[PATCH net-next 8/8] PPC: bpf_jit_comp: add JMP_NEQ instructions for BPF JIT
From: Daniel Borkmann <hidden>
Date: 2012-12-31 14:16:14
Subsystem:
bpf jit for powerpc (32-bit and 64-bit), bpf [general] (safe dynamic programs and tools), linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Hari Bathini, Christophe Leroy, Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
This patch is a follow-up for patch "net: bpf: add neq jump operations to bpf machine" that implements BPF PowerPC JIT parts for the BPF JMP_NEQ operation. Cc: Matt Evans <redacted> Signed-off-by: Daniel Borkmann <redacted> --- arch/powerpc/net/bpf_jit_comp.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index 46b4d21..4b9ee59 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c@@ -496,6 +496,8 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, case BPF_S_JMP_JEQ_X: true_cond = COND_EQ; goto cond_branch; + case BPF_S_JMP_JNEQ_K: + case BPF_S_JMP_JNEQ_X: case BPF_S_JMP_JSET_K: case BPF_S_JMP_JSET_X: true_cond = COND_NE;
@@ -514,6 +516,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, case BPF_S_JMP_JLT_X: case BPF_S_JMP_JLE_X: case BPF_S_JMP_JEQ_X: + case BPF_S_JMP_JNEQ_X: ctx->seen |= SEEN_XREG; PPC_CMPLW(r_A, r_X); break;
@@ -522,6 +525,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, PPC_AND_DOT(r_scratch1, r_A, r_X); break; case BPF_S_JMP_JEQ_K: + case BPF_S_JMP_JNEQ_K: case BPF_S_JMP_JGT_K: case BPF_S_JMP_JGE_K: case BPF_S_JMP_JLT_K:
--
1.7.11.7