From: Linus Lüssing <linus.luessing@c0d3.blue>
Date: Mon, 4 May 2015 22:19:35 +0000 (+0200)
Subject: net: fix two sparse warnings introduced by IGMP/MLD parsing exports
X-Git-Tag: v4.2-rc1~130^2~374
X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;ds=sidebyside;h=fcba67c94abe83e0e69a65737000ccbb16a4fa03;p=cascardo%2Flinux.git

net: fix two sparse warnings introduced by IGMP/MLD parsing exports

> net/core/skbuff.c:4108:13: sparse: incorrect type in assignment (different base types)
> net/ipv6/mcast_snoop.c:63 ipv6_mc_check_exthdrs() warn: unsigned 'offset' is never less than zero.

Introduced by 9afd85c9e4552b276e2f4cfefd622bdeeffbbf26
("net: Export IGMP/MLD message validation code")

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 1e4278a4dd7e..b9eb90b39ac7 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4093,7 +4093,7 @@ struct sk_buff *skb_checksum_trimmed(struct sk_buff *skb,
 {
 	struct sk_buff *skb_chk;
 	unsigned int offset = skb_transport_offset(skb);
-	int ret;
+	__sum16 ret;
 
 	skb_chk = skb_checksum_maybe_trim(skb, transport_len);
 	if (!skb_chk)
diff --git a/net/ipv6/mcast_snoop.c b/net/ipv6/mcast_snoop.c
index 1a2cbc13a7d3..df8afe5ab31e 100644
--- a/net/ipv6/mcast_snoop.c
+++ b/net/ipv6/mcast_snoop.c
@@ -47,7 +47,7 @@ static int ipv6_mc_check_ip6hdr(struct sk_buff *skb)
 static int ipv6_mc_check_exthdrs(struct sk_buff *skb)
 {
 	const struct ipv6hdr *ip6h;
-	unsigned int offset;
+	int offset;
 	u8 nexthdr;
 	__be16 frag_off;