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[RFC,v2,net-next,07/12] net: core: export do_xdp_generic_core()

Message ID 20191226023200.21389-8-prashantbhole.linux@gmail.com
State RFC
Delegated to: David Miller
Headers show
Series XDP in tx path | expand

Commit Message

Prashant Bhole Dec. 26, 2019, 2:31 a.m. UTC 
From: Jason Wang <jasowang@redhat.com>

Let's export do_xdp_generic as a general purpose function. It will
just run XDP program on skb but will not handle XDP actions.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Prashant Bhole <prashantbhole.linux@gmail.com>
---
 include/linux/netdevice.h | 2 ++
 net/core/dev.c            | 6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)
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Patch

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ac3e88d86581..51b58e47e521 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3661,6 +3661,8 @@  static inline void dev_consume_skb_any(struct sk_buff *skb)
 
 void generic_xdp_tx(struct sk_buff *skb, struct bpf_prog *xdp_prog);
 int do_xdp_generic(struct bpf_prog *xdp_prog, struct sk_buff *skb);
+u32 do_xdp_generic_core(struct sk_buff *skb, struct xdp_buff *xdp,
+			struct bpf_prog *xdp_prog);
 int netif_rx(struct sk_buff *skb);
 int netif_rx_ni(struct sk_buff *skb);
 int netif_receive_skb(struct sk_buff *skb);
diff --git a/net/core/dev.c b/net/core/dev.c
index b05c2d639dcc..db36dd288015 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4461,9 +4461,8 @@  static struct netdev_rx_queue *netif_get_rxqueue(struct sk_buff *skb)
 	return rxqueue;
 }
 
-static u32 do_xdp_generic_core(struct sk_buff *skb,
-			       struct xdp_buff *xdp,
-			       struct bpf_prog *xdp_prog)
+u32 do_xdp_generic_core(struct sk_buff *skb, struct xdp_buff *xdp,
+			struct bpf_prog *xdp_prog)
 {
 	struct netdev_rx_queue *rxqueue;
 	void *orig_data, *orig_data_end;
@@ -4574,6 +4573,7 @@  static u32 do_xdp_generic_core(struct sk_buff *skb,
 
 	return act;
 }
+EXPORT_SYMBOL_GPL(do_xdp_generic_core);
 
 /* When doing generic XDP we have to bypass the qdisc layer and the
  * network taps in order to match in-driver-XDP behavior.