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authorToshiaki Makita <makita.toshiaki@lab.ntt.co.jp>2018-08-03 10:58:09 +0300
committerDaniel Borkmann <daniel@iogearbox.net>2018-08-10 17:12:20 +0300
commitb0768a86585d4d951a30ff565f19598dbbd67897 (patch)
tree2a64c4967128d169a232102794226c5e7c41de1f
parentc4c20217542469b9caf7f700ac9a2eeb32cb3742 (diff)
downloadlinux-b0768a86585d4d951a30ff565f19598dbbd67897.tar.xz
net: Export skb_headers_offset_update
This is needed for veth XDP which does skb_copy_expand()-like operation. v2: - Drop skb_copy_header part because it has already been exported now. Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
-rw-r--r--include/linux/skbuff.h1
-rw-r--r--net/core/skbuff.c3
2 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 7ebdf158a795..e93b157f526c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1038,6 +1038,7 @@ static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
}
struct sk_buff *skb_morph(struct sk_buff *dst, struct sk_buff *src);
+void skb_headers_offset_update(struct sk_buff *skb, int off);
int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask);
struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t priority);
void skb_copy_header(struct sk_buff *new, const struct sk_buff *old);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 8d574a88125d..c996c09d095f 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1291,7 +1291,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
}
EXPORT_SYMBOL(skb_clone);
-static void skb_headers_offset_update(struct sk_buff *skb, int off)
+void skb_headers_offset_update(struct sk_buff *skb, int off)
{
/* Only adjust this if it actually is csum_start rather than csum */
if (skb->ip_summed == CHECKSUM_PARTIAL)
@@ -1305,6 +1305,7 @@ static void skb_headers_offset_update(struct sk_buff *skb, int off)
skb->inner_network_header += off;
skb->inner_mac_header += off;
}
+EXPORT_SYMBOL(skb_headers_offset_update);
void skb_copy_header(struct sk_buff *new, const struct sk_buff *old)
{