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From: "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@gmail.com>
To: Nathan Chancellor <nathan@kernel.org>
Cc: clang-built-linux <llvm@lists.linux.dev>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"Pan, Xinhui" <Xinhui.Pan@amd.com>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org,
	"Linus Torvalds" <torvalds@linux-foundation.org>
Subject: mainline build failure for x86_64 allmodconfig with clang
Date: Thu, 4 Aug 2022 19:36:57 +0100	[thread overview]
Message-ID: <YuwRyQYPCb1FD+mr@debian> (raw)

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/dcn30/display_mode_vba_30.c:3596:6: error: stack frame size (2216) exceeds limit (2048) in 'dml30_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)

drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/display_mode_vba_31.c:3908:6: error: stack frame size (2184) exceeds limit (2048) in 'dml31_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)

drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:1726:6: error: stack frame size (2176) exceeds limit (2048) in 'dml32_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than]
void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib)

git bisect points to 3876a8b5e241 ("drm/amd/display: Enable building new display engine with KCOV enabled").

My last good build for clang was with e2b542100719 ("Merge tag 'flexible-array-transformations-UAPI-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux").

I will be happy to test any patch or provide any extra log if needed.


--
Regards
Sudip

             reply	other threads:[~2022-08-04 18:38 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-04 18:36 Sudip Mukherjee (Codethink) [this message]
2022-08-04 18:52 ` mainline build failure for x86_64 allmodconfig with clang Linus Torvalds
2022-08-04 19:24   ` Arnd Bergmann
2022-08-04 20:43     ` Nathan Chancellor
2022-08-04 21:59       ` Linus Torvalds
2022-08-04 22:43         ` Nathan Chancellor
2022-08-05  9:46       ` David Laight
2022-08-05 15:32       ` Harry Wentland
2022-08-05 16:16         ` Arnd Bergmann
2022-08-05 18:02           ` Nathan Chancellor
2022-08-05 19:32             ` Arnd Bergmann
2022-08-07 17:36               ` David Laight
2022-08-07 17:55                 ` Linus Torvalds
2022-08-18 15:59               ` Nathan Chancellor
2022-08-25 22:34                 ` Nathan Chancellor
2022-08-26 14:31                   ` Alex Deucher
2022-08-30 20:38                     ` Nathan Chancellor

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