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

[Alice C. Munduruca]

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(+)

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2.51.0