commit fc910a27839584209726537698b596576940add4
author David S. Miller <davem@davemloft.net> Sun Mar 25 20:27:59 2007 -0700
committer David S. Miller <davem@sunset.davemloft.net> Wed Apr 25 22:23:45 2007 -0700
tree e03b021dcb5046ffb1e8154f0f4d4bc72c4c1c1d
parent ca043569390c528de4cd5ec9e07502f2bf4ecd1f

[NETLINK]: Limit NLMSG_GOODSIZE to 8K.

Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/skbuff.h

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f9441b5..30089ad 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -39,9 +39,11 @@
 
 #define SKB_DATA_ALIGN(X)	(((X) + (SMP_CACHE_BYTES - 1)) & \
 				 ~(SMP_CACHE_BYTES - 1))
-#define SKB_MAX_ORDER(X, ORDER)	(((PAGE_SIZE << (ORDER)) - (X) - \
-				  sizeof(struct skb_shared_info)) & \
-				  ~(SMP_CACHE_BYTES - 1))
+#define SKB_WITH_OVERHEAD(X)	\
+	(((X) - sizeof(struct skb_shared_info)) & \
+	 ~(SMP_CACHE_BYTES - 1))
+#define SKB_MAX_ORDER(X, ORDER) \
+	SKB_WITH_OVERHEAD((PAGE_SIZE << (ORDER)) - (X))
 #define SKB_MAX_HEAD(X)		(SKB_MAX_ORDER((X), 0))
 #define SKB_MAX_ALLOC		(SKB_MAX_ORDER(0, 2))