Public bug reported:
[Impact]
We already have correct NVMe suspend-to-idle implementation, we can
remove workaround we carried in Ubuntu kernel.
[Fix]
Revert unnecessary no D3 quirks we used as workaround.
[Test]
After the revert, both NVMe still use native power saving mechanism as
intended.
[Regression Potential]
Though unlikely, if there is any platform that uses legacy S3 and needs
to keep the NVMe device in D0 instead of D3, this might have impact on
that scenario.
** Affects: linux (Ubuntu)
Importance: Low
Status: Confirmed
** Affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Focal)
Importance: Low
Status: Confirmed
** Affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Low
Status: New
** Affects: linux (Ubuntu Groovy)
Importance: Low
Status: Confirmed
** Affects: linux-oem-5.6 (Ubuntu Groovy)
Importance: Undecided
Status: Invalid
** Also affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.6 (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Focal)
Status: New => Confirmed
** Changed in: linux (Ubuntu Groovy)
Status: New => Confirmed
** Changed in: linux-oem-5.6 (Ubuntu Groovy)
Status: New => Invalid
** Changed in: linux (Ubuntu Focal)
Importance: Undecided => Low
** Changed in: linux (Ubuntu Groovy)
Importance: Undecided => Low
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided => Low
** Description changed:
[Impact]
We already have correct NVMe suspend-to-idle implementation, we can
remove workaround we carried in Ubuntu kernel.
[Fix]
- Revert unnecessary no quirks we used as workaround.
-
+ Revert unnecessary no D3 quirks we used as workaround.
+
[Test]
After the revert, both NVMe still use native power saving mechanism as
intended.
[Regression Potential]
Though unlikely, if there is any platform that uses legacy S3 and needs
to keep the NVMe device in D0 instead of D3, this might have impact on
that scenario.
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https://bugs.launchpad.net/bugs/1897227
Title:
Remove NVMe suspend-to-idle workaround
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