From: Menglong Dong <imagedong@xxxxxxxxxxx>
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@xxxxxxxxxxx>
---
include/linux/skbuff.h | 1 +
include/trace/events/skb.h | 1 +
net/core/dev.c | 2 +-
3 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index d2cf87ff84c2..23bbfcd6668b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -408,6 +408,7 @@ 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 29c360b5e114..c117430375c0 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -48,6 +48,7 @@
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 373fa7a33ffa..ae85e024c7b7 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4797,7 +4797,7 @@ 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);
--
2.35.1
