On Wed, Mar 09, 2022 at 01:53:50PM -0800, Nick Desaulniers wrote:
> On Wed, Mar 9, 2022 at 11:19 AM Nathan Chancellor <nathan@xxxxxxxxxx> wrote:
> > Avoid this problem by just avoiding the CONFIG_LTO=y __READ_ONCE() block
> > in asm/rwonce.h with assembly files, as nothing in that block is useful
> > to assembly files, which allows ARM_SMCCC_ARCH_WORKAROUND_3 to be
> > properly expanded with CONFIG_LTO=y builds.
> >
> > Cc: stable@xxxxxxxxxxxxxxx
> > Fixes: e35123d83ee3 ("arm64: lto: Strengthen READ_ONCE() to acquire when CONFIG_LTO=y")
> > Link: https://lore.kernel.org/r/20220309155716.3988480-1-maz@xxxxxxxxxx/
> > Reported-by: Marc Zyngier <maz@xxxxxxxxxx>
> > Acked-by: James Morse <james.morse@xxxxxxx>
> > Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
>
> Thanks for taking point on all of the BHB fallout.
>
> Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Thanks for the review and testing. Unfortunately I've just sent the pull
request to Linus, so didn't include your tags.
--
Catalin
