From: Greg KH <gregkh@linuxfoundation.org>
To: Zijun Hu <quic_zijuhu@quicinc.com>
Cc: luiz.dentz@gmail.com, luiz.von.dentz@intel.com,
marcel@holtmann.org, linux-bluetooth@vger.kernel.org,
bartosz.golaszewski@linaro.org, krzysztof.kozlowski@linaro.org,
wt@penguintechs.org, regressions@lists.linux.dev,
kernel@quicinc.com, stable@vge.kernel.org
Subject: Re: [PATCH v7 2/2] Bluetooth: qca: Fix BT enable failure for QCA6390 after disable then warm reboot
Date: Tue, 23 Apr 2024 21:34:43 -0700 [thread overview]
Message-ID: <2024042330-boat-launch-aaec@gregkh> (raw)
In-Reply-To: <1713932807-19619-3-git-send-email-quic_zijuhu@quicinc.com>
On Wed, Apr 24, 2024 at 12:26:47PM +0800, Zijun Hu wrote:
> From: Zijun Hu <zijuhu@qti.qualcomm.com>
>
> Commit 272970be3dab ("Bluetooth: hci_qca: Fix driver shutdown on closed
> serdev") will cause below regression issue:
>
> BT can't be enabled after below steps:
> cold boot -> enable BT -> disable BT -> warm reboot -> BT enable failure
> if property enable-gpios is not configured within DT|ACPI for QCA6390.
>
> The commit is to fix a use-after-free issue within qca_serdev_shutdown()
> during reboot, but also introduces this regression issue regarding above
> steps since the VSC is not sent to reset controller during warm reboot.
>
> Fixed by sending the VSC to reset controller within qca_serdev_shutdown()
> once BT was ever enabled, and the use-after-free issue is also be fixed
> by this change since serdev is still opened when send to serdev.
>
> Fixes: 272970be3dab ("Bluetooth: hci_qca: Fix driver shutdown on closed serdev")
> Cc: stable@vge.kernel.org
That is not a valid email address :(
next prev parent reply other threads:[~2024-04-24 4:34 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-24 4:26 [PATCH v7 0/2] Fix two BT regression issues for QCA6390 Zijun Hu
2024-04-24 4:26 ` [PATCH v7 1/2] Bluetooth: qca: Fix BT enable failure " Zijun Hu
2024-04-24 4:30 ` Krzysztof Kozlowski
2024-04-24 5:02 ` quic_zijuhu
2024-04-24 5:05 ` quic_zijuhu
2024-04-24 5:37 ` Wren Turkal
2024-04-24 5:46 ` quic_zijuhu
2024-04-24 5:49 ` Wren Turkal
2024-04-24 6:01 ` quic_zijuhu
2024-04-24 9:39 ` quic_zijuhu
2024-04-24 9:48 ` Krzysztof Kozlowski
2024-04-24 9:54 ` quic_zijuhu
2024-04-24 10:34 ` Bartosz Golaszewski
2024-04-24 11:35 ` quic_zijuhu
2024-04-24 4:56 ` Fix two BT regression issues " bluez.test.bot
2024-04-24 4:26 ` [PATCH v7 2/2] Bluetooth: qca: Fix BT enable failure for QCA6390 after disable then warm reboot Zijun Hu
2024-04-24 4:34 ` Greg KH [this message]
2024-04-26 20:42 ` Wren Turkal
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