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Subject[PATCH net-next v4 1/4] skbuff: introduce kfree_skb_list_reason()
Date
This is to introduce kfree_skb_list_reason() to drop a list of sk_buff with
a specific reason.

Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
---
include/linux/skbuff.h | 2 ++
net/core/skbuff.c | 11 +++++++++--
2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 31be38078918..bc3f7822110c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1176,6 +1176,8 @@ static inline void kfree_skb(struct sk_buff *skb)
}

void skb_release_head_state(struct sk_buff *skb);
+void kfree_skb_list_reason(struct sk_buff *segs,
+ enum skb_drop_reason reason);
void kfree_skb_list(struct sk_buff *segs);
void skb_dump(const char *level, const struct sk_buff *skb, bool full_pkt);
void skb_tx_error(struct sk_buff *skb);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index b32c5d782fe1..b4193eab3083 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -777,15 +777,22 @@ 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_reason);
+
+void kfree_skb_list(struct sk_buff *segs)
+{
+ kfree_skb_list_reason(segs, SKB_DROP_REASON_NOT_SPECIFIED);
+}
EXPORT_SYMBOL(kfree_skb_list);

/* Dump skb information and contents.
--
2.17.1
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