NACK/CMNT: [SRU][J/N/Q][PATCH 0/1] ata: libata-core: disable LPM on ADATA SU680 SSD

[Alice C. Munduruca]

On Mon Mar 23, 2026 at 3:04 PM EDT, Alice C. Munduruca wrote:
> BugLink: https://bugs.launchpad.net/bugs/2144060
>
> [ Impact ]
>
> Given that the ADATA SU680 does not implement LPM correctly, filesystem corruption,
> freezes, and general instability occur frequently when running Ubuntu on this drive.
>
> To fix this, the quirk `ATA_QUIRK_NOLPM` was added for this device so that the offending
> behavior is stopped and the drive can function as expected.
>
> [ Fix ]
>
> resolute: Will be pulled in from v7.0-rc5.
> questing: Backported with small context changes.
> noble: Backported with small context difference and quirk renaming.
> jammy: Applied noble patch.
>
> [ Test Case ]
>
> Compile and boot tested on VM, and bug reporter on launchpad confirms that the patch
> resolved the above-noted instability.
>
> [ Regression Potential ]
>
> Given that no significant logic is changed, (only a quirk is added) there is no real
> regression potential for users that don't use this ADATA SSD, which was already broken.
>
> Damien Le Moal (1):
>   ata: libata-core: disable LPM on ADATA SU680 SSD
>
>  drivers/ata/libata-core.c | 4 ++++
>  1 file changed, 4 insertions(+)

I tried to salvage these patches after a service error from gmail split them up, but it
looks as though the format is incorrect and I'll have to resend a v2.

Nacked-by: Alice C. Munduruca <alice.munduruca at canonical.com>