[PATCH 3/9] powerpc/bpf: Remove unused SEEN_STACK

[Song Liu]

On Fri, Oct 1, 2021 at 2:16 PM Naveen N. Rao
<naveen.n.rao at linux.vnet.ibm.com> wrote:
>
> From: Ravi Bangoria <ravi.bangoria at linux.ibm.com>
>
> SEEN_STACK is unused on PowerPC. Remove it. Also, have
> SEEN_TAILCALL use 0x40000000.
>
> Signed-off-by: Ravi Bangoria <ravi.bangoria at linux.ibm.com>
> Reviewed-by: Christophe Leroy <christophe.leroy at csgroup.eu>

Acked-by: Song Liu <songliubraving at fb.com>

> ---
>  arch/powerpc/net/bpf_jit.h | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
> index 7e9b978b768ed9..89bd744c2bffd4 100644
> --- a/arch/powerpc/net/bpf_jit.h
> +++ b/arch/powerpc/net/bpf_jit.h
> @@ -125,8 +125,7 @@
>  #define COND_LE                (CR0_GT | COND_CMP_FALSE)
>
>  #define SEEN_FUNC      0x20000000 /* might call external helpers */
> -#define SEEN_STACK     0x40000000 /* uses BPF stack */
> -#define SEEN_TAILCALL  0x80000000 /* uses tail calls */
> +#define SEEN_TAILCALL  0x40000000 /* uses tail calls */
>
>  #define SEEN_VREG_MASK 0x1ff80000 /* Volatile registers r3-r12 */
>  #define SEEN_NVREG_MASK        0x0003ffff /* Non volatile registers r14-r31 */
> --
> 2.33.0
>