From: Johannes Berg Date: Sun, 4 May 2008 03:56:42 +0000 (-0700) Subject: net: Fix useless comment reference loop. X-Git-Tag: Ubuntu-snapdragon-4.4.0-1050.54~32542^2~17 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=c8005785102e5b67ecf213f06a3d6c001f6f8cb4;p=mirror_ubuntu-artful-kernel.git 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 Signed-off-by: David S. Miller --- diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 4fe605fa6f8a..5c459f2b7985 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);