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kbuild: replace cc-name test with CONFIG_CC_IS_CLANG

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Evaluating cc-name invokes the compiler every time even when you are
not compiling anything, like 'make help'. This is not efficient.

The compiler type has been already detected in the Kconfig stage.
Use CONFIG_CC_IS_CLANG, instead.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Paul Burton <paul.burton@mips.com> (MIPS)
Acked-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Masahiro Yamada 2018-10-30 22:26:33 +09:00
parent 2cd3faf87d
commit 076f421da5
5 changed files with 6 additions and 6 deletions
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2
scripts/Makefile.extrawarn
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@ -64,7 +64,7 @@ endif
KBUILD_CFLAGS += $(warning)
else
ifeq ($(cc-name),clang)
ifdef CONFIG_CC_IS_CLANG
KBUILD_CFLAGS += $(call cc-disable-warning, initializer-overrides)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-value)
KBUILD_CFLAGS += $(call cc-disable-warning, format)