netdev - [PATCH] net: add comment for sock

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Date:	Tue, 10 Mar 2015 19:03:46 +0100
From:	Oliver Hartkopp <socketcan@...tkopp.net>
To:	netdev@...r.kernel.org
Cc:	eric.dumazet@...il.com, alexander.h.duyck@...hat.com,
	Oliver Hartkopp <socketcan@...tkopp.net>
Subject: [PATCH] net: add comment for sock_efree() usage

Signed-off-by: Oliver Hartkopp <socketcan@...tkopp.net>
---
 net/core/sock.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/core/sock.c b/net/core/sock.c
index 93c8b20..78e89eb 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1655,6 +1655,10 @@ void sock_rfree(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(sock_rfree);
 
+/*
+ * Buffer destructor for skbs that are not used directly in read or write
+ * path, e.g. for error handler skbs. Automatically called from kfree_skb.
+ */
 void sock_efree(struct sk_buff *skb)
 {
 	sock_put(skb->sk);
-- 
2.1.4

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