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sock: sockc cookie initializer

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Initialize the cookie in one location to reduce code duplication and
avoid bugs from inconsistent initialization, such as that fixed in
commit 9887cba199 ("ip: limit use of gso_size to udp").

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Willem de Bruijn 2018-07-06 10:12:56 -04:00 • committed by David S. Miller
parent b515430ac9
commit 657a066702
3 changed files with 10 additions and 7 deletions
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6
include/net/sock.h
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@ -1600,6 +1600,12 @@ struct sockcm_cookie {
u16 tsflags;
};
static inline void sockcm_init(struct sockcm_cookie *sockc,
const struct sock *sk)
{
*sockc = (struct sockcm_cookie) { .tsflags = sk->sk_tsflags };
}
int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg,
struct sockcm_cookie *sockc);
int sock_cmsg_send(struct sock *sk, struct msghdr *msg,