APPLIED[K]: [SRU][Jammy][Kinetic][PATCH 0/1] Fix for LP:1984103

[Andrea Righi]

On Mon, Sep 12, 2022 at 12:27:40PM -0400, Joseph Salisbury wrote:
> BugLink: https://bugs.launchpad.net/bugs/1984103
> 
> == SRU Justification ==
> Since commit e6e771b3d897 ("s390/qeth: detach netdevice while card is offline")
> there was a timing window during recovery, that qeth_query_card_info could be
> sent to the card, even before it was ready for it, leading to a failing card
> recovery. There is evidence that this window was hit, as not all callers of
> get_link_ksettings() check for netif_device_present.
> 
> This patch (Mainline commit 7a07a29e4f67) fixes the regression caused by commit
> e6e771b3d897.
> 
> Commit 7a07a29e4f67 is in mainline as of v6.0-rc1.
> 
> This patch is being requested in Jammy 5.15 and Kinetic 5.19.
> 
> 
> == Fix ==
> 7a07a29e4f67 ("s390/qeth: cache link_info for ethtool")
> 
> == Regression Potential ==
> Low.  This patch has been accepted in upstream stable and is limited to
> the s390/qeth card.
> 
> == Test Case ==
> A test kernel was built with this patch and tested by the original bug reporter.
> The bug reporter states the test kernel resolved the bug.

Applied to kinetic/linux.

-Andrea