kasan: Makefile: shut up warnings if CONFIG_COMPILE_TEST=y
It might be annoying to constantly see this: scripts/Makefile.kasan:16: Cannot use CONFIG_KASAN: -fsanitize=kernel-address is not supported by compiler while performing allmodconfig/allyesconfig build tests. Disable this warning if CONFIG_COMPILE_TEST=y. Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -13,12 +13,16 @@ CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \
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--param asan-instrumentation-with-call-threshold=$(call_threshold))
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ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),)
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ifneq ($(CONFIG_COMPILE_TEST),y)
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$(warning Cannot use CONFIG_KASAN: \
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-fsanitize=kernel-address is not supported by compiler)
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endif
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else
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ifeq ($(CFLAGS_KASAN),)
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$(warning CONFIG_KASAN: compiler does not support all options.\
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Trying minimal configuration)
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ifneq ($(CONFIG_COMPILE_TEST),y)
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$(warning CONFIG_KASAN: compiler does not support all options.\
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Trying minimal configuration)
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endif
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CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL)
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endif
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endif
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