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net: sched: pie: fix coding style issues

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Fix 5 warnings and 14 checks issued by checkpatch.pl:

CHECK: Logical continuations should be on the previous line
+	if ((q->vars.qdelay < q->params.target / 2)
+	    && (q->vars.prob < MAX_PROB / 5))

WARNING: line over 80 characters
+		q->params.tupdate = usecs_to_jiffies(nla_get_u32(tb[TCA_PIE_TUPDATE]));

CHECK: Blank lines aren't necessary after an open brace '{'
+{
+

CHECK: braces {} should be used on all arms of this statement
+			if (qlen < QUEUE_THRESHOLD)
[...]
+			else {
[...]

CHECK: Unbalanced braces around else statement
+			else {

CHECK: No space is necessary after a cast
+	if (delta > (s32) (MAX_PROB / (100 / 2)) &&

CHECK: Unnecessary parentheses around 'qdelay == 0'
+	if ((qdelay == 0) && (qdelay_old == 0) && update_prob)

CHECK: Unnecessary parentheses around 'qdelay_old == 0'
+	if ((qdelay == 0) && (qdelay_old == 0) && update_prob)

CHECK: Unnecessary parentheses around 'q->vars.prob == 0'
+	if ((q->vars.qdelay < q->params.target / 2) &&
+	    (q->vars.qdelay_old < q->params.target / 2) &&
+	    (q->vars.prob == 0) &&
+	    (q->vars.avg_dq_rate > 0))

CHECK: Unnecessary parentheses around 'q->vars.avg_dq_rate > 0'
+	if ((q->vars.qdelay < q->params.target / 2) &&
+	    (q->vars.qdelay_old < q->params.target / 2) &&
+	    (q->vars.prob == 0) &&
+	    (q->vars.avg_dq_rate > 0))

CHECK: Blank lines aren't necessary before a close brace '}'
+
+}

CHECK: Comparison to NULL could be written "!opts"
+	if (opts == NULL)

CHECK: No space is necessary after a cast
+			((u32) PSCHED_TICKS2NS(q->params.target)) /

WARNING: line over 80 characters
+	    nla_put_u32(skb, TCA_PIE_TUPDATE, jiffies_to_usecs(q->params.tupdate)) ||

CHECK: Blank lines aren't necessary before a close brace '}'
+
+}

CHECK: No space is necessary after a cast
+		.delay		= ((u32) PSCHED_TICKS2NS(q->vars.qdelay)) /

WARNING: Missing a blank line after declarations
+	struct sk_buff *skb;
+	skb = qdisc_dequeue_head(sch);

WARNING: Missing a blank line after declarations
+	struct pie_sched_data *q = qdisc_priv(sch);
+	qdisc_reset_queue(sch);

WARNING: Missing a blank line after declarations
+	struct pie_sched_data *q = qdisc_priv(sch);
+	q->params.tupdate = 0;

Signed-off-by: Leslie Monis <lesliemonis@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Leslie Monis 2018-10-07 01:22:45 +05:30 committed by David S. Miller
parent 5fc7c12ffa
commit ac4a02c5ab
1 changed files with 18 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
net/sched/sch_pie.c
View File

@ -110,8 +110,8 @@ static bool drop_early(struct Qdisc *sch, u32 packet_size)
/* If current delay is less than half of target, and
* if drop prob is low already, disable early_drop
*/
if ((q->vars.qdelay < q->params.target / 2)
&& (q->vars.prob < MAX_PROB / 5))
if ((q->vars.qdelay < q->params.target / 2) &&
(q->vars.prob < MAX_PROB / 5))
return false;
/* If we have fewer than 2 mtu-sized packets, disable drop_early,
@ -209,7 +209,8 @@ static int pie_change(struct Qdisc *sch, struct nlattr *opt,
/* tupdate is in jiffies */
if (tb[TCA_PIE_TUPDATE])
q->params.tupdate = usecs_to_jiffies(nla_get_u32(tb[TCA_PIE_TUPDATE]));
q->params.tupdate =
usecs_to_jiffies(nla_get_u32(tb[TCA_PIE_TUPDATE]));
if (tb[TCA_PIE_LIMIT]) {
u32 limit = nla_get_u32(tb[TCA_PIE_LIMIT]);
@ -247,7 +248,6 @@ static int pie_change(struct Qdisc *sch, struct nlattr *opt,
static void pie_process_dequeue(struct Qdisc *sch, struct sk_buff *skb)
{
struct pie_sched_data *q = qdisc_priv(sch);
int qlen = sch->qstats.backlog; /* current queue size in bytes */
@ -294,9 +294,9 @@ static void pie_process_dequeue(struct Qdisc *sch, struct sk_buff *skb)
* dq_count to 0 to re-enter the if block when the next
* packet is dequeued
*/
if (qlen < QUEUE_THRESHOLD)
if (qlen < QUEUE_THRESHOLD) {
q->vars.dq_count = DQCOUNT_INVALID;
else {
} else {
q->vars.dq_count = 0;
q->vars.dq_tstamp = psched_get_time();
}
@ -370,7 +370,7 @@ static void calculate_probability(struct Qdisc *sch)
oldprob = q->vars.prob;
/* to ensure we increase probability in steps of no more than 2% */
if (delta > (s32) (MAX_PROB / (100 / 2)) &&
if (delta > (s32)(MAX_PROB / (100 / 2)) &&
q->vars.prob >= MAX_PROB / 10)
delta = (MAX_PROB / 100) * 2;
@ -405,7 +405,7 @@ static void calculate_probability(struct Qdisc *sch)
* delay is 0 for 2 consecutive Tupdate periods.
*/
if ((qdelay == 0) && (qdelay_old == 0) && update_prob)
if (qdelay == 0 && qdelay_old == 0 && update_prob)
q->vars.prob = (q->vars.prob * 98) / 100;
q->vars.qdelay = qdelay;
@ -419,8 +419,8 @@ static void calculate_probability(struct Qdisc *sch)
*/
if ((q->vars.qdelay < q->params.target / 2) &&
(q->vars.qdelay_old < q->params.target / 2) &&
(q->vars.prob == 0) &&
(q->vars.avg_dq_rate > 0))
q->vars.prob == 0 &&
q->vars.avg_dq_rate > 0)
pie_vars_init(&q->vars);
}
@ -437,7 +437,6 @@ static void pie_timer(struct timer_list *t)
if (q->params.tupdate)
mod_timer(&q->adapt_timer, jiffies + q->params.tupdate);
spin_unlock(root_lock);
}
static int pie_init(struct Qdisc *sch, struct nlattr *opt,
@ -469,15 +468,16 @@ static int pie_dump(struct Qdisc *sch, struct sk_buff *skb)
struct nlattr *opts;
opts = nla_nest_start(skb, TCA_OPTIONS);
if (opts == NULL)
if (!opts)
goto nla_put_failure;
/* convert target from pschedtime to us */
if (nla_put_u32(skb, TCA_PIE_TARGET,
((u32) PSCHED_TICKS2NS(q->params.target)) /
((u32)PSCHED_TICKS2NS(q->params.target)) /
NSEC_PER_USEC) ||
nla_put_u32(skb, TCA_PIE_LIMIT, sch->limit) ||
nla_put_u32(skb, TCA_PIE_TUPDATE, jiffies_to_usecs(q->params.tupdate)) ||
nla_put_u32(skb, TCA_PIE_TUPDATE,
jiffies_to_usecs(q->params.tupdate)) ||
nla_put_u32(skb, TCA_PIE_ALPHA, q->params.alpha) ||
nla_put_u32(skb, TCA_PIE_BETA, q->params.beta) ||
nla_put_u32(skb, TCA_PIE_ECN, q->params.ecn) ||
@ -489,7 +489,6 @@ static int pie_dump(struct Qdisc *sch, struct sk_buff *skb)
nla_put_failure:
nla_nest_cancel(skb, opts);
return -1;
}
static int pie_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
@ -497,7 +496,7 @@ static int pie_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
struct pie_sched_data *q = qdisc_priv(sch);
struct tc_pie_xstats st = {
.prob = q->vars.prob,
.delay = ((u32) PSCHED_TICKS2NS(q->vars.qdelay)) /
.delay = ((u32)PSCHED_TICKS2NS(q->vars.qdelay)) /
NSEC_PER_USEC,
/* unscale and return dq_rate in bytes per sec */
.avg_dq_rate = q->vars.avg_dq_rate *
@ -514,8 +513,7 @@ static int pie_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
static struct sk_buff *pie_qdisc_dequeue(struct Qdisc *sch)
{
struct sk_buff *skb;
skb = qdisc_dequeue_head(sch);
struct sk_buff *skb = qdisc_dequeue_head(sch);
if (!skb)
return NULL;
@ -527,6 +525,7 @@ static struct sk_buff *pie_qdisc_dequeue(struct Qdisc *sch)
static void pie_reset(struct Qdisc *sch)
{
struct pie_sched_data *q = qdisc_priv(sch);
qdisc_reset_queue(sch);
pie_vars_init(&q->vars);
}
@ -534,6 +533,7 @@ static void pie_reset(struct Qdisc *sch)
static void pie_destroy(struct Qdisc *sch)
{
struct pie_sched_data *q = qdisc_priv(sch);
q->params.tupdate = 0;
del_timer_sync(&q->adapt_timer);
}