Re: [PATCH 4.19 000/323] 4.19.291-rc1 review

[Daniel Díaz]

Hello!

On Wed, 9 Aug 2023 at 05:11, Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> This is the start of the stable review cycle for the 4.19.291 release.
> There are 323 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Fri, 11 Aug 2023 10:36:10 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.291-rc1.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
>
> -------------
> Pseudo-Shortlog of commits:
>
> Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
>     Linux 4.19.291-rc1
[...]
> Lyude Paul <lyude@xxxxxxxxxx>
>     drm/edid: Fix uninitialized variable in drm_cvt_modes()
[...]

Two new warnings are introduced on x86_64 with GCC-8 (defconfig):

-----8<-----
drivers/gpu/drm/drm_edid.o: warning: objtool:
drm_mode_std.isra.34()+0xbc: return with modified stack frame
drivers/gpu/drm/drm_edid.o: warning: objtool:
drm_mode_std.isra.34()+0x0: stack state mismatch: cfa1=7+112 cfa2=7+8
----->8-----

Bisection points to the quoted commit ("drm/edid: Fix uninitialized
variable in drm_cvt_modes()"), 991fcb77f490 upstream. Reverting makes
the warnings disappear.

Greetings!

Daniel Díaz
daniel.diaz@xxxxxxxxxx