Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> writes: > diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile > index 17be664..338e827 100644 > --- a/arch/powerpc/Makefile > +++ b/arch/powerpc/Makefile > @@ -96,7 +96,7 @@ aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1) > aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2 > endif > > -ifneq ($(cc-name),clang) > +ifneq ($(CONFIG_CC_IS_CLANG),y) > cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mno-strict-align > endif > > @@ -175,7 +175,7 @@ endif > # Work around gcc code-gen bugs with -pg / -fno-omit-frame-pointer in gcc <= 4.8 > # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44199 > # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52828 > -ifneq ($(cc-name),clang) > +ifneq ($(CONFIG_CC_IS_CLANG),y) > CC_FLAGS_FTRACE += $(call cc-ifversion, -lt, 0409, -mno-sched-epilog) > endif > endif Does this behave like other CONFIG variables, ie. it will not be defined when it's false? And if so can't we use ifdef/ifndef? eg: ifndef CONFIG_CC_IS_CLANG CC_FLAGS_FTRACE += $(call cc-ifversion, -lt, 0409, -mno-sched-epilog) That reads cleaner to me. Still this patch is fine as is: Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc) cheers