[NET]: Make second arg to skb_reserved() signed.



Some subsystems, such as PPP, can send negative values
here.  It just happened to work correctly on 32-bit with
an unsigned value, but on 64-bit this explodes.

Figured out by Paul Mackerras based upon several PPP crash
reports.

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

parent f09484ff

include/linux/skbuff.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -926,7 +926,7 @@ static inline int skb_tailroom(const struct sk_buff *skb)
		* Increase the headroom of an empty &sk_buff by reducing the tail
		* room. This is only allowed for an empty buffer.
		*/
		static inline void skb_reserve(struct sk_buff *skb, unsigned int len)
		static inline void skb_reserve(struct sk_buff *skb, int len)
		{
		skb->data += len;
		skb->tail += len;