Re: [PATCH v2 3/5] arm64: vdso: Don't use gcc plugins for building vgettimeofday.c

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On Wed, Jun 24, 2020 at 03:33:28PM +0300, Alexander Popov wrote:
> Don't use gcc plugins for building arch/arm64/kernel/vdso/vgettimeofday.c
> to avoid unneeded instrumentation.
> 
> Signed-off-by: Alexander Popov <alex.popov@xxxxxxxxx>
> ---
>  arch/arm64/kernel/vdso/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile
> index 556d424c6f52..0f1ad63b3326 100644
> --- a/arch/arm64/kernel/vdso/Makefile
> +++ b/arch/arm64/kernel/vdso/Makefile
> @@ -29,7 +29,7 @@ ldflags-y := -shared -nostdlib -soname=linux-vdso.so.1 --hash-style=sysv \
>  ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18
>  ccflags-y += -DDISABLE_BRANCH_PROFILING
>  
> -CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS)
> +CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS) $(GCC_PLUGINS_CFLAGS)
>  KBUILD_CFLAGS			+= $(DISABLE_LTO)
>  KASAN_SANITIZE			:= n
>  UBSAN_SANITIZE			:= n
> -- 
> 2.25.4

I'll pick this one up as a fix for 5.8, please let me know if that's a
problem.

Will



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