On 8/17/2021 11:07 AM, 'Nick Desaulniers' via Clang Built Linux wrote:
On Mon, Aug 16, 2021 at 7:05 PM Nathan Chancellor <nat...@kernel.org> wrote:
On 8/16/2021 5:21 PM, 'Nick Desaulniers' via Clang Built Linux wrote:
cc-option-yn can be replaced with cc-option. ie.
Checking for support:
ifeq ($(call cc-option-yn,$(FLAG)),y)
becomes:
ifneq ($(call cc-option,$(FLAG)),)
Checking for lack of support:
ifeq ($(call cc-option-yn,$(FLAG)),n)
becomes:
ifeq ($(call cc-option,$(FLAG)),)
This allows us to pursue removing cc-option-yn.
Cc: Vineet Gupta <vgu...@kernel.org>
Cc: linux-snps-arc@lists.infradead.org
Signed-off-by: Nick Desaulniers <ndesaulni...@google.com>
---
arch/arc/Makefile | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index c0d87ac2e221..8782a03f24a8 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -18,8 +18,7 @@ ifeq ($(CONFIG_ARC_TUNE_MCPU),"")
cflags-y += $(tune-mcpu-def-y)
else
tune-mcpu := $(shell echo $(CONFIG_ARC_TUNE_MCPU))
-tune-mcpu-ok := $(call cc-option-yn,
$(tune-mcpu))
-ifeq ($(tune-mcpu-ok),y)
+ifneq ($(call cc-option,$(tune-mcpu)),)
cflags-y += $(tune-mcpu)
Any reason not to just turn this into
cflags-y += $(call cc-option,$(tune-mcpu))
?
Yes, you'll need to pull up the source; the diff doesn't provide
enough context. tune-mcpu is used in the body of the else branch
hinted at by the diff. PTAL
Ah, fair enough. The warning is a little unconventional but oh well :)
Reviewed-by: Nathan Chancellor <nat...@kernel.org>
If $(tune-mcpu) is empty or invalid, nothing will be added to cflags-y.
else
# The flag provided by 'CONFIG_ARC_TUNE_MCPU' option isn't known by this
compiler
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