diff options
Diffstat (limited to 'samples/bpf/sockex3_kern.c')
| -rw-r--r-- | samples/bpf/sockex3_kern.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/samples/bpf/sockex3_kern.c b/samples/bpf/sockex3_kern.c index cab9cca0b8eb..b363503357e5 100644 --- a/samples/bpf/sockex3_kern.c +++ b/samples/bpf/sockex3_kern.c @@ -31,11 +31,13 @@ struct { #define PARSE_IP 3 #define PARSE_IPV6 4 -/* protocol dispatch routine. - * It tail-calls next BPF program depending on eth proto - * Note, we could have used: - * bpf_tail_call(skb, &jmp_table, proto); - * but it would need large prog_array +/* Protocol dispatch routine. It tail-calls next BPF program depending + * on eth proto. Note, we could have used ... + * + * bpf_tail_call(skb, &jmp_table, proto); + * + * ... but it would need large prog_array and cannot be optimised given + * the map key is not static. */ static inline void parse_eth_proto(struct __sk_buff *skb, u32 proto) { |