MIPS: bpf: Add SEEN_SKB to flags when looking for the PKT_TYPE

The SKF_AD_PKTTYPE uses the skb pointer so make sure it's in the
flags so it will be initialized in time.

Signed-off-by: Markos Chandras <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: [email protected]
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/7125/
Signed-off-by: Ralf Baechle <[email protected]>

diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c
index fe5041bdc6fb2b9304f3ee9eda5819cdf25c09c9..8cae27af03dac7a4b3f2d777e9f42c0c29f88d71 100644 (file)
--- a/arch/mips/net/bpf_jit.c
+++ b/arch/mips/net/bpf_jit.c
@@ -1322,6 +1322,8 @@ jmp_cmp:
                                emit_andi(r_A, r_s0, VLAN_TAG_PRESENT, ctx);
                        break;
                case BPF_ANC | SKF_AD_PKTTYPE:
+                       ctx->flags |= SEEN_SKB;
+
                        off = pkt_type_offset();
 
                        if (off < 0)