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authorDavid S. Miller <davem@davemloft.net>2016-01-06 22:54:18 -0500
committerDavid S. Miller <davem@davemloft.net>2016-01-06 22:54:18 -0500
commit9e0efaf6b41bf22c2eb81258fc2a6f1538a643e5 (patch)
treee2daa5fb47f707f44b6b7e9da82a6d8017af3f8c /arch/sparc
parentc7f5d105495a38ed09e70d825f75d9d7d5407264 (diff)
parent51cb67c0b0fcb91581b15bd2e85f29af4d4b2df6 (diff)
downloadblackbird-op-linux-9e0efaf6b41bf22c2eb81258fc2a6f1538a643e5.tar.gz
blackbird-op-linux-9e0efaf6b41bf22c2eb81258fc2a6f1538a643e5.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/net/bpf_jit_comp.c17
1 files changed, 2 insertions, 15 deletions
diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c
index 22564f5f2364..3e6e05a7c4c2 100644
--- a/arch/sparc/net/bpf_jit_comp.c
+++ b/arch/sparc/net/bpf_jit_comp.c
@@ -420,22 +420,9 @@ void bpf_jit_compile(struct bpf_prog *fp)
}
emit_reg_move(O7, r_saved_O7);
- switch (filter[0].code) {
- case BPF_RET | BPF_K:
- case BPF_LD | BPF_W | BPF_LEN:
- case BPF_LD | BPF_W | BPF_ABS:
- case BPF_LD | BPF_H | BPF_ABS:
- case BPF_LD | BPF_B | BPF_ABS:
- /* The first instruction sets the A register (or is
- * a "RET 'constant'")
- */
- break;
- default:
- /* Make sure we dont leak kernel information to the
- * user.
- */
+ /* Make sure we dont leak kernel information to the user. */
+ if (bpf_needs_clear_a(&filter[0]))
emit_clear(r_A); /* A = 0 */
- }
for (i = 0; i < flen; i++) {
unsigned int K = filter[i].k;
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