linux-kernel - [PATCH net-next 02/10] net: skb: add SKB_DR

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Message-Id: <20240815124302.982711-3-dongml2@chinatelecom.cn>
Date: Thu, 15 Aug 2024 20:42:54 +0800
From: Menglong Dong <menglong8.dong@...il.com>
To: kuba@...nel.org
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	pabeni@...hat.com,
	dsahern@...nel.org,
	dongml2@...natelecom.cn,
	idosch@...dia.com,
	amcohen@...dia.com,
	gnault@...hat.com,
	bpoirier@...dia.com,
	b.galvani@...il.com,
	razor@...ckwall.org,
	petrm@...dia.com,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH net-next 02/10] net: skb: add SKB_DR_RESET

For now, the skb drop reason can be SKB_NOT_DROPPED_YET, which makes the
kfree_skb_reason call consume_skb. In some case, we need to make sure that
kfree_skb is called, which means the reason can't be SKB_NOT_DROPPED_YET.
Introduce SKB_DR_RESET() to reset the reason to NOT_SPECIFIED if it is
SKB_NOT_DROPPED_YET.

Signed-off-by: Menglong Dong <dongml2@...natelecom.cn>
---
 include/net/dropreason-core.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/net/dropreason-core.h b/include/net/dropreason-core.h
index 9707ab54fdd5..8da0129d1ed6 100644
--- a/include/net/dropreason-core.h
+++ b/include/net/dropreason-core.h
@@ -445,5 +445,6 @@ enum skb_drop_reason {
 		    name == SKB_NOT_DROPPED_YET)		\
 			SKB_DR_SET(name, reason);		\
 	} while (0)
+#define SKB_DR_RESET(name) SKB_DR_OR(name, NOT_SPECIFIED)
 
 #endif
-- 
2.39.2