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Diffstat (limited to 'arch/x86/net/bpf_jit_comp.c')
-rw-r--r--arch/x86/net/bpf_jit_comp.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 7c1b765ecc5..5671752f8d9 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -475,8 +475,10 @@ void bpf_jit_compile(struct sk_filter *fp)
475 case BPF_S_LD_W_ABS: 475 case BPF_S_LD_W_ABS:
476 func = sk_load_word; 476 func = sk_load_word;
477common_load: seen |= SEEN_DATAREF; 477common_load: seen |= SEEN_DATAREF;
478 if ((int)K < 0) 478 if ((int)K < 0) {
479 /* Abort the JIT because __load_pointer() is needed. */
479 goto out; 480 goto out;
481 }
480 t_offset = func - (image + addrs[i]); 482 t_offset = func - (image + addrs[i]);
481 EMIT1_off32(0xbe, K); /* mov imm32,%esi */ 483 EMIT1_off32(0xbe, K); /* mov imm32,%esi */
482 EMIT1_off32(0xe8, t_offset); /* call */ 484 EMIT1_off32(0xe8, t_offset); /* call */
@@ -489,14 +491,8 @@ common_load: seen |= SEEN_DATAREF;
489 goto common_load; 491 goto common_load;
490 case BPF_S_LDX_B_MSH: 492 case BPF_S_LDX_B_MSH:
491 if ((int)K < 0) { 493 if ((int)K < 0) {
492 if (pc_ret0 > 0) { 494 /* Abort the JIT because __load_pointer() is needed. */
493 /* addrs[pc_ret0 - 1] is the start address */ 495 goto out;
494 EMIT_JMP(addrs[pc_ret0 - 1] - addrs[i]);
495 break;
496 }
497 CLEAR_A();
498 EMIT_JMP(cleanup_addr - addrs[i]);
499 break;
500 } 496 }
501 seen |= SEEN_DATAREF | SEEN_XREG; 497 seen |= SEEN_DATAREF | SEEN_XREG;
502 t_offset = sk_load_byte_msh - (image + addrs[i]); 498 t_offset = sk_load_byte_msh - (image + addrs[i]);