[PATCH 0/1][SRU][B/D/E] Fix Intel 3168 WiFi card regression

Sultan Alsawaf sultan.alsawaf at canonical.com
Tue Mar 24 23:22:05 UTC 2020

BugLink: https://bugs.launchpad.net/bugs/1868442

A recent upstream commit, "iwlwifi: mvm: fix NVM check for 3168 devices", broke
3168 WiFi cards completely. This commit is present in B/D/E, so all of those
kernels are affected by this issue.

The fix, "iwlwifi: mvm: Do not require PHY_SKU NVM section for 3168 devices",
recently landed upstream in Linus' tree and affected linux-stable trees.

Although I haven't checked with our reporter to see if this patch fixes their
issue, their provided dmesg errors match exactly what was reported to other
Linux distributions (such as Fedora [1] and Gentoo [2]), and those distributions
reported that this commit fixed the issue. It also matches what was reported to
the Linux kernel's bug tracker [3].

The regression potential is low since this patch is small and is confirmed to
fix 3168 WiFi cards.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1800335
[2] https://bugs.gentoo.org/706810
[3] https://bugzilla.kernel.org/show_bug.cgi?id=206329

Dan Moulding (1):
  iwlwifi: mvm: Do not require PHY_SKU NVM section for 3168 devices

 drivers/net/wireless/intel/iwlwifi/mvm/nvm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)


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