From deceb4c062a8dd63fe554c3be2b4bf9151a5cedf Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 23 Jul 2013 20:22:39 +0100 Subject: [PATCH] net: fix comment above build_skb() build_skb() specifies that the data parameter must come from a kmalloc'd area, this is only true if frag_size equals 0, because then build_skb() will use kzsize(data) to figure out the actual data size. Update the comment to reflect that special condition. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- net/core/skbuff.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 20e02d2..3df4d4c 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -309,7 +309,8 @@ EXPORT_SYMBOL(__alloc_skb); * @frag_size: size of fragment, or 0 if head was kmalloced * * Allocate a new &sk_buff. Caller provides space holding head and - * skb_shared_info. @data must have been allocated by kmalloc() + * skb_shared_info. @data must have been allocated by kmalloc() only if + * @frag_size is 0, otherwise data should come from the page allocator. * The return is the new skb buffer. * On a failure the return is %NULL, and @data is not freed. * Notes : -- 2.7.4