diff mbox series

[v2,net-next,08/12] net: Rename and export copy_skb_header

Message ID 1510148317-84661-9-git-send-email-ilyal@mellanox.com
State Changes Requested, archived
Delegated to: David Miller
Headers show
Series tls: Add generic NIC offload infrastructure | expand

Commit Message

Ilya Lesokhin Nov. 8, 2017, 1:38 p.m. UTC 
copy_skb_header is renamed to skb_copy_header and
exported. Exposing this function give more flexibility
in copying SKBs.
skb_copy and skb_copy_expand do not give enough control
over which parts are copied.

Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
---
 include/linux/skbuff.h | 1 +
 net/core/skbuff.c      | 9 +++++----
 2 files changed, 6 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 03634ec2..6ee8952 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1030,6 +1030,7 @@  static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
 struct sk_buff *skb_morph(struct sk_buff *dst, struct sk_buff *src);
 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);
 struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t priority);
 struct sk_buff *__pskb_copy_fclone(struct sk_buff *skb, int headroom,
 				   gfp_t gfp_mask, bool fclone);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 97e604d..5cd9fff 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1306,7 +1306,7 @@  static void skb_headers_offset_update(struct sk_buff *skb, int off)
 	skb->inner_mac_header += off;
 }
 
-static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
+void skb_copy_header(struct sk_buff *new, const struct sk_buff *old)
 {
 	__copy_skb_header(new, old);
 
@@ -1314,6 +1314,7 @@  static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
 	skb_shinfo(new)->gso_type = skb_shinfo(old)->gso_type;
 }
+EXPORT_SYMBOL(skb_copy_header);
 
 static inline int skb_alloc_rx_flag(const struct sk_buff *skb)
 {
@@ -1356,7 +1357,7 @@  struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t gfp_mask)
 
 	BUG_ON(skb_copy_bits(skb, -headerlen, n->head, headerlen + skb->len));
 
-	copy_skb_header(n, skb);
+	skb_copy_header(n, skb);
 	return n;
 }
 EXPORT_SYMBOL(skb_copy);
@@ -1420,7 +1421,7 @@  struct sk_buff *__pskb_copy_fclone(struct sk_buff *skb, int headroom,
 		skb_clone_fraglist(n);
 	}
 
-	copy_skb_header(n, skb);
+	skb_copy_header(n, skb);
 out:
 	return n;
 }
@@ -1600,7 +1601,7 @@  struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 	BUG_ON(skb_copy_bits(skb, -head_copy_len, n->head + head_copy_off,
 			     skb->len + head_copy_len));
 
-	copy_skb_header(n, skb);
+	skb_copy_header(n, skb);
 
 	skb_headers_offset_update(n, newheadroom - oldheadroom);