APPLIED[M,J,F]: [SRU] [F/J/M/N] [PATCH 0/1] Fix malfunction SANDISK USB drive
Roxana Nicolescu
roxana.nicolescu at canonical.com
Thu Apr 25 18:43:31 UTC 2024
On 12/04/2024 05:23, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/2040948
>
> [Impact]
> Sandisk USB drive can stop working after reboot.
>
> [Fix]
> Disable USB3 LPM at shutdown, so the device won't linger in wrong power
> state at bootup.
>
> [Test]
> The affected SANDISK USB drive remains in lsusb for 10k times reboot.
>
> [Where problems could occur]
> Nothing that I can think of. This is the right thing to do.
> To take a step further, the USB core should probably put USB devices to
> USB U3 to save power and properly power cycle it. But let's do it when
> it's proven needed.
>
> Kai-Heng Feng (1):
> usb: Disable USB3 LPM at shutdown
>
> drivers/usb/core/port.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
Applied to mantic, jammy, focal master-next branches. Thanks!
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