From: Ben Pfaff <blp@nicira.com>
Date: Fri, 10 Dec 2010 22:13:17 +0000 (-0800)
Subject: datapath: Fix csum_replace4() compatibility implementation.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f2dd2b10b6f8473fc9ba0637c955d13e2e35a38;p=openvswitch

datapath: Fix csum_replace4() compatibility implementation.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
---

diff --git a/datapath/linux-2.6/compat-2.6/include/net/checksum.h b/datapath/linux-2.6/compat-2.6/include/net/checksum.h
index c2ffb341..e7e7966c 100644
--- a/datapath/linux-2.6/compat-2.6/include/net/checksum.h
+++ b/datapath/linux-2.6/compat-2.6/include/net/checksum.h
@@ -23,7 +23,7 @@ static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)
 {
 	__be32 diff[] = { ~from, to };
 
-	sum = csum_fold(csum_partial((char *)diff, sizeof(diff), ~csum_unfold(*sum)));
+	*sum = csum_fold(csum_partial((char *)diff, sizeof(diff), ~csum_unfold(*sum)));
 }
 
 #define inet_proto_csum_replace2(sum, skb, from, to, pseudohdr) \