From b6211ae7f2e56837c6a4849316396d1535606e90 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 28 May 2009 16:36:47 -0700 Subject: [PATCH] atm: Use SKB queue and list helpers instead of doing it by-hand. Signed-off-by: David S. Miller --- net/atm/br2684.c | 26 +++++++++----------------- net/atm/clip.c | 27 ++++++++------------------- 2 files changed, 17 insertions(+), 36 deletions(-) diff --git a/net/atm/br2684.c b/net/atm/br2684.c index 3100a8940afc..bfa8fa9894fc 100644 --- a/net/atm/br2684.c +++ b/net/atm/br2684.c @@ -445,9 +445,10 @@ free_skb: */ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg) { + struct sk_buff_head queue; int err; struct br2684_vcc *brvcc; - struct sk_buff *skb; + struct sk_buff *skb, *tmp; struct sk_buff_head *rq; struct br2684_dev *brdev; struct net_device *net_dev; @@ -505,29 +506,20 @@ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg) barrier(); atmvcc->push = br2684_push; + __skb_queue_head_init(&queue); rq = &sk_atm(atmvcc)->sk_receive_queue; spin_lock_irqsave(&rq->lock, flags); - if (skb_queue_empty(rq)) { - skb = NULL; - } else { - /* NULL terminate the list. */ - rq->prev->next = NULL; - skb = rq->next; - } - rq->prev = rq->next = (struct sk_buff *)rq; - rq->qlen = 0; + skb_queue_splice_init(rq, &queue); spin_unlock_irqrestore(&rq->lock, flags); - while (skb) { - struct sk_buff *next = skb->next; + skb_queue_walk_safe(&queue, skb, tmp) { + struct net_device *dev = skb->dev; - skb->next = skb->prev = NULL; - br2684_push(atmvcc, skb); - skb->dev->stats.rx_bytes -= skb->len; - skb->dev->stats.rx_packets--; + dev->stats.rx_bytes -= skb->len; + dev->stats.rx_packets--; - skb = next; + br2684_push(atmvcc, skb); } __module_get(THIS_MODULE); return 0; diff --git a/net/atm/clip.c b/net/atm/clip.c index 3dc0a3a42a57..5597b87b9e64 100644 --- a/net/atm/clip.c +++ b/net/atm/clip.c @@ -445,9 +445,9 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev) static int clip_mkip(struct atm_vcc *vcc, int timeout) { + struct sk_buff_head *rq, queue; struct clip_vcc *clip_vcc; - struct sk_buff *skb; - struct sk_buff_head *rq; + struct sk_buff *skb, *tmp; unsigned long flags; if (!vcc->push) @@ -469,39 +469,28 @@ static int clip_mkip(struct atm_vcc *vcc, int timeout) vcc->push = clip_push; vcc->pop = clip_pop; + __skb_queue_head_init(&queue); rq = &sk_atm(vcc)->sk_receive_queue; spin_lock_irqsave(&rq->lock, flags); - if (skb_queue_empty(rq)) { - skb = NULL; - } else { - /* NULL terminate the list. */ - rq->prev->next = NULL; - skb = rq->next; - } - rq->prev = rq->next = (struct sk_buff *)rq; - rq->qlen = 0; + skb_queue_splice_init(rq, &queue); spin_unlock_irqrestore(&rq->lock, flags); /* re-process everything received between connection setup and MKIP */ - while (skb) { - struct sk_buff *next = skb->next; - - skb->next = skb->prev = NULL; + skb_queue_walk_safe(&queue, skb, tmp) { if (!clip_devs) { atm_return(vcc, skb->truesize); kfree_skb(skb); } else { + struct net_device *dev = skb->dev; unsigned int len = skb->len; skb_get(skb); clip_push(vcc, skb); - skb->dev->stats.rx_packets--; - skb->dev->stats.rx_bytes -= len; + dev->stats.rx_packets--; + dev->stats.rx_bytes -= len; kfree_skb(skb); } - - skb = next; } return 0; } -- 2.20.1