[PATCH AUTOSEL 4.9 01/27] Makefile: disallow data races on gcc-10 as well

[Sasha Levin]

From: Sergei Trofimovich <slyfox@xxxxxxxxxx>

[ Upstream commit b1112139a103b4b1101d0d2d72931f2d33d8c978 ]

gcc-10 will rename --param=allow-store-data-races=0
to -fno-allow-store-data-races.

The flag change happened at https://gcc.gnu.org/PR92046.

Signed-off-by: Sergei Trofimovich <slyfox@xxxxxxxxxx>
Acked-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Makefile b/Makefile
index 2a923301987e5..4ff8ea7d2835e 100644
--- a/Makefile
+++ b/Makefile
@@ -672,6 +672,7 @@ KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0409, \
 
 # Tell gcc to never replace conditional load with a non-conditional one
 KBUILD_CFLAGS	+= $(call cc-option,--param=allow-store-data-races=0)
+KBUILD_CFLAGS	+= $(call cc-option,-fno-allow-store-data-races)
 
 # check for 'asm goto'
 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)
-- 
2.20.1