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SubjectRe: [PATCH] xtensa: Implement "current_stack_pointer"
On Wed, Feb 23, 2022 at 10:05 PM Kees Cook <keescook@chromium.org> wrote:
>
> To follow the existing per-arch conventions replace open-coded uses
> of asm "sp" as "current_stack_pointer". This will let it be used in
> non-arch places (like HARDENED_USERCOPY).
>
> Cc: Chris Zankel <chris@zankel.net>
> Cc: Max Filippov <jcmvbkbc@gmail.com>
> Cc: Marc Zyngier <maz@kernel.org>
> Cc: linux-xtensa@linux-xtensa.org
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
> arch/xtensa/Kconfig | 1 +
> arch/xtensa/include/asm/current.h | 2 ++
> arch/xtensa/include/asm/stacktrace.h | 2 +-
> arch/xtensa/kernel/irq.c | 3 +--
> 4 files changed, 5 insertions(+), 3 deletions(-)

Acked-by: Max Filippov <jcmvbkbc@gmail.com>

--
Thanks.
-- Max

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