[NET]: Treat the sign of the result of skb_headroom() consistently
In some places, the result of skb_headroom() is compared to an unsigned
integer, and in others, the result is compared to a signed integer. Make
the comparisons consistent and correct.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 13565df..653fc0a 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -171,7 +171,7 @@
u32 mtu;
if (opt) {
- int head_room;
+ unsigned int head_room;
/* First: exthdrs may take lots of space (~8K for now)
MAX_HEADER is not enough.
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 2320cc2..5383b33 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -838,7 +838,7 @@
struct dst_entry *dst;
struct net_device *tdev;
int mtu;
- int max_headroom = sizeof(struct ipv6hdr);
+ unsigned int max_headroom = sizeof(struct ipv6hdr);
u8 proto;
int err = -1;
int pkt_len;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 466657a..71433d2 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -430,7 +430,7 @@
struct rtable *rt; /* Route to the other host */
struct net_device *tdev; /* Device to other host */
struct iphdr *iph; /* Our new IP header */
- int max_headroom; /* The extra header space needed */
+ unsigned int max_headroom; /* The extra header space needed */
__be32 dst = tiph->daddr;
int mtu;
struct in6_addr *addr6;