[PATCH] severing skbuff.h -> mm.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index 6e7ea2f..9dbb525 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -127,6 +127,7 @@
 
 #ifdef __KERNEL__
 #include <linux/skbuff.h>
+#include <linux/timer.h>
 #include <linux/in.h>
 
 extern int sysctl_igmp_max_memberships;