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Subject[PATCH net-next 2/6] 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: Alexander Lobakin <alobakin@pm.me>
---
include/linux/skbuff.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 0503c917d773..d93ab74063e5 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -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)
--
2.30.2

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