diff mbox series

[net-next,17/19] net: dev: use kfree_skb_reason() for do_xdp_generic()

Message ID 20220215112812.2093852-18-imagedong@tencent.com (mailing list archive)
State Not Applicable
Delegated to: Netdev Maintainers
Headers show
Series net: add skb drop reasons for TCP, IP, dev and neigh | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/apply fail Patch does not apply to net-next

Commit Message

Menglong Dong Feb. 15, 2022, 11:28 a.m. UTC 
From: Menglong Dong <imagedong@tencent.com>

Replace kfree_skb() used in do_xdp_generic() with kfree_skb_reason().
The drop reason SKB_DROP_REASON_XDP is introduced for this case.

Signed-off-by: Menglong Dong <imagedong@tencent.com>
---
 include/linux/skbuff.h     | 1 +
 include/trace/events/skb.h | 1 +
 net/core/dev.c             | 2 +-
 3 files changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index d59fdcd98278..79b24d5f491d 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -410,6 +410,7 @@  enum skb_drop_reason {
 					 * full (see netdev_max_backlog in
 					 * net.rst) or RPS flow limit
 					 */
+	SKB_DROP_REASON_XDP,		/* dropped by XDP in input path */
 	SKB_DROP_REASON_MAX,
 };
 
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index a1c235daf23b..7bc46414a81b 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -46,6 +46,7 @@ 
 	EM(SKB_DROP_REASON_QDISC_EGRESS, QDISC_EGRESS)		\
 	EM(SKB_DROP_REASON_QDISC_DROP, QDISC_DROP)		\
 	EM(SKB_DROP_REASON_CPU_BACKLOG, CPU_BACKLOG)		\
+	EM(SKB_DROP_REASON_XDP, XDP)				\
 	EMe(SKB_DROP_REASON_MAX, MAX)
 
 #undef EM
diff --git a/net/core/dev.c b/net/core/dev.c
index 8fee7adfca88..a2548b7f2708 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4783,7 +4783,7 @@  int do_xdp_generic(struct bpf_prog *xdp_prog, struct sk_buff *skb)
 	}
 	return XDP_PASS;
 out_redir:
-	kfree_skb(skb);
+	kfree_skb_reason(skb, SKB_DROP_REASON_XDP);
 	return XDP_DROP;
 }
 EXPORT_SYMBOL_GPL(do_xdp_generic);