On Tue, Oct 30, 2018 at 9:36 PM Michael Ellerman <mpe@xxxxxxxxxxxxxx> wrote: > > 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? Right. > 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. OK, will do respin if you prefer ifdef/ifndef style. > Still this patch is fine as is: > > Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc) > > cheers -- Best Regards Masahiro Yamada