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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 <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Fastabend 2017-08-15 22:30:47 -07:00 committed by David S. Miller
parent d369bcaf7d
commit f26de110f4
1 changed files with 4 additions and 6 deletions
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10
net/strparser/strparser.c
View File

@ -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;
}