On Thu, 26 Aug 2021 16:38:35 +0200 Greg Kroah-Hartman wrote:

quoted

I did some investiation and I suspect that commit ce78ffa3ef16 ("net:
really fix the build...")[1] is for handling a conflict between net-next
and char-misc-next trees related to Loic's commit 0092a1e3f763 ("bus:
mhi: Add inbound buffers allocation flag"). Greg mentions this in a
commit[2]:

commit 813272ed5238b37c81e448b302048e8008570121
Merge: de0534df9347 36a21d51725a
Author:     Greg Kroah-Hartman [off-list ref]

    Merge 5.14-rc5 into char-misc-next
    
    We need the fixes in here as well, and resolves some merge issues with
    the mhi codebase.

If my assumption is correct when I propose that we revert commit
ce78ffa3ef16 for v5.14, AFAICS it's not really needed for v5.14 (commit
0092a1e3f763 is in -next, not in Linus' tree yet) and commit
ce78ffa3ef16 breaks ath11k. And the conflict between net-next and
char-misc-next can be then later fixed during the merge window.

Will this work for everyone? If no objections, I'll submit the revert to
Linus later today. We are getting really close to final v5.14 release so
not much time left to fix this.

Just to reiterate why the urgency: commit ce78ffa3ef16 broke ath11k in
v5.14-rc5, users have reported (and I have confirmed) that at least
QCA6390 support is broken but I suspect all Qualcomm Wi-Fi 6 devices
supported by ath11k are currently broken.  

No objection from me for reverting that, if it fixes the problems you
are seeing for 5.14-final.

The goal was for the mhi changes to go through the networking tree in
the first place, I don't see how this got out of sync.

If this is reverted, some help on how to resolve the merge issues it
will cause would be appreciated.

Also no objections here. FWIW I'm about to send the last PR for
networking, still waiting on BPF. You can send the revert to netdev, 
or directly to Linus as you prefer. LMK.