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authorJohannes Berg <johannes@sipsolutions.net>2008-05-03 20:56:42 -0700
committerDavid S. Miller <davem@davemloft.net>2008-05-03 20:56:42 -0700
commitc8005785102e5b67ecf213f06a3d6c001f6f8cb4 (patch)
treef2c46bd894991379039f30da5d1a1d88e68c601c /net/core/skbuff.c
parent3ba08b00e0d8413d79be9cab8ec085ceb6ae6fd6 (diff)
net: Fix useless comment reference loop.
include/linux/skbuff.h says: /* These elements must be at the end, see alloc_skb() for details. */ net/core/skbuff.c says: * See comment in sk_buff definition, just before the 'tail' member This patch contains my guess as to the actual reason rather than a dead comment reference loop. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/skbuff.c')
-rw-r--r--net/core/skbuff.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 4fe605fa6f8..5c459f2b798 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -200,7 +200,9 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
goto nodata;
/*
- * See comment in sk_buff definition, just before the 'tail' member
+ * Only clear those fields we need to clear, not those that we will
+ * actually initialise below. Hence, don't put any more fields after
+ * the tail pointer in struct sk_buff!
*/
memset(skb, 0, offsetof(struct sk_buff, tail));
skb->truesize = size + sizeof(struct sk_buff);