From: Nathan Chancellor Date: Thu, 8 Jun 2023 17:01:57 +0000 (-0700) Subject: drm/amdgpu: Wrap -Wunused-but-set-variable in cc-option X-Git-Tag: v6.5-rc1~153^2~7^2~7 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4e70da985cef954cdf7813d651c067d2c602ea71;p=thirdparty%2Fkernel%2Flinux.git 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 Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile index 7ee68b1bbfedf..86b833085f194 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