Hello,

boris.brezillon@collabora.com wrote on Thu, 2 Dec 2021 14:19:58 +0100:

On Thu, 2 Dec 2021 13:28:46 +0100
Anders Roxell [off-list ref] wrote:

quoted

On Tue, 30 Nov 2021 at 18:01, Naresh Kamboju [off-list ref] wrote:  

quoted

[Please ignore this email if it is already reported]

Regression found on qemu_arm64.
Following kernel warnings reported on Linux next-20211130 while booting.    

I bisected down to 1ebe2e5f9d68 ("block: remove GENHD_FL_EXT_DEVT")

and when I reverted 1ebe2e5f9d68 ("block: remove GENHD_FL_EXT_DEVT") and the
3 releated patches so patch 1ebe2e5f9d68 was reverted cleanly I
managed to boot without
a warning.

Related patches from next-20211130:
9f18db572c97 ("block: don't set GENHD_FL_NO_PART for hidden gendisks")
430cc5d3ab4d ("block: cleanup the GENHD_FL_* definitions")
a4561f9fccc5 ("sr: set GENHD_FL_REMOVABLE earlier")

With this said, if I revert 9d6abd489e70 ("mtd: core: protect access
to MTD devices while in suspend")
I didn't see the warning either.  

I think 9d6abd489e70 ("mtd: core: protect access to MTD devices while
in suspend") is at fault here. Miquel, would you mind
reverting/dropping the "mtd: core: protect access to mtd devices while
in  suspend" series?

FYI I've just dropped the entire series. The change will probably be
effective in linux-next starting from next Monday.

quoted

Any idea what can be wrong here or what a fix could be?

Only apply this patch from Geert
https://lore.kernel.org/lkml/c26dfdf9ce56e92d23530a09db386b283e62845d.1638289204.git.geert+renesas@glider.be/ (local)
makes the warning go away too.

Cheers,
Anders  

Thanks,
Miquèl