[PKT_SCHED] SFQ: whitespace cleanup

Add whitespace around operators, and add a few blank lines to improve
readability.

Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 25 insertions, 17 deletions

diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 4179758450f5..25afe0f1d83a 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -122,7 +122,7 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb)
         {
                 const struct iphdr *iph = ip_hdr(skb);
                 h = iph->daddr;
-                h2 = iph->saddr^iph->protocol;
+                h2 = iph->saddr ^ iph->protocol;
                 if (!(iph->frag_off&htons(IP_MF|IP_OFFSET)) &&
                     (iph->protocol == IPPROTO_TCP ||
                      iph->protocol == IPPROTO_UDP ||
@@ -137,7 +137,7 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb)
         {
                 struct ipv6hdr *iph = ipv6_hdr(skb);
                 h = iph->daddr.s6_addr32[3];
-                h2 = iph->saddr.s6_addr32[3]^iph->nexthdr;
+                h2 = iph->saddr.s6_addr32[3] ^ iph->nexthdr;
                 if (iph->nexthdr == IPPROTO_TCP ||
                     iph->nexthdr == IPPROTO_UDP ||
                     iph->nexthdr == IPPROTO_UDPLITE ||
@@ -148,9 +148,10 @@ static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb)
                 break;
         }
         default:
-                h = (u32)(unsigned long)skb->dst^skb->protocol;
-                h2 = (u32)(unsigned long)skb->sk;
+                h = (unsigned long)skb->dst ^ skb->protocol;
+                h2 = (unsigned long)skb->sk;
         }
+
         return sfq_fold_hash(q, h, h2);
 }
 
@@ -208,7 +209,7 @@ static unsigned int sfq_drop(struct Qdisc *sch)
            drop a packet from it */
 
         if (d > 1) {
-                sfq_index x = q->dep[d+SFQ_DEPTH].next;
+                sfq_index x = q->dep[d + SFQ_DEPTH].next;
                 skb = q->qs[x].prev;
                 len = skb->len;
                 __skb_unlink(skb, &q->qs[x]);
@@ -241,7 +242,7 @@ static unsigned int sfq_drop(struct Qdisc *sch)
 }
 
 static int
-sfq_enqueue(struct sk_buff *skb, struct Qdisc* sch)
+sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
         struct sfq_sched_data *q = qdisc_priv(sch);
         unsigned hash = sfq_hash(q, skb);
@@ -252,6 +253,7 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc* sch)
                 q->ht[hash] = x = q->dep[SFQ_DEPTH].next;
                 q->hash[x] = hash;
         }
+
         /* If selected queue has length q->limit, this means that
          * all another queues are empty and that we do simple tail drop,
          * i.e. drop _this_ packet.
@@ -284,7 +286,7 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc* sch)
 }
 
 static int
-sfq_requeue(struct sk_buff *skb, struct Qdisc* sch)
+sfq_requeue(struct sk_buff *skb, struct Qdisc *sch)
 {
         struct sfq_sched_data *q = qdisc_priv(sch);
         unsigned hash = sfq_hash(q, skb);
@@ -295,6 +297,7 @@ sfq_requeue(struct sk_buff *skb, struct Qdisc* sch)
                 q->ht[hash] = x = q->dep[SFQ_DEPTH].next;
                 q->hash[x] = hash;
         }
+
         sch->qstats.backlog += skb->len;
         __skb_queue_head(&q->qs[x], skb);
         /* If selected queue has length q->limit+1, this means that
@@ -310,6 +313,7 @@ sfq_requeue(struct sk_buff *skb, struct Qdisc* sch)
                 kfree_skb(skb);
                 return NET_XMIT_CN;
         }
+
         sfq_inc(q, x);
         if (q->qs[x].qlen == 1) {               /* The flow is new */
                 if (q->tail == SFQ_DEPTH) {     /* It is the first flow */
@@ -322,6 +326,7 @@ sfq_requeue(struct sk_buff *skb, struct Qdisc* sch)
                         q->tail = x;
                 }
         }
+
         if (++sch->q.qlen <= q->limit) {
                 sch->qstats.requeues++;
                 return 0;
@@ -336,7 +341,7 @@ sfq_requeue(struct sk_buff *skb, struct Qdisc* sch)
 
 
 static struct sk_buff *
-sfq_dequeue(struct Qdisc* sch)
+sfq_dequeue(struct Qdisc *sch)
 {
         struct sfq_sched_data *q = qdisc_priv(sch);
         struct sk_buff *skb;
@@ -373,7 +378,7 @@ sfq_dequeue(struct Qdisc* sch)
 }
 
 static void
-sfq_reset(struct Qdisc* sch)
+sfq_reset(struct Qdisc *sch)
 {
         struct sk_buff *skb;
 
@@ -383,7 +388,7 @@ sfq_reset(struct Qdisc* sch)
 
 static void sfq_perturbation(unsigned long arg)
 {
-        struct Qdisc *sch = (struct Qdisc*)arg;
+        struct Qdisc *sch = (struct Qdisc *)arg;
         struct sfq_sched_data *q = qdisc_priv(sch);
 
         q->perturbation = net_random();
@@ -403,7 +408,7 @@ static int sfq_change(struct Qdisc *sch, struct rtattr *opt)
 
         sch_tree_lock(sch);
         q->quantum = ctl->quantum ? : psched_mtu(sch->dev);
-        q->perturb_period = ctl->perturb_period*HZ;
+        q->perturb_period = ctl->perturb_period * HZ;
         if (ctl->limit)
                 q->limit = min_t(u32, ctl->limit, SFQ_DEPTH - 1);
 
@@ -430,13 +435,15 @@ static int sfq_init(struct Qdisc *sch, struct rtattr *opt)
         q->perturb_timer.data = (unsigned long)sch;;
         init_timer_deferrable(&q->perturb_timer);
 
-        for (i=0; i<SFQ_HASH_DIVISOR; i++)
+        for (i = 0; i < SFQ_HASH_DIVISOR; i++)
                 q->ht[i] = SFQ_DEPTH;
-        for (i=0; i<SFQ_DEPTH; i++) {
+
+        for (i = 0; i < SFQ_DEPTH; i++) {
                 skb_queue_head_init(&q->qs[i]);
-                q->dep[i+SFQ_DEPTH].next = i+SFQ_DEPTH;
-                q->dep[i+SFQ_DEPTH].prev = i+SFQ_DEPTH;
+                q->dep[i + SFQ_DEPTH].next = i + SFQ_DEPTH;
+                q->dep[i + SFQ_DEPTH].prev = i + SFQ_DEPTH;
         }
+
         q->limit = SFQ_DEPTH - 1;
         q->max_depth = 0;
         q->tail = SFQ_DEPTH;
@@ -449,7 +456,8 @@ static int sfq_init(struct Qdisc *sch, struct rtattr *opt)
                 if (err)
                         return err;
         }
-        for (i=0; i<SFQ_DEPTH; i++)
+
+        for (i = 0; i < SFQ_DEPTH; i++)
                 sfq_link(q, i);
         return 0;
 }
@@ -467,7 +475,7 @@ static int sfq_dump(struct Qdisc *sch, struct sk_buff *skb)
         struct tc_sfq_qopt opt;
 
         opt.quantum = q->quantum;
-        opt.perturb_period = q->perturb_period/HZ;
+        opt.perturb_period = q->perturb_period / HZ;
 
         opt.limit = q->limit;
         opt.divisor = SFQ_HASH_DIVISOR;