net: cleanup unsigned to unsigned int

Use of "unsigned int" is preferred to bare "unsigned" in net tree.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 7ba2196..8a01bfb 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1125,7 +1125,7 @@
 	}
 }
 
-static inline bool inetdev_valid_mtu(unsigned mtu)
+static inline bool inetdev_valid_mtu(unsigned int mtu)
 {
 	return mtu >= 68;
 }