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kbuild: Stop using '-Qunused-arguments' with clang
This option masks all unused command line argument warnings, which can hide potential issues, such as an architecture Makefile adding an unsupported flag to KBUILD_AFLAGS or KBUILD_CFLAGS, which will cause all as-option and cc-options to silently fail due to -Werror with no indication as to why in the main kernel build. Remove this flag so that warnings of this nature can be caught early and obviously in a build. Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> Tested-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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@ -870,7 +870,6 @@ KBUILD_RUSTFLAGS-$(CONFIG_WERROR) += -Dwarnings
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KBUILD_RUSTFLAGS += $(KBUILD_RUSTFLAGS-y)
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ifdef CONFIG_CC_IS_CLANG
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KBUILD_CPPFLAGS += -Qunused-arguments
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# The kernel builds with '-std=gnu11' so use of GNU extensions is acceptable.
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KBUILD_CFLAGS += -Wno-gnu
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else
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