diff mbox series

[v8,bpf-next,01/10] net: Export skb_headers_offset_update

Message ID 1533283098-2397-2-git-send-email-makita.toshiaki@lab.ntt.co.jp
State Accepted, archived
Delegated to: BPF Maintainers
Headers show
Series veth: Driver XDP | expand

Commit Message

Toshiaki Makita Aug. 3, 2018, 7:58 a.m. UTC 
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>
---
 include/linux/skbuff.h | 1 +
 net/core/skbuff.c      | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index fd3cb1b..f692968 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1035,6 +1035,7 @@  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 51b0a912..4acd464 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)
 {