From f26de110f4f1d8d2490d1f9f003d5abbde030f03 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Tue, 15 Aug 2017 22:30:47 -0700 Subject: [PATCH] net: early init support for strparser It is useful to allow strparser to init sockets before the read_sock callback has been established. Signed-off-by: John Fastabend Signed-off-by: David S. Miller --- net/strparser/strparser.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c index 0d18fbc6f870..434aa6637a52 100644 --- a/net/strparser/strparser.c +++ b/net/strparser/strparser.c @@ -373,6 +373,9 @@ static int strp_read_sock(struct strparser *strp) struct socket *sock = strp->sk->sk_socket; read_descriptor_t desc; + if (unlikely(!sock || !sock->ops || !sock->ops->read_sock)) + return -EBUSY; + desc.arg.data = strp; desc.error = 0; desc.count = 1; /* give more than one skb per call */ @@ -486,12 +489,7 @@ int strp_init(struct strparser *strp, struct sock *sk, * The upper layer calls strp_process for each skb to be parsed. */ - if (sk) { - struct socket *sock = sk->sk_socket; - - if (!sock->ops->read_sock || !sock->ops->peek_len) - return -EAFNOSUPPORT; - } else { + if (!sk) { if (!cb->lock || !cb->unlock) return -EINVAL; } -- 2.20.1