[PATCH AUTOSEL 6.6 01/23] watchdog: it87_wdt: add PWRGD enable quirk for Qotom QCML04

[PATCH AUTOSEL 6.6 01/23] watchdog: it87_wdt: add PWRGD enable quirk for Qotom QCML04

[Sasha Levin]

From: James Hilliard <james.hilliard1@gmail.com>

[ Upstream commit 43439076383a7611300334d1357c0f8883f40816 ]

For the watchdog timer to work properly on the QCML04 board we need to
set PWRGD enable in the Environment Controller Configuration Registers
Special Configuration Register 1 when it is not already set, this may
be the case when the watchdog is not enabled from within the BIOS.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20241025063441.3494837-1-james.hilliard1@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/watchdog/it87_wdt.c | 39 +++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c
index 843f9f8e39177..239947df613db 100644
--- a/drivers/watchdog/it87_wdt.c
+++ b/drivers/watchdog/it87_wdt.c
@@ -20,6 +20,8 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/bits.h>
+#include <linux/dmi.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
@@ -40,6 +42,7 @@
 #define VAL		0x2f
 
 /* Logical device Numbers LDN */
+#define EC		0x04
 #define GPIO		0x07
 
 /* Configuration Registers and Functions */
@@ -71,6 +74,12 @@
 #define IT8784_ID	0x8784
 #define IT8786_ID	0x8786
 
+/* Environment Controller Configuration Registers LDN=0x04 */
+#define SCR1		0xfa
+
+/* Environment Controller Bits SCR1 */
+#define WDT_PWRGD	0x20
+
 /* GPIO Configuration Registers LDN=0x07 */
 #define WDTCTRL		0x71
 #define WDTCFG		0x72
@@ -233,6 +242,21 @@ static int wdt_set_timeout(struct watchdog_device *wdd, unsigned int t)
 	return ret;
 }
 
+enum {
+	IT87_WDT_OUTPUT_THROUGH_PWRGD	= BIT(0),
+};
+
+static const struct dmi_system_id it87_quirks[] = {
+	{
+		/* Qotom Q30900P (IT8786) */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "QCML04"),
+		},
+		.driver_data = (void *)IT87_WDT_OUTPUT_THROUGH_PWRGD,
+	},
+	{}
+};
+
 static const struct watchdog_info ident = {
 	.options = WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING,
 	.firmware_version = 1,
@@ -254,8 +278,10 @@ static struct watchdog_device wdt_dev = {
 
 static int __init it87_wdt_init(void)
 {
+	const struct dmi_system_id *dmi_id;
 	u8  chip_rev;
 	u8 ctrl;
+	int quirks = 0;
 	int rc;
 
 	rc = superio_enter();
@@ -266,6 +292,10 @@ static int __init it87_wdt_init(void)
 	chip_rev  = superio_inb(CHIPREV) & 0x0f;
 	superio_exit();
 
+	dmi_id = dmi_first_match(it87_quirks);
+	if (dmi_id)
+		quirks = (long)dmi_id->driver_data;
+
 	switch (chip_type) {
 	case IT8702_ID:
 		max_units = 255;
@@ -326,6 +356,15 @@ static int __init it87_wdt_init(void)
 		superio_outb(0x00, WDTCTRL);
 	}
 
+	if (quirks & IT87_WDT_OUTPUT_THROUGH_PWRGD) {
+		superio_select(EC);
+		ctrl = superio_inb(SCR1);
+		if (!(ctrl & WDT_PWRGD)) {
+			ctrl |= WDT_PWRGD;
+			superio_outb(ctrl, SCR1);
+		}
+	}
+
 	superio_exit();
 
 	if (timeout < 1 || timeout > max_units * 60) {
-- 
2.43.0

[PATCH AUTOSEL 6.6 02/23] watchdog: mediatek: Add support for MT6735 TOPRGU/WDT

[Sasha Levin]

From: Yassine Oudjana <y.oudjana@protonmail.com>

[ Upstream commit 15ddf704f56f8c95ff74dfd1157ed8646b322fa1 ]

Add support for the Top Reset Generation Unit/Watchdog Timer found on
MT6735.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20241106104738.195968-3-y.oudjana@protonmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/watchdog/mtk_wdt.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c
index b2330b16b497a..f8c90555d0b03 100644
--- a/drivers/watchdog/mtk_wdt.c
+++ b/drivers/watchdog/mtk_wdt.c
@@ -10,6 +10,7 @@
  */
 
 #include <dt-bindings/reset/mt2712-resets.h>
+#include <dt-bindings/reset/mediatek,mt6735-wdt.h>
 #include <dt-bindings/reset/mediatek,mt6795-resets.h>
 #include <dt-bindings/reset/mt7986-resets.h>
 #include <dt-bindings/reset/mt8183-resets.h>
@@ -81,6 +82,10 @@ static const struct mtk_wdt_data mt2712_data = {
 	.toprgu_sw_rst_num = MT2712_TOPRGU_SW_RST_NUM,
 };
 
+static const struct mtk_wdt_data mt6735_data = {
+	.toprgu_sw_rst_num = MT6735_TOPRGU_RST_NUM,
+};
+
 static const struct mtk_wdt_data mt6795_data = {
 	.toprgu_sw_rst_num = MT6795_TOPRGU_SW_RST_NUM,
 };
@@ -442,6 +447,7 @@ static int mtk_wdt_resume(struct device *dev)
 static const struct of_device_id mtk_wdt_dt_ids[] = {
 	{ .compatible = "mediatek,mt2712-wdt", .data = &mt2712_data },
 	{ .compatible = "mediatek,mt6589-wdt" },
+	{ .compatible = "mediatek,mt6735-wdt", .data = &mt6735_data },
 	{ .compatible = "mediatek,mt6795-wdt", .data = &mt6795_data },
 	{ .compatible = "mediatek,mt7986-wdt", .data = &mt7986_data },
 	{ .compatible = "mediatek,mt8183-wdt", .data = &mt8183_data },
-- 
2.43.0

[PATCH AUTOSEL 6.6 03/23] scsi: qla1280: Fix hw revision numbering for ISP1020/1040

[Sasha Levin]

From: Magnus Lindholm <linmag7@gmail.com>

[ Upstream commit c064de86d2a3909222d5996c5047f64c7a8f791b ]

Fix the hardware revision numbering for Qlogic ISP1020/1040 boards.  HWMASK
suggests that the revision number only needs four bits, this is consistent
with how NetBSD does things in their ISP driver. Verified on a IPS1040B
which is seen as rev 5 not as BIT_4.

Signed-off-by: Magnus Lindholm <linmag7@gmail.com>
Link: https://lore.kernel.org/r/20241113225636.2276-1-linmag7@gmail.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla1280.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/qla1280.h b/drivers/scsi/qla1280.h
index d309e2ca14deb..dea2290b37d4d 100644
--- a/drivers/scsi/qla1280.h
+++ b/drivers/scsi/qla1280.h
@@ -116,12 +116,12 @@ struct device_reg {
 	uint16_t id_h;		/* ID high */
 	uint16_t cfg_0;		/* Configuration 0 */
 #define ISP_CFG0_HWMSK   0x000f	/* Hardware revision mask */
-#define ISP_CFG0_1020    BIT_0	/* ISP1020 */
-#define ISP_CFG0_1020A	 BIT_1	/* ISP1020A */
-#define ISP_CFG0_1040	 BIT_2	/* ISP1040 */
-#define ISP_CFG0_1040A	 BIT_3	/* ISP1040A */
-#define ISP_CFG0_1040B	 BIT_4	/* ISP1040B */
-#define ISP_CFG0_1040C	 BIT_5	/* ISP1040C */
+#define ISP_CFG0_1020	 1	/* ISP1020 */
+#define ISP_CFG0_1020A	 2	/* ISP1020A */
+#define ISP_CFG0_1040	 3	/* ISP1040 */
+#define ISP_CFG0_1040A	 4	/* ISP1040A */
+#define ISP_CFG0_1040B	 5	/* ISP1040B */
+#define ISP_CFG0_1040C	 6	/* ISP1040C */
 	uint16_t cfg_1;		/* Configuration 1 */
 #define ISP_CFG1_F128    BIT_6  /* 128-byte FIFO threshold */
 #define ISP_CFG1_F64     BIT_4|BIT_5 /* 128-byte FIFO threshold */
-- 
2.43.0

[PATCH AUTOSEL 6.6 04/23] scsi: megaraid_sas: Fix for a potential deadlock

[Sasha Levin]

From: Tomas Henzl <thenzl@redhat.com>

[ Upstream commit 50740f4dc78b41dec7c8e39772619d5ba841ddd7 ]

This fixes a 'possible circular locking dependency detected' warning
      CPU0                    CPU1
      ----                    ----
 lock(&instance->reset_mutex);
                              lock(&shost->scan_mutex);
                              lock(&instance->reset_mutex);
 lock(&shost->scan_mutex);

Fix this by temporarily releasing the reset_mutex.

Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Link: https://lore.kernel.org/r/20240923174833.45345-1-thenzl@redhat.com
Acked-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/megaraid/megaraid_sas_base.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 3d4f13da1ae87..4cc93cb79b8b0 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -8904,8 +8904,11 @@ megasas_aen_polling(struct work_struct *work)
 						   (ld_target_id / MEGASAS_MAX_DEV_PER_CHANNEL),
 						   (ld_target_id % MEGASAS_MAX_DEV_PER_CHANNEL),
 						   0);
-			if (sdev1)
+			if (sdev1) {
+				mutex_unlock(&instance->reset_mutex);
 				megasas_remove_scsi_device(sdev1);
+				mutex_lock(&instance->reset_mutex);
+			}
 
 			event_type = SCAN_VD_CHANNEL;
 			break;
-- 
2.43.0

[PATCH AUTOSEL 6.6 05/23] udf: Skip parent dir link count update if corrupted

[Sasha Levin]

From: Jan Kara <jack@suse.cz>

[ Upstream commit c5566903af56dd1abb092f18dcb0c770d6cd8dcb ]

If the parent directory link count is too low (likely directory inode
corruption), just skip updating its link count as if it goes to 0 too
early it can cause unexpected issues.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/udf/namei.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 605f182da42cb..b3f57ad2b869f 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -521,7 +521,11 @@ static int udf_rmdir(struct inode *dir, struct dentry *dentry)
 			 inode->i_nlink);
 	clear_nlink(inode);
 	inode->i_size = 0;
-	inode_dec_link_count(dir);
+	if (dir->i_nlink >= 3)
+		inode_dec_link_count(dir);
+	else
+		udf_warn(inode->i_sb, "parent dir link count too low (%u)\n",
+			 dir->i_nlink);
 	udf_add_fid_counter(dir->i_sb, true, -1);
 	dir->i_mtime = inode_set_ctime_to_ts(dir,
 					     inode_set_ctime_current(inode));
-- 
2.43.0

[PATCH AUTOSEL 6.6 06/23] ALSA: hda/conexant: fix Z60MR100 startup pop issue

[Sasha Levin]

From: bo liu <bo.liu@senarytech.com>

[ Upstream commit 947c4012f8f03a8bb946beb6e5294d5e32817d67 ]

When Z60MR100 startup, speaker will output a pop. To fix this issue,
we mute codec by init verbs in bios when system startup, and set GPIO
to low to unmute codec in codec driver when it loaded .

[ white space fixes and compile warning fix by tiwai ]

Signed-off-by: bo liu <bo.liu@senarytech.com>
Link: https://patch.msgid.link/20241129014441.437205-1-bo.liu@senarytech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_conexant.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index a14b9cb48f69a..7edb029f08a36 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -311,6 +311,7 @@ enum {
 	CXT_FIXUP_HP_MIC_NO_PRESENCE,
 	CXT_PINCFG_SWS_JS201D,
 	CXT_PINCFG_TOP_SPEAKER,
+	CXT_FIXUP_HP_A_U,
 };
 
 /* for hda_fixup_thinkpad_acpi() */
@@ -778,6 +779,18 @@ static void cxt_setup_mute_led(struct hda_codec *codec,
 	}
 }
 
+static void cxt_setup_gpio_unmute(struct hda_codec *codec,
+				  unsigned int gpio_mute_mask)
+{
+	if (gpio_mute_mask) {
+		// set gpio data to 0.
+		snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DATA, 0);
+		snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_MASK, gpio_mute_mask);
+		snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DIRECTION, gpio_mute_mask);
+		snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_STICKY_MASK, 0);
+	}
+}
+
 static void cxt_fixup_mute_led_gpio(struct hda_codec *codec,
 				const struct hda_fixup *fix, int action)
 {
@@ -792,6 +805,15 @@ static void cxt_fixup_hp_zbook_mute_led(struct hda_codec *codec,
 		cxt_setup_mute_led(codec, 0x10, 0x20);
 }
 
+static void cxt_fixup_hp_a_u(struct hda_codec *codec,
+			     const struct hda_fixup *fix, int action)
+{
+	// Init vers in BIOS mute the spk/hp by set gpio high to avoid pop noise,
+	// so need to unmute once by clearing the gpio data when runs into the system.
+	if (action == HDA_FIXUP_ACT_INIT)
+		cxt_setup_gpio_unmute(codec, 0x2);
+}
+
 /* ThinkPad X200 & co with cxt5051 */
 static const struct hda_pintbl cxt_pincfg_lenovo_x200[] = {
 	{ 0x16, 0x042140ff }, /* HP (seq# overridden) */
@@ -1016,6 +1038,10 @@ static const struct hda_fixup cxt_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = cxt_fixup_sirius_top_speaker,
 	},
+	[CXT_FIXUP_HP_A_U] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cxt_fixup_hp_a_u,
+	},
 };
 
 static const struct snd_pci_quirk cxt5045_fixups[] = {
@@ -1090,6 +1116,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
 	SND_PCI_QUIRK(0x103c, 0x8457, "HP Z2 G4 mini", CXT_FIXUP_HP_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x8458, "HP Z2 G4 mini premium", CXT_FIXUP_HP_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1043, 0x138d, "Asus", CXT_FIXUP_HEADPHONE_MIC_PIN),
+	SND_PCI_QUIRK(0x14f1, 0x0252, "MBX-Z60MR100", CXT_FIXUP_HP_A_U),
 	SND_PCI_QUIRK(0x14f1, 0x0265, "SWS JS201D", CXT_PINCFG_SWS_JS201D),
 	SND_PCI_QUIRK(0x152d, 0x0833, "OLPC XO-1.5", CXT_FIXUP_OLPC_XO),
 	SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410),
@@ -1135,6 +1162,7 @@ static const struct hda_model_fixup cxt5066_fixup_models[] = {
 	{ .id = CXT_PINCFG_LENOVO_NOTEBOOK, .name = "lenovo-20149" },
 	{ .id = CXT_PINCFG_SWS_JS201D, .name = "sws-js201d" },
 	{ .id = CXT_PINCFG_TOP_SPEAKER, .name = "sirius-top-speaker" },
+	{ .id = CXT_FIXUP_HP_A_U, .name = "HP-U-support" },
 	{}
 };
 
-- 
2.43.0

[PATCH AUTOSEL 6.6 07/23] ALSA: sh: Use standard helper for buffer accesses

[Sasha Levin]

From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit 9b5f8ee43e48c25fbe1a10163ec04343d750acd0 ]

The SH DAC audio driver uses the kmalloc'ed buffer as the main PCM
buffer, and the data is transferred via hrtimer callbacks manually
from there to the hardware.  Meanwhile, some of its code are written
as if the buffer is on iomem and use the special helpers for the iomem
(e.g. copy_from_iter_toio() or memset_io()).  Those are rather useless
and the standard helpers should be used.

Similarly, the PCM mmap callback is set to a special one with
snd_pcm_lib_mmap_iomem, but this is also nonsense, because SH
architecture doesn't support this function, hence it leads just to
NULL -- the fallback to the standard helper.

This patch replaces those special setups with the standard ones.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202411281337.I4M07b7i-lkp@intel.com/
Link: https://patch.msgid.link/20241128104939.13755-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/sh/sh_dac_audio.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/sh/sh_dac_audio.c b/sound/sh/sh_dac_audio.c
index 95ba3abd4e47e..36a973d1c46df 100644
--- a/sound/sh/sh_dac_audio.c
+++ b/sound/sh/sh_dac_audio.c
@@ -163,7 +163,7 @@ static int snd_sh_dac_pcm_copy(struct snd_pcm_substream *substream,
 	/* channel is not used (interleaved data) */
 	struct snd_sh_dac *chip = snd_pcm_substream_chip(substream);
 
-	if (copy_from_iter_toio(chip->data_buffer + pos, src, count))
+	if (copy_from_iter(chip->data_buffer + pos, src, count) != count)
 		return -EFAULT;
 	chip->buffer_end = chip->data_buffer + pos + count;
 
@@ -182,7 +182,7 @@ static int snd_sh_dac_pcm_silence(struct snd_pcm_substream *substream,
 	/* channel is not used (interleaved data) */
 	struct snd_sh_dac *chip = snd_pcm_substream_chip(substream);
 
-	memset_io(chip->data_buffer + pos, 0, count);
+	memset(chip->data_buffer + pos, 0, count);
 	chip->buffer_end = chip->data_buffer + pos + count;
 
 	if (chip->empty) {
@@ -211,7 +211,6 @@ static const struct snd_pcm_ops snd_sh_dac_pcm_ops = {
 	.pointer	= snd_sh_dac_pcm_pointer,
 	.copy		= snd_sh_dac_pcm_copy,
 	.fill_silence	= snd_sh_dac_pcm_silence,
-	.mmap		= snd_pcm_lib_mmap_iomem,
 };
 
 static int snd_sh_dac_pcm(struct snd_sh_dac *chip, int device)
-- 
2.43.0

[PATCH AUTOSEL 6.6 08/23] smb: server: Fix building with GCC 15

[Sasha Levin]

From: Brahmajit Das <brahmajit.xyz@gmail.com>

[ Upstream commit e18655cf35a5958fbf4ae9ca3ebf28871a3a1801 ]

GCC 15 introduces -Werror=unterminated-string-initialization by default,
this results in the following build error

fs/smb/server/smb_common.c:21:35: error: initializer-string for array of 'char' is too long [-Werror=unterminated-string-ini
tialization]
   21 | static const char basechars[43] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_-!@#$%";
      |                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

To this we are replacing char basechars[43] with a character pointer
and then using strlen to get the length.

Signed-off-by: Brahmajit Das <brahmajit.xyz@gmail.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/smb/server/smb_common.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/smb/server/smb_common.c b/fs/smb/server/smb_common.c
index 663b014b9d188..23537e1b34685 100644
--- a/fs/smb/server/smb_common.c
+++ b/fs/smb/server/smb_common.c
@@ -18,8 +18,8 @@
 #include "mgmt/share_config.h"
 
 /*for shortname implementation */
-static const char basechars[43] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_-!@#$%";
-#define MANGLE_BASE (sizeof(basechars) / sizeof(char) - 1)
+static const char *basechars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_-!@#$%";
+#define MANGLE_BASE (strlen(basechars) - 1)
 #define MAGIC_CHAR '~'
 #define PERIOD '.'
 #define mangle(V) ((char)(basechars[(V) % MANGLE_BASE]))
-- 
2.43.0

[PATCH AUTOSEL 6.6 09/23] regmap: Use correct format specifier for logging range errors

[Sasha Levin]

From: Mark Brown <broonie@kernel.org>

[ Upstream commit 3f1aa0c533d9dd8a835caf9a6824449c463ee7e2 ]

The register addresses are unsigned ints so we should use %u not %d to
log them.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20241127-regmap-test-high-addr-v1-1-74a48a9e0dc5@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/regmap/regmap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index c5b5241891a5a..8c3a9922f35d3 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1050,13 +1050,13 @@ struct regmap *__regmap_init(struct device *dev,
 
 		/* Sanity check */
 		if (range_cfg->range_max < range_cfg->range_min) {
-			dev_err(map->dev, "Invalid range %d: %d < %d\n", i,
+			dev_err(map->dev, "Invalid range %d: %u < %u\n", i,
 				range_cfg->range_max, range_cfg->range_min);
 			goto err_range;
 		}
 
 		if (range_cfg->range_max > map->max_register) {
-			dev_err(map->dev, "Invalid range %d: %d > %d\n", i,
+			dev_err(map->dev, "Invalid range %d: %u > %u\n", i,
 				range_cfg->range_max, map->max_register);
 			goto err_range;
 		}
-- 
2.43.0

[PATCH AUTOSEL 6.6 10/23] LoongArch: Fix reserving screen info memory for above-4G firmware

[Sasha Levin]

From: Huacai Chen <chenhuacai@loongson.cn>

[ Upstream commit 55dc2f8f263448f1e6c7ef135d08e640d5a4826e ]

Since screen_info.lfb_base is a __u32 type, an above-4G address need an
ext_lfb_base to present its higher 32bits. In init_screen_info() we can
use __screen_info_lfb_base() to handle this case for reserving screen
info memory.

Signed-off-by: Xuefeng Zhao <zhaoxuefeng@loongson.cn>
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/loongarch/kernel/efi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c
index de4f3def4af0b..4ae77e9300d58 100644
--- a/arch/loongarch/kernel/efi.c
+++ b/arch/loongarch/kernel/efi.c
@@ -90,7 +90,7 @@ static void __init init_screen_info(void)
 	memset(si, 0, sizeof(*si));
 	early_memunmap(si, sizeof(*si));
 
-	memblock_reserve(screen_info.lfb_base, screen_info.lfb_size);
+	memblock_reserve(__screen_info_lfb_base(&screen_info), screen_info.lfb_size);
 }
 
 void __init efi_init(void)
-- 
2.43.0

[PATCH AUTOSEL 6.6 11/23] LoongArch/irq: Use seq_put_decimal_ull_width() for decimal values

[Sasha Levin]

From: David Wang <00107082@163.com>

[ Upstream commit ad2a05a6d287aef7e069c06e329f1355756415c2 ]

Performance improvement for reading /proc/interrupts on LoongArch.

On a system with n CPUs and m interrupts, there will be n*m decimal
values yielded via seq_printf(.."%10u "..) which is less efficient than
seq_put_decimal_ull_width(), stress reading /proc/interrupts indicates
~30% performance improvement with this patch (and its friends).

Signed-off-by: David Wang <00107082@163.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/loongarch/kernel/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c
index 9dbe7907a9612..a3e154978ac9d 100644
--- a/arch/loongarch/kernel/smp.c
+++ b/arch/loongarch/kernel/smp.c
@@ -83,7 +83,7 @@ void show_ipi_list(struct seq_file *p, int prec)
 	for (i = 0; i < NR_IPI; i++) {
 		seq_printf(p, "%*s%u:%s", prec - 1, "IPI", i, prec >= 4 ? " " : "");
 		for_each_online_cpu(cpu)
-			seq_printf(p, "%10u ", per_cpu(irq_stat, cpu).ipi_irqs[i]);
+			seq_put_decimal_ull_width(p, " ", per_cpu(irq_stat, cpu).ipi_irqs[i], 10);
 		seq_printf(p, " LoongArch  %d  %s\n", i + 1, ipi_types[i]);
 	}
 }
-- 
2.43.0

[PATCH AUTOSEL 6.6 12/23] LoongArch: BPF: Adjust the parameter of emit_jirl()

[Sasha Levin]

From: Tiezhu Yang <yangtiezhu@loongson.cn>

[ Upstream commit c1474bb0b7cff4e8481095bd0618b8f6c2f0aeb4 ]

The branch instructions beq, bne, blt, bge, bltu, bgeu and jirl belong
to the format reg2i16, but the sequence of oprand is different for the
instruction jirl. So adjust the parameter order of emit_jirl() to make
it more readable correspond with the Instruction Set Architecture manual.

Here are the instruction formats:

  beq     rj, rd, offs16
  bne     rj, rd, offs16
  blt     rj, rd, offs16
  bge     rj, rd, offs16
  bltu    rj, rd, offs16
  bgeu    rj, rd, offs16
  jirl    rd, rj, offs16

Link: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#branch-instructions
Suggested-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/loongarch/include/asm/inst.h | 12 +++++++++++-
 arch/loongarch/kernel/inst.c      |  2 +-
 arch/loongarch/net/bpf_jit.c      |  6 +++---
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/arch/loongarch/include/asm/inst.h b/arch/loongarch/include/asm/inst.h
index 71e1ed4165c80..4fa53ad82efb3 100644
--- a/arch/loongarch/include/asm/inst.h
+++ b/arch/loongarch/include/asm/inst.h
@@ -655,7 +655,17 @@ DEF_EMIT_REG2I16_FORMAT(blt, blt_op)
 DEF_EMIT_REG2I16_FORMAT(bge, bge_op)
 DEF_EMIT_REG2I16_FORMAT(bltu, bltu_op)
 DEF_EMIT_REG2I16_FORMAT(bgeu, bgeu_op)
-DEF_EMIT_REG2I16_FORMAT(jirl, jirl_op)
+
+static inline void emit_jirl(union loongarch_instruction *insn,
+			     enum loongarch_gpr rd,
+			     enum loongarch_gpr rj,
+			     int offset)
+{
+	insn->reg2i16_format.opcode = jirl_op;
+	insn->reg2i16_format.immediate = offset;
+	insn->reg2i16_format.rd = rd;
+	insn->reg2i16_format.rj = rj;
+}
 
 #define DEF_EMIT_REG2BSTRD_FORMAT(NAME, OP)				\
 static inline void emit_##NAME(union loongarch_instruction *insn,	\
diff --git a/arch/loongarch/kernel/inst.c b/arch/loongarch/kernel/inst.c
index 3050329556d11..14d7d700bcb98 100644
--- a/arch/loongarch/kernel/inst.c
+++ b/arch/loongarch/kernel/inst.c
@@ -332,7 +332,7 @@ u32 larch_insn_gen_jirl(enum loongarch_gpr rd, enum loongarch_gpr rj, int imm)
 		return INSN_BREAK;
 	}
 
-	emit_jirl(&insn, rj, rd, imm >> 2);
+	emit_jirl(&insn, rd, rj, imm >> 2);
 
 	return insn.word;
 }
diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c
index 497f8b0a5f1ef..6595e992fda85 100644
--- a/arch/loongarch/net/bpf_jit.c
+++ b/arch/loongarch/net/bpf_jit.c
@@ -181,13 +181,13 @@ static void __build_epilogue(struct jit_ctx *ctx, bool is_tail_call)
 		/* Set return value */
 		emit_insn(ctx, addiw, LOONGARCH_GPR_A0, regmap[BPF_REG_0], 0);
 		/* Return to the caller */
-		emit_insn(ctx, jirl, LOONGARCH_GPR_RA, LOONGARCH_GPR_ZERO, 0);
+		emit_insn(ctx, jirl, LOONGARCH_GPR_ZERO, LOONGARCH_GPR_RA, 0);
 	} else {
 		/*
 		 * Call the next bpf prog and skip the first instruction
 		 * of TCC initialization.
 		 */
-		emit_insn(ctx, jirl, LOONGARCH_GPR_T3, LOONGARCH_GPR_ZERO, 1);
+		emit_insn(ctx, jirl, LOONGARCH_GPR_ZERO, LOONGARCH_GPR_T3, 1);
 	}
 }
 
@@ -841,7 +841,7 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, bool ext
 			return ret;
 
 		move_addr(ctx, t1, func_addr);
-		emit_insn(ctx, jirl, t1, LOONGARCH_GPR_RA, 0);
+		emit_insn(ctx, jirl, LOONGARCH_GPR_RA, t1, 0);
 		move_reg(ctx, regmap[BPF_REG_0], LOONGARCH_GPR_A0);
 		break;
 
-- 
2.43.0

[PATCH AUTOSEL 6.6 13/23] platform/x86: asus-nb-wmi: Ignore unknown event 0xCF

[Sasha Levin]

From: Armin Wolf <W_Armin@gmx.de>

[ Upstream commit e9fba20c29e27dc99e55e1c550573a114561bf8c ]

On the Asus X541UAK an unknown event 0xCF is emited when the charger
is plugged in. This is caused by the following AML code:

    If (ACPS ())
    {
        ACPF = One
        Local0 = 0x58
        If (ATKP)
        {
            ^^^^ATKD.IANE (0xCF)
        }
    }
    Else
    {
        ACPF = Zero
        Local0 = 0x57
    }

    Notify (AC0, 0x80) // Status Change
    If (ATKP)
    {
        ^^^^ATKD.IANE (Local0)
    }

    Sleep (0x64)
    PNOT ()
    Sleep (0x0A)
    NBAT (0x80)

Ignore the 0xCF event to silence the unknown event warning.

Reported-by: Pau Espin Pedrol <pespin@espeweb.net>
Closes: https://lore.kernel.org/platform-driver-x86/54d4860b-ec9c-4992-acf6-db3f90388293@espeweb.net
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241123224700.18530-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/asus-nb-wmi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index af3da303e2b15..cba515ce3444d 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -590,6 +590,7 @@ static const struct key_entry asus_nb_wmi_keymap[] = {
 	{ KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
 	{ KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
 	{ KE_IGNORE, 0xC6, },  /* Ambient Light Sensor notification */
+	{ KE_IGNORE, 0xCF, },	/* AC mode */
 	{ KE_KEY, 0xFA, { KEY_PROG2 } },           /* Lid flip action */
 	{ KE_KEY, 0xBD, { KEY_PROG2 } },           /* Lid flip action on ROG xflow laptops */
 	{ KE_END, 0},
-- 
2.43.0

[PATCH AUTOSEL 6.6 14/23] net: sched: fix ordering of qlen adjustment

[Sasha Levin]

From: Lion Ackermann <nnamrec@gmail.com>

[ Upstream commit 5eb7de8cd58e73851cd37ff8d0666517d9926948 ]

Changes to sch->q.qlen around qdisc_tree_reduce_backlog() need to happen
_before_ a call to said function because otherwise it may fail to notify
parent qdiscs when the child is about to become empty.

Signed-off-by: Lion Ackermann <nnamrec@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_cake.c  | 2 +-
 net/sched/sch_choke.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index 30955dd45779e..a65fad45d5568 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -1542,7 +1542,6 @@ static unsigned int cake_drop(struct Qdisc *sch, struct sk_buff **to_free)
 	b->backlogs[idx]    -= len;
 	b->tin_backlog      -= len;
 	sch->qstats.backlog -= len;
-	qdisc_tree_reduce_backlog(sch, 1, len);
 
 	flow->dropped++;
 	b->tin_dropped++;
@@ -1553,6 +1552,7 @@ static unsigned int cake_drop(struct Qdisc *sch, struct sk_buff **to_free)
 
 	__qdisc_drop(skb, to_free);
 	sch->q.qlen--;
+	qdisc_tree_reduce_backlog(sch, 1, len);
 
 	cake_heapify(q, 0);
 
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index 19c851125901f..a919591422085 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -123,10 +123,10 @@ static void choke_drop_by_idx(struct Qdisc *sch, unsigned int idx,
 	if (idx == q->tail)
 		choke_zap_tail_holes(q);
 
+	--sch->q.qlen;
 	qdisc_qstats_backlog_dec(sch, skb);
 	qdisc_tree_reduce_backlog(sch, 1, qdisc_pkt_len(skb));
 	qdisc_drop(skb, sch, to_free);
-	--sch->q.qlen;
 }
 
 struct choke_skb_cb {
-- 
2.43.0

[PATCH AUTOSEL 6.6 15/23] spi: intel: Add Panther Lake SPI controller support

[Sasha Levin]

From: Aapo Vienamo <aapo.vienamo@iki.fi>

[ Upstream commit ceb259e43bf572ba7d766e1679ba73861d16203a ]

The Panther Lake SPI controllers are compatible with the Cannon Lake
controllers. Add support for following SPI controller device IDs:
 - H-series: 0xe323
 - P-series: 0xe423
 - U-series: 0xe423

Signed-off-by: Aapo Vienamo <aapo.vienamo@iki.fi>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://patch.msgid.link/20241204080208.1036537-1-mika.westerberg@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-intel-pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-intel-pci.c b/drivers/spi/spi-intel-pci.c
index 4337ca51d7aa2..5c0dec90eec1d 100644
--- a/drivers/spi/spi-intel-pci.c
+++ b/drivers/spi/spi-intel-pci.c
@@ -86,6 +86,8 @@ static const struct pci_device_id intel_spi_pci_ids[] = {
 	{ PCI_VDEVICE(INTEL, 0xa324), (unsigned long)&cnl_info },
 	{ PCI_VDEVICE(INTEL, 0xa3a4), (unsigned long)&cnl_info },
 	{ PCI_VDEVICE(INTEL, 0xa823), (unsigned long)&cnl_info },
+	{ PCI_VDEVICE(INTEL, 0xe323), (unsigned long)&cnl_info },
+	{ PCI_VDEVICE(INTEL, 0xe423), (unsigned long)&cnl_info },
 	{ },
 };
 MODULE_DEVICE_TABLE(pci, intel_spi_pci_ids);
-- 
2.43.0

[PATCH AUTOSEL 6.6 16/23] scsi: mpt3sas: Diag-Reset when Doorbell-In-Use bit is set during driver load time

[Sasha Levin]

From: Ranjan Kumar <ranjan.kumar@broadcom.com>

[ Upstream commit 3f5eb062e8aa335643181c480e6c590c6cedfd22 ]

Issue a Diag-Reset when the "Doorbell-In-Use" bit is set during the
driver load/initialization.

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20241110173341.11595-2-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpt3sas/mpt3sas_base.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 8acf586dc8b2e..a5d12b95fbd09 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -7050,11 +7050,12 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
 	int i;
 	u8 failed;
 	__le32 *mfp;
+	int ret_val;
 
 	/* make sure doorbell is not in use */
 	if ((ioc->base_readl_ext_retry(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) {
 		ioc_err(ioc, "doorbell is in use (line=%d)\n", __LINE__);
-		return -EFAULT;
+		goto doorbell_diag_reset;
 	}
 
 	/* clear pending doorbell interrupts from previous state changes */
@@ -7144,6 +7145,10 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
 			    le32_to_cpu(mfp[i]));
 	}
 	return 0;
+
+doorbell_diag_reset:
+	ret_val = _base_diag_reset(ioc);
+	return ret_val;
 }
 
 /**
-- 
2.43.0

[PATCH AUTOSEL 6.6 17/23] scsi: storvsc: Do not flag MAINTENANCE_IN return of SRB_STATUS_DATA_OVERRUN as an error

[Sasha Levin]

From: Cathy Avery <cavery@redhat.com>

[ Upstream commit b1aee7f034615b6824d2c70ddb37ef9fc23493b7 ]

This partially reverts commit 812fe6420a6e ("scsi: storvsc: Handle
additional SRB status values").

HyperV does not support MAINTENANCE_IN resulting in FC passthrough
returning the SRB_STATUS_DATA_OVERRUN value. Now that
SRB_STATUS_DATA_OVERRUN is treated as an error, multipath ALUA paths go
into a faulty state as multipath ALUA submits RTPG commands via
MAINTENANCE_IN.

[    3.215560] hv_storvsc 1d69d403-9692-4460-89f9-a8cbcc0f94f3:
tag#230 cmd 0xa3 status: scsi 0x0 srb 0x12 hv 0xc0000001
[    3.215572] scsi 1:0:0:32: alua: rtpg failed, result 458752

Make MAINTENANCE_IN return success to avoid the error path as is
currently done with INQUIRY and MODE_SENSE.

Suggested-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Cathy Avery <cavery@redhat.com>
Link: https://lore.kernel.org/r/20241127181324.3318443-1-cavery@redhat.com
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/storvsc_drv.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 7ceb982040a5d..d0b55c1fa908a 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -149,6 +149,8 @@ struct hv_fc_wwn_packet {
 */
 static int vmstor_proto_version;
 
+static bool hv_dev_is_fc(struct hv_device *hv_dev);
+
 #define STORVSC_LOGGING_NONE	0
 #define STORVSC_LOGGING_ERROR	1
 #define STORVSC_LOGGING_WARN	2
@@ -1138,6 +1140,7 @@ static void storvsc_on_io_completion(struct storvsc_device *stor_device,
 	 * not correctly handle:
 	 * INQUIRY command with page code parameter set to 0x80
 	 * MODE_SENSE command with cmd[2] == 0x1c
+	 * MAINTENANCE_IN is not supported by HyperV FC passthrough
 	 *
 	 * Setup srb and scsi status so this won't be fatal.
 	 * We do this so we can distinguish truly fatal failues
@@ -1145,7 +1148,9 @@ static void storvsc_on_io_completion(struct storvsc_device *stor_device,
 	 */
 
 	if ((stor_pkt->vm_srb.cdb[0] == INQUIRY) ||
-	   (stor_pkt->vm_srb.cdb[0] == MODE_SENSE)) {
+	   (stor_pkt->vm_srb.cdb[0] == MODE_SENSE) ||
+	   (stor_pkt->vm_srb.cdb[0] == MAINTENANCE_IN &&
+	   hv_dev_is_fc(device))) {
 		vstor_packet->vm_srb.scsi_status = 0;
 		vstor_packet->vm_srb.srb_status = SRB_STATUS_SUCCESS;
 	}
-- 
2.43.0

[PATCH AUTOSEL 6.6 18/23] spi: omap2-mcspi: Fix the IS_ERR() bug for devm_clk_get_optional_enabled()

[Sasha Levin]

From: Purushothama Siddaiah <psiddaiah@mvista.com>

[ Upstream commit 4c6ac5446d060f0bf435ccc8bc3aa7b7b5f718ad ]

The devm_clk_get_optional_enabled() function returns error
pointers(PTR_ERR()). So use IS_ERR() to check it.

Verified on K3-J7200 EVM board, without clock node mentioned
in the device tree.

Signed-off-by: Purushothama Siddaiah <psiddaiah@mvista.com>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Link: https://patch.msgid.link/20241205070426.1861048-1-psiddaiah@mvista.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-omap2-mcspi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index ddf1c684bcc7d..3cfd262c1abc2 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1521,10 +1521,10 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
 	}
 
 	mcspi->ref_clk = devm_clk_get_optional_enabled(&pdev->dev, NULL);
-	if (mcspi->ref_clk)
-		mcspi->ref_clk_hz = clk_get_rate(mcspi->ref_clk);
-	else
+	if (IS_ERR(mcspi->ref_clk))
 		mcspi->ref_clk_hz = OMAP2_MCSPI_MAX_FREQ;
+	else
+		mcspi->ref_clk_hz = clk_get_rate(mcspi->ref_clk);
 	ctlr->max_speed_hz = mcspi->ref_clk_hz;
 	ctlr->min_speed_hz = mcspi->ref_clk_hz >> 15;
 
-- 
2.43.0

[PATCH AUTOSEL 6.6 19/23] drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()

[Sasha Levin]

From: Imre Deak <imre.deak@intel.com>

[ Upstream commit e54b00086f7473dbda1a7d6fc47720ced157c6a8 ]

While receiving an MST up request message from one thread in
drm_dp_mst_handle_up_req(), the MST topology could be removed from
another thread via drm_dp_mst_topology_mgr_set_mst(false), freeing
mst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL.
This could lead to a NULL deref/use-after-free of mst_primary in
drm_dp_mst_handle_up_req().

Avoid the above by holding a reference for mst_primary in
drm_dp_mst_handle_up_req() while it's used.

v2: Fix kfreeing the request if getting an mst_primary reference fails.

Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241204132007.3132494-1-imre.deak@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/display/drm_dp_mst_topology.c | 24 ++++++++++++++-----
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
index 6ead31701e79e..4d954e50964f0 100644
--- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
@@ -3995,9 +3995,10 @@ static void drm_dp_mst_up_req_work(struct work_struct *work)
 static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 {
 	struct drm_dp_pending_up_req *up_req;
+	struct drm_dp_mst_branch *mst_primary;
 
 	if (!drm_dp_get_one_sb_msg(mgr, true, NULL))
-		goto out;
+		goto out_clear_reply;
 
 	if (!mgr->up_req_recv.have_eomt)
 		return 0;
@@ -4015,10 +4016,19 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 		drm_dbg_kms(mgr->dev, "Received unknown up req type, ignoring: %x\n",
 			    up_req->msg.req_type);
 		kfree(up_req);
-		goto out;
+		goto out_clear_reply;
+	}
+
+	mutex_lock(&mgr->lock);
+	mst_primary = mgr->mst_primary;
+	if (!mst_primary || !drm_dp_mst_topology_try_get_mstb(mst_primary)) {
+		mutex_unlock(&mgr->lock);
+		kfree(up_req);
+		goto out_clear_reply;
 	}
+	mutex_unlock(&mgr->lock);
 
-	drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, up_req->msg.req_type,
+	drm_dp_send_up_ack_reply(mgr, mst_primary, up_req->msg.req_type,
 				 false);
 
 	if (up_req->msg.req_type == DP_CONNECTION_STATUS_NOTIFY) {
@@ -4035,13 +4045,13 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 			    conn_stat->peer_device_type);
 
 		mutex_lock(&mgr->probe_lock);
-		handle_csn = mgr->mst_primary->link_address_sent;
+		handle_csn = mst_primary->link_address_sent;
 		mutex_unlock(&mgr->probe_lock);
 
 		if (!handle_csn) {
 			drm_dbg_kms(mgr->dev, "Got CSN before finish topology probing. Skip it.");
 			kfree(up_req);
-			goto out;
+			goto out_put_primary;
 		}
 	} else if (up_req->msg.req_type == DP_RESOURCE_STATUS_NOTIFY) {
 		const struct drm_dp_resource_status_notify *res_stat =
@@ -4058,7 +4068,9 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 	mutex_unlock(&mgr->up_req_lock);
 	queue_work(system_long_wq, &mgr->up_req_work);
 
-out:
+out_put_primary:
+	drm_dp_mst_topology_put_mstb(mst_primary);
+out_clear_reply:
 	memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx));
 	return 0;
 }
-- 
2.43.0

[PATCH AUTOSEL 6.6 20/23] drm/dp_mst: Reset message rx state after OOM in drm_dp_mst_handle_up_req()

[Sasha Levin]

From: Imre Deak <imre.deak@intel.com>

[ Upstream commit 2b245c97b1af5d8f04c359e0826cb5a5c81ef704 ]

After an out-of-memory error the reception state should be reset, so
that the next attempt receiving a message doesn't fail (due to getting a
start-of-message packet, while the reception state has already the
start-of-message flag set).

Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-7-imre.deak@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/display/drm_dp_mst_topology.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
index 4d954e50964f0..b3c613f5e2089 100644
--- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
@@ -3996,6 +3996,7 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 {
 	struct drm_dp_pending_up_req *up_req;
 	struct drm_dp_mst_branch *mst_primary;
+	int ret = 0;
 
 	if (!drm_dp_get_one_sb_msg(mgr, true, NULL))
 		goto out_clear_reply;
@@ -4004,8 +4005,10 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 		return 0;
 
 	up_req = kzalloc(sizeof(*up_req), GFP_KERNEL);
-	if (!up_req)
-		return -ENOMEM;
+	if (!up_req) {
+		ret = -ENOMEM;
+		goto out_clear_reply;
+	}
 
 	INIT_LIST_HEAD(&up_req->next);
 
@@ -4072,7 +4075,7 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 	drm_dp_mst_topology_put_mstb(mst_primary);
 out_clear_reply:
 	memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx));
-	return 0;
+	return ret;
 }
 
 /**
-- 
2.43.0

[PATCH AUTOSEL 6.6 21/23] virtio-blk: don't keep queue frozen during system suspend

[Sasha Levin]

From: Ming Lei <ming.lei@redhat.com>

[ Upstream commit 7678abee0867e6b7fb89aa40f6e9f575f755fb37 ]

Commit 4ce6e2db00de ("virtio-blk: Ensure no requests in virtqueues before
deleting vqs.") replaces queue quiesce with queue freeze in virtio-blk's
PM callbacks. And the motivation is to drain inflight IOs before suspending.

block layer's queue freeze looks very handy, but it is also easy to cause
deadlock, such as, any attempt to call into bio_queue_enter() may run into
deadlock if the queue is frozen in current context. There are all kinds
of ->suspend() called in suspend context, so keeping queue frozen in the
whole suspend context isn't one good idea. And Marek reported lockdep
warning[1] caused by virtio-blk's freeze queue in virtblk_freeze().

[1] https://lore.kernel.org/linux-block/ca16370e-d646-4eee-b9cc-87277c89c43c@samsung.com/

Given the motivation is to drain in-flight IOs, it can be done by calling
freeze & unfreeze, meantime restore to previous behavior by keeping queue
quiesced during suspend.

Cc: Yi Sun <yi.sun@unisoc.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: virtualization@lists.linux.dev
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Link: https://lore.kernel.org/r/20241112125821.1475793-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/virtio_blk.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 997106fe73e49..65a1f1576e55f 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -1624,9 +1624,12 @@ static void virtblk_remove(struct virtio_device *vdev)
 static int virtblk_freeze(struct virtio_device *vdev)
 {
 	struct virtio_blk *vblk = vdev->priv;
+	struct request_queue *q = vblk->disk->queue;
 
 	/* Ensure no requests in virtqueues before deleting vqs. */
-	blk_mq_freeze_queue(vblk->disk->queue);
+	blk_mq_freeze_queue(q);
+	blk_mq_quiesce_queue_nowait(q);
+	blk_mq_unfreeze_queue(q);
 
 	/* Ensure we don't receive any more interrupts */
 	virtio_reset_device(vdev);
@@ -1650,8 +1653,8 @@ static int virtblk_restore(struct virtio_device *vdev)
 		return ret;
 
 	virtio_device_ready(vdev);
+	blk_mq_unquiesce_queue(vblk->disk->queue);
 
-	blk_mq_unfreeze_queue(vblk->disk->queue);
 	return 0;
 }
 #endif
-- 
2.43.0

[PATCH AUTOSEL 6.6 22/23] blk-mq: register cpuhp callback after hctx is added to xarray table

[Sasha Levin]

From: Ming Lei <ming.lei@redhat.com>

[ Upstream commit 4bf485a7db5d82ddd0f3ad2b299893199090375e ]

We need to retrieve 'hctx' from xarray table in the cpuhp callback, so the
callback should be registered after this 'hctx' is added to xarray table.

Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Peter Newman <peternewman@google.com>
Cc: Babu Moger <babu.moger@amd.com>
Cc: Luck Tony <tony.luck@intel.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20241206111611.978870-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-mq.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 6c71add013bfc..f4a9eed1b9774 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -3708,16 +3708,11 @@ static int blk_mq_init_hctx(struct request_queue *q,
 {
 	hctx->queue_num = hctx_idx;
 
-	if (!(hctx->flags & BLK_MQ_F_STACKING))
-		cpuhp_state_add_instance_nocalls(CPUHP_AP_BLK_MQ_ONLINE,
-				&hctx->cpuhp_online);
-	cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD, &hctx->cpuhp_dead);
-
 	hctx->tags = set->tags[hctx_idx];
 
 	if (set->ops->init_hctx &&
 	    set->ops->init_hctx(hctx, set->driver_data, hctx_idx))
-		goto unregister_cpu_notifier;
+		goto fail;
 
 	if (blk_mq_init_request(set, hctx->fq->flush_rq, hctx_idx,
 				hctx->numa_node))
@@ -3726,6 +3721,11 @@ static int blk_mq_init_hctx(struct request_queue *q,
 	if (xa_insert(&q->hctx_table, hctx_idx, hctx, GFP_KERNEL))
 		goto exit_flush_rq;
 
+	if (!(hctx->flags & BLK_MQ_F_STACKING))
+		cpuhp_state_add_instance_nocalls(CPUHP_AP_BLK_MQ_ONLINE,
+				&hctx->cpuhp_online);
+	cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD, &hctx->cpuhp_dead);
+
 	return 0;
 
  exit_flush_rq:
@@ -3734,8 +3734,7 @@ static int blk_mq_init_hctx(struct request_queue *q,
  exit_hctx:
 	if (set->ops->exit_hctx)
 		set->ops->exit_hctx(hctx, hctx_idx);
- unregister_cpu_notifier:
-	blk_mq_remove_cpuhp(hctx);
+ fail:
 	return -1;
 }
 
-- 
2.43.0

[PATCH AUTOSEL 6.6 23/23] blk-mq: move cpuhp callback registering out of q->sysfs_lock

[Sasha Levin]

From: Ming Lei <ming.lei@redhat.com>

[ Upstream commit 22465bbac53c821319089016f268a2437de9b00a ]

Registering and unregistering cpuhp callback requires global cpu hotplug lock,
which is used everywhere. Meantime q->sysfs_lock is used in block layer
almost everywhere.

It is easy to trigger lockdep warning[1] by connecting the two locks.

Fix the warning by moving blk-mq's cpuhp callback registering out of
q->sysfs_lock. Add one dedicated global lock for covering registering &
unregistering hctx's cpuhp, and it is safe to do so because hctx is
guaranteed to be live if our request_queue is live.

[1] https://lore.kernel.org/lkml/Z04pz3AlvI4o0Mr8@agluck-desk3/

Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Peter Newman <peternewman@google.com>
Cc: Babu Moger <babu.moger@amd.com>
Reported-by: Luck Tony <tony.luck@intel.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20241206111611.978870-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-mq.c | 103 +++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 92 insertions(+), 11 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index f4a9eed1b9774..9efc2fd3e4c4a 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -43,6 +43,7 @@
 
 static DEFINE_PER_CPU(struct llist_head, blk_cpu_done);
 static DEFINE_PER_CPU(call_single_data_t, blk_cpu_csd);
+static DEFINE_MUTEX(blk_mq_cpuhp_lock);
 
 static void blk_mq_insert_request(struct request *rq, blk_insert_t flags);
 static void blk_mq_request_bypass_insert(struct request *rq,
@@ -3623,13 +3624,91 @@ static int blk_mq_hctx_notify_dead(unsigned int cpu, struct hlist_node *node)
 	return 0;
 }
 
-static void blk_mq_remove_cpuhp(struct blk_mq_hw_ctx *hctx)
+static void __blk_mq_remove_cpuhp(struct blk_mq_hw_ctx *hctx)
 {
-	if (!(hctx->flags & BLK_MQ_F_STACKING))
+	lockdep_assert_held(&blk_mq_cpuhp_lock);
+
+	if (!(hctx->flags & BLK_MQ_F_STACKING) &&
+	    !hlist_unhashed(&hctx->cpuhp_online)) {
 		cpuhp_state_remove_instance_nocalls(CPUHP_AP_BLK_MQ_ONLINE,
 						    &hctx->cpuhp_online);
-	cpuhp_state_remove_instance_nocalls(CPUHP_BLK_MQ_DEAD,
-					    &hctx->cpuhp_dead);
+		INIT_HLIST_NODE(&hctx->cpuhp_online);
+	}
+
+	if (!hlist_unhashed(&hctx->cpuhp_dead)) {
+		cpuhp_state_remove_instance_nocalls(CPUHP_BLK_MQ_DEAD,
+						    &hctx->cpuhp_dead);
+		INIT_HLIST_NODE(&hctx->cpuhp_dead);
+	}
+}
+
+static void blk_mq_remove_cpuhp(struct blk_mq_hw_ctx *hctx)
+{
+	mutex_lock(&blk_mq_cpuhp_lock);
+	__blk_mq_remove_cpuhp(hctx);
+	mutex_unlock(&blk_mq_cpuhp_lock);
+}
+
+static void __blk_mq_add_cpuhp(struct blk_mq_hw_ctx *hctx)
+{
+	lockdep_assert_held(&blk_mq_cpuhp_lock);
+
+	if (!(hctx->flags & BLK_MQ_F_STACKING) &&
+	    hlist_unhashed(&hctx->cpuhp_online))
+		cpuhp_state_add_instance_nocalls(CPUHP_AP_BLK_MQ_ONLINE,
+				&hctx->cpuhp_online);
+
+	if (hlist_unhashed(&hctx->cpuhp_dead))
+		cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD,
+				&hctx->cpuhp_dead);
+}
+
+static void __blk_mq_remove_cpuhp_list(struct list_head *head)
+{
+	struct blk_mq_hw_ctx *hctx;
+
+	lockdep_assert_held(&blk_mq_cpuhp_lock);
+
+	list_for_each_entry(hctx, head, hctx_list)
+		__blk_mq_remove_cpuhp(hctx);
+}
+
+/*
+ * Unregister cpuhp callbacks from exited hw queues
+ *
+ * Safe to call if this `request_queue` is live
+ */
+static void blk_mq_remove_hw_queues_cpuhp(struct request_queue *q)
+{
+	LIST_HEAD(hctx_list);
+
+	spin_lock(&q->unused_hctx_lock);
+	list_splice_init(&q->unused_hctx_list, &hctx_list);
+	spin_unlock(&q->unused_hctx_lock);
+
+	mutex_lock(&blk_mq_cpuhp_lock);
+	__blk_mq_remove_cpuhp_list(&hctx_list);
+	mutex_unlock(&blk_mq_cpuhp_lock);
+
+	spin_lock(&q->unused_hctx_lock);
+	list_splice(&hctx_list, &q->unused_hctx_list);
+	spin_unlock(&q->unused_hctx_lock);
+}
+
+/*
+ * Register cpuhp callbacks from all hw queues
+ *
+ * Safe to call if this `request_queue` is live
+ */
+static void blk_mq_add_hw_queues_cpuhp(struct request_queue *q)
+{
+	struct blk_mq_hw_ctx *hctx;
+	unsigned long i;
+
+	mutex_lock(&blk_mq_cpuhp_lock);
+	queue_for_each_hw_ctx(q, hctx, i)
+		__blk_mq_add_cpuhp(hctx);
+	mutex_unlock(&blk_mq_cpuhp_lock);
 }
 
 /*
@@ -3680,8 +3759,6 @@ static void blk_mq_exit_hctx(struct request_queue *q,
 	if (set->ops->exit_hctx)
 		set->ops->exit_hctx(hctx, hctx_idx);
 
-	blk_mq_remove_cpuhp(hctx);
-
 	xa_erase(&q->hctx_table, hctx_idx);
 
 	spin_lock(&q->unused_hctx_lock);
@@ -3698,6 +3775,7 @@ static void blk_mq_exit_hw_queues(struct request_queue *q,
 	queue_for_each_hw_ctx(q, hctx, i) {
 		if (i == nr_queue)
 			break;
+		blk_mq_remove_cpuhp(hctx);
 		blk_mq_exit_hctx(q, set, hctx, i);
 	}
 }
@@ -3721,11 +3799,6 @@ static int blk_mq_init_hctx(struct request_queue *q,
 	if (xa_insert(&q->hctx_table, hctx_idx, hctx, GFP_KERNEL))
 		goto exit_flush_rq;
 
-	if (!(hctx->flags & BLK_MQ_F_STACKING))
-		cpuhp_state_add_instance_nocalls(CPUHP_AP_BLK_MQ_ONLINE,
-				&hctx->cpuhp_online);
-	cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD, &hctx->cpuhp_dead);
-
 	return 0;
 
  exit_flush_rq:
@@ -3760,6 +3833,8 @@ blk_mq_alloc_hctx(struct request_queue *q, struct blk_mq_tag_set *set,
 	INIT_DELAYED_WORK(&hctx->run_work, blk_mq_run_work_fn);
 	spin_lock_init(&hctx->lock);
 	INIT_LIST_HEAD(&hctx->dispatch);
+	INIT_HLIST_NODE(&hctx->cpuhp_dead);
+	INIT_HLIST_NODE(&hctx->cpuhp_online);
 	hctx->queue = q;
 	hctx->flags = set->flags & ~BLK_MQ_F_TAG_QUEUE_SHARED;
 
@@ -4278,6 +4353,12 @@ static void blk_mq_realloc_hw_ctxs(struct blk_mq_tag_set *set,
 	xa_for_each_start(&q->hctx_table, j, hctx, j)
 		blk_mq_exit_hctx(q, set, hctx, j);
 	mutex_unlock(&q->sysfs_lock);
+
+	/* unregister cpuhp callbacks for exited hctxs */
+	blk_mq_remove_hw_queues_cpuhp(q);
+
+	/* register cpuhp for new initialized hctxs */
+	blk_mq_add_hw_queues_cpuhp(q);
 }
 
 static void blk_mq_update_poll_flag(struct request_queue *q)
-- 
2.43.0