Commit a568aff2 authored Mar 04, 2022 by Menglong Dong Committed by David S. Miller Mar 04, 2022

net: dev: use kfree_skb_reason() for sch_handle_ingress()



Replace kfree_skb() used in sch_handle_ingress() with
kfree_skb_reason(). Following drop reasons are introduced:

SKB_DROP_REASON_TC_INGRESS

Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 7e726ed8

include/linux/skbuff.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -406,6 +406,7 @@ enum skb_drop_reason {
		* net.rst) or RPS flow limit
		*/
		SKB_DROP_REASON_XDP, /* dropped by XDP in input path */
		SKB_DROP_REASON_TC_INGRESS, /* dropped in TC ingress HOOK */
		SKB_DROP_REASON_MAX,
		};

include/trace/events/skb.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -49,6 +49,7 @@
		EM(SKB_DROP_REASON_QDISC_DROP, QDISC_DROP) \
		EM(SKB_DROP_REASON_CPU_BACKLOG, CPU_BACKLOG) \
		EM(SKB_DROP_REASON_XDP, XDP) \
		EM(SKB_DROP_REASON_TC_INGRESS, TC_INGRESS) \
		EMe(SKB_DROP_REASON_MAX, MAX)

		#undef EM

net/core/dev.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -5041,7 +5041,7 @@ sch_handle_ingress(struct sk_buff skb, struct packet_type pt_prev, int ret,
		break;
		case TC_ACT_SHOT:
		mini_qdisc_qstats_cpu_drop(miniq);
		kfree_skb(skb);
		kfree_skb_reason(skb, SKB_DROP_REASON_TC_INGRESS);
		return NULL;
		case TC_ACT_STOLEN:
		case TC_ACT_QUEUED: