Commit e3305138 authored by Alexander Lobakin's avatar Alexander Lobakin Committed by David S. Miller
Browse files

skbuff: make __skb_header_pointer()'s data argument const 



The function never modifies the input buffer, so 'data' argument
can be marked as const.
This implies one harmless cast-away.

Signed-off-by: default avatarAlexander Lobakin <alobakin@pm.me>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent dac06b32

include/linux/skbuff.h

+3 −3
Original line number Diff line number Diff line
@@ -3678,11 +3678,11 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset, int len, 
		    __wsum csum);



static inline void * __must_check

__skb_header_pointer(const struct sk_buff *skb, int offset,

		     int len, void *data, int hlen, void *buffer)

__skb_header_pointer(const struct sk_buff *skb, int offset, int len,

		     const void *data, int hlen, void *buffer)

{

	if (hlen - offset >= len)

		return data + offset;

		return (void *)data + offset;



	if (!skb ||

	    skb_copy_bits(skb, offset, buffer, len) < 0)