ static int axp288_charger_probe(struct platform_device *pdev)
 	struct power_supply_config charger_cfg = {};
 	unsigned int val;
 
+	/*
+	 * Normally the native AXP288 fg/charger drivers are preferred but
+	 * on some devices the ACPI drivers should be used instead.
+	 */
+	if (!acpi_quirk_skip_acpi_ac_and_battery())
+		return -ENODEV;
+
 	/*
 	 * On some devices the fuelgauge and charger parts of the axp288 are
 	 * not used, check that the fuelgauge is enabled (CC_CTRL != 0).
-- 
2.34.1

[PATCH AUTOSEL 5.17 105/149] power: supply: axp288_fuel_gauge: Use acpi_quirk_skip_acpi_ac_and_battery()

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit da365db704d290fb4dc4cdbd41f60b0ecec1cc03 ]

Normally the native AXP288 fg/charger drivers are preferred but one some
devices the ACPI drivers should be used instead.

The ACPI battery/ac drivers use the acpi_quirk_skip_acpi_ac_and_battery()
helper to determine if they should skip loading because native fuel-gauge/
charger drivers like the AXP288 drivers will be used.

The new acpi_quirk_skip_acpi_ac_and_battery() helper includes a list of
exceptions for boards where the ACPI drivers should be used instead.

Use this new helper to avoid loading on such boards. Note this requires
adding a Kconfig dependency on ACPI, this is not a problem because ACPI
should be enabled on all boards with an AXP288 PMIC anyways.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/Kconfig             |  2 +-
 drivers/power/supply/axp288_fuel_gauge.c | 14 ++++++++------
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index d7534f12e9ef..5e4a69352811 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -358,7 +358,7 @@ config AXP288_CHARGER
 
 config AXP288_FUEL_GAUGE
 	tristate "X-Powers AXP288 Fuel Gauge"
-	depends on MFD_AXP20X && IIO && IOSF_MBI
+	depends on MFD_AXP20X && IIO && IOSF_MBI && ACPI
 	help
 	  Say yes here to have support for X-Power power management IC (PMIC)
 	  Fuel Gauge. The device provides battery statistics and status
diff --git a/drivers/power/supply/axp288_fuel_gauge.c b/drivers/power/supply/axp288_fuel_gauge.c
index c1da217fdb0e..ce8ffd0a41b5 100644
--- a/drivers/power/supply/axp288_fuel_gauge.c
+++ b/drivers/power/supply/axp288_fuel_gauge.c
@@ -9,6 +9,7 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
+#include <linux/acpi.h>
 #include <linux/dmi.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
@@ -560,12 +561,6 @@ static const struct dmi_system_id axp288_no_battery_list[] = {
 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
 		},
 	},
-	{
-		/* ECS EF20EA */
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
-		},
-	},
 	{
 		/* Intel Cherry Trail Compute Stick, Windows version */
 		.matches = {
@@ -624,6 +619,13 @@ static int axp288_fuel_gauge_probe(struct platform_device *pdev)
 	};
 	unsigned int val;
 
+	/*
+	 * Normally the native AXP288 fg/charger drivers are preferred but
+	 * on some devices the ACPI drivers should be used instead.
+	 */
+	if (!acpi_quirk_skip_acpi_ac_and_battery())
+		return -ENODEV;
+
 	if (dmi_check_system(axp288_no_battery_list))
 		return -ENODEV;
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 106/149] scsi: aha152x: Fix aha152x_setup() __setup handler return value

[Sasha Levin]

From: Randy Dunlap <rdunlap@infradead.org>

[ Upstream commit cc8294ec4738d25e2bb2d71f7d82a9bf7f4a157b ]

__setup() handlers should return 1 if the command line option is handled
and 0 if not (or maybe never return 0; doing so just pollutes init's
environment with strings that are not init arguments/parameters).

Return 1 from aha152x_setup() to indicate that the boot option has been
handled.

Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Link: https://lore.kernel.org/r/20220223000623.5920-1-rdunlap@infradead.org
Cc: "Juergen E. Fischer" <fischer@norbit.de>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/aha152x.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index d17880b57d17..2449b4215b32 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -3375,13 +3375,11 @@ static int __init aha152x_setup(char *str)
 	setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1;
 	setup[setup_count].delay       = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
 	setup[setup_count].ext_trans   = ints[0] >= 8 ? ints[8] : 0;
-	if (ints[0] > 8) {                                                /*}*/
+	if (ints[0] > 8)
 		printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
 		       "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
-	} else {
+	else
 		setup_count++;
-		return 0;
-	}
 
 	return 1;
 }
-- 
2.34.1

[PATCH AUTOSEL 5.17 107/149] scsi: hisi_sas: Free irq vectors in order for v3 HW

[Sasha Levin]

From: Qi Liu <liuqi115@huawei.com>

[ Upstream commit 554fb72ee34f4732c7f694f56c3c6e67790352a0 ]

If the driver probe fails to request the channel IRQ or fatal IRQ, the
driver will free the IRQ vectors before freeing the IRQs in free_irq(),
and this will cause a kernel BUG like this:

------------[ cut here ]------------
kernel BUG at drivers/pci/msi.c:369!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Call trace:
   free_msi_irqs+0x118/0x13c
   pci_disable_msi+0xfc/0x120
   pci_free_irq_vectors+0x24/0x3c
   hisi_sas_v3_probe+0x360/0x9d0 [hisi_sas_v3_hw]
   local_pci_probe+0x44/0xb0
   work_for_cpu_fn+0x20/0x34
   process_one_work+0x1d0/0x340
   worker_thread+0x2e0/0x460
   kthread+0x180/0x190
   ret_from_fork+0x10/0x20
---[ end trace b88990335b610c11 ]---

So we use devm_add_action() to control the order in which we free the
vectors.

Link: https://lore.kernel.org/r/1645703489-87194-4-git-send-email-john.garry@huawei.com
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index a01a3a7b706b..ce0d4bfbe51e 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2398,17 +2398,25 @@ static irqreturn_t cq_interrupt_v3_hw(int irq_no, void *p)
 	return IRQ_WAKE_THREAD;
 }
 
+static void hisi_sas_v3_free_vectors(void *data)
+{
+	struct pci_dev *pdev = data;
+
+	pci_free_irq_vectors(pdev);
+}
+
 static int interrupt_preinit_v3_hw(struct hisi_hba *hisi_hba)
 {
 	int vectors;
 	int max_msi = HISI_SAS_MSI_COUNT_V3_HW, min_msi;
 	struct Scsi_Host *shost = hisi_hba->shost;
+	struct pci_dev *pdev = hisi_hba->pci_dev;
 	struct irq_affinity desc = {
 		.pre_vectors = BASE_VECTORS_V3_HW,
 	};
 
 	min_msi = MIN_AFFINE_VECTORS_V3_HW;
-	vectors = pci_alloc_irq_vectors_affinity(hisi_hba->pci_dev,
+	vectors = pci_alloc_irq_vectors_affinity(pdev,
 						 min_msi, max_msi,
 						 PCI_IRQ_MSI |
 						 PCI_IRQ_AFFINITY,
@@ -2420,6 +2428,7 @@ static int interrupt_preinit_v3_hw(struct hisi_hba *hisi_hba)
 	hisi_hba->cq_nvecs = vectors - BASE_VECTORS_V3_HW;
 	shost->nr_hw_queues = hisi_hba->cq_nvecs;
 
+	devm_add_action(&pdev->dev, hisi_sas_v3_free_vectors, pdev);
 	return 0;
 }
 
@@ -4769,7 +4778,7 @@ hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	rc = scsi_add_host(shost, dev);
 	if (rc)
-		goto err_out_free_irq_vectors;
+		goto err_out_debugfs;
 
 	rc = sas_register_ha(sha);
 	if (rc)
@@ -4800,8 +4809,6 @@ hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	sas_unregister_ha(sha);
 err_out_register_ha:
 	scsi_remove_host(shost);
-err_out_free_irq_vectors:
-	pci_free_irq_vectors(pdev);
 err_out_debugfs:
 	debugfs_exit_v3_hw(hisi_hba);
 err_out_ha:
@@ -4825,7 +4832,6 @@ hisi_sas_v3_destroy_irqs(struct pci_dev *pdev, struct hisi_hba *hisi_hba)
 
 		devm_free_irq(&pdev->dev, pci_irq_vector(pdev, nr), cq);
 	}
-	pci_free_irq_vectors(pdev);
 }
 
 static void hisi_sas_v3_remove(struct pci_dev *pdev)
-- 
2.34.1

[PATCH AUTOSEL 5.17 108/149] scsi: hisi_sas: Limit users changing debugfs BIST count value

[Sasha Levin]

From: Xiang Chen <chenxiang66@hisilicon.com>

[ Upstream commit 286ce4c65fbdf5eb9d4d5f4e4997c4e32bf1b073 ]

Add a file operation for "cnt" file under bist directory, so users can only
read "cnt" or clear "cnt" to zero, but cannot randomly modify.

Link: https://lore.kernel.org/r/1645703489-87194-6-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 52 +++++++++++++++++++++++++-
 1 file changed, 50 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index ce0d4bfbe51e..ee7be7d51a21 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -3976,6 +3976,54 @@ static const struct file_operations debugfs_bist_phy_v3_hw_fops = {
 	.owner = THIS_MODULE,
 };
 
+static ssize_t debugfs_bist_cnt_v3_hw_write(struct file *filp,
+					const char __user *buf,
+					size_t count, loff_t *ppos)
+{
+	struct seq_file *m = filp->private_data;
+	struct hisi_hba *hisi_hba = m->private;
+	unsigned int cnt;
+	int val;
+
+	if (hisi_hba->debugfs_bist_enable)
+		return -EPERM;
+
+	val = kstrtouint_from_user(buf, count, 0, &cnt);
+	if (val)
+		return val;
+
+	if (cnt)
+		return -EINVAL;
+
+	hisi_hba->debugfs_bist_cnt = 0;
+	return count;
+}
+
+static int debugfs_bist_cnt_v3_hw_show(struct seq_file *s, void *p)
+{
+	struct hisi_hba *hisi_hba = s->private;
+
+	seq_printf(s, "%u\n", hisi_hba->debugfs_bist_cnt);
+
+	return 0;
+}
+
+static int debugfs_bist_cnt_v3_hw_open(struct inode *inode,
+					  struct file *filp)
+{
+	return single_open(filp, debugfs_bist_cnt_v3_hw_show,
+			   inode->i_private);
+}
+
+static const struct file_operations debugfs_bist_cnt_v3_hw_ops = {
+	.open = debugfs_bist_cnt_v3_hw_open,
+	.read = seq_read,
+	.write = debugfs_bist_cnt_v3_hw_write,
+	.llseek = seq_lseek,
+	.release = single_release,
+	.owner = THIS_MODULE,
+};
+
 static const struct {
 	int		value;
 	char		*name;
@@ -4613,8 +4661,8 @@ static void debugfs_bist_init_v3_hw(struct hisi_hba *hisi_hba)
 	debugfs_create_file("phy_id", 0600, hisi_hba->debugfs_bist_dentry,
 			    hisi_hba, &debugfs_bist_phy_v3_hw_fops);
 
-	debugfs_create_u32("cnt", 0600, hisi_hba->debugfs_bist_dentry,
-			   &hisi_hba->debugfs_bist_cnt);
+	debugfs_create_file("cnt", 0600, hisi_hba->debugfs_bist_dentry,
+			    hisi_hba, &debugfs_bist_cnt_v3_hw_ops);
 
 	debugfs_create_file("loopback_mode", 0600,
 			    hisi_hba->debugfs_bist_dentry,
-- 
2.34.1

[PATCH AUTOSEL 5.17 109/149] net/smc: correct settings of RMB window update limit

[Sasha Levin]

From: Dust Li <dust.li@linux.alibaba.com>

[ Upstream commit 6bf536eb5c8ca011d1ff57b5c5f7c57ceac06a37 ]

rmbe_update_limit is used to limit announcing receive
window updating too frequently. RFC7609 request a minimal
increase in the window size of 10% of the receive buffer
space. But current implementation used:

  min_t(int, rmbe_size / 10, SOCK_MIN_SNDBUF / 2)

and SOCK_MIN_SNDBUF / 2 == 2304 Bytes, which is almost
always less then 10% of the receive buffer space.

This causes the receiver always sending CDC message to
update its consumer cursor when it consumes more then 2K
of data. And as a result, we may encounter something like
"TCP silly window syndrome" when sending 2.5~8K message.

This patch fixes this using max(rmbe_size / 10, SOCK_MIN_SNDBUF / 2).

With this patch and SMC autocorking enabled, qperf 2K/4K/8K
tcp_bw test shows 45%/75%/40% increase in throughput respectively.

Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index be7d704976ff..f40f6ed0fbdb 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -1989,7 +1989,7 @@ static struct smc_buf_desc *smc_buf_get_slot(int compressed_bufsize,
  */
 static inline int smc_rmb_wnd_update_limit(int rmbe_size)
 {
-	return min_t(int, rmbe_size / 10, SOCK_MIN_SNDBUF / 2);
+	return max_t(int, rmbe_size / 10, SOCK_MIN_SNDBUF / 2);
 }
 
 /* map an rmb buf to a link */
-- 
2.34.1

[PATCH AUTOSEL 5.17 110/149] mips: ralink: fix a refcount leak in ill_acc_of_setup()

[Sasha Levin]

From: Hangyu Hua <hbh25y@gmail.com>

[ Upstream commit 4a0a1436053b17e50b7c88858fb0824326641793 ]

of_node_put(np) needs to be called when pdev == NULL.

Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/ralink/ill_acc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/ralink/ill_acc.c b/arch/mips/ralink/ill_acc.c
index 115a69fc20ca..f395ae218470 100644
--- a/arch/mips/ralink/ill_acc.c
+++ b/arch/mips/ralink/ill_acc.c
@@ -61,6 +61,7 @@ static int __init ill_acc_of_setup(void)
 	pdev = of_find_device_by_node(np);
 	if (!pdev) {
 		pr_err("%pOFn: failed to lookup pdev\n", np);
+		of_node_put(np);
 		return -EINVAL;
 	}
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 111/149] iavf: stop leaking iavf_status as "errno" values

[Sasha Levin]

From: Mateusz Palczewski <mateusz.palczewski@intel.com>

[ Upstream commit bae569d01a1f4929ce28093be80bbbbacbf1b127 ]

Several functions in the iAVF core files take status values of the enum
iavf_status and convert them into integer values. This leads to
confusion as functions return both Linux errno values and status codes
intermixed. Reporting status codes as if they were "errno" values can
lead to confusion when reviewing error logs. Additionally, it can lead
to unexpected behavior if a return value is not interpreted properly.

Fix this by introducing iavf_status_to_errno, a switch that explicitly
converts from the status codes into an appropriate error value. Also
introduce a virtchnl_status_to_errno function for the one case where we
were returning both virtchnl status codes and iavf_status codes in the
same function.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf.h        |   5 +-
 drivers/net/ethernet/intel/iavf/iavf_main.c   | 173 +++++++++++++++---
 .../net/ethernet/intel/iavf/iavf_virtchnl.c   |  18 +-
 3 files changed, 157 insertions(+), 39 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h
index 4babe4705a55..358a9b3031d5 100644
--- a/drivers/net/ethernet/intel/iavf/iavf.h
+++ b/drivers/net/ethernet/intel/iavf/iavf.h
@@ -44,6 +44,9 @@
 #define DEFAULT_DEBUG_LEVEL_SHIFT 3
 #define PFX "iavf: "
 
+int iavf_status_to_errno(enum iavf_status status);
+int virtchnl_status_to_errno(enum virtchnl_status_code v_status);
+
 /* VSI state flags shared with common code */
 enum iavf_vsi_state_t {
 	__IAVF_VSI_DOWN,
@@ -515,7 +518,7 @@ void iavf_add_vlans(struct iavf_adapter *adapter);
 void iavf_del_vlans(struct iavf_adapter *adapter);
 void iavf_set_promiscuous(struct iavf_adapter *adapter, int flags);
 void iavf_request_stats(struct iavf_adapter *adapter);
-void iavf_request_reset(struct iavf_adapter *adapter);
+int iavf_request_reset(struct iavf_adapter *adapter);
 void iavf_get_hena(struct iavf_adapter *adapter);
 void iavf_set_hena(struct iavf_adapter *adapter);
 void iavf_set_rss_key(struct iavf_adapter *adapter);
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 0e178a0a59c5..d10e9a8e8011 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -51,6 +51,113 @@ MODULE_LICENSE("GPL v2");
 static const struct net_device_ops iavf_netdev_ops;
 struct workqueue_struct *iavf_wq;
 
+int iavf_status_to_errno(enum iavf_status status)
+{
+	switch (status) {
+	case IAVF_SUCCESS:
+		return 0;
+	case IAVF_ERR_PARAM:
+	case IAVF_ERR_MAC_TYPE:
+	case IAVF_ERR_INVALID_MAC_ADDR:
+	case IAVF_ERR_INVALID_LINK_SETTINGS:
+	case IAVF_ERR_INVALID_PD_ID:
+	case IAVF_ERR_INVALID_QP_ID:
+	case IAVF_ERR_INVALID_CQ_ID:
+	case IAVF_ERR_INVALID_CEQ_ID:
+	case IAVF_ERR_INVALID_AEQ_ID:
+	case IAVF_ERR_INVALID_SIZE:
+	case IAVF_ERR_INVALID_ARP_INDEX:
+	case IAVF_ERR_INVALID_FPM_FUNC_ID:
+	case IAVF_ERR_QP_INVALID_MSG_SIZE:
+	case IAVF_ERR_INVALID_FRAG_COUNT:
+	case IAVF_ERR_INVALID_ALIGNMENT:
+	case IAVF_ERR_INVALID_PUSH_PAGE_INDEX:
+	case IAVF_ERR_INVALID_IMM_DATA_SIZE:
+	case IAVF_ERR_INVALID_VF_ID:
+	case IAVF_ERR_INVALID_HMCFN_ID:
+	case IAVF_ERR_INVALID_PBLE_INDEX:
+	case IAVF_ERR_INVALID_SD_INDEX:
+	case IAVF_ERR_INVALID_PAGE_DESC_INDEX:
+	case IAVF_ERR_INVALID_SD_TYPE:
+	case IAVF_ERR_INVALID_HMC_OBJ_INDEX:
+	case IAVF_ERR_INVALID_HMC_OBJ_COUNT:
+	case IAVF_ERR_INVALID_SRQ_ARM_LIMIT:
+		return -EINVAL;
+	case IAVF_ERR_NVM:
+	case IAVF_ERR_NVM_CHECKSUM:
+	case IAVF_ERR_PHY:
+	case IAVF_ERR_CONFIG:
+	case IAVF_ERR_UNKNOWN_PHY:
+	case IAVF_ERR_LINK_SETUP:
+	case IAVF_ERR_ADAPTER_STOPPED:
+	case IAVF_ERR_MASTER_REQUESTS_PENDING:
+	case IAVF_ERR_AUTONEG_NOT_COMPLETE:
+	case IAVF_ERR_RESET_FAILED:
+	case IAVF_ERR_BAD_PTR:
+	case IAVF_ERR_SWFW_SYNC:
+	case IAVF_ERR_QP_TOOMANY_WRS_POSTED:
+	case IAVF_ERR_QUEUE_EMPTY:
+	case IAVF_ERR_FLUSHED_QUEUE:
+	case IAVF_ERR_OPCODE_MISMATCH:
+	case IAVF_ERR_CQP_COMPL_ERROR:
+	case IAVF_ERR_BACKING_PAGE_ERROR:
+	case IAVF_ERR_NO_PBLCHUNKS_AVAILABLE:
+	case IAVF_ERR_MEMCPY_FAILED:
+	case IAVF_ERR_SRQ_ENABLED:
+	case IAVF_ERR_ADMIN_QUEUE_ERROR:
+	case IAVF_ERR_ADMIN_QUEUE_FULL:
+	case IAVF_ERR_BAD_IWARP_CQE:
+	case IAVF_ERR_NVM_BLANK_MODE:
+	case IAVF_ERR_PE_DOORBELL_NOT_ENABLED:
+	case IAVF_ERR_DIAG_TEST_FAILED:
+	case IAVF_ERR_FIRMWARE_API_VERSION:
+	case IAVF_ERR_ADMIN_QUEUE_CRITICAL_ERROR:
+		return -EIO;
+	case IAVF_ERR_DEVICE_NOT_SUPPORTED:
+		return -ENODEV;
+	case IAVF_ERR_NO_AVAILABLE_VSI:
+	case IAVF_ERR_RING_FULL:
+		return -ENOSPC;
+	case IAVF_ERR_NO_MEMORY:
+		return -ENOMEM;
+	case IAVF_ERR_TIMEOUT:
+	case IAVF_ERR_ADMIN_QUEUE_TIMEOUT:
+		return -ETIMEDOUT;
+	case IAVF_ERR_NOT_IMPLEMENTED:
+	case IAVF_NOT_SUPPORTED:
+		return -EOPNOTSUPP;
+	case IAVF_ERR_ADMIN_QUEUE_NO_WORK:
+		return -EALREADY;
+	case IAVF_ERR_NOT_READY:
+		return -EBUSY;
+	case IAVF_ERR_BUF_TOO_SHORT:
+		return -EMSGSIZE;
+	}
+
+	return -EIO;
+}
+
+int virtchnl_status_to_errno(enum virtchnl_status_code v_status)
+{
+	switch (v_status) {
+	case VIRTCHNL_STATUS_SUCCESS:
+		return 0;
+	case VIRTCHNL_STATUS_ERR_PARAM:
+	case VIRTCHNL_STATUS_ERR_INVALID_VF_ID:
+		return -EINVAL;
+	case VIRTCHNL_STATUS_ERR_NO_MEMORY:
+		return -ENOMEM;
+	case VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH:
+	case VIRTCHNL_STATUS_ERR_CQP_COMPL_ERROR:
+	case VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR:
+		return -EIO;
+	case VIRTCHNL_STATUS_ERR_NOT_SUPPORTED:
+		return -EOPNOTSUPP;
+	}
+
+	return -EIO;
+}
+
 /**
  * iavf_pdev_to_adapter - go from pci_dev to adapter
  * @pdev: pci_dev pointer
@@ -1421,7 +1528,7 @@ static int iavf_config_rss_aq(struct iavf_adapter *adapter)
 	struct iavf_aqc_get_set_rss_key_data *rss_key =
 		(struct iavf_aqc_get_set_rss_key_data *)adapter->rss_key;
 	struct iavf_hw *hw = &adapter->hw;
-	int ret = 0;
+	enum iavf_status status;
 
 	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 		/* bail because we already have a command pending */
@@ -1430,24 +1537,25 @@ static int iavf_config_rss_aq(struct iavf_adapter *adapter)
 		return -EBUSY;
 	}
 
-	ret = iavf_aq_set_rss_key(hw, adapter->vsi.id, rss_key);
-	if (ret) {
+	status = iavf_aq_set_rss_key(hw, adapter->vsi.id, rss_key);
+	if (status) {
 		dev_err(&adapter->pdev->dev, "Cannot set RSS key, err %s aq_err %s\n",
-			iavf_stat_str(hw, ret),
+			iavf_stat_str(hw, status),
 			iavf_aq_str(hw, hw->aq.asq_last_status));
-		return ret;
+		return iavf_status_to_errno(status);
 
 	}
 
-	ret = iavf_aq_set_rss_lut(hw, adapter->vsi.id, false,
-				  adapter->rss_lut, adapter->rss_lut_size);
-	if (ret) {
+	status = iavf_aq_set_rss_lut(hw, adapter->vsi.id, false,
+				     adapter->rss_lut, adapter->rss_lut_size);
+	if (status) {
 		dev_err(&adapter->pdev->dev, "Cannot set RSS lut, err %s aq_err %s\n",
-			iavf_stat_str(hw, ret),
+			iavf_stat_str(hw, status),
 			iavf_aq_str(hw, hw->aq.asq_last_status));
+		return iavf_status_to_errno(status);
 	}
 
-	return ret;
+	return 0;
 
 }
 
@@ -2003,23 +2111,24 @@ static void iavf_startup(struct iavf_adapter *adapter)
 {
 	struct pci_dev *pdev = adapter->pdev;
 	struct iavf_hw *hw = &adapter->hw;
-	int err;
+	enum iavf_status status;
+	int ret;
 
 	WARN_ON(adapter->state != __IAVF_STARTUP);
 
 	/* driver loaded, probe complete */
 	adapter->flags &= ~IAVF_FLAG_PF_COMMS_FAILED;
 	adapter->flags &= ~IAVF_FLAG_RESET_PENDING;
-	err = iavf_set_mac_type(hw);
-	if (err) {
-		dev_err(&pdev->dev, "Failed to set MAC type (%d)\n", err);
+	status = iavf_set_mac_type(hw);
+	if (status) {
+		dev_err(&pdev->dev, "Failed to set MAC type (%d)\n", status);
 		goto err;
 	}
 
-	err = iavf_check_reset_complete(hw);
-	if (err) {
+	ret = iavf_check_reset_complete(hw);
+	if (ret) {
 		dev_info(&pdev->dev, "Device is still in reset (%d), retrying\n",
-			 err);
+			 ret);
 		goto err;
 	}
 	hw->aq.num_arq_entries = IAVF_AQ_LEN;
@@ -2027,14 +2136,15 @@ static void iavf_startup(struct iavf_adapter *adapter)
 	hw->aq.arq_buf_size = IAVF_MAX_AQ_BUF_SIZE;
 	hw->aq.asq_buf_size = IAVF_MAX_AQ_BUF_SIZE;
 
-	err = iavf_init_adminq(hw);
-	if (err) {
-		dev_err(&pdev->dev, "Failed to init Admin Queue (%d)\n", err);
+	status = iavf_init_adminq(hw);
+	if (status) {
+		dev_err(&pdev->dev, "Failed to init Admin Queue (%d)\n",
+			status);
 		goto err;
 	}
-	err = iavf_send_api_ver(adapter);
-	if (err) {
-		dev_err(&pdev->dev, "Unable to send to PF (%d)\n", err);
+	ret = iavf_send_api_ver(adapter);
+	if (ret) {
+		dev_err(&pdev->dev, "Unable to send to PF (%d)\n", ret);
 		iavf_shutdown_adminq(hw);
 		goto err;
 	}
@@ -2070,7 +2180,7 @@ static void iavf_init_version_check(struct iavf_adapter *adapter)
 	/* aq msg sent, awaiting reply */
 	err = iavf_verify_api_ver(adapter);
 	if (err) {
-		if (err == IAVF_ERR_ADMIN_QUEUE_NO_WORK)
+		if (err == -EALREADY)
 			err = iavf_send_api_ver(adapter);
 		else
 			dev_err(&pdev->dev, "Unsupported PF API version %d.%d, expected %d.%d\n",
@@ -2171,11 +2281,11 @@ static void iavf_init_get_resources(struct iavf_adapter *adapter)
 		}
 	}
 	err = iavf_get_vf_config(adapter);
-	if (err == IAVF_ERR_ADMIN_QUEUE_NO_WORK) {
+	if (err == -EALREADY) {
 		err = iavf_send_vf_config_msg(adapter);
 		goto err_alloc;
-	} else if (err == IAVF_ERR_PARAM) {
-		/* We only get ERR_PARAM if the device is in a very bad
+	} else if (err == -EINVAL) {
+		/* We only get -EINVAL if the device is in a very bad
 		 * state or if we've been disabled for previous bad
 		 * behavior. Either way, we're done now.
 		 */
@@ -2626,6 +2736,7 @@ static void iavf_reset_task(struct work_struct *work)
 	struct iavf_hw *hw = &adapter->hw;
 	struct iavf_mac_filter *f, *ftmp;
 	struct iavf_cloud_filter *cf;
+	enum iavf_status status;
 	u32 reg_val;
 	int i = 0, err;
 	bool running;
@@ -2727,10 +2838,12 @@ static void iavf_reset_task(struct work_struct *work)
 	/* kill and reinit the admin queue */
 	iavf_shutdown_adminq(hw);
 	adapter->current_op = VIRTCHNL_OP_UNKNOWN;
-	err = iavf_init_adminq(hw);
-	if (err)
+	status = iavf_init_adminq(hw);
+	if (status) {
 		dev_info(&adapter->pdev->dev, "Failed to init adminq: %d\n",
-			 err);
+			 status);
+		goto reset_err;
+	}
 	adapter->aq_required = 0;
 
 	if ((adapter->flags & IAVF_FLAG_REINIT_MSIX_NEEDED) ||
diff --git a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
index 5263cefe46f5..b8c5837f8b50 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
@@ -22,17 +22,17 @@ static int iavf_send_pf_msg(struct iavf_adapter *adapter,
 			    enum virtchnl_ops op, u8 *msg, u16 len)
 {
 	struct iavf_hw *hw = &adapter->hw;
-	enum iavf_status err;
+	enum iavf_status status;
 
 	if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED)
 		return 0; /* nothing to see here, move along */
 
-	err = iavf_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL);
-	if (err)
-		dev_dbg(&adapter->pdev->dev, "Unable to send opcode %d to PF, err %s, aq_err %s\n",
-			op, iavf_stat_str(hw, err),
+	status = iavf_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL);
+	if (status)
+		dev_dbg(&adapter->pdev->dev, "Unable to send opcode %d to PF, status %s, aq_err %s\n",
+			op, iavf_stat_str(hw, status),
 			iavf_aq_str(hw, hw->aq.asq_last_status));
-	return err;
+	return iavf_status_to_errno(status);
 }
 
 /**
@@ -1827,11 +1827,13 @@ void iavf_del_adv_rss_cfg(struct iavf_adapter *adapter)
  *
  * Request that the PF reset this VF. No response is expected.
  **/
-void iavf_request_reset(struct iavf_adapter *adapter)
+int iavf_request_reset(struct iavf_adapter *adapter)
 {
+	int err;
 	/* Don't check CURRENT_OP - this is always higher priority */
-	iavf_send_pf_msg(adapter, VIRTCHNL_OP_RESET_VF, NULL, 0);
+	err = iavf_send_pf_msg(adapter, VIRTCHNL_OP_RESET_VF, NULL, 0);
 	adapter->current_op = VIRTCHNL_OP_UNKNOWN;
+	return err;
 }
 
 /**
-- 
2.34.1

[PATCH AUTOSEL 5.17 112/149] macvtap: advertise link netns via netlink

[Sasha Levin]

From: Sven Eckelmann <sven@narfation.org>

[ Upstream commit a02192151b7dbf855084c38dca380d77c7658353 ]

Assign rtnl_link_ops->get_link_net() callback so that IFLA_LINK_NETNSID is
added to rtnetlink messages. This fixes iproute2 which otherwise resolved
the link interface to an interface in the wrong namespace.

Test commands:

  ip netns add nst
  ip link add dummy0 type dummy
  ip link add link macvtap0 link dummy0 type macvtap
  ip link set macvtap0 netns nst
  ip -netns nst link show macvtap0

Before:

  10: macvtap0@gre0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 500
      link/ether 5e:8f:ae:1d:60:50 brd ff:ff:ff:ff:ff:ff

After:

  10: macvtap0@if2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 500
      link/ether 5e:8f:ae:1d:60:50 brd ff:ff:ff:ff:ff:ff link-netnsid 0

Reported-by: Leonardo Mörlein <freifunk@irrelefant.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Link: https://lore.kernel.org/r/20220228003240.1337426-1-sven@narfation.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/macvtap.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 6b12902a803f..cecf8c63096c 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -133,11 +133,17 @@ static void macvtap_setup(struct net_device *dev)
 	dev->tx_queue_len = TUN_READQ_SIZE;
 }
 
+static struct net *macvtap_link_net(const struct net_device *dev)
+{
+	return dev_net(macvlan_dev_real_dev(dev));
+}
+
 static struct rtnl_link_ops macvtap_link_ops __read_mostly = {
 	.kind		= "macvtap",
 	.setup		= macvtap_setup,
 	.newlink	= macvtap_newlink,
 	.dellink	= macvtap_dellink,
+	.get_link_net	= macvtap_link_net,
 	.priv_size      = sizeof(struct macvtap_dev),
 };
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 113/149] platform/x86: thinkpad_acpi: Add dual fan probe

[Sasha Levin]

From: Mark Pearson <markpearson@lenovo.com>

[ Upstream commit bf779aaf56ea23864e39e9862b3b3a8436236e07 ]

Instead of having quirks for systems that have a second fan it would
be nice to detect this setup.
Unfortunately, confirmed by the Lenovo FW team, there is no way to
retrieve this information from the EC or BIOS. Recommendation was to
attempt to read the fan and if successful then assume a 2nd fan is
present.

The fans are also supposed to spin up on boot for some time, so in
theory we could check for a speed > 0. In testing this seems to hold
true but as I couldn't test on all platforms I've avoided implementing
this. It also breaks for the corner case where you load the module
once the fans are idle.

Tested on P1G4, P1G3, X1C9 and T14 (no fans) and it works correctly.
For the platforms with dual fans where it was confirmed to work I have
removed the quirks. Potentially this could be done for all platforms
but I've left untested platforms in for now. On these platforms the
fans will be enabled and then detected - so no impact.

Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20220222185137.4325-1-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/thinkpad_acpi.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 3424b080db77..3fb8cda31eb9 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -8699,10 +8699,7 @@ static const struct tpacpi_quirk fan_quirk_table[] __initconst = {
 	TPACPI_Q_LNV3('N', '2', 'N', TPACPI_FAN_2CTL),	/* P53 / P73 */
 	TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL),	/* P1 / X1 Extreme (1st gen) */
 	TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL),	/* P1 / X1 Extreme (2nd gen) */
-	TPACPI_Q_LNV3('N', '2', 'V', TPACPI_FAN_2CTL),	/* P1 / X1 Extreme (3nd gen) */
-	TPACPI_Q_LNV3('N', '4', '0', TPACPI_FAN_2CTL),	/* P1 / X1 Extreme (4nd gen) */
 	TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL),	/* P15 (1st gen) / P15v (1st gen) */
-	TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL),	/* X1 Carbon (9th gen) */
 	TPACPI_Q_LNV3('N', '3', '7', TPACPI_FAN_2CTL),  /* T15g (2nd gen) */
 	TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN),	/* X1 Tablet (2nd gen) */
 };
@@ -8746,6 +8743,9 @@ static int __init fan_init(struct ibm_init_struct *iibm)
 		 * ThinkPad ECs supports the fan control register */
 		if (likely(acpi_ec_read(fan_status_offset,
 					&fan_control_initial_status))) {
+			int res;
+			unsigned int speed;
+
 			fan_status_access_mode = TPACPI_FAN_RD_TPEC;
 			if (quirks & TPACPI_FAN_Q1)
 				fan_quirk1_setup();
@@ -8758,6 +8758,15 @@ static int __init fan_init(struct ibm_init_struct *iibm)
 				tp_features.second_fan_ctl = 1;
 				pr_info("secondary fan control enabled\n");
 			}
+			/* Try and probe the 2nd fan */
+			res = fan2_get_speed(&speed);
+			if (res >= 0) {
+				/* It responded - so let's assume it's there */
+				tp_features.second_fan = 1;
+				tp_features.second_fan_ctl = 1;
+				pr_info("secondary fan control detected & enabled\n");
+			}
+
 		} else {
 			pr_err("ThinkPad ACPI EC access misbehaving, fan status and control unavailable\n");
 			return -ENODEV;
-- 
2.34.1

[PATCH AUTOSEL 5.17 114/149] tuntap: add sanity checks about msg_controllen in sendmsg

[Sasha Levin]

From: Harold Huang <baymaxhuang@gmail.com>

[ Upstream commit 74a335a07a17d131b9263bfdbdcb5e40673ca9ca ]

In patch [1], tun_msg_ctl was added to allow pass batched xdp buffers to
tun_sendmsg. Although we donot use msg_controllen in this path, we should
check msg_controllen to make sure the caller pass a valid msg_ctl.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fe8dd45bb7556246c6b76277b1ba4296c91c2505

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Harold Huang <baymaxhuang@gmail.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20220303022441.383865-1-baymaxhuang@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/tap.c   | 3 ++-
 drivers/net/tun.c   | 3 ++-
 drivers/vhost/net.c | 1 +
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/tap.c b/drivers/net/tap.c
index 8e3a28ba6b28..ba2ef5437e16 100644
--- a/drivers/net/tap.c
+++ b/drivers/net/tap.c
@@ -1198,7 +1198,8 @@ static int tap_sendmsg(struct socket *sock, struct msghdr *m,
 	struct xdp_buff *xdp;
 	int i;
 
-	if (ctl && (ctl->type == TUN_MSG_PTR)) {
+	if (m->msg_controllen == sizeof(struct tun_msg_ctl) &&
+	    ctl && ctl->type == TUN_MSG_PTR) {
 		for (i = 0; i < ctl->num; i++) {
 			xdp = &((struct xdp_buff *)ctl->ptr)[i];
 			tap_get_user_xdp(q, xdp);
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index fed85447701a..de999e0fedbc 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -2489,7 +2489,8 @@ static int tun_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len)
 	if (!tun)
 		return -EBADFD;
 
-	if (ctl && (ctl->type == TUN_MSG_PTR)) {
+	if (m->msg_controllen == sizeof(struct tun_msg_ctl) &&
+	    ctl && ctl->type == TUN_MSG_PTR) {
 		struct tun_page tpage;
 		int n = ctl->num;
 		int flush = 0;
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 28ef323882fb..792ab5f23647 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -473,6 +473,7 @@ static void vhost_tx_batch(struct vhost_net *net,
 		goto signal_used;
 
 	msghdr->msg_control = &ctl;
+	msghdr->msg_controllen = sizeof(ctl);
 	err = sock->ops->sendmsg(sock, msghdr, 0);
 	if (unlikely(err < 0)) {
 		vq_err(&nvq->vq, "Fail to batch sending packets\n");
-- 
2.34.1

[PATCH AUTOSEL 5.17 115/149] iommu/iova: Improve 32-bit free space estimate

[Sasha Levin]

From: Robin Murphy <robin.murphy@arm.com>

[ Upstream commit 5b61343b50590fb04a3f6be2cdc4868091757262 ]

For various reasons based on the allocator behaviour and typical
use-cases at the time, when the max32_alloc_size optimisation was
introduced it seemed reasonable to couple the reset of the tracked
size to the update of cached32_node upon freeing a relevant IOVA.
However, since subsequent optimisations focused on helping genuine
32-bit devices make best use of even more limited address spaces, it
is now a lot more likely for cached32_node to be anywhere in a "full"
32-bit address space, and as such more likely for space to become
available from IOVAs below that node being freed.

At this point, the short-cut in __cached_rbnode_delete_update() really
doesn't hold up any more, and we need to fix the logic to reliably
provide the expected behaviour. We still want cached32_node to only move
upwards, but we should reset the allocation size if *any* 32-bit space
has become available.

Reported-by: Yunfei Wang <yf.wang@mediatek.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/033815732d83ca73b13c11485ac39336f15c3b40.1646318408.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/iova.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index b28c9435b898..170e0f33040e 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -95,10 +95,11 @@ __cached_rbnode_delete_update(struct iova_domain *iovad, struct iova *free)
 	cached_iova = to_iova(iovad->cached32_node);
 	if (free == cached_iova ||
 	    (free->pfn_hi < iovad->dma_32bit_pfn &&
-	     free->pfn_lo >= cached_iova->pfn_lo)) {
+	     free->pfn_lo >= cached_iova->pfn_lo))
 		iovad->cached32_node = rb_next(&free->node);
+
+	if (free->pfn_lo < iovad->dma_32bit_pfn)
 		iovad->max32_alloc_size = iovad->dma_32bit_pfn;
-	}
 
 	cached_iova = to_iova(iovad->cached_node);
 	if (free->pfn_lo >= cached_iova->pfn_lo)
-- 
2.34.1

[PATCH AUTOSEL 5.17 116/149] Bluetooth: mediatek: fix the conflict between mtk and msft vendor event

[Sasha Levin]

From: Sean Wang <sean.wang@mediatek.com>

[ Upstream commit e4412654e260842e1a94ffe0d4026e8a6fd34246 ]

There is a conflict between MediaTek wmt event and msft vendor extension
logic in the core layer since 145373cb1b1f ("Bluetooth: Add framework for
Microsoft vendor extension") was introduced because we changed the type of
mediatek wmt event to the type of msft vendor event in the driver.

But the purpose we reported mediatek event to the core layer is for the
diagnostic purpose with that we are able to see the full packet trace via
monitoring socket with btmon. Thus, it is harmless we keep the original
type of mediatek vendor event here to avoid breaking the msft extension
function especially they can be supported by Mediatek chipset like MT7921
, MT7922 devices and future devices.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bluetooth/btmtk.h     | 1 +
 drivers/bluetooth/btmtksdio.c | 9 +--------
 drivers/bluetooth/btusb.c     | 8 --------
 3 files changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h
index 6e7b0c7567c0..0defa68bc2ce 100644
--- a/drivers/bluetooth/btmtk.h
+++ b/drivers/bluetooth/btmtk.h
@@ -5,6 +5,7 @@
 #define FIRMWARE_MT7668		"mediatek/mt7668pr2h.bin"
 #define FIRMWARE_MT7961		"mediatek/BT_RAM_CODE_MT7961_1_2_hdr.bin"
 
+#define HCI_EV_WMT 0xe4
 #define HCI_WMT_MAX_EVENT_SIZE		64
 
 #define BTMTK_WMT_REG_READ 0x2
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index b5ea8d3bffaa..a295a9389892 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -284,13 +284,6 @@ static int btmtksdio_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
 	struct hci_event_hdr *hdr = (void *)skb->data;
 	int err;
 
-	/* Fix up the vendor event id with 0xff for vendor specific instead
-	 * of 0xe4 so that event send via monitoring socket can be parsed
-	 * properly.
-	 */
-	if (hdr->evt == 0xe4)
-		hdr->evt = HCI_EV_VENDOR;
-
 	/* When someone waits for the WMT event, the skb is being cloned
 	 * and being processed the events from there then.
 	 */
@@ -306,7 +299,7 @@ static int btmtksdio_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
 	if (err < 0)
 		goto err_free_skb;
 
-	if (hdr->evt == HCI_EV_VENDOR) {
+	if (hdr->evt == HCI_EV_WMT) {
 		if (test_and_clear_bit(BTMTKSDIO_TX_WAIT_VND_EVT,
 				       &bdev->tx_state)) {
 			/* Barrier to sync with other CPUs */
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index c30d131da784..0959d10a6b84 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2245,7 +2245,6 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
 {
 	struct hci_dev *hdev = urb->context;
 	struct btusb_data *data = hci_get_drvdata(hdev);
-	struct hci_event_hdr *hdr;
 	struct sk_buff *skb;
 	int err;
 
@@ -2265,13 +2264,6 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
 		hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
 		skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
 
-		hdr = (void *)skb->data;
-		/* Fix up the vendor event id with 0xff for vendor specific
-		 * instead of 0xe4 so that event send via monitoring socket can
-		 * be parsed properly.
-		 */
-		hdr->evt = 0xff;
-
 		/* When someone waits for the WMT event, the skb is being cloned
 		 * and being processed the events from there then.
 		 */
-- 
2.34.1

[PATCH AUTOSEL 5.17 117/149] Bluetooth: Fix not checking for valid hdev on bt_dev_{info,warn,err,dbg}

[Sasha Levin]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

[ Upstream commit 9b392e0e0b6d026da5a62bb79a08f32e27af858e ]

This fixes attemting to print hdev->name directly which causes them to
print an error:

kernel: read_version:367: (efault): sock 000000006a3008f2

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/bluetooth/bluetooth.h | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index a647e5fabdbd..2aa5e95808a5 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -204,19 +204,21 @@ void bt_err_ratelimited(const char *fmt, ...);
 #define BT_DBG(fmt, ...)	pr_debug(fmt "\n", ##__VA_ARGS__)
 #endif
 
+#define bt_dev_name(hdev) ((hdev) ? (hdev)->name : "null")
+
 #define bt_dev_info(hdev, fmt, ...)				\
-	BT_INFO("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+	BT_INFO("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
 #define bt_dev_warn(hdev, fmt, ...)				\
-	BT_WARN("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+	BT_WARN("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
 #define bt_dev_err(hdev, fmt, ...)				\
-	BT_ERR("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+	BT_ERR("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
 #define bt_dev_dbg(hdev, fmt, ...)				\
-	BT_DBG("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+	BT_DBG("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
 
 #define bt_dev_warn_ratelimited(hdev, fmt, ...)			\
-	bt_warn_ratelimited("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+	bt_warn_ratelimited("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
 #define bt_dev_err_ratelimited(hdev, fmt, ...)			\
-	bt_err_ratelimited("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+	bt_err_ratelimited("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
 
 /* Connection and socket states */
 enum {
-- 
2.34.1

[PATCH AUTOSEL 5.17 118/149] Bluetooth: use memset avoid memory leaks

[Sasha Levin]

From: "Minghao Chi (CGEL ZTE)" <chi.minghao@zte.com.cn>

[ Upstream commit d3715b2333e9a21692ba16ef8645eda584a9515d ]

Use memset to initialize structs to prevent memory leaks
in l2cap_ecred_connect

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@zte.com.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/l2cap_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index e817ff0607a0..8df99c07f272 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1436,6 +1436,7 @@ static void l2cap_ecred_connect(struct l2cap_chan *chan)
 
 	l2cap_ecred_init(chan, 0);
 
+	memset(&data, 0, sizeof(data));
 	data.pdu.req.psm     = chan->psm;
 	data.pdu.req.mtu     = cpu_to_le16(chan->imtu);
 	data.pdu.req.mps     = cpu_to_le16(chan->mps);
-- 
2.34.1

[PATCH AUTOSEL 5.17 119/149] bnxt_en: Eliminate unintended link toggle during FW reset

[Sasha Levin]

From: Michael Chan <michael.chan@broadcom.com>

[ Upstream commit 7c492a2530c1f05441da541307c2534230dfd59b ]

If the flow control settings have been changed, a subsequent FW reset
may cause the ethernet link to toggle unnecessarily.  This link toggle
will increase the down time by a few seconds.

The problem is caused by bnxt_update_phy_setting() detecting a false
mismatch in the flow control settings between the stored software
settings and the current FW settings after the FW reset.  This mismatch
is caused by the AUTONEG bit added to link_info->req_flow_ctrl in an
inconsistent way in bnxt_set_pauseparam() in autoneg mode.  The AUTONEG
bit should not be added to link_info->req_flow_ctrl.

Reviewed-by: Colin Winegarden <colin.winegarden@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 8aaa2335f848..f09b04556c32 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -2101,9 +2101,7 @@ static int bnxt_set_pauseparam(struct net_device *dev,
 		}
 
 		link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
-		if (bp->hwrm_spec_code >= 0x10201)
-			link_info->req_flow_ctrl =
-				PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE;
+		link_info->req_flow_ctrl = 0;
 	} else {
 		/* when transition from auto pause to force pause,
 		 * force a link change
-- 
2.34.1

[PATCH AUTOSEL 5.17 120/149] PCI: endpoint: Fix misused goto label

[Sasha Levin]

From: Li Chen <lchen@ambarella.com>

[ Upstream commit bf8d87c076f55b8b4dfdb6bc6c6b6dc0c2ccb487 ]

Fix a misused goto label jump since that can result in a memory leak.

Link: https://lore.kernel.org/r/17e7b9b9ee6.c6d9c6a02564.4545388417402742326@zohomail.com
Signed-off-by: Li Chen <lchen@ambarella.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/endpoint/functions/pci-epf-test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index c7e45633beaf..5b833f00e980 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -451,7 +451,7 @@ static int pci_epf_test_write(struct pci_epf_test *epf_test)
 		if (!epf_test->dma_supported) {
 			dev_err(dev, "Cannot transfer data using DMA\n");
 			ret = -EINVAL;
-			goto err_map_addr;
+			goto err_dma_map;
 		}
 
 		src_phys_addr = dma_map_single(dma_dev, buf, reg->size,
-- 
2.34.1

[PATCH AUTOSEL 5.17 121/149] MIPS: fix fortify panic when copying asm exception handlers

[Sasha Levin]

From: Alexander Lobakin <alobakin@pm.me>

[ Upstream commit d17b66417308996e7e64b270a3c7f3c1fbd4cfc8 ]

With KCFLAGS="-O3", I was able to trigger a fortify-source
memcpy() overflow panic on set_vi_srs_handler().
Although O3 level is not supported in the mainline, under some
conditions that may've happened with any optimization settings,
it's just a matter of inlining luck. The panic itself is correct,
more precisely, 50/50 false-positive and not at the same time.
From the one side, no real overflow happens. Exception handler
defined in asm just gets copied to some reserved places in the
memory.
But the reason behind is that C code refers to that exception
handler declares it as `char`, i.e. something of 1 byte length.
It's obvious that the asm function itself is way more than 1 byte,
so fortify logics thought we are going to past the symbol declared.
The standard way to refer to asm symbols from C code which is not
supposed to be called from C is to declare them as
`extern const u8[]`. This is fully correct from any point of view,
as any code itself is just a bunch of bytes (including 0 as it is
for syms like _stext/_etext/etc.), and the exact size is not known
at the moment of compilation.
Adjust the type of the except_vec_vi_*() and related variables.
Make set_handler() take `const` as a second argument to avoid
cast-away warnings and give a little more room for optimization.

Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/include/asm/setup.h |  2 +-
 arch/mips/kernel/traps.c      | 22 +++++++++++-----------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/mips/include/asm/setup.h b/arch/mips/include/asm/setup.h
index bb36a400203d..8c56b862fd9c 100644
--- a/arch/mips/include/asm/setup.h
+++ b/arch/mips/include/asm/setup.h
@@ -16,7 +16,7 @@ static inline void setup_8250_early_printk_port(unsigned long base,
 	unsigned int reg_shift, unsigned int timeout) {}
 #endif
 
-extern void set_handler(unsigned long offset, void *addr, unsigned long len);
+void set_handler(unsigned long offset, const void *addr, unsigned long len);
 extern void set_uncached_handler(unsigned long offset, void *addr, unsigned long len);
 
 typedef void (*vi_handler_t)(void);
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index a486486b2355..246c6a6b0261 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -2091,19 +2091,19 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs)
 		 * If no shadow set is selected then use the default handler
 		 * that does normal register saving and standard interrupt exit
 		 */
-		extern char except_vec_vi, except_vec_vi_lui;
-		extern char except_vec_vi_ori, except_vec_vi_end;
-		extern char rollback_except_vec_vi;
-		char *vec_start = using_rollback_handler() ?
-			&rollback_except_vec_vi : &except_vec_vi;
+		extern const u8 except_vec_vi[], except_vec_vi_lui[];
+		extern const u8 except_vec_vi_ori[], except_vec_vi_end[];
+		extern const u8 rollback_except_vec_vi[];
+		const u8 *vec_start = using_rollback_handler() ?
+				      rollback_except_vec_vi : except_vec_vi;
 #if defined(CONFIG_CPU_MICROMIPS) || defined(CONFIG_CPU_BIG_ENDIAN)
-		const int lui_offset = &except_vec_vi_lui - vec_start + 2;
-		const int ori_offset = &except_vec_vi_ori - vec_start + 2;
+		const int lui_offset = except_vec_vi_lui - vec_start + 2;
+		const int ori_offset = except_vec_vi_ori - vec_start + 2;
 #else
-		const int lui_offset = &except_vec_vi_lui - vec_start;
-		const int ori_offset = &except_vec_vi_ori - vec_start;
+		const int lui_offset = except_vec_vi_lui - vec_start;
+		const int ori_offset = except_vec_vi_ori - vec_start;
 #endif
-		const int handler_len = &except_vec_vi_end - vec_start;
+		const int handler_len = except_vec_vi_end - vec_start;
 
 		if (handler_len > VECTORSPACING) {
 			/*
@@ -2311,7 +2311,7 @@ void per_cpu_trap_init(bool is_boot_cpu)
 }
 
 /* Install CPU exception handler */
-void set_handler(unsigned long offset, void *addr, unsigned long size)
+void set_handler(unsigned long offset, const void *addr, unsigned long size)
 {
 #ifdef CONFIG_CPU_MICROMIPS
 	memcpy((void *)(ebase + offset), ((unsigned char *)addr - 1), size);
-- 
2.34.1

[PATCH AUTOSEL 5.17 122/149] powerpc/code-patching: Pre-map patch area

[Sasha Levin]

From: Michael Ellerman <mpe@ellerman.id.au>

[ Upstream commit 591b4b268435f00d2f0b81f786c2c7bd5ef66416 ]

Paul reported a warning with DEBUG_ATOMIC_SLEEP=y:

  BUG: sleeping function called from invalid context at include/linux/sched/mm.h:256
  in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1, name: swapper/0
  preempt_count: 0, expected: 0
  ...
  Call Trace:
    dump_stack_lvl+0xa0/0xec (unreliable)
    __might_resched+0x2f4/0x310
    kmem_cache_alloc+0x220/0x4b0
    __pud_alloc+0x74/0x1d0
    hash__map_kernel_page+0x2cc/0x390
    do_patch_instruction+0x134/0x4a0
    arch_jump_label_transform+0x64/0x78
    __jump_label_update+0x148/0x180
    static_key_enable_cpuslocked+0xd0/0x120
    static_key_enable+0x30/0x50
    check_kvm_guest+0x60/0x88
    pSeries_smp_probe+0x54/0xb0
    smp_prepare_cpus+0x3e0/0x430
    kernel_init_freeable+0x20c/0x43c
    kernel_init+0x30/0x1a0
    ret_from_kernel_thread+0x5c/0x64

Peter pointed out that this is because do_patch_instruction() has
disabled interrupts, but then map_patch_area() calls map_kernel_page()
then hash__map_kernel_page() which does a sleeping memory allocation.

We only see the warning in KVM guests with SMT enabled, which is not
particularly common, or on other platforms if CONFIG_KPROBES is
disabled, also not common. The reason we don't see it in most
configurations is that another path that happens to have interrupts
enabled has allocated the required page tables for us, eg. there's a
path in kprobes init that does that. That's just pure luck though.

As Christophe suggested, the simplest solution is to do a dummy
map/unmap when we initialise the patching, so that any required page
table levels are pre-allocated before the first call to
do_patch_instruction(). This works because the unmap doesn't free any
page tables that were allocated by the map, it just clears the PTE,
leaving the page table levels there for the next map.

Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Debugged-by: Peter Zijlstra <peterz@infradead.org>
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220223015821.473097-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/lib/code-patching.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
index 906d43463366..00c68e7fb11e 100644
--- a/arch/powerpc/lib/code-patching.c
+++ b/arch/powerpc/lib/code-patching.c
@@ -43,9 +43,14 @@ int raw_patch_instruction(u32 *addr, ppc_inst_t instr)
 #ifdef CONFIG_STRICT_KERNEL_RWX
 static DEFINE_PER_CPU(struct vm_struct *, text_poke_area);
 
+static int map_patch_area(void *addr, unsigned long text_poke_addr);
+static void unmap_patch_area(unsigned long addr);
+
 static int text_area_cpu_up(unsigned int cpu)
 {
 	struct vm_struct *area;
+	unsigned long addr;
+	int err;
 
 	area = get_vm_area(PAGE_SIZE, VM_ALLOC);
 	if (!area) {
@@ -53,6 +58,15 @@ static int text_area_cpu_up(unsigned int cpu)
 			cpu);
 		return -1;
 	}
+
+	// Map/unmap the area to ensure all page tables are pre-allocated
+	addr = (unsigned long)area->addr;
+	err = map_patch_area(empty_zero_page, addr);
+	if (err)
+		return err;
+
+	unmap_patch_area(addr);
+
 	this_cpu_write(text_poke_area, area);
 
 	return 0;
-- 
2.34.1

[PATCH AUTOSEL 5.17 123/149] powerpc/64e: Tie PPC_BOOK3E_64 to PPC_FSL_BOOK3E

[Sasha Levin]

From: Michael Ellerman <mpe@ellerman.id.au>

[ Upstream commit 1a76e520ee1831a81dabf8a9a58c6453f700026e ]

Since the IBM A2 CPU support was removed, see commit
fb5a515704d7 ("powerpc: Remove platforms/wsp and associated pieces"),
the only 64-bit Book3E CPUs we support are Freescale (NXP) ones.

However our Kconfig still allows configurating a kernel that has 64-bit
Book3E support, but no Freescale CPU support enabled. Such a kernel
would never boot, it doesn't know about any CPUs.

It also causes build errors, as reported by lkp, because
PPC_BARRIER_NOSPEC is not enabled in such a configuration:

  powerpc64-linux-ld: arch/powerpc/net/bpf_jit_comp64.o:(.toc+0x0):
  undefined reference to `powerpc_security_features'

To fix this, force PPC_FSL_BOOK3E to be selected whenever we are
building a 64-bit Book3E kernel.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220304061222.2478720-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/Kconfig.cputype | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 87bc1929ee5a..e2e1fec91c6e 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -107,6 +107,7 @@ config PPC_BOOK3S_64
 
 config PPC_BOOK3E_64
 	bool "Embedded processors"
+	select PPC_FSL_BOOK3E
 	select PPC_FPU # Make it a choice ?
 	select PPC_SMP_MUXED_IPI
 	select PPC_DOORBELL
@@ -295,7 +296,7 @@ config FSL_BOOKE
 config PPC_FSL_BOOK3E
 	bool
 	select ARCH_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
-	select FSL_EMB_PERFMON
+	imply FSL_EMB_PERFMON
 	select PPC_SMP_MUXED_IPI
 	select PPC_DOORBELL
 	select PPC_KUEP
-- 
2.34.1

[PATCH AUTOSEL 5.17 124/149] powerpc/secvar: fix refcount leak in format_show()

[Sasha Levin]

From: Hangyu Hua <hbh25y@gmail.com>

[ Upstream commit d601fd24e6964967f115f036a840f4f28488f63f ]

Refcount leak will happen when format_show returns failure in multiple
cases. Unified management of of_node_put can fix this problem.

Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220302021959.10959-1-hbh25y@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/secvar-sysfs.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/secvar-sysfs.c b/arch/powerpc/kernel/secvar-sysfs.c
index a0a78aba2083..1ee4640a2641 100644
--- a/arch/powerpc/kernel/secvar-sysfs.c
+++ b/arch/powerpc/kernel/secvar-sysfs.c
@@ -26,15 +26,18 @@ static ssize_t format_show(struct kobject *kobj, struct kobj_attribute *attr,
 	const char *format;
 
 	node = of_find_compatible_node(NULL, NULL, "ibm,secvar-backend");
-	if (!of_device_is_available(node))
-		return -ENODEV;
+	if (!of_device_is_available(node)) {
+		rc = -ENODEV;
+		goto out;
+	}
 
 	rc = of_property_read_string(node, "format", &format);
 	if (rc)
-		return rc;
+		goto out;
 
 	rc = sprintf(buf, "%s\n", format);
 
+out:
 	of_node_put(node);
 
 	return rc;
-- 
2.34.1

[PATCH AUTOSEL 5.17 125/149] scsi: libfc: Fix use after free in fc_exch_abts_resp()

[Sasha Levin]

From: Jianglei Nie <niejianglei2021@163.com>

[ Upstream commit 271add11994ba1a334859069367e04d2be2ebdd4 ]

fc_exch_release(ep) will decrease the ep's reference count. When the
reference count reaches zero, it is freed. But ep is still used in the
following code, which will lead to a use after free.

Return after the fc_exch_release() call to avoid use after free.

Link: https://lore.kernel.org/r/20220303015115.459778-1-niejianglei2021@163.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/libfc/fc_exch.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 841000445b9a..aa223db4cf53 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -1701,6 +1701,7 @@ static void fc_exch_abts_resp(struct fc_exch *ep, struct fc_frame *fp)
 	if (cancel_delayed_work_sync(&ep->timeout_work)) {
 		FC_EXCH_DBG(ep, "Exchange timer canceled due to ABTS response\n");
 		fc_exch_release(ep);	/* release from pending timer hold */
+		return;
 	}
 
 	spin_lock_bh(&ep->ex_lock);
-- 
2.34.1

[PATCH AUTOSEL 5.17 126/149] platform/x86: x86-android-tablets: Depend on EFI and SPI

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 1e8aa2aa1274953e8e595f0630436744597d0d64 ]

The recently added support for Lenovo Yoga Tablet 2 tablets uses
symbols from EFI and SPI add "depends on EFI && SPI" to the
X86_ANDROID_TABLETS Kconfig entry.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220308152942.262130-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 24deeeb29af2..53abd553b842 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1027,7 +1027,7 @@ config TOUCHSCREEN_DMI
 
 config X86_ANDROID_TABLETS
 	tristate "X86 Android tablet support"
-	depends on I2C && SERIAL_DEV_BUS && ACPI && GPIOLIB
+	depends on I2C && SPI && SERIAL_DEV_BUS && ACPI && EFI && GPIOLIB
 	help
 	  X86 tablets which ship with Android as (part of) the factory image
 	  typically have various problems with their DSDTs. The factory kernels
-- 
2.34.1

[PATCH AUTOSEL 5.17 127/149] can: isotp: set default value for N_As to 50 micro seconds

[Sasha Levin]

From: Oliver Hartkopp <socketcan@hartkopp.net>

[ Upstream commit 530e0d46c61314c59ecfdb8d3bcb87edbc0f85d3 ]

The N_As value describes the time a CAN frame needs on the wire when
transmitted by the CAN controller. Even very short CAN FD frames need
arround 100 usecs (bitrate 1Mbit/s, data bitrate 8Mbit/s).

Having N_As to be zero (the former default) leads to 'no CAN frame
separation' when STmin is set to zero by the receiving node. This 'burst
mode' should not be enabled by default as it could potentially dump a high
number of CAN frames into the netdev queue from the soft hrtimer context.
This does not affect the system stability but is just not nice and
cooperative.

With this N_As/frame_txtime value the 'burst mode' is disabled by default.

As user space applications usually do not set the frame_txtime element
of struct can_isotp_options the new in-kernel default is very likely
overwritten with zero when the sockopt() CAN_ISOTP_OPTS is invoked.
To make sure that a N_As value of zero is only set intentional the
value '0' is now interpreted as 'do not change the current value'.
When a frame_txtime of zero is required for testing purposes this
CAN_ISOTP_FRAME_TXTIME_ZERO u32 value has to be set in frame_txtime.

Link: https://lore.kernel.org/all/20220309120416.83514-2-socketcan@hartkopp.net
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/uapi/linux/can/isotp.h | 28 ++++++++++++++++++++++------
 net/can/isotp.c                | 12 +++++++++++-
 2 files changed, 33 insertions(+), 7 deletions(-)

diff --git a/include/uapi/linux/can/isotp.h b/include/uapi/linux/can/isotp.h
index c55935b64ccc..590f8aea2b6d 100644
--- a/include/uapi/linux/can/isotp.h
+++ b/include/uapi/linux/can/isotp.h
@@ -137,20 +137,16 @@ struct can_isotp_ll_options {
 #define CAN_ISOTP_WAIT_TX_DONE	0x400	/* wait for tx completion */
 #define CAN_ISOTP_SF_BROADCAST	0x800	/* 1-to-N functional addressing */
 
-/* default values */
+/* protocol machine default values */
 
 #define CAN_ISOTP_DEFAULT_FLAGS		0
 #define CAN_ISOTP_DEFAULT_EXT_ADDRESS	0x00
 #define CAN_ISOTP_DEFAULT_PAD_CONTENT	0xCC /* prevent bit-stuffing */
-#define CAN_ISOTP_DEFAULT_FRAME_TXTIME	0
+#define CAN_ISOTP_DEFAULT_FRAME_TXTIME	50000 /* 50 micro seconds */
 #define CAN_ISOTP_DEFAULT_RECV_BS	0
 #define CAN_ISOTP_DEFAULT_RECV_STMIN	0x00
 #define CAN_ISOTP_DEFAULT_RECV_WFTMAX	0
 
-#define CAN_ISOTP_DEFAULT_LL_MTU	CAN_MTU
-#define CAN_ISOTP_DEFAULT_LL_TX_DL	CAN_MAX_DLEN
-#define CAN_ISOTP_DEFAULT_LL_TX_FLAGS	0
-
 /*
  * Remark on CAN_ISOTP_DEFAULT_RECV_* values:
  *
@@ -162,4 +158,24 @@ struct can_isotp_ll_options {
  * consistency and copied directly into the flow control (FC) frame.
  */
 
+/* link layer default values => make use of Classical CAN frames */
+
+#define CAN_ISOTP_DEFAULT_LL_MTU	CAN_MTU
+#define CAN_ISOTP_DEFAULT_LL_TX_DL	CAN_MAX_DLEN
+#define CAN_ISOTP_DEFAULT_LL_TX_FLAGS	0
+
+/*
+ * The CAN_ISOTP_DEFAULT_FRAME_TXTIME has become a non-zero value as
+ * it only makes sense for isotp implementation tests to run without
+ * a N_As value. As user space applications usually do not set the
+ * frame_txtime element of struct can_isotp_options the new in-kernel
+ * default is very likely overwritten with zero when the sockopt()
+ * CAN_ISOTP_OPTS is invoked.
+ * To make sure that a N_As value of zero is only set intentional the
+ * value '0' is now interpreted as 'do not change the current value'.
+ * When a frame_txtime of zero is required for testing purposes this
+ * CAN_ISOTP_FRAME_TXTIME_ZERO u32 value has to be set in frame_txtime.
+ */
+#define CAN_ISOTP_FRAME_TXTIME_ZERO	0xFFFFFFFF
+
 #endif /* !_UAPI_CAN_ISOTP_H */
diff --git a/net/can/isotp.c b/net/can/isotp.c
index d2a430b6a13b..ea8e932008a3 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -141,6 +141,7 @@ struct isotp_sock {
 	struct can_isotp_options opt;
 	struct can_isotp_fc_options rxfc, txfc;
 	struct can_isotp_ll_options ll;
+	u32 frame_txtime;
 	u32 force_tx_stmin;
 	u32 force_rx_stmin;
 	struct tpcon rx, tx;
@@ -360,7 +361,7 @@ static int isotp_rcv_fc(struct isotp_sock *so, struct canfd_frame *cf, int ae)
 
 		so->tx_gap = ktime_set(0, 0);
 		/* add transmission time for CAN frame N_As */
-		so->tx_gap = ktime_add_ns(so->tx_gap, so->opt.frame_txtime);
+		so->tx_gap = ktime_add_ns(so->tx_gap, so->frame_txtime);
 		/* add waiting time for consecutive frames N_Cs */
 		if (so->opt.flags & CAN_ISOTP_FORCE_TXSTMIN)
 			so->tx_gap = ktime_add_ns(so->tx_gap,
@@ -1238,6 +1239,14 @@ static int isotp_setsockopt_locked(struct socket *sock, int level, int optname,
 		/* no separate rx_ext_address is given => use ext_address */
 		if (!(so->opt.flags & CAN_ISOTP_RX_EXT_ADDR))
 			so->opt.rx_ext_address = so->opt.ext_address;
+
+		/* check for frame_txtime changes (0 => no changes) */
+		if (so->opt.frame_txtime) {
+			if (so->opt.frame_txtime == CAN_ISOTP_FRAME_TXTIME_ZERO)
+				so->frame_txtime = 0;
+			else
+				so->frame_txtime = so->opt.frame_txtime;
+		}
 		break;
 
 	case CAN_ISOTP_RECV_FC:
@@ -1439,6 +1448,7 @@ static int isotp_init(struct sock *sk)
 	so->opt.rxpad_content = CAN_ISOTP_DEFAULT_PAD_CONTENT;
 	so->opt.txpad_content = CAN_ISOTP_DEFAULT_PAD_CONTENT;
 	so->opt.frame_txtime = CAN_ISOTP_DEFAULT_FRAME_TXTIME;
+	so->frame_txtime = CAN_ISOTP_DEFAULT_FRAME_TXTIME;
 	so->rxfc.bs = CAN_ISOTP_DEFAULT_RECV_BS;
 	so->rxfc.stmin = CAN_ISOTP_DEFAULT_RECV_STMIN;
 	so->rxfc.wftmax = CAN_ISOTP_DEFAULT_RECV_WFTMAX;
-- 
2.34.1

[PATCH AUTOSEL 5.17 128/149] can: etas_es58x: es58x_fd_rx_event_msg(): initialize rx_event_msg before calling es58x_check_msg_len()

[Sasha Levin]

From: Vincent Mailhol <mailhol.vincent@wanadoo.fr>

[ Upstream commit 7a8cd7c0ee823a1cc893ab3feaa23e4b602bfb9a ]

Function es58x_fd_rx_event() invokes the es58x_check_msg_len() macro:

| 	ret = es58x_check_msg_len(es58x_dev->dev, *rx_event_msg, msg_len);

While doing so, it dereferences an uninitialized
variable: *rx_event_msg.

This is actually harmless because es58x_check_msg_len() only uses
preprocessor macros (sizeof() and __stringify()) on
*rx_event_msg. c.f. [1].

Nonetheless, this pattern is confusing so the lines are reordered to
make sure that rx_event_msg is correctly initialized.

This patch also fixes a false positive warning reported by cppcheck:

| cppcheck possible warnings: (new ones prefixed by >>, may not be real problems)
|
|    In file included from drivers/net/can/usb/etas_es58x/es58x_fd.c:
| >> drivers/net/can/usb/etas_es58x/es58x_fd.c:174:8: warning: Uninitialized variable: rx_event_msg [uninitvar]
|     ret = es58x_check_msg_len(es58x_dev->dev, *rx_event_msg, msg_len);
|           ^

[1] https://elixir.bootlin.com/linux/v5.16/source/drivers/net/can/usb/etas_es58x/es58x_core.h#L467

Link: https://lore.kernel.org/all/20220306101302.708783-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/usb/etas_es58x/es58x_fd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/can/usb/etas_es58x/es58x_fd.c b/drivers/net/can/usb/etas_es58x/es58x_fd.c
index ec87126e1a7d..8ccda748fd08 100644
--- a/drivers/net/can/usb/etas_es58x/es58x_fd.c
+++ b/drivers/net/can/usb/etas_es58x/es58x_fd.c
@@ -172,12 +172,11 @@ static int es58x_fd_rx_event_msg(struct net_device *netdev,
 	const struct es58x_fd_rx_event_msg *rx_event_msg;
 	int ret;
 
+	rx_event_msg = &es58x_fd_urb_cmd->rx_event_msg;
 	ret = es58x_check_msg_len(es58x_dev->dev, *rx_event_msg, msg_len);
 	if (ret)
 		return ret;
 
-	rx_event_msg = &es58x_fd_urb_cmd->rx_event_msg;
-
 	return es58x_rx_err_msg(netdev, rx_event_msg->error_code,
 				rx_event_msg->event_code,
 				get_unaligned_le64(&rx_event_msg->timestamp));
-- 
2.34.1

[PATCH AUTOSEL 5.17 129/149] riscv: Fixed misaligned memory access. Fixed pointer comparison.

[Sasha Levin]

From: "Michael T. Kloos" <michael@michaelkloos.com>

[ Upstream commit 9d1f0ec9f71780e69ceb9d91697600c747d6e02e ]

Rewrote the RISC-V memmove() assembly implementation.  The
previous implementation did not check memory alignment and it
compared 2 pointers with a signed comparison.  The misaligned
memory access would cause the kernel to crash on systems that
did not emulate it in firmware and did not support it in hardware.
Firmware emulation is slow and may not exist.  The RISC-V spec
does not guarantee that support for misaligned memory accesses
will exist.  It should not be depended on.

This patch now checks for XLEN granularity of co-alignment between
the pointers.  Failing that, copying is done by loading from the 2
contiguous and naturally aligned XLEN memory locations containing
the overlapping XLEN sized data to be copied.  The data is shifted
into the correct place and binary or'ed together on each
iteration.  The result is then stored into the corresponding
naturally aligned XLEN sized location in the destination.  For
unaligned data at the terminations of the regions to be copied
or for copies less than (2 * XLEN) in size, byte copy is used.

This patch also now uses unsigned comparison for the pointers and
migrates to the newer assembler annotations from the now deprecated
ones.

Signed-off-by: Michael T. Kloos <michael@michaelkloos.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/riscv/lib/memmove.S | 368 +++++++++++++++++++++++++++++++++------
 1 file changed, 310 insertions(+), 58 deletions(-)

diff --git a/arch/riscv/lib/memmove.S b/arch/riscv/lib/memmove.S
index 07d1d2152ba5..e0609e1f0864 100644
--- a/arch/riscv/lib/memmove.S
+++ b/arch/riscv/lib/memmove.S
@@ -1,64 +1,316 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2022 Michael T. Kloos <michael@michaelkloos.com>
+ */
 
 #include <linux/linkage.h>
 #include <asm/asm.h>
 
-ENTRY(__memmove)
-WEAK(memmove)
-        move    t0, a0
-        move    t1, a1
-
-        beq     a0, a1, exit_memcpy
-        beqz    a2, exit_memcpy
-        srli    t2, a2, 0x2
-
-        slt     t3, a0, a1
-        beqz    t3, do_reverse
-
-        andi    a2, a2, 0x3
-        li      t4, 1
-        beqz    t2, byte_copy
-
-word_copy:
-        lw      t3, 0(a1)
-        addi    t2, t2, -1
-        addi    a1, a1, 4
-        sw      t3, 0(a0)
-        addi    a0, a0, 4
-        bnez    t2, word_copy
-        beqz    a2, exit_memcpy
-        j       byte_copy
-
-do_reverse:
-        add     a0, a0, a2
-        add     a1, a1, a2
-        andi    a2, a2, 0x3
-        li      t4, -1
-        beqz    t2, reverse_byte_copy
-
-reverse_word_copy:
-        addi    a1, a1, -4
-        addi    t2, t2, -1
-        lw      t3, 0(a1)
-        addi    a0, a0, -4
-        sw      t3, 0(a0)
-        bnez    t2, reverse_word_copy
-        beqz    a2, exit_memcpy
-
-reverse_byte_copy:
-        addi    a0, a0, -1
-        addi    a1, a1, -1
+SYM_FUNC_START(__memmove)
+SYM_FUNC_START_WEAK(memmove)
+	/*
+	 * Returns
+	 *   a0 - dest
+	 *
+	 * Parameters
+	 *   a0 - Inclusive first byte of dest
+	 *   a1 - Inclusive first byte of src
+	 *   a2 - Length of copy n
+	 *
+	 * Because the return matches the parameter register a0,
+	 * we will not clobber or modify that register.
+	 *
+	 * Note: This currently only works on little-endian.
+	 * To port to big-endian, reverse the direction of shifts
+	 * in the 2 misaligned fixup copy loops.
+	 */
 
+	/* Return if nothing to do */
+	beq a0, a1, return_from_memmove
+	beqz a2, return_from_memmove
+
+	/*
+	 * Register Uses
+	 *      Forward Copy: a1 - Index counter of src
+	 *      Reverse Copy: a4 - Index counter of src
+	 *      Forward Copy: t3 - Index counter of dest
+	 *      Reverse Copy: t4 - Index counter of dest
+	 *   Both Copy Modes: t5 - Inclusive first multibyte/aligned of dest
+	 *   Both Copy Modes: t6 - Non-Inclusive last multibyte/aligned of dest
+	 *   Both Copy Modes: t0 - Link / Temporary for load-store
+	 *   Both Copy Modes: t1 - Temporary for load-store
+	 *   Both Copy Modes: t2 - Temporary for load-store
+	 *   Both Copy Modes: a5 - dest to src alignment offset
+	 *   Both Copy Modes: a6 - Shift ammount
+	 *   Both Copy Modes: a7 - Inverse Shift ammount
+	 *   Both Copy Modes: a2 - Alternate breakpoint for unrolled loops
+	 */
+
+	/*
+	 * Solve for some register values now.
+	 * Byte copy does not need t5 or t6.
+	 */
+	mv   t3, a0
+	add  t4, a0, a2
+	add  a4, a1, a2
+
+	/*
+	 * Byte copy if copying less than (2 * SZREG) bytes. This can
+	 * cause problems with the bulk copy implementation and is
+	 * small enough not to bother.
+	 */
+	andi t0, a2, -(2 * SZREG)
+	beqz t0, byte_copy
+
+	/*
+	 * Now solve for t5 and t6.
+	 */
+	andi t5, t3, -SZREG
+	andi t6, t4, -SZREG
+	/*
+	 * If dest(Register t3) rounded down to the nearest naturally
+	 * aligned SZREG address, does not equal dest, then add SZREG
+	 * to find the low-bound of SZREG alignment in the dest memory
+	 * region.  Note that this could overshoot the dest memory
+	 * region if n is less than SZREG.  This is one reason why
+	 * we always byte copy if n is less than SZREG.
+	 * Otherwise, dest is already naturally aligned to SZREG.
+	 */
+	beq  t5, t3, 1f
+		addi t5, t5, SZREG
+	1:
+
+	/*
+	 * If the dest and src are co-aligned to SZREG, then there is
+	 * no need for the full rigmarole of a full misaligned fixup copy.
+	 * Instead, do a simpler co-aligned copy.
+	 */
+	xor  t0, a0, a1
+	andi t1, t0, (SZREG - 1)
+	beqz t1, coaligned_copy
+	/* Fall through to misaligned fixup copy */
+
+misaligned_fixup_copy:
+	bltu a1, a0, misaligned_fixup_copy_reverse
+
+misaligned_fixup_copy_forward:
+	jal  t0, byte_copy_until_aligned_forward
+
+	andi a5, a1, (SZREG - 1) /* Find the alignment offset of src (a1) */
+	slli a6, a5, 3 /* Multiply by 8 to convert that to bits to shift */
+	sub  a5, a1, t3 /* Find the difference between src and dest */
+	andi a1, a1, -SZREG /* Align the src pointer */
+	addi a2, t6, SZREG /* The other breakpoint for the unrolled loop*/
+
+	/*
+	 * Compute The Inverse Shift
+	 * a7 = XLEN - a6 = XLEN + -a6
+	 * 2s complement negation to find the negative: -a6 = ~a6 + 1
+	 * Add that to XLEN.  XLEN = SZREG * 8.
+	 */
+	not  a7, a6
+	addi a7, a7, (SZREG * 8 + 1)
+
+	/*
+	 * Fix Misalignment Copy Loop - Forward
+	 * load_val0 = load_ptr[0];
+	 * do {
+	 * 	load_val1 = load_ptr[1];
+	 * 	store_ptr += 2;
+	 * 	store_ptr[0 - 2] = (load_val0 >> {a6}) | (load_val1 << {a7});
+	 *
+	 * 	if (store_ptr == {a2})
+	 * 		break;
+	 *
+	 * 	load_val0 = load_ptr[2];
+	 * 	load_ptr += 2;
+	 * 	store_ptr[1 - 2] = (load_val1 >> {a6}) | (load_val0 << {a7});
+	 *
+	 * } while (store_ptr != store_ptr_end);
+	 * store_ptr = store_ptr_end;
+	 */
+
+	REG_L t0, (0 * SZREG)(a1)
+	1:
+	REG_L t1, (1 * SZREG)(a1)
+	addi  t3, t3, (2 * SZREG)
+	srl   t0, t0, a6
+	sll   t2, t1, a7
+	or    t2, t0, t2
+	REG_S t2, ((0 * SZREG) - (2 * SZREG))(t3)
+
+	beq   t3, a2, 2f
+
+	REG_L t0, (2 * SZREG)(a1)
+	addi  a1, a1, (2 * SZREG)
+	srl   t1, t1, a6
+	sll   t2, t0, a7
+	or    t2, t1, t2
+	REG_S t2, ((1 * SZREG) - (2 * SZREG))(t3)
+
+	bne   t3, t6, 1b
+	2:
+	mv    t3, t6 /* Fix the dest pointer in case the loop was broken */
+
+	add  a1, t3, a5 /* Restore the src pointer */
+	j byte_copy_forward /* Copy any remaining bytes */
+
+misaligned_fixup_copy_reverse:
+	jal  t0, byte_copy_until_aligned_reverse
+
+	andi a5, a4, (SZREG - 1) /* Find the alignment offset of src (a4) */
+	slli a6, a5, 3 /* Multiply by 8 to convert that to bits to shift */
+	sub  a5, a4, t4 /* Find the difference between src and dest */
+	andi a4, a4, -SZREG /* Align the src pointer */
+	addi a2, t5, -SZREG /* The other breakpoint for the unrolled loop*/
+
+	/*
+	 * Compute The Inverse Shift
+	 * a7 = XLEN - a6 = XLEN + -a6
+	 * 2s complement negation to find the negative: -a6 = ~a6 + 1
+	 * Add that to XLEN.  XLEN = SZREG * 8.
+	 */
+	not  a7, a6
+	addi a7, a7, (SZREG * 8 + 1)
+
+	/*
+	 * Fix Misalignment Copy Loop - Reverse
+	 * load_val1 = load_ptr[0];
+	 * do {
+	 * 	load_val0 = load_ptr[-1];
+	 * 	store_ptr -= 2;
+	 * 	store_ptr[1] = (load_val0 >> {a6}) | (load_val1 << {a7});
+	 *
+	 * 	if (store_ptr == {a2})
+	 * 		break;
+	 *
+	 * 	load_val1 = load_ptr[-2];
+	 * 	load_ptr -= 2;
+	 * 	store_ptr[0] = (load_val1 >> {a6}) | (load_val0 << {a7});
+	 *
+	 * } while (store_ptr != store_ptr_end);
+	 * store_ptr = store_ptr_end;
+	 */
+
+	REG_L t1, ( 0 * SZREG)(a4)
+	1:
+	REG_L t0, (-1 * SZREG)(a4)
+	addi  t4, t4, (-2 * SZREG)
+	sll   t1, t1, a7
+	srl   t2, t0, a6
+	or    t2, t1, t2
+	REG_S t2, ( 1 * SZREG)(t4)
+
+	beq   t4, a2, 2f
+
+	REG_L t1, (-2 * SZREG)(a4)
+	addi  a4, a4, (-2 * SZREG)
+	sll   t0, t0, a7
+	srl   t2, t1, a6
+	or    t2, t0, t2
+	REG_S t2, ( 0 * SZREG)(t4)
+
+	bne   t4, t5, 1b
+	2:
+	mv    t4, t5 /* Fix the dest pointer in case the loop was broken */
+
+	add  a4, t4, a5 /* Restore the src pointer */
+	j byte_copy_reverse /* Copy any remaining bytes */
+
+/*
+ * Simple copy loops for SZREG co-aligned memory locations.
+ * These also make calls to do byte copies for any unaligned
+ * data at their terminations.
+ */
+coaligned_copy:
+	bltu a1, a0, coaligned_copy_reverse
+
+coaligned_copy_forward:
+	jal t0, byte_copy_until_aligned_forward
+
+	1:
+	REG_L t1, ( 0 * SZREG)(a1)
+	addi  a1, a1, SZREG
+	addi  t3, t3, SZREG
+	REG_S t1, (-1 * SZREG)(t3)
+	bne   t3, t6, 1b
+
+	j byte_copy_forward /* Copy any remaining bytes */
+
+coaligned_copy_reverse:
+	jal t0, byte_copy_until_aligned_reverse
+
+	1:
+	REG_L t1, (-1 * SZREG)(a4)
+	addi  a4, a4, -SZREG
+	addi  t4, t4, -SZREG
+	REG_S t1, ( 0 * SZREG)(t4)
+	bne   t4, t5, 1b
+
+	j byte_copy_reverse /* Copy any remaining bytes */
+
+/*
+ * These are basically sub-functions within the function.  They
+ * are used to byte copy until the dest pointer is in alignment.
+ * At which point, a bulk copy method can be used by the
+ * calling code.  These work on the same registers as the bulk
+ * copy loops.  Therefore, the register values can be picked
+ * up from where they were left and we avoid code duplication
+ * without any overhead except the call in and return jumps.
+ */
+byte_copy_until_aligned_forward:
+	beq  t3, t5, 2f
+	1:
+	lb   t1,  0(a1)
+	addi a1, a1, 1
+	addi t3, t3, 1
+	sb   t1, -1(t3)
+	bne  t3, t5, 1b
+	2:
+	jalr zero, 0x0(t0) /* Return to multibyte copy loop */
+
+byte_copy_until_aligned_reverse:
+	beq  t4, t6, 2f
+	1:
+	lb   t1, -1(a4)
+	addi a4, a4, -1
+	addi t4, t4, -1
+	sb   t1,  0(t4)
+	bne  t4, t6, 1b
+	2:
+	jalr zero, 0x0(t0) /* Return to multibyte copy loop */
+
+/*
+ * Simple byte copy loops.
+ * These will byte copy until they reach the end of data to copy.
+ * At that point, they will call to return from memmove.
+ */
 byte_copy:
-        lb      t3, 0(a1)
-        addi    a2, a2, -1
-        sb      t3, 0(a0)
-        add     a1, a1, t4
-        add     a0, a0, t4
-        bnez    a2, byte_copy
-
-exit_memcpy:
-        move a0, t0
-        move a1, t1
-        ret
-END(__memmove)
+	bltu a1, a0, byte_copy_reverse
+
+byte_copy_forward:
+	beq  t3, t4, 2f
+	1:
+	lb   t1,  0(a1)
+	addi a1, a1, 1
+	addi t3, t3, 1
+	sb   t1, -1(t3)
+	bne  t3, t4, 1b
+	2:
+	ret
+
+byte_copy_reverse:
+	beq  t4, t3, 2f
+	1:
+	lb   t1, -1(a4)
+	addi a4, a4, -1
+	addi t4, t4, -1
+	sb   t1,  0(t4)
+	bne  t4, t3, 1b
+	2:
+
+return_from_memmove:
+	ret
+
+SYM_FUNC_END(memmove)
+SYM_FUNC_END(__memmove)
-- 
2.34.1

[PATCH AUTOSEL 5.17 130/149] net: account alternate interface name memory

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 5d26cff5bdbebdf98ba48217c078ff102536f134 ]

George reports that altnames can eat up kernel memory.
We should charge that memory appropriately.

Reported-by: George Shuklin <george.shuklin@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/rtnetlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 2fb8eb6791e8..9c9ad3d4b766 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -3658,7 +3658,7 @@ static int rtnl_alt_ifname(int cmd, struct net_device *dev, struct nlattr *attr,
 	if (err)
 		return err;
 
-	alt_ifname = nla_strdup(attr, GFP_KERNEL);
+	alt_ifname = nla_strdup(attr, GFP_KERNEL_ACCOUNT);
 	if (!alt_ifname)
 		return -ENOMEM;
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 131/149] net: limit altnames to 64k total

[Sasha Levin]

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit 155fb43b70b5fce341347a77d1af2765d1e8fbb8 ]

Property list (altname is a link "property") is wrapped
in a nlattr. nlattrs length is 16bit so practically
speaking the list of properties can't be longer than
that, otherwise user space would have to interpret
broken netlink messages.

Prevent the problem from occurring by checking the length
of the property list before adding new entries.

Reported-by: George Shuklin <george.shuklin@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/rtnetlink.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 9c9ad3d4b766..43b995e935cd 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -3652,12 +3652,23 @@ static int rtnl_alt_ifname(int cmd, struct net_device *dev, struct nlattr *attr,
 			   bool *changed, struct netlink_ext_ack *extack)
 {
 	char *alt_ifname;
+	size_t size;
 	int err;
 
 	err = nla_validate(attr, attr->nla_len, IFLA_MAX, ifla_policy, extack);
 	if (err)
 		return err;
 
+	if (cmd == RTM_NEWLINKPROP) {
+		size = rtnl_prop_list_size(dev);
+		size += nla_total_size(ALTIFNAMSIZ);
+		if (size >= U16_MAX) {
+			NL_SET_ERR_MSG(extack,
+				       "effective property list too long");
+			return -EINVAL;
+		}
+	}
+
 	alt_ifname = nla_strdup(attr, GFP_KERNEL_ACCOUNT);
 	if (!alt_ifname)
 		return -ENOMEM;
-- 
2.34.1

[PATCH AUTOSEL 5.17 132/149] net/mlx5e: Remove overzealous validations in netlink EEPROM query

[Sasha Levin]

From: Gal Pressman <gal@nvidia.com>

[ Upstream commit 970adfb76095fa719778d70a6b86030d2feb88dd ]

Unlike the legacy EEPROM callbacks, when using the netlink EEPROM query
(get_module_eeprom_by_page) the driver should not try to validate the
query parameters, but just perform the read requested by the userspace.

Recent discussion in the mailing list:
https://lore.kernel.org/netdev/20220120093051.70845141@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net/

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/mellanox/mlx5/core/port.c    | 23 -------------------
 1 file changed, 23 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c
index 7b16a1188aab..fd79860de723 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c
@@ -433,35 +433,12 @@ int mlx5_query_module_eeprom_by_page(struct mlx5_core_dev *dev,
 				     struct mlx5_module_eeprom_query_params *params,
 				     u8 *data)
 {
-	u8 module_id;
 	int err;
 
 	err = mlx5_query_module_num(dev, &params->module_number);
 	if (err)
 		return err;
 
-	err = mlx5_query_module_id(dev, params->module_number, &module_id);
-	if (err)
-		return err;
-
-	switch (module_id) {
-	case MLX5_MODULE_ID_SFP:
-		if (params->page > 0)
-			return -EINVAL;
-		break;
-	case MLX5_MODULE_ID_QSFP:
-	case MLX5_MODULE_ID_QSFP28:
-	case MLX5_MODULE_ID_QSFP_PLUS:
-		if (params->page > 3)
-			return -EINVAL;
-		break;
-	case MLX5_MODULE_ID_DSFP:
-		break;
-	default:
-		mlx5_core_err(dev, "Module ID not recognized: 0x%x\n", module_id);
-		return -EINVAL;
-	}
-
 	if (params->i2c_address != MLX5_I2C_ADDR_HIGH &&
 	    params->i2c_address != MLX5_I2C_ADDR_LOW) {
 		mlx5_core_err(dev, "I2C address not recognized: 0x%x\n", params->i2c_address);
-- 
2.34.1

[PATCH AUTOSEL 5.17 133/149] platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method

[Sasha Levin]

From: Jorge Lopez <jorge.lopez2@hp.com>

[ Upstream commit 520ee4ea1cc60251a6e3c911cf0336278aa52634 ]

The purpose of this patch is to introduce a fix and removal of the
current hack when determining tablet mode status.

Determining the tablet mode status requires reading Byte 0 bit 2 as
reported by HPWMI_HARDWARE_QUERY.  The investigation identified the
failure was rooted in two areas: HPWMI_HARDWARE_QUERY failure (0x05)
and reading Byte 0, bit 2 only to determine the table mode status.
HPWMI_HARDWARE_QUERY WMI failure also rendered the dock state value
invalid.

The latest changes use SMBIOS Type 3 (chassis type) and WMI Command
0x40 (device_mode_status) information to determine if the device is
in tablet mode or not.

hp_wmi_hw_state function was split into two functions;
hp_wmi_get_dock_state and hp_wmi_get_tablet_mode.  The new functions
separate how dock_state and tablet_mode is handled in a cleaner
manner.

All changes were validated on a HP ZBook Workstation notebook,
HP EliteBook x360, and HP EliteBook 850 G8.

Signed-off-by: Jorge Lopez <jorge.lopez2@hp.com>
Link: https://lore.kernel.org/r/20220310210853.28367-3-jorge.lopez2@hp.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/hp-wmi.c | 71 +++++++++++++++++++++++++----------
 1 file changed, 52 insertions(+), 19 deletions(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 48a46466f086..f822ef6eb93c 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -35,10 +35,6 @@ MODULE_LICENSE("GPL");
 MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
 MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
 
-static int enable_tablet_mode_sw = -1;
-module_param(enable_tablet_mode_sw, int, 0444);
-MODULE_PARM_DESC(enable_tablet_mode_sw, "Enable SW_TABLET_MODE reporting (-1=auto, 0=no, 1=yes)");
-
 #define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
 #define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
 #define HP_OMEN_EC_THERMAL_PROFILE_OFFSET 0x95
@@ -107,6 +103,7 @@ enum hp_wmi_commandtype {
 	HPWMI_FEATURE2_QUERY		= 0x0d,
 	HPWMI_WIRELESS2_QUERY		= 0x1b,
 	HPWMI_POSTCODEERROR_QUERY	= 0x2a,
+	HPWMI_SYSTEM_DEVICE_MODE	= 0x40,
 	HPWMI_THERMAL_PROFILE_QUERY	= 0x4c,
 };
 
@@ -217,6 +214,19 @@ struct rfkill2_device {
 static int rfkill2_count;
 static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
 
+/*
+ * Chassis Types values were obtained from SMBIOS reference
+ * specification version 3.00. A complete list of system enclosures
+ * and chassis types is available on Table 17.
+ */
+static const char * const tablet_chassis_types[] = {
+	"30", /* Tablet*/
+	"31", /* Convertible */
+	"32"  /* Detachable */
+};
+
+#define DEVICE_MODE_TABLET	0x06
+
 /* map output size to the corresponding WMI method id */
 static inline int encode_outsize_for_pvsz(int outsize)
 {
@@ -345,14 +355,39 @@ static int hp_wmi_read_int(int query)
 	return val;
 }
 
-static int hp_wmi_hw_state(int mask)
+static int hp_wmi_get_dock_state(void)
 {
 	int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY);
 
 	if (state < 0)
 		return state;
 
-	return !!(state & mask);
+	return !!(state & HPWMI_DOCK_MASK);
+}
+
+static int hp_wmi_get_tablet_mode(void)
+{
+	char system_device_mode[4] = { 0 };
+	const char *chassis_type;
+	bool tablet_found;
+	int ret;
+
+	chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
+	if (!chassis_type)
+		return -ENODEV;
+
+	tablet_found = match_string(tablet_chassis_types,
+				    ARRAY_SIZE(tablet_chassis_types),
+				    chassis_type) >= 0;
+	if (!tablet_found)
+		return -ENODEV;
+
+	ret = hp_wmi_perform_query(HPWMI_SYSTEM_DEVICE_MODE, HPWMI_READ,
+				   system_device_mode, 0, sizeof(system_device_mode));
+	if (ret < 0)
+		return ret;
+
+	return system_device_mode[0] == DEVICE_MODE_TABLET;
 }
 
 static int omen_thermal_profile_set(int mode)
@@ -568,7 +603,7 @@ static ssize_t als_show(struct device *dev, struct device_attribute *attr,
 static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
-	int value = hp_wmi_hw_state(HPWMI_DOCK_MASK);
+	int value = hp_wmi_get_dock_state();
 	if (value < 0)
 		return value;
 	return sprintf(buf, "%d\n", value);
@@ -577,7 +612,7 @@ static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
 static ssize_t tablet_show(struct device *dev, struct device_attribute *attr,
 			   char *buf)
 {
-	int value = hp_wmi_hw_state(HPWMI_TABLET_MASK);
+	int value = hp_wmi_get_tablet_mode();
 	if (value < 0)
 		return value;
 	return sprintf(buf, "%d\n", value);
@@ -699,10 +734,10 @@ static void hp_wmi_notify(u32 value, void *context)
 	case HPWMI_DOCK_EVENT:
 		if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
 			input_report_switch(hp_wmi_input_dev, SW_DOCK,
-					    hp_wmi_hw_state(HPWMI_DOCK_MASK));
+					    hp_wmi_get_dock_state());
 		if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
 			input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
-					    hp_wmi_hw_state(HPWMI_TABLET_MASK));
+					    hp_wmi_get_tablet_mode());
 		input_sync(hp_wmi_input_dev);
 		break;
 	case HPWMI_PARK_HDD:
@@ -780,19 +815,17 @@ static int __init hp_wmi_input_setup(void)
 	__set_bit(EV_SW, hp_wmi_input_dev->evbit);
 
 	/* Dock */
-	val = hp_wmi_hw_state(HPWMI_DOCK_MASK);
+	val = hp_wmi_get_dock_state();
 	if (!(val < 0)) {
 		__set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
 		input_report_switch(hp_wmi_input_dev, SW_DOCK, val);
 	}
 
 	/* Tablet mode */
-	if (enable_tablet_mode_sw > 0) {
-		val = hp_wmi_hw_state(HPWMI_TABLET_MASK);
-		if (val >= 0) {
-			__set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
-			input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val);
-		}
+	val = hp_wmi_get_tablet_mode();
+	if (!(val < 0)) {
+		__set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
+		input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val);
 	}
 
 	err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
@@ -1227,10 +1260,10 @@ static int hp_wmi_resume_handler(struct device *device)
 	if (hp_wmi_input_dev) {
 		if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
 			input_report_switch(hp_wmi_input_dev, SW_DOCK,
-					    hp_wmi_hw_state(HPWMI_DOCK_MASK));
+					    hp_wmi_get_dock_state());
 		if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
 			input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
-					    hp_wmi_hw_state(HPWMI_TABLET_MASK));
+					    hp_wmi_get_tablet_mode());
 		input_sync(hp_wmi_input_dev);
 	}
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 134/149] platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls

[Sasha Levin]

From: Jorge Lopez <jorge.lopez2@hp.com>

[ Upstream commit be9d73e64957bbd31ee9a0d11adc0f720974c558 ]

Several WMI queries leverage hp_wmi_read_int function to read their
data. hp_wmi_read_int function was corrected in a previous patch.
Now, this function invokes hp_wmi_perform_query with input parameter
of size zero and the output buffer of size 4.

WMI commands calling hp_wmi_perform_query with input buffer size value
of zero are listed below.

HPWMI_DISPLAY_QUERY
HPWMI_HDDTEMP_QUERY
HPWMI_ALS_QUERY
HPWMI_HARDWARE_QUERY
HPWMI_WIRELESS_QUERY
HPWMI_BIOS_QUERY
HPWMI_FEATURE_QUERY
HPWMI_HOTKEY_QUERY
HPWMI_FEATURE2_QUERY
HPWMI_WIRELESS2_QUERY
HPWMI_POSTCODEERROR_QUERY
HPWMI_THERMAL_PROFILE_QUERY
HPWMI_FAN_SPEED_MAX_GET_QUERY

Invoking those WMI commands with an input buffer size greater
than zero will cause error 0x05 to be returned.

All WMI commands executed by the driver were reviewed and changes
were made to ensure the expected input and output buffer size match
the WMI specification.

Changes were validated on a HP ZBook Workstation notebook,
HP EliteBook x360, and HP EliteBook 850 G8.  Additional
validation was included in the test process to ensure no other
commands were incorrectly handled.

Signed-off-by: Jorge Lopez <jorge.lopez2@hp.com>
Link: https://lore.kernel.org/r/20220310210853.28367-4-jorge.lopez2@hp.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/hp-wmi.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index f822ef6eb93c..88f0bfd6ecf1 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -330,7 +330,7 @@ static int hp_wmi_get_fan_speed(int fan)
 	char fan_data[4] = { fan, 0, 0, 0 };
 
 	int ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_GET_QUERY, HPWMI_GM,
-				       &fan_data, sizeof(fan_data),
+				       &fan_data, sizeof(char),
 				       sizeof(fan_data));
 
 	if (ret != 0)
@@ -399,7 +399,7 @@ static int omen_thermal_profile_set(int mode)
 		return -EINVAL;
 
 	ret = hp_wmi_perform_query(HPWMI_SET_PERFORMANCE_MODE, HPWMI_GM,
-				   &buffer, sizeof(buffer), sizeof(buffer));
+				   &buffer, sizeof(buffer), 0);
 
 	if (ret)
 		return ret < 0 ? ret : -EINVAL;
@@ -436,7 +436,7 @@ static int hp_wmi_fan_speed_max_set(int enabled)
 	int ret;
 
 	ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_SET_QUERY, HPWMI_GM,
-				   &enabled, sizeof(enabled), sizeof(enabled));
+				   &enabled, sizeof(enabled), 0);
 
 	if (ret)
 		return ret < 0 ? ret : -EINVAL;
@@ -449,7 +449,7 @@ static int hp_wmi_fan_speed_max_get(void)
 	int val = 0, ret;
 
 	ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_GET_QUERY, HPWMI_GM,
-				   &val, sizeof(val), sizeof(val));
+				   &val, 0, sizeof(val));
 
 	if (ret)
 		return ret < 0 ? ret : -EINVAL;
@@ -461,7 +461,7 @@ static int __init hp_wmi_bios_2008_later(void)
 {
 	int state = 0;
 	int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state,
-				       sizeof(state), sizeof(state));
+				       0, sizeof(state));
 	if (!ret)
 		return 1;
 
@@ -472,7 +472,7 @@ static int __init hp_wmi_bios_2009_later(void)
 {
 	u8 state[128];
 	int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state,
-				       sizeof(state), sizeof(state));
+				       0, sizeof(state));
 	if (!ret)
 		return 1;
 
@@ -550,7 +550,7 @@ static int hp_wmi_rfkill2_refresh(void)
 	int err, i;
 
 	err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
-				   sizeof(state), sizeof(state));
+				   0, sizeof(state));
 	if (err)
 		return err;
 
@@ -639,7 +639,7 @@ static ssize_t als_store(struct device *dev, struct device_attribute *attr,
 		return ret;
 
 	ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp,
-				       sizeof(tmp), sizeof(tmp));
+				       sizeof(tmp), 0);
 	if (ret)
 		return ret < 0 ? ret : -EINVAL;
 
@@ -660,9 +660,9 @@ static ssize_t postcode_store(struct device *dev, struct device_attribute *attr,
 	if (clear == false)
 		return -EINVAL;
 
-	/* Clear the POST error code. It is kept until until cleared. */
+	/* Clear the POST error code. It is kept until cleared. */
 	ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp,
-				       sizeof(tmp), sizeof(tmp));
+				       sizeof(tmp), 0);
 	if (ret)
 		return ret < 0 ? ret : -EINVAL;
 
@@ -952,7 +952,7 @@ static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
 	int err, i;
 
 	err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
-				   sizeof(state), sizeof(state));
+				   0, sizeof(state));
 	if (err)
 		return err < 0 ? err : -EINVAL;
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 135/149] net: sfp: add 2500base-X quirk for Lantech SFP module

[Sasha Levin]

From: Michael Walle <michael@walle.cc>

[ Upstream commit 00eec9fe4f3b9588b4bfa8ef9dd0aae96407d5d7 ]

The Lantech 8330-262D-E module is 2500base-X capable, but it reports the
nominal bitrate as 2500MBd instead of 3125MBd. Add a quirk for the
module.

The following in an EEPROM dump of such a SFP with the serial number
redacted:

00: 03 04 07 00 00 00 01 20 40 0c 05 01 19 00 00 00    ???...? @????...
10: 1e 0f 00 00 4c 61 6e 74 65 63 68 20 20 20 20 20    ??..Lantech
20: 20 20 20 20 00 00 00 00 38 33 33 30 2d 32 36 32        ....8330-262
30: 44 2d 45 20 20 20 20 20 56 31 2e 30 03 52 00 cb    D-E     V1.0?R.?
40: 00 1a 00 00 46 43 XX XX XX XX XX XX XX XX XX XX    .?..FCXXXXXXXXXX
50: 20 20 20 20 32 32 30 32 31 34 20 20 68 b0 01 98        220214  h???
60: 45 58 54 52 45 4d 45 4c 59 20 43 4f 4d 50 41 54    EXTREMELY COMPAT
70: 49 42 4c 45 20 20 20 20 20 20 20 20 20 20 20 20    IBLE

Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20220312205014.4154907-1-michael@walle.cc
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/sfp-bus.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c
index c1512c9925a6..15aa5ac1ff49 100644
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -74,6 +74,12 @@ static const struct sfp_quirk sfp_quirks[] = {
 		.vendor = "HUAWEI",
 		.part = "MA5671A",
 		.modes = sfp_quirk_2500basex,
+	}, {
+		// Lantech 8330-262D-E can operate at 2500base-X, but
+		// incorrectly report 2500MBd NRZ in their EEPROM
+		.vendor = "Lantech",
+		.part = "8330-262D-E",
+		.modes = sfp_quirk_2500basex,
 	}, {
 		.vendor = "UBNT",
 		.part = "UF-INSTANT",
-- 
2.34.1

[PATCH AUTOSEL 5.17 136/149] usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm

[Sasha Levin]

From: "H. Nikolaus Schaller" <hns@goldelico.com>

[ Upstream commit ac01df343e5a6c6bcead2ed421af1fde30f73e7e ]

Usually, the vbus_regulator (smps10 on omap5evm) boots up disabled.

Hence calling regulator_disable() indirectly through dwc3_omap_set_mailbox()
during probe leads to:

[   10.332764] WARNING: CPU: 0 PID: 1628 at drivers/regulator/core.c:2853 _regulator_disable+0x40/0x164
[   10.351919] unbalanced disables for smps10_out1
[   10.361298] Modules linked in: dwc3_omap(+) clk_twl6040 at24 gpio_twl6040 palmas_gpadc palmas_pwrbutton
industrialio snd_soc_omap_mcbsp(+) snd_soc_ti_sdma display_connector ti_tpd12s015 drm leds_gpio
drm_panel_orientation_quirks ip_tables x_tables ipv6 autofs4
[   10.387818] CPU: 0 PID: 1628 Comm: systemd-udevd Not tainted 5.17.0-rc1-letux-lpae+ #8139
[   10.405129] Hardware name: Generic OMAP5 (Flattened Device Tree)
[   10.411455]  unwind_backtrace from show_stack+0x10/0x14
[   10.416970]  show_stack from dump_stack_lvl+0x40/0x4c
[   10.422313]  dump_stack_lvl from __warn+0xb8/0x170
[   10.427377]  __warn from warn_slowpath_fmt+0x70/0x9c
[   10.432595]  warn_slowpath_fmt from _regulator_disable+0x40/0x164
[   10.439037]  _regulator_disable from regulator_disable+0x30/0x64
[   10.445382]  regulator_disable from dwc3_omap_set_mailbox+0x8c/0xf0 [dwc3_omap]
[   10.453116]  dwc3_omap_set_mailbox [dwc3_omap] from dwc3_omap_probe+0x2b8/0x394 [dwc3_omap]
[   10.467021]  dwc3_omap_probe [dwc3_omap] from platform_probe+0x58/0xa8
[   10.481762]  platform_probe from really_probe+0x168/0x2fc
[   10.481782]  really_probe from __driver_probe_device+0xc4/0xd8
[   10.481782]  __driver_probe_device from driver_probe_device+0x24/0xa4
[   10.503762]  driver_probe_device from __driver_attach+0xc4/0xd8
[   10.510018]  __driver_attach from bus_for_each_dev+0x64/0xa0
[   10.516001]  bus_for_each_dev from bus_add_driver+0x148/0x1a4
[   10.524880]  bus_add_driver from driver_register+0xb4/0xf8
[   10.530678]  driver_register from do_one_initcall+0x90/0x1c4
[   10.536661]  do_one_initcall from do_init_module+0x4c/0x200
[   10.536683]  do_init_module from load_module+0x13dc/0x1910
[   10.551159]  load_module from sys_finit_module+0xc8/0xd8
[   10.561319]  sys_finit_module from __sys_trace_return+0x0/0x18
[   10.561336] Exception stack(0xc344bfa8 to 0xc344bff0)
[   10.561341] bfa0:                   b6fb5778 b6fab8d8 00000007 b6ecfbb8 00000000 b6ed0398
[   10.561341] bfc0: b6fb5778 b6fab8d8 855c0500 0000017b 00020000 b6f9a3cc 00000000 b6fb5778
[   10.595500] bfe0: bede18f8 bede18e8 b6ec9aeb b6dda1c2
[   10.601345] ---[ end trace 0000000000000000 ]---

Fix this unnecessary warning by checking if the regulator is enabled.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/af3b750dc2265d875deaabcf5f80098c9645da45.1646744616.git.hns@goldelico.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/dwc3-omap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index e196673f5c64..efaf0db595f4 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -242,7 +242,7 @@ static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
 		break;
 
 	case OMAP_DWC3_ID_FLOAT:
-		if (omap->vbus_reg)
+		if (omap->vbus_reg && regulator_is_enabled(omap->vbus_reg))
 			regulator_disable(omap->vbus_reg);
 		val = dwc3_omap_read_utmi_ctrl(omap);
 		val |= USBOTGSS_UTMI_OTG_CTRL_IDDIG;
-- 
2.34.1

[PATCH AUTOSEL 5.17 137/149] xen/usb: harden xen_hcd against malicious backends

[Sasha Levin]

From: Juergen Gross <jgross@suse.com>

[ Upstream commit aff477cb8f94613f501d386d10f20019e294bc35 ]

Make sure a malicious backend can't cause any harm other than wrong
I/O data.

Missing are verification of the request id in a response, sanitizing
the reported actual I/O length, and protection against interrupt storms
from the backend.

Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20220311103509.12908-1-jgross@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/host/xen-hcd.c | 57 ++++++++++++++++++++++++++++----------
 1 file changed, 43 insertions(+), 14 deletions(-)

diff --git a/drivers/usb/host/xen-hcd.c b/drivers/usb/host/xen-hcd.c
index 19b8c7ed74cb..4ed3ee328a4a 100644
--- a/drivers/usb/host/xen-hcd.c
+++ b/drivers/usb/host/xen-hcd.c
@@ -51,6 +51,7 @@ struct vdevice_status {
 struct usb_shadow {
 	struct xenusb_urb_request req;
 	struct urb *urb;
+	bool in_flight;
 };
 
 struct xenhcd_info {
@@ -722,6 +723,12 @@ static void xenhcd_gnttab_done(struct xenhcd_info *info, unsigned int id)
 	int nr_segs = 0;
 	int i;
 
+	if (!shadow->in_flight) {
+		xenhcd_set_error(info, "Illegal request id");
+		return;
+	}
+	shadow->in_flight = false;
+
 	nr_segs = shadow->req.nr_buffer_segs;
 
 	if (xenusb_pipeisoc(shadow->req.pipe))
@@ -805,6 +812,7 @@ static int xenhcd_do_request(struct xenhcd_info *info, struct urb_priv *urbp)
 
 	info->urb_ring.req_prod_pvt++;
 	info->shadow[id].urb = urb;
+	info->shadow[id].in_flight = true;
 
 	RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&info->urb_ring, notify);
 	if (notify)
@@ -933,10 +941,27 @@ static int xenhcd_unlink_urb(struct xenhcd_info *info, struct urb_priv *urbp)
 	return ret;
 }
 
-static int xenhcd_urb_request_done(struct xenhcd_info *info)
+static void xenhcd_res_to_urb(struct xenhcd_info *info,
+			      struct xenusb_urb_response *res, struct urb *urb)
+{
+	if (unlikely(!urb))
+		return;
+
+	if (res->actual_length > urb->transfer_buffer_length)
+		urb->actual_length = urb->transfer_buffer_length;
+	else if (res->actual_length < 0)
+		urb->actual_length = 0;
+	else
+		urb->actual_length = res->actual_length;
+	urb->error_count = res->error_count;
+	urb->start_frame = res->start_frame;
+	xenhcd_giveback_urb(info, urb, res->status);
+}
+
+static int xenhcd_urb_request_done(struct xenhcd_info *info,
+				   unsigned int *eoiflag)
 {
 	struct xenusb_urb_response res;
-	struct urb *urb;
 	RING_IDX i, rp;
 	__u16 id;
 	int more_to_do = 0;
@@ -963,16 +988,12 @@ static int xenhcd_urb_request_done(struct xenhcd_info *info)
 			xenhcd_gnttab_done(info, id);
 			if (info->error)
 				goto err;
-			urb = info->shadow[id].urb;
-			if (likely(urb)) {
-				urb->actual_length = res.actual_length;
-				urb->error_count = res.error_count;
-				urb->start_frame = res.start_frame;
-				xenhcd_giveback_urb(info, urb, res.status);
-			}
+			xenhcd_res_to_urb(info, &res, info->shadow[id].urb);
 		}
 
 		xenhcd_add_id_to_freelist(info, id);
+
+		*eoiflag = 0;
 	}
 	info->urb_ring.rsp_cons = i;
 
@@ -990,7 +1011,7 @@ static int xenhcd_urb_request_done(struct xenhcd_info *info)
 	return 0;
 }
 
-static int xenhcd_conn_notify(struct xenhcd_info *info)
+static int xenhcd_conn_notify(struct xenhcd_info *info, unsigned int *eoiflag)
 {
 	struct xenusb_conn_response res;
 	struct xenusb_conn_request *req;
@@ -1035,6 +1056,8 @@ static int xenhcd_conn_notify(struct xenhcd_info *info)
 				       info->conn_ring.req_prod_pvt);
 		req->id = id;
 		info->conn_ring.req_prod_pvt++;
+
+		*eoiflag = 0;
 	}
 
 	if (rc != info->conn_ring.req_prod_pvt)
@@ -1057,14 +1080,19 @@ static int xenhcd_conn_notify(struct xenhcd_info *info)
 static irqreturn_t xenhcd_int(int irq, void *dev_id)
 {
 	struct xenhcd_info *info = (struct xenhcd_info *)dev_id;
+	unsigned int eoiflag = XEN_EOI_FLAG_SPURIOUS;
 
-	if (unlikely(info->error))
+	if (unlikely(info->error)) {
+		xen_irq_lateeoi(irq, XEN_EOI_FLAG_SPURIOUS);
 		return IRQ_HANDLED;
+	}
 
-	while (xenhcd_urb_request_done(info) | xenhcd_conn_notify(info))
+	while (xenhcd_urb_request_done(info, &eoiflag) |
+	       xenhcd_conn_notify(info, &eoiflag))
 		/* Yield point for this unbounded loop. */
 		cond_resched();
 
+	xen_irq_lateeoi(irq, eoiflag);
 	return IRQ_HANDLED;
 }
 
@@ -1141,9 +1169,9 @@ static int xenhcd_setup_rings(struct xenbus_device *dev,
 		goto fail;
 	}
 
-	err = bind_evtchn_to_irq(info->evtchn);
+	err = bind_evtchn_to_irq_lateeoi(info->evtchn);
 	if (err <= 0) {
-		xenbus_dev_fatal(dev, err, "bind_evtchn_to_irq");
+		xenbus_dev_fatal(dev, err, "bind_evtchn_to_irq_lateeoi");
 		goto fail;
 	}
 
@@ -1496,6 +1524,7 @@ static struct usb_hcd *xenhcd_create_hcd(struct xenbus_device *dev)
 	for (i = 0; i < XENUSB_URB_RING_SIZE; i++) {
 		info->shadow[i].req.id = i + 1;
 		info->shadow[i].urb = NULL;
+		info->shadow[i].in_flight = false;
 	}
 	info->shadow[XENUSB_URB_RING_SIZE - 1].req.id = 0x0fff;
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 138/149] mt76: fix monitor mode crash with sdio driver

[Sasha Levin]

From: Deren Wu <deren.wu@mediatek.com>

[ Upstream commit 123bc712b1de0805f9d683687e17b1ec2aba0b68 ]

mt7921s driver may receive frames with fragment buffers. If there is a
CTS packet received in monitor mode, the payload is 10 bytes only and
need 6 bytes header padding after RXD buffer. However, only RXD in the
first linear buffer, if we pull buffer size RXD-size+6 bytes with
skb_pull(), that would trigger "BUG_ON(skb->len < skb->data_len)" in
__skb_pull().

To avoid the nonlinear buffer issue, enlarge the RXD size from 128 to
256 to make sure all MCU operation in linear buffer.

[   52.007562] kernel BUG at include/linux/skbuff.h:2313!
[   52.007578] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[   52.007987] pc : skb_pull+0x48/0x4c
[   52.008015] lr : mt7921_queue_rx_skb+0x494/0x890 [mt7921_common]
[   52.008361] Call trace:
[   52.008377]  skb_pull+0x48/0x4c
[   52.008400]  mt76s_net_worker+0x134/0x1b0 [mt76_sdio 35339a92c6eb7d4bbcc806a1d22f56365565135c]
[   52.008431]  __mt76_worker_fn+0xe8/0x170 [mt76 ef716597d11a77150bc07e3fdd68eeb0f9b56917]
[   52.008449]  kthread+0x148/0x3ac
[   52.008466]  ret_from_fork+0x10/0x30

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt76.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 404c3d1a70d6..368a5c6455b1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -19,7 +19,7 @@
 
 #define MT_MCU_RING_SIZE	32
 #define MT_RX_BUF_SIZE		2048
-#define MT_SKB_HEAD_LEN		128
+#define MT_SKB_HEAD_LEN		256
 
 #define MT_MAX_NON_AQL_PKT	16
 #define MT_TXQ_FREE_THR		32
-- 
2.34.1

[PATCH AUTOSEL 5.17 139/149] xtensa: fix DTC warning unit_address_format

[Sasha Levin]

From: Max Filippov <jcmvbkbc@gmail.com>

[ Upstream commit e85d29ba4b24f68e7a78cb85c55e754362eeb2de ]

DTC issues the following warnings when building xtfpga device trees:

 /soc/flash@00000000/partition@0x0: unit name should not have leading "0x"
 /soc/flash@00000000/partition@0x6000000: unit name should not have leading "0x"
 /soc/flash@00000000/partition@0x6800000: unit name should not have leading "0x"
 /soc/flash@00000000/partition@0x7fe0000: unit name should not have leading "0x"

Drop leading 0x from flash partition unit names.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi | 8 ++++----
 arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi  | 8 ++++----
 arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi   | 4 ++--
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi
index 9bf8bad1dd18..c33932568aa7 100644
--- a/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi
@@ -8,19 +8,19 @@ flash: flash@00000000 {
 			reg = <0x00000000 0x08000000>;
 			bank-width = <2>;
 			device-width = <2>;
-			partition@0x0 {
+			partition@0 {
 				label = "data";
 				reg = <0x00000000 0x06000000>;
 			};
-			partition@0x6000000 {
+			partition@6000000 {
 				label = "boot loader area";
 				reg = <0x06000000 0x00800000>;
 			};
-			partition@0x6800000 {
+			partition@6800000 {
 				label = "kernel image";
 				reg = <0x06800000 0x017e0000>;
 			};
-			partition@0x7fe0000 {
+			partition@7fe0000 {
 				label = "boot environment";
 				reg = <0x07fe0000 0x00020000>;
 			};
diff --git a/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi
index 40c2f81f7cb6..7bde2ab2d6fb 100644
--- a/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi
@@ -8,19 +8,19 @@ flash: flash@08000000 {
 			reg = <0x08000000 0x01000000>;
 			bank-width = <2>;
 			device-width = <2>;
-			partition@0x0 {
+			partition@0 {
 				label = "boot loader area";
 				reg = <0x00000000 0x00400000>;
 			};
-			partition@0x400000 {
+			partition@400000 {
 				label = "kernel image";
 				reg = <0x00400000 0x00600000>;
 			};
-			partition@0xa00000 {
+			partition@a00000 {
 				label = "data";
 				reg = <0x00a00000 0x005e0000>;
 			};
-			partition@0xfe0000 {
+			partition@fe0000 {
 				label = "boot environment";
 				reg = <0x00fe0000 0x00020000>;
 			};
diff --git a/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi
index fb8d3a9f33c2..0655b868749a 100644
--- a/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi
@@ -8,11 +8,11 @@ flash: flash@08000000 {
 			reg = <0x08000000 0x00400000>;
 			bank-width = <2>;
 			device-width = <2>;
-			partition@0x0 {
+			partition@0 {
 				label = "boot loader area";
 				reg = <0x00000000 0x003f0000>;
 			};
-			partition@0x3f0000 {
+			partition@3f0000 {
 				label = "boot environment";
 				reg = <0x003f0000 0x00010000>;
 			};
-- 
2.34.1

[PATCH AUTOSEL 5.17 140/149] iwlwifi: mei: fix building iwlmei

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 066291bec0c55315e568ead501bebdefcb8453d2 ]

Building iwlmei without CONFIG_CFG80211 causes a link-time warning:

ld.lld: error: undefined symbol: ieee80211_hdrlen
>>> referenced by net.c
>>>               net/wireless/intel/iwlwifi/mei/net.o:(iwl_mei_tx_copy_to_csme) in archive drivers/built-in.a

Add an explicit dependency to avoid this. In theory it should not
be needed here, but it also seems pointless to allow IWLMEI
for configurations without CFG80211.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Emmanuel Grumbach <Emmanuel.grumbach@intel.com>
Acked-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220316183617.1470631-1-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/Kconfig b/drivers/net/wireless/intel/iwlwifi/Kconfig
index 85e704283755..a647a406b87b 100644
--- a/drivers/net/wireless/intel/iwlwifi/Kconfig
+++ b/drivers/net/wireless/intel/iwlwifi/Kconfig
@@ -139,6 +139,7 @@ config IWLMEI
 	tristate "Intel Management Engine communication over WLAN"
 	depends on INTEL_MEI
 	depends on PM
+	depends on CFG80211
 	help
 	  Enables the iwlmei kernel module.
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 141/149] MIPS: ingenic: correct unit node address

[Sasha Levin]

From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

[ Upstream commit 8931ddd8d6a55fcefb20f44a38ba42bb746f0b62 ]

Unit node addresses should not have leading 0x:

  Warning (unit_address_format): /nemc@13410000/efuse@d0/eth-mac-addr@0x22: unit name should not have leading "0x"

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/boot/dts/ingenic/jz4780.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi
index 3f9ea47a10cd..b998301f179c 100644
--- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
@@ -510,7 +510,7 @@ efuse: efuse@d0 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 
-			eth0_addr: eth-mac-addr@0x22 {
+			eth0_addr: eth-mac-addr@22 {
 				reg = <0x22 0x6>;
 			};
 		};
-- 
2.34.1

[PATCH AUTOSEL 5.17 142/149] Bluetooth: Fix use after free in hci_send_acl

[Sasha Levin]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

[ Upstream commit f63d24baff787e13b723d86fe036f84bdbc35045 ]

This fixes the following trace caused by receiving
HCI_EV_DISCONN_PHY_LINK_COMPLETE which does call hci_conn_del without
first checking if conn->type is in fact AMP_LINK and in case it is
do properly cleanup upper layers with hci_disconn_cfm:

 ==================================================================
    BUG: KASAN: use-after-free in hci_send_acl+0xaba/0xc50
    Read of size 8 at addr ffff88800e404818 by task bluetoothd/142

    CPU: 0 PID: 142 Comm: bluetoothd Not tainted
    5.17.0-rc5-00006-gda4022eeac1a #7
    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
    rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
    Call Trace:
     <TASK>
     dump_stack_lvl+0x45/0x59
     print_address_description.constprop.0+0x1f/0x150
     kasan_report.cold+0x7f/0x11b
     hci_send_acl+0xaba/0xc50
     l2cap_do_send+0x23f/0x3d0
     l2cap_chan_send+0xc06/0x2cc0
     l2cap_sock_sendmsg+0x201/0x2b0
     sock_sendmsg+0xdc/0x110
     sock_write_iter+0x20f/0x370
     do_iter_readv_writev+0x343/0x690
     do_iter_write+0x132/0x640
     vfs_writev+0x198/0x570
     do_writev+0x202/0x280
     do_syscall_64+0x38/0x90
     entry_SYSCALL_64_after_hwframe+0x44/0xae
    RSP: 002b:00007ffce8a099b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
    Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3
    0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 14 00 00 00 0f 05
    <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
    RDX: 0000000000000001 RSI: 00007ffce8a099e0 RDI: 0000000000000015
    RAX: ffffffffffffffda RBX: 00007ffce8a099e0 RCX: 00007f788fc3cf77
    R10: 00007ffce8af7080 R11: 0000000000000246 R12: 000055e4ccf75580
    RBP: 0000000000000015 R08: 0000000000000002 R09: 0000000000000001
    </TASK>
    R13: 000055e4ccf754a0 R14: 000055e4ccf75cd0 R15: 000055e4ccf4a6b0

    Allocated by task 45:
        kasan_save_stack+0x1e/0x40
        __kasan_kmalloc+0x81/0xa0
        hci_chan_create+0x9a/0x2f0
        l2cap_conn_add.part.0+0x1a/0xdc0
        l2cap_connect_cfm+0x236/0x1000
        le_conn_complete_evt+0x15a7/0x1db0
        hci_le_conn_complete_evt+0x226/0x2c0
        hci_le_meta_evt+0x247/0x450
        hci_event_packet+0x61b/0xe90
        hci_rx_work+0x4d5/0xc50
        process_one_work+0x8fb/0x15a0
        worker_thread+0x576/0x1240
        kthread+0x29d/0x340
        ret_from_fork+0x1f/0x30

    Freed by task 45:
        kasan_save_stack+0x1e/0x40
        kasan_set_track+0x21/0x30
        kasan_set_free_info+0x20/0x30
        __kasan_slab_free+0xfb/0x130
        kfree+0xac/0x350
        hci_conn_cleanup+0x101/0x6a0
        hci_conn_del+0x27e/0x6c0
        hci_disconn_phylink_complete_evt+0xe0/0x120
        hci_event_packet+0x812/0xe90
        hci_rx_work+0x4d5/0xc50
        process_one_work+0x8fb/0x15a0
        worker_thread+0x576/0x1240
        kthread+0x29d/0x340
        ret_from_fork+0x1f/0x30

    The buggy address belongs to the object at ffff88800c0f0500
    The buggy address is located 24 bytes inside of
    which belongs to the cache kmalloc-128 of size 128
    The buggy address belongs to the page:
    128-byte region [ffff88800c0f0500, ffff88800c0f0580)
    flags: 0x100000000000200(slab|node=0|zone=1)
    page:00000000fe45cd86 refcount:1 mapcount:0
    mapping:0000000000000000 index:0x0 pfn:0xc0f0
    raw: 0000000000000000 0000000080100010 00000001ffffffff
    0000000000000000
    raw: 0100000000000200 ffffea00003a2c80 dead000000000004
    ffff8880078418c0
    page dumped because: kasan: bad access detected
    ffff88800c0f0400: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc
    Memory state around the buggy address:
    >ffff88800c0f0500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
    ffff88800c0f0480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
    ffff88800c0f0580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                ^
    ==================================================================
    ffff88800c0f0600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Reported-by: Sönke Huster <soenke.huster@eknoes.de>
Tested-by: Sönke Huster <soenke.huster@eknoes.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_event.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 4d45fd4b8ccd..efed879c3e30 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5453,8 +5453,9 @@ static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
 	hci_dev_lock(hdev);
 
 	hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
-	if (hcon) {
+	if (hcon && hcon->type == AMP_LINK) {
 		hcon->state = BT_CLOSED;
+		hci_disconn_cfm(hcon, ev->reason);
 		hci_conn_del(hcon);
 	}
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 143/149] netfilter: conntrack: revisit gc autotuning

[Sasha Levin]

From: Florian Westphal <fw@strlen.de>

[ Upstream commit 2cfadb761d3d0219412fd8150faea60c7e863833 ]

as of commit 4608fdfc07e1
("netfilter: conntrack: collect all entries in one cycle")
conntrack gc was changed to run every 2 minutes.

On systems where conntrack hash table is set to large value, most evictions
happen from gc worker rather than the packet path due to hash table
distribution.

This causes netlink event overflows when events are collected.

This change collects average expiry of scanned entries and
reschedules to the average remaining value, within 1 to 60 second interval.

To avoid event overflows, reschedule after each bucket and add a
limit for both run time and number of evictions per run.

If more entries have to be evicted, reschedule and restart 1 jiffy
into the future.

Reported-by: Karel Rericha <karel@maxtel.cz>
Cc: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Cc: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_conntrack_core.c | 85 ++++++++++++++++++++++++-------
 1 file changed, 68 insertions(+), 17 deletions(-)

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index bf1e17c678f1..7552e1e9fd62 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -67,6 +67,8 @@ EXPORT_SYMBOL_GPL(nf_conntrack_hash);
 struct conntrack_gc_work {
 	struct delayed_work	dwork;
 	u32			next_bucket;
+	u32			avg_timeout;
+	u32			start_time;
 	bool			exiting;
 	bool			early_drop;
 };
@@ -78,8 +80,19 @@ static __read_mostly bool nf_conntrack_locks_all;
 /* serialize hash resizes and nf_ct_iterate_cleanup */
 static DEFINE_MUTEX(nf_conntrack_mutex);
 
-#define GC_SCAN_INTERVAL	(120u * HZ)
+#define GC_SCAN_INTERVAL_MAX	(60ul * HZ)
+#define GC_SCAN_INTERVAL_MIN	(1ul * HZ)
+
+/* clamp timeouts to this value (TCP unacked) */
+#define GC_SCAN_INTERVAL_CLAMP	(300ul * HZ)
+
+/* large initial bias so that we don't scan often just because we have
+ * three entries with a 1s timeout.
+ */
+#define GC_SCAN_INTERVAL_INIT	INT_MAX
+
 #define GC_SCAN_MAX_DURATION	msecs_to_jiffies(10)
+#define GC_SCAN_EXPIRED_MAX	(64000u / HZ)
 
 #define MIN_CHAINLEN	8u
 #define MAX_CHAINLEN	(32u - MIN_CHAINLEN)
@@ -1421,16 +1434,28 @@ static bool gc_worker_can_early_drop(const struct nf_conn *ct)
 
 static void gc_worker(struct work_struct *work)
 {
-	unsigned long end_time = jiffies + GC_SCAN_MAX_DURATION;
 	unsigned int i, hashsz, nf_conntrack_max95 = 0;
-	unsigned long next_run = GC_SCAN_INTERVAL;
+	u32 end_time, start_time = nfct_time_stamp;
 	struct conntrack_gc_work *gc_work;
+	unsigned int expired_count = 0;
+	unsigned long next_run;
+	s32 delta_time;
+
 	gc_work = container_of(work, struct conntrack_gc_work, dwork.work);
 
 	i = gc_work->next_bucket;
 	if (gc_work->early_drop)
 		nf_conntrack_max95 = nf_conntrack_max / 100u * 95u;
 
+	if (i == 0) {
+		gc_work->avg_timeout = GC_SCAN_INTERVAL_INIT;
+		gc_work->start_time = start_time;
+	}
+
+	next_run = gc_work->avg_timeout;
+
+	end_time = start_time + GC_SCAN_MAX_DURATION;
+
 	do {
 		struct nf_conntrack_tuple_hash *h;
 		struct hlist_nulls_head *ct_hash;
@@ -1447,6 +1472,7 @@ static void gc_worker(struct work_struct *work)
 
 		hlist_nulls_for_each_entry_rcu(h, n, &ct_hash[i], hnnode) {
 			struct nf_conntrack_net *cnet;
+			unsigned long expires;
 			struct net *net;
 
 			tmp = nf_ct_tuplehash_to_ctrack(h);
@@ -1456,11 +1482,29 @@ static void gc_worker(struct work_struct *work)
 				continue;
 			}
 
+			if (expired_count > GC_SCAN_EXPIRED_MAX) {
+				rcu_read_unlock();
+
+				gc_work->next_bucket = i;
+				gc_work->avg_timeout = next_run;
+
+				delta_time = nfct_time_stamp - gc_work->start_time;
+
+				/* re-sched immediately if total cycle time is exceeded */
+				next_run = delta_time < (s32)GC_SCAN_INTERVAL_MAX;
+				goto early_exit;
+			}
+
 			if (nf_ct_is_expired(tmp)) {
 				nf_ct_gc_expired(tmp);
+				expired_count++;
 				continue;
 			}
 
+			expires = clamp(nf_ct_expires(tmp), GC_SCAN_INTERVAL_MIN, GC_SCAN_INTERVAL_CLAMP);
+			next_run += expires;
+			next_run /= 2u;
+
 			if (nf_conntrack_max95 == 0 || gc_worker_skip_ct(tmp))
 				continue;
 
@@ -1478,8 +1522,10 @@ static void gc_worker(struct work_struct *work)
 				continue;
 			}
 
-			if (gc_worker_can_early_drop(tmp))
+			if (gc_worker_can_early_drop(tmp)) {
 				nf_ct_kill(tmp);
+				expired_count++;
+			}
 
 			nf_ct_put(tmp);
 		}
@@ -1492,33 +1538,38 @@ static void gc_worker(struct work_struct *work)
 		cond_resched();
 		i++;
 
-		if (time_after(jiffies, end_time) && i < hashsz) {
+		delta_time = nfct_time_stamp - end_time;
+		if (delta_time > 0 && i < hashsz) {
+			gc_work->avg_timeout = next_run;
 			gc_work->next_bucket = i;
 			next_run = 0;
-			break;
+			goto early_exit;
 		}
 	} while (i < hashsz);
 
+	gc_work->next_bucket = 0;
+
+	next_run = clamp(next_run, GC_SCAN_INTERVAL_MIN, GC_SCAN_INTERVAL_MAX);
+
+	delta_time = max_t(s32, nfct_time_stamp - gc_work->start_time, 1);
+	if (next_run > (unsigned long)delta_time)
+		next_run -= delta_time;
+	else
+		next_run = 1;
+
+early_exit:
 	if (gc_work->exiting)
 		return;
 
-	/*
-	 * Eviction will normally happen from the packet path, and not
-	 * from this gc worker.
-	 *
-	 * This worker is only here to reap expired entries when system went
-	 * idle after a busy period.
-	 */
-	if (next_run) {
+	if (next_run)
 		gc_work->early_drop = false;
-		gc_work->next_bucket = 0;
-	}
+
 	queue_delayed_work(system_power_efficient_wq, &gc_work->dwork, next_run);
 }
 
 static void conntrack_gc_work_init(struct conntrack_gc_work *gc_work)
 {
-	INIT_DEFERRABLE_WORK(&gc_work->dwork, gc_worker);
+	INIT_DELAYED_WORK(&gc_work->dwork, gc_worker);
 	gc_work->exiting = false;
 }
 
-- 
2.34.1

[PATCH AUTOSEL 5.17 144/149] netlabel: fix out-of-bounds memory accesses

[Sasha Levin]

From: Wang Yufen <wangyufen@huawei.com>

[ Upstream commit f22881de730ebd472e15bcc2c0d1d46e36a87b9c ]

In calipso_map_cat_ntoh(), in the for loop, if the return value of
netlbl_bitmap_walk() is equal to (net_clen_bits - 1), when
netlbl_bitmap_walk() is called next time, out-of-bounds memory accesses
of bitmap[byte_offset] occurs.

The bug was found during fuzzing. The following is the fuzzing report
 BUG: KASAN: slab-out-of-bounds in netlbl_bitmap_walk+0x3c/0xd0
 Read of size 1 at addr ffffff8107bf6f70 by task err_OH/252

 CPU: 7 PID: 252 Comm: err_OH Not tainted 5.17.0-rc7+ #17
 Hardware name: linux,dummy-virt (DT)
 Call trace:
  dump_backtrace+0x21c/0x230
  show_stack+0x1c/0x60
  dump_stack_lvl+0x64/0x7c
  print_address_description.constprop.0+0x70/0x2d0
  __kasan_report+0x158/0x16c
  kasan_report+0x74/0x120
  __asan_load1+0x80/0xa0
  netlbl_bitmap_walk+0x3c/0xd0
  calipso_opt_getattr+0x1a8/0x230
  calipso_sock_getattr+0x218/0x340
  calipso_sock_getattr+0x44/0x60
  netlbl_sock_getattr+0x44/0x80
  selinux_netlbl_socket_setsockopt+0x138/0x170
  selinux_socket_setsockopt+0x4c/0x60
  security_socket_setsockopt+0x4c/0x90
  __sys_setsockopt+0xbc/0x2b0
  __arm64_sys_setsockopt+0x6c/0x84
  invoke_syscall+0x64/0x190
  el0_svc_common.constprop.0+0x88/0x200
  do_el0_svc+0x88/0xa0
  el0_svc+0x128/0x1b0
  el0t_64_sync_handler+0x9c/0x120
  el0t_64_sync+0x16c/0x170

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netlabel/netlabel_kapi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index beb0e573266d..54c083003947 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -885,6 +885,8 @@ int netlbl_bitmap_walk(const unsigned char *bitmap, u32 bitmap_len,
 	unsigned char bitmask;
 	unsigned char byte;
 
+	if (offset >= bitmap_len)
+		return -1;
 	byte_offset = offset / 8;
 	byte = bitmap[byte_offset];
 	bit_spot = offset;
-- 
2.34.1

[PATCH AUTOSEL 5.17 145/149] ceph: fix inode reference leakage in ceph_get_snapdir()

[Sasha Levin]

From: Xiubo Li <xiubli@redhat.com>

[ Upstream commit 322794d3355c33adcc4feace0045d85a8e4ed813 ]

The ceph_get_inode() will search for or insert a new inode into the
hash for the given vino, and return a reference to it. If new is
non-NULL, its reference is consumed.

We should release the reference when in error handing cases.

Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ceph/inode.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index ef4a980a7bf3..c092dce0485c 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -87,13 +87,13 @@ struct inode *ceph_get_snapdir(struct inode *parent)
 	if (!S_ISDIR(parent->i_mode)) {
 		pr_warn_once("bad snapdir parent type (mode=0%o)\n",
 			     parent->i_mode);
-		return ERR_PTR(-ENOTDIR);
+		goto err;
 	}
 
 	if (!(inode->i_state & I_NEW) && !S_ISDIR(inode->i_mode)) {
 		pr_warn_once("bad snapdir inode type (mode=0%o)\n",
 			     inode->i_mode);
-		return ERR_PTR(-ENOTDIR);
+		goto err;
 	}
 
 	inode->i_mode = parent->i_mode;
@@ -113,6 +113,12 @@ struct inode *ceph_get_snapdir(struct inode *parent)
 	}
 
 	return inode;
+err:
+	if ((inode->i_state & I_NEW))
+		discard_new_inode(inode);
+	else
+		iput(inode);
+	return ERR_PTR(-ENOTDIR);
 }
 
 const struct inode_operations ceph_file_iops = {
-- 
2.34.1

[PATCH AUTOSEL 5.17 146/149] ceph: fix memory leak in ceph_readdir when note_last_dentry returns error

[Sasha Levin]

From: Xiubo Li <xiubli@redhat.com>

[ Upstream commit f639d9867eea647005dc824e0e24f39ffc50d4e4 ]

Reset the last_readdir at the same time, and add a comment explaining
why we don't free last_readdir when dir_emit returns false.

Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ceph/dir.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 133dbd9338e7..d91fa53e12b3 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -478,8 +478,11 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx)
 					2 : (fpos_off(rde->offset) + 1);
 			err = note_last_dentry(dfi, rde->name, rde->name_len,
 					       next_offset);
-			if (err)
+			if (err) {
+				ceph_mdsc_put_request(dfi->last_readdir);
+				dfi->last_readdir = NULL;
 				return err;
+			}
 		} else if (req->r_reply_info.dir_end) {
 			dfi->next_offset = 2;
 			/* keep last name */
@@ -520,6 +523,12 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx)
 		if (!dir_emit(ctx, rde->name, rde->name_len,
 			      ceph_present_ino(inode->i_sb, le64_to_cpu(rde->inode.in->ino)),
 			      le32_to_cpu(rde->inode.in->mode) >> 12)) {
+			/*
+			 * NOTE: Here no need to put the 'dfi->last_readdir',
+			 * because when dir_emit stops us it's most likely
+			 * doesn't have enough memory, etc. So for next readdir
+			 * it will continue.
+			 */
 			dout("filldir stopping us...\n");
 			return 0;
 		}
-- 
2.34.1

[PATCH AUTOSEL 5.17 147/149] lib/Kconfig.debug: add ARCH dependency for FUNCTION_ALIGN option

[Sasha Levin]

From: Feng Tang <feng.tang@intel.com>

[ Upstream commit 1bf18da62106225dbc47aab41efee2aeb99caccd ]

0Day robots reported there is compiling issue for 'csky' ARCH when
CONFIG_DEBUG_FORCE_DATA_SECTION_ALIGNED is enabled [1]:

All errors (new ones prefixed by >>):

   {standard input}: Assembler messages:
>> {standard input}:2277: Error: pcrel offset for branch to .LS000B too far (0x3c)

Which was discussed in [2].  And as there is no solution for csky yet, add
some dependency for this config to limit it to several ARCHs which have no
compiling issue so far.

[1]. https://lore.kernel.org/lkml/202202271612.W32UJAj2-lkp@intel.com/
[2]. https://www.spinics.net/lists/linux-kbuild/msg30298.html

Link: https://lkml.kernel.org/r/20220304021100.GN4548@shbuild999.sh.intel.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Cc: Guo Ren <guoren@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/Kconfig.debug | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 14b89aa37c5c..440fd666c16d 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -416,7 +416,8 @@ config SECTION_MISMATCH_WARN_ONLY
 	  If unsure, say Y.
 
 config DEBUG_FORCE_FUNCTION_ALIGN_64B
-	bool "Force all function address 64B aligned" if EXPERT
+	bool "Force all function address 64B aligned"
+	depends on EXPERT && (X86_64 || ARM64 || PPC32 || PPC64 || ARC)
 	help
 	  There are cases that a commit from one domain changes the function
 	  address alignment of other domains, and cause magic performance
-- 
2.34.1

[PATCH AUTOSEL 5.17 148/149] init/main.c: return 1 from handled __setup() functions

[Sasha Levin]

From: Randy Dunlap <rdunlap@infradead.org>

[ Upstream commit f9a40b0890658330c83c95511f9d6b396610defc ]

initcall_blacklist() should return 1 to indicate that it handled its
cmdline arguments.

set_debug_rodata() should return 1 to indicate that it handled its
cmdline arguments.  Print a warning if the option string is invalid.

This prevents these strings from being added to the 'init' program's
environment as they are not init arguments/parameters.

Link: https://lkml.kernel.org/r/20220221050901.23985-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 init/main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/init/main.c b/init/main.c
index ada50f5a15e4..9a5097b2251a 100644
--- a/init/main.c
+++ b/init/main.c
@@ -1192,7 +1192,7 @@ static int __init initcall_blacklist(char *str)
 		}
 	} while (str_entry);
 
-	return 0;
+	return 1;
 }
 
 static bool __init_or_module initcall_blacklisted(initcall_t fn)
@@ -1454,7 +1454,9 @@ static noinline void __init kernel_init_freeable(void);
 bool rodata_enabled __ro_after_init = true;
 static int __init set_debug_rodata(char *str)
 {
-	return strtobool(str, &rodata_enabled);
+	if (strtobool(str, &rodata_enabled))
+		pr_warn("Invalid option string for rodata: '%s'\n", str);
+	return 1;
 }
 __setup("rodata=", set_debug_rodata);
 #endif
-- 
2.34.1

[PATCH AUTOSEL 5.17 149/149] minix: fix bug when opening a file with O_DIRECT

[Sasha Levin]

From: Qinghua Jin <qhjin.dev@gmail.com>

[ Upstream commit 9ce3c0d26c42d279b6c378a03cd6a61d828f19ca ]

Testcase:
1. create a minix file system and mount it
2. open a file on the file system with O_RDWR|O_CREAT|O_TRUNC|O_DIRECT
3. open fails with -EINVAL but leaves an empty file behind. All other
   open() failures don't leave the failed open files behind.

It is hard to check the direct_IO op before creating the inode.  Just as
ext4 and btrfs do, this patch will resolve the issue by allowing to
create the file with O_DIRECT but returning error when writing the file.

Link: https://lkml.kernel.org/r/20220107133626.413379-1-qhjin.dev@gmail.com
Signed-off-by: Qinghua Jin <qhjin.dev@gmail.com>
Reported-by: Colin Ian King <colin.king@intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/minix/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index a71f1cf894b9..d4bd94234ef7 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -447,7 +447,8 @@ static const struct address_space_operations minix_aops = {
 	.writepage = minix_writepage,
 	.write_begin = minix_write_begin,
 	.write_end = generic_write_end,
-	.bmap = minix_bmap
+	.bmap = minix_bmap,
+	.direct_IO = noop_direct_IO
 };
 
 static const struct inode_operations minix_symlink_inode_operations = {
-- 
2.34.1

Re: [PATCH AUTOSEL 5.17 001/149] drm: Add orientation quirk for GPD Win Max

[Anisse Astier]

Hi Sasha,

Le Fri, Apr 01, 2022 at 10:23:08AM -0400, Sasha Levin a écrit :
> From: Anisse Astier <anisse@astier.eu>
> 
> [ Upstream commit 0b464ca3e0dd3cec65f28bc6d396d82f19080f69 ]
> 
> Panel is 800x1280, but mounted on a laptop form factor, sideways.
> 
> Signed-off-by: Anisse Astier <anisse@astier.eu>
> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> Link: https://patchwork.freedesktop.org/patch/msgid/20211229222200.53128-3-anisse@astier.eu
> Signed-off-by: Sasha Levin <sashal@kernel.org>

I don't think this patch will be very useful, because it won't fix the
device's display orientation without the previous patch it came with,
titled "drm/i915/opregion: add support for mailbox #5 EDID"
(e35d8762b04f89f9f5a188d0c440d3a2c1d010ed); while I'd like both to be
added, I'd prefer if we waited a few more weeks to make sure it does not
cause regressions.

My advice is to drop this patch from all stable kernels for now.

Regards,

Anisse

Re: [PATCH AUTOSEL 5.17 001/149] drm: Add orientation quirk for GPD Win Max

[Hans de Goede]

Hi,

On 4/1/22 22:33, Anisse Astier wrote:
> Hi Sasha,
> 
> Le Fri, Apr 01, 2022 at 10:23:08AM -0400, Sasha Levin a écrit :
>> From: Anisse Astier <anisse@astier.eu>
>>
>> [ Upstream commit 0b464ca3e0dd3cec65f28bc6d396d82f19080f69 ]
>>
>> Panel is 800x1280, but mounted on a laptop form factor, sideways.
>>
>> Signed-off-by: Anisse Astier <anisse@astier.eu>
>> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
>> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
>> Link: https://patchwork.freedesktop.org/patch/msgid/20211229222200.53128-3-anisse@astier.eu
>> Signed-off-by: Sasha Levin <sashal@kernel.org>
> 
> I don't think this patch will be very useful, because it won't fix the
> device's display orientation without the previous patch it came with,
> titled "drm/i915/opregion: add support for mailbox #5 EDID"
> (e35d8762b04f89f9f5a188d0c440d3a2c1d010ed); while I'd like both to be
> added

Well actually it will already put e.g. the text console the right way up
since efifb also uses this quirks and gives a hint to fbcon to rotate
the text. So it is not entirely useless.

And since all quirks added to drivers/gpu/drm/drm_panel_orientation_quirks.c
typically get backported having this one in place now will avoid conflicts
with future backports.

That combined with not really seeing a downside to already having
this in place even without the i915 support being sorted out makes
me lean more towards the direction of believing that having this
in 5.17 is fine...

Regards,

Hans

Re: [PATCH AUTOSEL 5.17 001/149] drm: Add orientation quirk for GPD Win Max

[Anisse Astier]

Le Sat, Apr 02, 2022 at 11:14:58AM +0200, Hans de Goede a écrit :
> Hi,
> 
> On 4/1/22 22:33, Anisse Astier wrote:
> > Hi Sasha,
> > 
> > Le Fri, Apr 01, 2022 at 10:23:08AM -0400, Sasha Levin a écrit :
> >> From: Anisse Astier <anisse@astier.eu>
> >>
> >> [ Upstream commit 0b464ca3e0dd3cec65f28bc6d396d82f19080f69 ]
> >>
> >> Panel is 800x1280, but mounted on a laptop form factor, sideways.
> >>
> >> Signed-off-by: Anisse Astier <anisse@astier.eu>
> >> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
> >> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> >> Link: https://patchwork.freedesktop.org/patch/msgid/20211229222200.53128-3-anisse@astier.eu
> >> Signed-off-by: Sasha Levin <sashal@kernel.org>
> > 
> > I don't think this patch will be very useful, because it won't fix the
> > device's display orientation without the previous patch it came with,
> > titled "drm/i915/opregion: add support for mailbox #5 EDID"
> > (e35d8762b04f89f9f5a188d0c440d3a2c1d010ed); while I'd like both to be
> > added
> 
> Well actually it will already put e.g. the text console the right way up
> since efifb also uses this quirks and gives a hint to fbcon to rotate
> the text. So it is not entirely useless.
> 
> And since all quirks added to drivers/gpu/drm/drm_panel_orientation_quirks.c
> typically get backported having this one in place now will avoid conflicts
> with future backports.
> 
> That combined with not really seeing a downside to already having
> this in place even without the i915 support being sorted out makes
> me lean more towards the direction of believing that having this
> in 5.17 is fine...
> 

Good points; lets's keep it in the stable queues.

Thanks,

Anisse