From 3e414096429d55fbc8116171bba3487647bbe638 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Mon, 3 Jul 2000 21:46:06 +0000
Subject: Merge with Linux 2.4.0-test3-pre2.

---
 net/sunrpc/svcsock.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'net/sunrpc/svcsock.c')

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index e0a13d725..f0f714ff0 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -32,6 +32,7 @@
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
 #include <net/sock.h>
+#include <net/checksum.h>
 #include <net/ip.h>
 #include <asm/uaccess.h>
 
@@ -371,6 +372,16 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
 		dprintk("svc: recvfrom returned error %d\n", -err);
 	}
 
+	if (skb->ip_summed != CHECKSUM_UNNECESSARY) {
+		unsigned int csum = skb->csum;
+		csum = csum_partial(skb->h.raw, skb->len, csum);
+		if ((unsigned short)csum_fold(csum)) {
+			skb_free_datagram(svsk->sk_sk, skb);
+			svc_sock_received(svsk, 0);
+			return 0;
+		}
+	}
+
 	/* There may be more data */
 	svsk->sk_data = 1;
 
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