diff options
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/net/bpf_jit_comp.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c index 218b6b23c378..01fe9946d388 100644 --- a/arch/sparc/net/bpf_jit_comp.c +++ b/arch/sparc/net/bpf_jit_comp.c | |||
| @@ -497,9 +497,20 @@ void bpf_jit_compile(struct sk_filter *fp) | |||
| 497 | case BPF_S_ALU_MUL_K: /* A *= K */ | 497 | case BPF_S_ALU_MUL_K: /* A *= K */ |
| 498 | emit_alu_K(MUL, K); | 498 | emit_alu_K(MUL, K); |
| 499 | break; | 499 | break; |
| 500 | case BPF_S_ALU_DIV_K: /* A /= K */ | 500 | case BPF_S_ALU_DIV_K: /* A /= K with K != 0*/ |
| 501 | emit_alu_K(MUL, K); | 501 | if (K == 1) |
| 502 | emit_read_y(r_A); | 502 | break; |
| 503 | emit_write_y(G0); | ||
| 504 | #ifdef CONFIG_SPARC32 | ||
| 505 | /* The Sparc v8 architecture requires | ||
| 506 | * three instructions between a %y | ||
| 507 | * register write and the first use. | ||
| 508 | */ | ||
| 509 | emit_nop(); | ||
| 510 | emit_nop(); | ||
| 511 | emit_nop(); | ||
| 512 | #endif | ||
| 513 | emit_alu_K(DIV, K); | ||
| 503 | break; | 514 | break; |
| 504 | case BPF_S_ALU_DIV_X: /* A /= X; */ | 515 | case BPF_S_ALU_DIV_X: /* A /= X; */ |
| 505 | emit_cmpi(r_X, 0); | 516 | emit_cmpi(r_X, 0); |