The quilt patch titled Subject: drm/amdgpu: temporarily disable broken Clang builds due to blown stack-frame has been removed from the -mm tree. Its filename was drm-amdgpu-temporarily-disable-broken-clang-builds-due-to-blown-stack-frame.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------ From: Lee Jones lee@kernel.org Subject: drm/amdgpu: temporarily disable broken Clang builds due to blown stack-frame Date: Fri, 25 Nov 2022 12:07:49 +0000

Patch series "Fix a bunch of allmodconfig errors", v2.

Since b339ec9c229aa ("kbuild: Only default to -Werror if COMPILE_TEST") WERROR now defaults to COMPILE_TEST meaning that it's enabled for allmodconfig builds. This leads to some interesting build failures when using Clang, each resolved in this set.

With this set applied, I am able to obtain a successful allmodconfig Arm build.

This patch (of 2):

calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64) architectures built with Clang (all released versions), whereby the stack frame gets blown up to well over 5k. This would cause an immediate kernel panic on most architectures. We'll revert this when the following bug report has been resolved: https://github.com/llvm/llvm-project/issues/41896.

Link: https://lkml.kernel.org/r/20221125120750.3537134-1-lee@kernel.org Link: https://lkml.kernel.org/r/20221125120750.3537134-2-lee@kernel.org Signed-off-by: Lee Jones lee@kernel.org Suggested-by: Arnd Bergmann arnd@arndb.de Acked-by: Arnd Bergmann arnd@arndb.de Cc: Alex Deucher alexander.deucher@amd.com Cc: "Christian K��nig" christian.koenig@amd.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@gmail.com Cc: Harry Wentland harry.wentland@amd.com Cc: Lee Jones lee@kernel.org Cc: Leo Li sunpeng.li@amd.com Cc: Maarten Lankhorst maarten.lankhorst@linux.intel.com Cc: Maxime Ripard mripard@kernel.org Cc: Nathan Chancellor nathan@kernel.org Cc: Nick Desaulniers ndesaulniers@google.com Cc: "Pan, Xinhui" Xinhui.Pan@amd.com Cc: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Cc: Thomas Zimmermann tzimmermann@suse.de Cc: Tom Rix trix@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

drivers/gpu/drm/amd/display/Kconfig | 7 +++++++ 1 file changed, 7 insertions(+)

--- a/drivers/gpu/drm/amd/display/Kconfig~drm-amdgpu-temporarily-disable-broken-clang-builds-due-to-blown-stack-frame +++ a/drivers/gpu/drm/amd/display/Kconfig @@ -5,6 +5,7 @@ menu "Display Engine Configuration" config DRM_AMD_DC bool "AMD DC - Enable new display engine" default y + depends on BROKEN || !CC_IS_CLANG || X86_64 || SPARC64 || ARM64 select SND_HDA_COMPONENT if SND_HDA_CORE select DRM_AMD_DC_DCN if (X86 || PPC_LONG_DOUBLE_128) help @@ -12,6 +13,12 @@ config DRM_AMD_DC support for AMDGPU. This adds required support for Vega and Raven ASICs.

+ calculate_bandwidth() is presently broken on all !(X86_64 || SPARC64 || ARM64) + architectures built with Clang (all released versions), whereby the stack + frame gets blown up to well over 5k. This would cause an immediate kernel + panic on most architectures. We'll revert this when the following bug report + has been resolved: https://github.com/llvm/llvm-project/issues/41896. + config DRM_AMD_DC_DCN def_bool n help _

Patches currently in -mm which might be from lee@kernel.org are