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authorNathan Chancellor <nathan@kernel.org>2022-01-26 01:19:25 +0300
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2022-02-07 20:30:12 +0300
commitd49fc69293f2022785f6ee1c3c7d565271abe393 (patch)
tree4541fffa1e8775b0db68d7ffc6f1cd051802569c /arch/mips/loongson2ef
parent0e96ea5c3eb5904e5dc2f3d414e2aba361933b87 (diff)
downloadlinux-d49fc69293f2022785f6ee1c3c7d565271abe393.tar.xz
MIPS: Loongson{2ef,64}: Wrap -mno-branch-likely with cc-option
This flag is not supported by clang, which results in a warning: clang-14: warning: argument unused during compilation: '-mno-branch-likely' [-Wunused-command-line-argument] This breaks cc-option, which adds -Werror to make this warning fatal and catch flags that are not supported. Wrap this flag in cc-option so that it does not cause cc-option to fail, which can cause randconfigs to be really noisy, due to warnings not getting disabled that should be. Additionally, move the cc-option check to Kconfig so that the check is done at configuration time, rather than build time, as builds with no configuration change will be quicker because the cc-option call will not need to happen in those instances. Suggested-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips/loongson2ef')
-rw-r--r--arch/mips/loongson2ef/Platform3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/loongson2ef/Platform b/arch/mips/loongson2ef/Platform
index 50e659aca543..eebabf9df6ac 100644
--- a/arch/mips/loongson2ef/Platform
+++ b/arch/mips/loongson2ef/Platform
@@ -41,6 +41,7 @@ cflags-y += $(call cc-option,-mno-loongson-mmi)
# Loongson Machines' Support
#
-cflags-$(CONFIG_MACH_LOONGSON2EF) += -I$(srctree)/arch/mips/include/asm/mach-loongson2ef -mno-branch-likely
+cflags-$(CONFIG_MACH_LOONGSON2EF) += -I$(srctree)/arch/mips/include/asm/mach-loongson2ef
+cflags-$(CONFIG_CC_HAS_MNO_BRANCH_LIKELY) += -mno-branch-likely
load-$(CONFIG_LEMOTE_FULOONG2E) += 0xffffffff80100000
load-$(CONFIG_LEMOTE_MACH2F) += 0xffffffff80200000