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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Marcel Holtmann <marcel@holtmann.org>,
	Johan Hedberg <johan.hedberg@intel.com>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.2 01/45] Revert "Bluetooth: validate BLE connection interval updates"
Date: Sun, 29 Sep 2019 15:55:29 +0200	[thread overview]
Message-ID: <20190929135024.751205303@linuxfoundation.org> (raw)
In-Reply-To: <20190929135024.387033930@linuxfoundation.org>

From: Marcel Holtmann <marcel@holtmann.org>

[ Upstream commit 68d19d7d995759b96169da5aac313363f92a9075 ]

This reverts commit c49a8682fc5d298d44e8d911f4fa14690ea9485e.

There are devices which require low connection intervals for usable operation
including keyboards and mice. Forcing a static connection interval for
these types of devices has an impact in latency and causes a regression.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_event.c  | 5 -----
 net/bluetooth/l2cap_core.c | 9 +--------
 2 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 17c50a98e7f78..9e4fcf406d9cd 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5588,11 +5588,6 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
 		return send_conn_param_neg_reply(hdev, handle,
 						 HCI_ERROR_UNKNOWN_CONN_ID);
 
-	if (min < hcon->le_conn_min_interval ||
-	    max > hcon->le_conn_max_interval)
-		return send_conn_param_neg_reply(hdev, handle,
-						 HCI_ERROR_INVALID_LL_PARAMS);
-
 	if (hci_check_conn_params(min, max, latency, timeout))
 		return send_conn_param_neg_reply(hdev, handle,
 						 HCI_ERROR_INVALID_LL_PARAMS);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 32d2be9d68585..771e3e17bb6a3 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5297,14 +5297,7 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
 
 	memset(&rsp, 0, sizeof(rsp));
 
-	if (min < hcon->le_conn_min_interval ||
-	    max > hcon->le_conn_max_interval) {
-		BT_DBG("requested connection interval exceeds current bounds.");
-		err = -EINVAL;
-	} else {
-		err = hci_check_conn_params(min, max, latency, to_multiplier);
-	}
-
+	err = hci_check_conn_params(min, max, latency, to_multiplier);
 	if (err)
 		rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED);
 	else
-- 
2.20.1




  reply	other threads:[~2019-09-29 14:00 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-29 13:55 [PATCH 5.2 00/45] 5.2.18-stable review Greg Kroah-Hartman
2019-09-29 13:55 ` Greg Kroah-Hartman [this message]
2019-09-29 13:55 ` [PATCH 5.2 02/45] smb3: fix unmount hang in open_shroot Greg Kroah-Hartman
2019-10-01 20:41   ` Pavel Shilovskiy
2019-10-01 22:49     ` Sasha Levin
2019-10-01 22:58       ` Pavel Shilovskiy
2019-09-29 13:55 ` [PATCH 5.2 03/45] phy: qcom-qmp: Raise qcom_qmp_phy_enable() polling delay Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 04/45] phy: qcom-qmp: Correct ready status, again Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 05/45] net/ibmvnic: free reset work of removed device from queue Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 06/45] drm/amd/display: Allow cursor async updates for framebuffer swaps Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 07/45] drm/amd/display: Skip determining update type for async updates Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 08/45] drm/amd/display: Dont replace the dc_state for fast updates Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 09/45] powerpc/xive: Fix bogus error code returned by OPAL Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 10/45] drm/amd/display: readd -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 11/45] Revert "net: hns: fix LED configuration for marvell phy" Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 12/45] HID: prodikeys: Fix general protection fault during probe Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 13/45] HID: sony: Fix memory corruption issue on cleanup Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 14/45] HID: logitech: Fix general protection fault caused by Logitech driver Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 15/45] HID: logitech-dj: Fix crash when initial logi_dj_recv_query_paired_devices fails Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 16/45] HID: hidraw: Fix invalid read in hidraw_ioctl Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 17/45] HID: Add quirk for HP X500 PIXART OEM mouse Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 18/45] mtd: cfi_cmdset_0002: Use chip_good() to retry in do_write_oneword() Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 19/45] crypto: talitos - fix missing break in switch statement Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 20/45] clk: imx: imx8mm: fix audio pll setting Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 21/45] Revert "HID: logitech-hidpp: add USB PID for a few more supported mice" Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 22/45] Revert "mm/z3fold.c: fix race between migration and destruction" Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 23/45] ALSA: usb-audio: Add Hiby device family to quirks for native DSD support Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 24/45] ALSA: usb-audio: Add DSD support for EVGA NU Audio Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 25/45] ALSA: dice: fix wrong packet parameter for Alesis iO26 Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 26/45] ALSA: hda - Add laptop imic fixup for ASUS M9V laptop Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 27/45] ALSA: hda - Apply AMD controller workaround for Raven platform Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 28/45] platform/x86: i2c-multi-instantiate: Derive the device name from parent Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 29/45] objtool: Clobber user CFLAGS variable Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 30/45] Revert "f2fs: avoid out-of-range memory access" Greg Kroah-Hartman
2019-09-29 13:55 ` [PATCH 5.2 31/45] dm zoned: fix invalid memory access Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 32/45] net/ibmvnic: Fix missing { in __ibmvnic_reset Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 33/45] f2fs: fix to do sanity check on segment bitmap of LFS curseg Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 34/45] drm: Flush output polling on shutdown Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 35/45] drm/dp: Add DP_DPCD_QUIRK_NO_SINK_COUNT Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 36/45] net: dont warn in inet diag when IPV6 is disabled Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 37/45] Bluetooth: btrtl: HCI reset on close for Realtek BT chip Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 38/45] ACPI: video: Add new hw_changes_brightness quirk, set it on PB Easynote MZ35 Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 39/45] drm/nouveau/disp/nv50-: fix center/aspect-corrected scaling Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 40/45] xfs: dont crash on null attr fork xfs_bmapi_read Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 41/45] xfrm: policy: avoid warning splat when merging nodes Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 42/45] netfilter: nft_socket: fix erroneous socket assignment Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 43/45] Bluetooth: btrtl: Additional Realtek 8822CE Bluetooth devices Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 44/45] net_sched: check cops->tcf_block in tc_bind_tclass() Greg Kroah-Hartman
2019-09-29 13:56 ` [PATCH 5.2 45/45] net/rds: An rds_sock is added too early to the hash table Greg Kroah-Hartman
2019-09-29 19:00 ` [PATCH 5.2 00/45] 5.2.18-stable review kernelci.org bot
2019-09-30 18:30 ` Guenter Roeck
2019-10-01  0:53 ` shuah
2019-10-01  1:10 ` Dan Rue
2019-10-01 14:58 ` Jon Hunter

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