net: introduce and use skb_frag_fill_page_desc()

Most users use __skb_frag_set_page()/skb_frag_off_set()/
skb_frag_size_set() to fill the page desc for a skb frag.

Introduce skb_frag_fill_page_desc() to do that.

net/bpf/test_run.c does not call skb_frag_off_set() to
set the offset, "copy_from_user(page_address(page), ...)"
and 'shinfo' being part of the 'data' kzalloced in
bpf_test_init() suggest that it is assuming offset to be
initialized as zero, so call skb_frag_fill_page_desc()
with offset being zero for this case.

Also, skb_frag_set_page() is not used anymore, so remove
it.

Signed-off-by: Yunsheng Lin <[email protected]>
Reviewed-by: Leon Romanovsky <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

1 files changed, 1 insertions, 4 deletions

diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c
index 80143360bf09..9c0fa0e1786a 100644
--- a/net/xfrm/xfrm_ipcomp.c
+++ b/net/xfrm/xfrm_ipcomp.c
@@ -74,14 +74,11 @@ static int ipcomp_decompress(struct xfrm_state *x, struct sk_buff *skb)
 		if (!page)
 			return -ENOMEM;
 
-		__skb_frag_set_page(frag, page);
-
 		len = PAGE_SIZE;
 		if (dlen < len)
 			len = dlen;
 
-		skb_frag_off_set(frag, 0);
-		skb_frag_size_set(frag, len);
+		skb_frag_fill_page_desc(frag, page, 0, len);
 		memcpy(skb_frag_address(frag), scratch, len);
 
 		skb->truesize += len;