diff options
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 2422a5f7195d..223abaa72bc5 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -86,6 +86,7 @@ #include <linux/module.h> #include <linux/socket.h> #include <linux/sockios.h> +#include <linux/igmp.h> #include <linux/in.h> #include <linux/errno.h> #include <linux/timer.h> @@ -846,20 +847,7 @@ out: csum_copy_err: UDP_INC_STATS_BH(UDP_MIB_INERRORS); - /* Clear queue. */ - if (flags&MSG_PEEK) { - int clear = 0; - spin_lock_bh(&sk->sk_receive_queue.lock); - if (skb == skb_peek(&sk->sk_receive_queue)) { - __skb_unlink(skb, &sk->sk_receive_queue); - clear = 1; - } - spin_unlock_bh(&sk->sk_receive_queue.lock); - if (clear) - kfree_skb(skb); - } - - skb_free_datagram(sk, skb); + skb_kill_datagram(sk, skb, flags); if (noblock) return -EAGAIN; @@ -1094,7 +1082,7 @@ static int udp_v4_mcast_deliver(struct sk_buff *skb, struct udphdr *uh, * Otherwise, csum completion requires chacksumming packet body, * including udp header and folding it to skb->csum. */ -static int udp_checksum_init(struct sk_buff *skb, struct udphdr *uh, +static void udp_checksum_init(struct sk_buff *skb, struct udphdr *uh, unsigned short ulen, u32 saddr, u32 daddr) { if (uh->check == 0) { @@ -1108,7 +1096,6 @@ static int udp_checksum_init(struct sk_buff *skb, struct udphdr *uh, /* Probably, we should checksum udp header (it should be in cache * in any case) and data in tiny packets (< rx copybreak). */ - return 0; } /* @@ -1141,8 +1128,7 @@ int udp_rcv(struct sk_buff *skb) if (pskb_trim_rcsum(skb, ulen)) goto short_packet; - if (udp_checksum_init(skb, uh, ulen, saddr, daddr) < 0) - goto csum_error; + udp_checksum_init(skb, uh, ulen, saddr, daddr); if(rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST)) return udp_v4_mcast_deliver(skb, uh, saddr, daddr); |