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authorNathan Chancellor <nathan@kernel.org>2023-06-08 10:01:57 -0700
committerAlex Deucher <alexander.deucher@amd.com>2023-06-09 12:49:06 -0400
commit4e70da985cef954cdf7813d651c067d2c602ea71 (patch)
tree62ea7b0b08681eb00561f8bff264e45d0590f953 /drivers/gpu/drm/amd/amdgpu/Makefile
parent9d65b1b4bcf3918164e17365eec169875eef8ee3 (diff)
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drm/amdgpu: Wrap -Wunused-but-set-variable in cc-option
-Wunused-but-set-variable was only supported in clang starting with 13.0.0, so earlier versions will emit a warning, which is turned into a hard error for the kernel to mirror GCC: error: unknown warning option '-Wunused-but-set-variable'; did you mean '-Wunused-const-variable'? [-Werror,-Wunknown-warning-option] The minimum supported version of clang for building the kernel is 11.0.0, so match the rest of the kernel and wrap -Wunused-but-set-variable in a cc-option call, so that it is only used when supported by the compiler. Closes: https://github.com/ClangBuiltLinux/linux/issues/1869 Fixes: 1b320ad3f5a8 ("drm/amd/amdgpu: introduce DRM_AMDGPU_WERROR") Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/Makefile')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index 7ee68b1bbfed..86b833085f19 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -40,7 +40,7 @@ ccflags-y := -I$(FULL_AMD_PATH)/include/asic_reg \
-I$(FULL_AMD_PATH)/amdkfd
subdir-ccflags-y := -Wextra
-subdir-ccflags-y += -Wunused-but-set-variable
+subdir-ccflags-y += $(call cc-option, -Wunused-but-set-variable)
subdir-ccflags-y += -Wno-unused-parameter
subdir-ccflags-y += -Wno-type-limits
subdir-ccflags-y += -Wno-sign-compare