linux-kernel - mainline build failure (new) for x86

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Message-ID: <YyWniVAqJclcbSqN@debian>
Date:   Sat, 17 Sep 2022 11:55:05 +0100
From:   "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@...il.com>
To:     Nicholas Kazlauskas <nicholas.kazlauskas@....com>,
        Alex Deucher <alexander.deucher@....com>
Cc:     Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        torvalds@...ux-foundation.org,
        Nathan Chancellor <nathan@...nel.org>
Subject: mainline build failure (new) for x86_64 allmodconfig with clang

Hi All,

The latest mainline kernel branch fails to build for x86_64 allmodconfig
with clang. The errors are:

drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn314/display_mode_vba_314.c:4020:6: error: stack frame size (2184) exceeds limit (2048) in 'dml314_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
void dml314_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)
     ^
1 error generated.


Note: This is a new error seen on top on a335366bad13 ("Merge tag 'gpio-fixes-for-v6.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux").
Previous reported clang build error is now fixed, thanks to Nathan.

And, it appears Nathan has already sent a fix for this:
https://github.com/intel-lab-lkp/linux/commit/4ecc45d7585ae2e05d622879ad97e13a7d8c595b
https://github.com/intel-lab-lkp/linux/commit/819976a950b497d7f10cd9a198a94c26a9005b30


--
Regards
Sudip