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Diffstat (limited to 'net/ipv4/udp.c')
-rw-r--r--net/ipv4/udp.c22
1 files changed, 4 insertions, 18 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 2422a5f..223abaa 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);
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