From: Andrey Ryabinin a.ryabinin@samsung.com
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 (cherry picked from commit 6e54abac1b8e0b7febffdbad37b605daef1cfcff) Signed-off-by: Alex Shi alex.shi@linaro.org --- scripts/Makefile.kasan | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan index 631619b..3f874d2 100644 --- a/scripts/Makefile.kasan +++ b/scripts/Makefile.kasan @@ -13,12 +13,16 @@ CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \ --param asan-instrumentation-with-call-threshold=$(call_threshold))
ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),) + ifneq ($(CONFIG_COMPILE_TEST),y) $(warning Cannot use CONFIG_KASAN: \ -fsanitize=kernel-address is not supported by compiler) + endif else ifeq ($(CFLAGS_KASAN),) - $(warning CONFIG_KASAN: compiler does not support all options.\ - Trying minimal configuration) + ifneq ($(CONFIG_COMPILE_TEST),y) + $(warning CONFIG_KASAN: compiler does not support all options.\ + Trying minimal configuration) + endif CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL) endif endif