From: Leslie Monis <lesliemonis@gmail.com>
Date: Sun, 7 Oct 2018 01:22:45 +0530
Subject: net: sched: pie: fix coding style issues
Patch-mainline: v4.20-rc1
Git-commit: ac4a02c5ab86971b8c2f82b986d37df8e4c4a436
References: bsc#1109837
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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
net/sched/sch_pie.c | 36 ++++++++++++++++++------------------
1 file changed, 18 insertions(+), 18 deletions(-)
--- a/net/sched/sch_pie.c
+++ b/net/sched/sch_pie.c
@@ -109,8 +109,8 @@ static bool drop_early(struct Qdisc *sch
/* 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,
@@ -208,7 +208,8 @@ static int pie_change(struct Qdisc *sch,
/* 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]);
@@ -246,7 +247,6 @@ static int pie_change(struct Qdisc *sch,
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 */
@@ -293,9 +293,9 @@ static void pie_process_dequeue(struct Q
* 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();
}
@@ -369,7 +369,7 @@ static void calculate_probability(struct
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;
@@ -404,7 +404,7 @@ static void calculate_probability(struct
* 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;
@@ -418,8 +418,8 @@ static void calculate_probability(struct
*/
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);
}
@@ -436,7 +436,6 @@ static void pie_timer(unsigned long arg)
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,
@@ -467,15 +466,16 @@ static int pie_dump(struct Qdisc *sch, s
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) ||
@@ -487,7 +487,6 @@ static int pie_dump(struct Qdisc *sch, s
nla_put_failure:
nla_nest_cancel(skb, opts);
return -1;
-
}
static int pie_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
@@ -495,7 +494,7 @@ static int pie_dump_stats(struct Qdisc *
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 *
@@ -512,8 +511,7 @@ static int pie_dump_stats(struct Qdisc *
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;
@@ -525,6 +523,7 @@ static struct sk_buff *pie_qdisc_dequeue
static void pie_reset(struct Qdisc *sch)
{
struct pie_sched_data *q = qdisc_priv(sch);
+
qdisc_reset_queue(sch);
pie_vars_init(&q->vars);
}
@@ -532,6 +531,7 @@ 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);
}