diff options
| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-11-28 04:27:47 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-11-29 03:58:24 +0400 |
| commit | 690e99c4ba73fc18643b38fa032022b8758ad4d3 (patch) | |
| tree | 73745636f1b9cab69eb2738f84f4b0d4cb36db5f /net | |
| parent | 8b7ff200010600ef7cd9d002f9f8f97edfc7578e (diff) | |
| download | linux-690e99c4ba73fc18643b38fa032022b8758ad4d3.tar.xz | |
tcp: tcp_sendmsg() wrong access to sk_route_caps
Now sk_route_caps is u64, its dangerous to use an integer to store
result of an AND operator. It wont work if NETIF_F_SG is moved on the
upper part of u64.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 50c359645665..ecbc89a0436b 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -891,7 +891,7 @@ EXPORT_SYMBOL(tcp_sendpage); #define TCP_PAGE(sk) (sk->sk_sndmsg_page) #define TCP_OFF(sk) (sk->sk_sndmsg_off) -static inline int select_size(const struct sock *sk, int sg) +static inline int select_size(const struct sock *sk, bool sg) { const struct tcp_sock *tp = tcp_sk(sk); int tmp = tp->mss_cache; @@ -917,9 +917,9 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, struct iovec *iov; struct tcp_sock *tp = tcp_sk(sk); struct sk_buff *skb; - int iovlen, flags; + int iovlen, flags, err, copied; int mss_now, size_goal; - int sg, err, copied; + bool sg; long timeo; lock_sock(sk); @@ -946,7 +946,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if (sk->sk_err || (sk->sk_shutdown & SEND_SHUTDOWN)) goto out_err; - sg = sk->sk_route_caps & NETIF_F_SG; + sg = !!(sk->sk_route_caps & NETIF_F_SG); while (--iovlen >= 0) { size_t seglen = iov->iov_len; |