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net: skb_peek()/skb_peek_tail() cleanups 

remove useless casts and rename variables for less confusion.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2012-04-30 16:31:46 +00:00 committed by David S. Miller
parent e4cbb02a10
commit 18d0700024
1 changed files with 12 additions and 8 deletions
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20
include/linux/skbuff.h
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@ -883,10 +883,11 @@ static inline struct sk_buff *skb_unshare(struct sk_buff *skb,
*/ */
static inline struct sk_buff *skb_peek(const struct sk_buff_head *list_) static inline struct sk_buff *skb_peek(const struct sk_buff_head *list_)
{ {
struct sk_buff *list = ((const struct sk_buff *)list_)->next; struct sk_buff *skb = list_->next;
if (list == (struct sk_buff *)list_)
list = NULL; if (skb == (struct sk_buff *)list_)
return list; skb = NULL;
return skb;
} }
/** /**
@ -902,6 +903,7 @@ static inline struct sk_buff *skb_peek_next(struct sk_buff *skb,
const struct sk_buff_head *list_) const struct sk_buff_head *list_)
{ {
struct sk_buff *next = skb->next; struct sk_buff *next = skb->next;
if (next == (struct sk_buff *)list_) if (next == (struct sk_buff *)list_)
next = NULL; next = NULL;
return next; return next;
@ -922,10 +924,12 @@ static inline struct sk_buff *skb_peek_next(struct sk_buff *skb,
*/ */
static inline struct sk_buff *skb_peek_tail(const struct sk_buff_head *list_) static inline struct sk_buff *skb_peek_tail(const struct sk_buff_head *list_)
{ {
struct sk_buff *list = ((const struct sk_buff *)list_)->prev; struct sk_buff *skb = list_->prev;
if (list == (struct sk_buff *)list_)
list = NULL; if (skb == (struct sk_buff *)list_)
return list; skb = NULL;
return skb;
} }
/** /**