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From: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
To: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>
Cc: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>,
	netdev@vger.kernel.org,
	Jesper Dangaard Brouer <brouer@redhat.com>,
	Jakub Kicinski <jakub.kicinski@netronome.com>,
	John Fastabend <john.fastabend@gmail.com>
Subject: [PATCH v6 bpf-next 1/9] net: Export skb_headers_offset_update
Date: Mon, 30 Jul 2018 19:43:43 +0900	[thread overview]
Message-ID: <1532947431-2737-2-git-send-email-makita.toshiaki@lab.ntt.co.jp> (raw)
In-Reply-To: <1532947431-2737-1-git-send-email-makita.toshiaki@lab.ntt.co.jp>

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 --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 266b954..f5670e6 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)
 {
-- 
1.8.3.1

  reply	other threads:[~2018-07-30 12:19 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-30 10:43 [PATCH v6 bpf-next 0/9] veth: Driver XDP Toshiaki Makita
2018-07-30 10:43 ` Toshiaki Makita [this message]
2018-07-30 10:43 ` [PATCH v6 bpf-next 2/9] veth: Add driver XDP Toshiaki Makita
2018-07-30 10:43 ` [PATCH v6 bpf-next 3/9] veth: Avoid drops by oversized packets when XDP is enabled Toshiaki Makita
2018-07-30 10:43 ` [PATCH v6 bpf-next 4/9] veth: Handle xdp_frames in xdp napi ring Toshiaki Makita
2018-07-31 10:26   ` Jesper Dangaard Brouer
2018-07-31 10:40     ` Toshiaki Makita
2018-07-31 12:46       ` Jesper Dangaard Brouer
2018-08-01  5:41         ` Toshiaki Makita
2018-08-01 15:09           ` Jesper Dangaard Brouer
2018-07-30 10:43 ` [PATCH v6 bpf-next 5/9] veth: Add ndo_xdp_xmit Toshiaki Makita
2018-07-30 10:43 ` [PATCH v6 bpf-next 6/9] bpf: Make redirect_info accessible from modules Toshiaki Makita
2018-07-30 10:43 ` [PATCH v6 bpf-next 7/9] xdp: Helpers for disabling napi_direct of xdp_return_frame Toshiaki Makita
2018-07-30 10:43 ` [PATCH v6 bpf-next 8/9] veth: Add XDP TX and REDIRECT Toshiaki Makita
2018-07-30 10:43 ` [PATCH v6 bpf-next 9/9] veth: Support per queue XDP ring Toshiaki Makita

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