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Subject[PATCH net-next v2 2/7] net: skb: introduce the function kfree_skb_list_reason()
Date
From: Menglong Dong <imagedong@tencent.com>

To report reasons of skb drops, introduce the function
kfree_skb_list_reason() and make kfree_skb_list() an inline call to
it. This function will be used in the next commit in
__dev_xmit_skb().

Signed-off-by: Menglong Dong <imagedong@tencent.com>
---
include/linux/skbuff.h | 8 +++++++-
net/core/skbuff.c | 7 ++++---
2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 4328dfc3281c..9d219e266dc7 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1191,10 +1191,16 @@ static inline void kfree_skb(struct sk_buff *skb)
}

void skb_release_head_state(struct sk_buff *skb);
-void kfree_skb_list(struct sk_buff *segs);
+void kfree_skb_list_reason(struct sk_buff *segs,
+ enum skb_drop_reason reason);
void skb_dump(const char *level, const struct sk_buff *skb, bool full_pkt);
void skb_tx_error(struct sk_buff *skb);

+static inline void kfree_skb_list(struct sk_buff *segs)
+{
+ kfree_skb_list_reason(segs, SKB_DROP_REASON_NOT_SPECIFIED);
+}
+
#ifdef CONFIG_TRACEPOINTS
void consume_skb(struct sk_buff *skb);
#else
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index b32c5d782fe1..46d7dea78011 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -777,16 +777,17 @@ void kfree_skb_reason(struct sk_buff *skb, enum skb_drop_reason reason)
}
EXPORT_SYMBOL(kfree_skb_reason);

-void kfree_skb_list(struct sk_buff *segs)
+void kfree_skb_list_reason(struct sk_buff *segs,
+ enum skb_drop_reason reason)
{
while (segs) {
struct sk_buff *next = segs->next;

- kfree_skb(segs);
+ kfree_skb_reason(segs, reason);
segs = next;
}
}
-EXPORT_SYMBOL(kfree_skb_list);
+EXPORT_SYMBOL(kfree_skb_list_reason);

/* Dump skb information and contents.
*
--
2.35.1
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