diff mbox series

[v2,07/10] powerpc/bpf ppc32: Fix ALU32 BPF_ARSH operation

Message ID 6d24c1f9e79b6f61f5135eaf2ea1e8bcd4dac87b.1633464148.git.naveen.n.rao@linux.vnet.ibm.com (mailing list archive)
State Awaiting Upstream
Delegated to: BPF
Headers show
Series powerpc/bpf: Various fixes | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Naveen N. Rao Oct. 5, 2021, 8:25 p.m. UTC
Correct the destination register used for ALU32 BPF_ARSH operation.

Fixes: 51c66ad849a703 ("powerpc/bpf: Implement extended BPF on PPC32")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
---
 arch/powerpc/net/bpf_jit_comp32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Christophe Leroy Oct. 6, 2021, 4:56 a.m. UTC | #1
Le 05/10/2021 à 22:25, Naveen N. Rao a écrit :
> Correct the destination register used for ALU32 BPF_ARSH operation.
> 
> Fixes: 51c66ad849a703 ("powerpc/bpf: Implement extended BPF on PPC32")
> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>

Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>

> ---
>   arch/powerpc/net/bpf_jit_comp32.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/powerpc/net/bpf_jit_comp32.c b/arch/powerpc/net/bpf_jit_comp32.c
> index a74d52204f8da2..519ecb9ab67266 100644
> --- a/arch/powerpc/net/bpf_jit_comp32.c
> +++ b/arch/powerpc/net/bpf_jit_comp32.c
> @@ -625,7 +625,7 @@ int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, struct codegen_context *
>   			EMIT(PPC_RAW_LI(dst_reg_h, 0));
>   			break;
>   		case BPF_ALU | BPF_ARSH | BPF_X: /* (s32) dst >>= src */
> -			EMIT(PPC_RAW_SRAW(dst_reg_h, dst_reg, src_reg));
> +			EMIT(PPC_RAW_SRAW(dst_reg, dst_reg, src_reg));
>   			break;
>   		case BPF_ALU64 | BPF_ARSH | BPF_X: /* (s64) dst >>= src */
>   			bpf_set_seen_register(ctx, tmp_reg);
>
diff mbox series

Patch

diff --git a/arch/powerpc/net/bpf_jit_comp32.c b/arch/powerpc/net/bpf_jit_comp32.c
index a74d52204f8da2..519ecb9ab67266 100644
--- a/arch/powerpc/net/bpf_jit_comp32.c
+++ b/arch/powerpc/net/bpf_jit_comp32.c
@@ -625,7 +625,7 @@  int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, struct codegen_context *
 			EMIT(PPC_RAW_LI(dst_reg_h, 0));
 			break;
 		case BPF_ALU | BPF_ARSH | BPF_X: /* (s32) dst >>= src */
-			EMIT(PPC_RAW_SRAW(dst_reg_h, dst_reg, src_reg));
+			EMIT(PPC_RAW_SRAW(dst_reg, dst_reg, src_reg));
 			break;
 		case BPF_ALU64 | BPF_ARSH | BPF_X: /* (s64) dst >>= src */
 			bpf_set_seen_register(ctx, tmp_reg);