Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from David Miller:

 1) Add WireGuard

 2) Add HE and TWT support to ath11k driver, from John Crispin.

 3) Add ESP in TCP encapsulation support, from Sabrina Dubroca.

 4) Add variable window congestion control to TIPC, from Jon Maloy.

 5) Add BCM84881 PHY driver, from Russell King.

 6) Start adding netlink support for ethtool operations, from Michal
    Kubecek.

 7) Add XDP drop and TX action support to ena driver, from Sameeh
    Jubran.

 8) Add new ipv4 route notifications so that mlxsw driver does not have
    to handle identical routes itself. From Ido Schimmel.

 9) Add BPF dynamic program extensions, from Alexei Starovoitov.

10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes.

11) Add support for macsec HW offloading, from Antoine Tenart.

12) Add initial support for MPTCP protocol, from Christoph Paasch,
    Matthieu Baerts, Florian Westphal, Peter Krystad, and many others.

13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu
    Cherian, and others.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits)
  net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC
  udp: segment looped gso packets correctly
  netem: change mailing list
  qed: FW 8.42.2.0 debug features
  qed: rt init valid initialization changed
  qed: Debug feature: ilt and mdump
  qed: FW 8.42.2.0 Add fw overlay feature
  qed: FW 8.42.2.0 HSI changes
  qed: FW 8.42.2.0 iscsi/fcoe changes
  qed: Add abstraction for different hsi values per chip
  qed: FW 8.42.2.0 Additional ll2 type
  qed: Use dmae to write to widebus registers in fw_funcs
  qed: FW 8.42.2.0 Parser offsets modified
  qed: FW 8.42.2.0 Queue Manager changes
  qed: FW 8.42.2.0 Expose new registers and change windows
  qed: FW 8.42.2.0 Internal ram offsets modifications
  MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver
  Documentation: net: octeontx2: Add RVU HW and drivers overview
  octeontx2-pf: ethtool RSS config support
  octeontx2-pf: Add basic ethtool support
  ...

1 files changed, 104 insertions, 185 deletions

diff --git a/net/sched/sch_pie.c b/net/sched/sch_pie.c
index b0b0dc46af61..915bcdb59a9f 100644
--- a/net/sched/sch_pie.c
+++ b/net/sched/sch_pie.c
@@ -19,159 +19,76 @@
 #include <linux/skbuff.h>
 #include <net/pkt_sched.h>
 #include <net/inet_ecn.h>
-
-#define QUEUE_THRESHOLD 16384
-#define DQCOUNT_INVALID -1
-#define DTIME_INVALID 0xffffffffffffffff
-#define MAX_PROB 0xffffffffffffffff
-#define PIE_SCALE 8
-
-/* parameters used */
-struct pie_params {
-	psched_time_t target;	/* user specified target delay in pschedtime */
-	u32 tupdate;		/* timer frequency (in jiffies) */
-	u32 limit;		/* number of packets that can be enqueued */
-	u32 alpha;		/* alpha and beta are between 0 and 32 */
-	u32 beta;		/* and are used for shift relative to 1 */
-	bool ecn;		/* true if ecn is enabled */
-	bool bytemode;		/* to scale drop early prob based on pkt size */
-	u8 dq_rate_estimator;	/* to calculate delay using Little's law */
-};
-
-/* variables used */
-struct pie_vars {
-	u64 prob;		/* probability but scaled by u64 limit. */
-	psched_time_t burst_time;
-	psched_time_t qdelay;
-	psched_time_t qdelay_old;
-	u64 dq_count;		/* measured in bytes */
-	psched_time_t dq_tstamp;	/* drain rate */
-	u64 accu_prob;		/* accumulated drop probability */
-	u32 avg_dq_rate;	/* bytes per pschedtime tick,scaled */
-	u32 qlen_old;		/* in bytes */
-	u8 accu_prob_overflows;	/* overflows of accu_prob */
-};
-
-/* statistics gathering */
-struct pie_stats {
-	u32 packets_in;		/* total number of packets enqueued */
-	u32 dropped;		/* packets dropped due to pie_action */
-	u32 overlimit;		/* dropped due to lack of space in queue */
-	u32 maxq;		/* maximum queue size */
-	u32 ecn_mark;		/* packets marked with ECN */
-};
+#include <net/pie.h>
 
 /* private data for the Qdisc */
 struct pie_sched_data {
-	struct pie_params params;
 	struct pie_vars vars;
+	struct pie_params params;
 	struct pie_stats stats;
 	struct timer_list adapt_timer;
 	struct Qdisc *sch;
 };
 
-static void pie_params_init(struct pie_params *params)
+bool pie_drop_early(struct Qdisc *sch, struct pie_params *params,
+		    struct pie_vars *vars, u32 qlen, u32 packet_size)
 {
-	params->alpha = 2;
-	params->beta = 20;
-	params->tupdate = usecs_to_jiffies(15 * USEC_PER_MSEC);	/* 15 ms */
-	params->limit = 1000;	/* default of 1000 packets */
-	params->target = PSCHED_NS2TICKS(15 * NSEC_PER_MSEC);	/* 15 ms */
-	params->ecn = false;
-	params->bytemode = false;
-	params->dq_rate_estimator = false;
-}
-
-/* private skb vars */
-struct pie_skb_cb {
-	psched_time_t enqueue_time;
-};
-
-static struct pie_skb_cb *get_pie_cb(const struct sk_buff *skb)
-{
-	qdisc_cb_private_validate(skb, sizeof(struct pie_skb_cb));
-	return (struct pie_skb_cb *)qdisc_skb_cb(skb)->data;
-}
-
-static psched_time_t pie_get_enqueue_time(const struct sk_buff *skb)
-{
-	return get_pie_cb(skb)->enqueue_time;
-}
-
-static void pie_set_enqueue_time(struct sk_buff *skb)
-{
-	get_pie_cb(skb)->enqueue_time = psched_get_time();
-}
-
-static void pie_vars_init(struct pie_vars *vars)
-{
-	vars->dq_count = DQCOUNT_INVALID;
-	vars->dq_tstamp = DTIME_INVALID;
-	vars->accu_prob = 0;
-	vars->avg_dq_rate = 0;
-	/* default of 150 ms in pschedtime */
-	vars->burst_time = PSCHED_NS2TICKS(150 * NSEC_PER_MSEC);
-	vars->accu_prob_overflows = 0;
-}
-
-static bool drop_early(struct Qdisc *sch, u32 packet_size)
-{
-	struct pie_sched_data *q = qdisc_priv(sch);
 	u64 rnd;
-	u64 local_prob = q->vars.prob;
+	u64 local_prob = vars->prob;
 	u32 mtu = psched_mtu(qdisc_dev(sch));
 
 	/* If there is still burst allowance left skip random early drop */
-	if (q->vars.burst_time > 0)
+	if (vars->burst_time > 0)
 		return false;
 
 	/* 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 ((vars->qdelay < params->target / 2) &&
+	    (vars->prob < MAX_PROB / 5))
 		return false;
 
-	/* If we have fewer than 2 mtu-sized packets, disable drop_early,
+	/* If we have fewer than 2 mtu-sized packets, disable pie_drop_early,
 	 * similar to min_th in RED
 	 */
-	if (sch->qstats.backlog < 2 * mtu)
+	if (qlen < 2 * mtu)
 		return false;
 
 	/* If bytemode is turned on, use packet size to compute new
 	 * probablity. Smaller packets will have lower drop prob in this case
 	 */
-	if (q->params.bytemode && packet_size <= mtu)
+	if (params->bytemode && packet_size <= mtu)
 		local_prob = (u64)packet_size * div_u64(local_prob, mtu);
 	else
-		local_prob = q->vars.prob;
+		local_prob = vars->prob;
 
 	if (local_prob == 0) {
-		q->vars.accu_prob = 0;
-		q->vars.accu_prob_overflows = 0;
+		vars->accu_prob = 0;
+		vars->accu_prob_overflows = 0;
 	}
 
-	if (local_prob > MAX_PROB - q->vars.accu_prob)
-		q->vars.accu_prob_overflows++;
+	if (local_prob > MAX_PROB - vars->accu_prob)
+		vars->accu_prob_overflows++;
 
-	q->vars.accu_prob += local_prob;
+	vars->accu_prob += local_prob;
 
-	if (q->vars.accu_prob_overflows == 0 &&
-	    q->vars.accu_prob < (MAX_PROB / 100) * 85)
+	if (vars->accu_prob_overflows == 0 &&
+	    vars->accu_prob < (MAX_PROB / 100) * 85)
 		return false;
-	if (q->vars.accu_prob_overflows == 8 &&
-	    q->vars.accu_prob >= MAX_PROB / 2)
+	if (vars->accu_prob_overflows == 8 &&
+	    vars->accu_prob >= MAX_PROB / 2)
 		return true;
 
 	prandom_bytes(&rnd, 8);
 	if (rnd < local_prob) {
-		q->vars.accu_prob = 0;
-		q->vars.accu_prob_overflows = 0;
+		vars->accu_prob = 0;
+		vars->accu_prob_overflows = 0;
 		return true;
 	}
 
 	return false;
 }
+EXPORT_SYMBOL_GPL(pie_drop_early);
 
 static int pie_qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 			     struct sk_buff **to_free)
@@ -184,7 +101,8 @@ static int pie_qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 		goto out;
 	}
 
-	if (!drop_early(sch, skb->len)) {
+	if (!pie_drop_early(sch, &q->params, &q->vars, sch->qstats.backlog,
+			    skb->len)) {
 		enqueue = true;
 	} else if (q->params.ecn && (q->vars.prob <= MAX_PROB / 10) &&
 		   INET_ECN_set_ce(skb)) {
@@ -216,14 +134,14 @@ out:
 }
 
 static const struct nla_policy pie_policy[TCA_PIE_MAX + 1] = {
-	[TCA_PIE_TARGET] = {.type = NLA_U32},
-	[TCA_PIE_LIMIT] = {.type = NLA_U32},
-	[TCA_PIE_TUPDATE] = {.type = NLA_U32},
-	[TCA_PIE_ALPHA] = {.type = NLA_U32},
-	[TCA_PIE_BETA] = {.type = NLA_U32},
-	[TCA_PIE_ECN] = {.type = NLA_U32},
-	[TCA_PIE_BYTEMODE] = {.type = NLA_U32},
-	[TCA_PIE_DQ_RATE_ESTIMATOR] = {.type = NLA_U32},
+	[TCA_PIE_TARGET]		= {.type = NLA_U32},
+	[TCA_PIE_LIMIT]			= {.type = NLA_U32},
+	[TCA_PIE_TUPDATE]		= {.type = NLA_U32},
+	[TCA_PIE_ALPHA]			= {.type = NLA_U32},
+	[TCA_PIE_BETA]			= {.type = NLA_U32},
+	[TCA_PIE_ECN]			= {.type = NLA_U32},
+	[TCA_PIE_BYTEMODE]		= {.type = NLA_U32},
+	[TCA_PIE_DQ_RATE_ESTIMATOR]	= {.type = NLA_U32},
 };
 
 static int pie_change(struct Qdisc *sch, struct nlattr *opt,
@@ -296,26 +214,25 @@ static int pie_change(struct Qdisc *sch, struct nlattr *opt,
 	return 0;
 }
 
-static void pie_process_dequeue(struct Qdisc *sch, struct sk_buff *skb)
+void pie_process_dequeue(struct sk_buff *skb, struct pie_params *params,
+			 struct pie_vars *vars, u32 qlen)
 {
-	struct pie_sched_data *q = qdisc_priv(sch);
-	int qlen = sch->qstats.backlog;	/* current queue size in bytes */
 	psched_time_t now = psched_get_time();
 	u32 dtime = 0;
 
 	/* If dq_rate_estimator is disabled, calculate qdelay using the
 	 * packet timestamp.
 	 */
-	if (!q->params.dq_rate_estimator) {
-		q->vars.qdelay = now - pie_get_enqueue_time(skb);
+	if (!params->dq_rate_estimator) {
+		vars->qdelay = now - pie_get_enqueue_time(skb);
 
-		if (q->vars.dq_tstamp != DTIME_INVALID)
-			dtime = now - q->vars.dq_tstamp;
+		if (vars->dq_tstamp != DTIME_INVALID)
+			dtime = now - vars->dq_tstamp;
 
-		q->vars.dq_tstamp = now;
+		vars->dq_tstamp = now;
 
 		if (qlen == 0)
-			q->vars.qdelay = 0;
+			vars->qdelay = 0;
 
 		if (dtime == 0)
 			return;
@@ -327,39 +244,39 @@ static void pie_process_dequeue(struct Qdisc *sch, struct sk_buff *skb)
 	 * we have enough packets to calculate the drain rate. Save
 	 * current time as dq_tstamp and start measurement cycle.
 	 */
-	if (qlen >= QUEUE_THRESHOLD && q->vars.dq_count == DQCOUNT_INVALID) {
-		q->vars.dq_tstamp = psched_get_time();
-		q->vars.dq_count = 0;
+	if (qlen >= QUEUE_THRESHOLD && vars->dq_count == DQCOUNT_INVALID) {
+		vars->dq_tstamp = psched_get_time();
+		vars->dq_count = 0;
 	}
 
-	/* Calculate the average drain rate from this value.  If queue length
-	 * has receded to a small value viz., <= QUEUE_THRESHOLD bytes,reset
+	/* Calculate the average drain rate from this value. If queue length
+	 * has receded to a small value viz., <= QUEUE_THRESHOLD bytes, reset
 	 * the dq_count to -1 as we don't have enough packets to calculate the
-	 * drain rate anymore The following if block is entered only when we
+	 * drain rate anymore. The following if block is entered only when we
 	 * have a substantial queue built up (QUEUE_THRESHOLD bytes or more)
 	 * and we calculate the drain rate for the threshold here.  dq_count is
 	 * in bytes, time difference in psched_time, hence rate is in
 	 * bytes/psched_time.
 	 */
-	if (q->vars.dq_count != DQCOUNT_INVALID) {
-		q->vars.dq_count += skb->len;
+	if (vars->dq_count != DQCOUNT_INVALID) {
+		vars->dq_count += skb->len;
 
-		if (q->vars.dq_count >= QUEUE_THRESHOLD) {
-			u32 count = q->vars.dq_count << PIE_SCALE;
+		if (vars->dq_count >= QUEUE_THRESHOLD) {
+			u32 count = vars->dq_count << PIE_SCALE;
 
-			dtime = now - q->vars.dq_tstamp;
+			dtime = now - vars->dq_tstamp;
 
 			if (dtime == 0)
 				return;
 
 			count = count / dtime;
 
-			if (q->vars.avg_dq_rate == 0)
-				q->vars.avg_dq_rate = count;
+			if (vars->avg_dq_rate == 0)
+				vars->avg_dq_rate = count;
 			else
-				q->vars.avg_dq_rate =
-				    (q->vars.avg_dq_rate -
-				     (q->vars.avg_dq_rate >> 3)) + (count >> 3);
+				vars->avg_dq_rate =
+				    (vars->avg_dq_rate -
+				     (vars->avg_dq_rate >> 3)) + (count >> 3);
 
 			/* If the queue has receded below the threshold, we hold
 			 * on to the last drain rate calculated, else we reset
@@ -367,10 +284,10 @@ static void pie_process_dequeue(struct Qdisc *sch, struct sk_buff *skb)
 			 * packet is dequeued
 			 */
 			if (qlen < QUEUE_THRESHOLD) {
-				q->vars.dq_count = DQCOUNT_INVALID;
+				vars->dq_count = DQCOUNT_INVALID;
 			} else {
-				q->vars.dq_count = 0;
-				q->vars.dq_tstamp = psched_get_time();
+				vars->dq_count = 0;
+				vars->dq_tstamp = psched_get_time();
 			}
 
 			goto burst_allowance_reduction;
@@ -380,18 +297,18 @@ static void pie_process_dequeue(struct Qdisc *sch, struct sk_buff *skb)
 	return;
 
 burst_allowance_reduction:
-	if (q->vars.burst_time > 0) {
-		if (q->vars.burst_time > dtime)
-			q->vars.burst_time -= dtime;
+	if (vars->burst_time > 0) {
+		if (vars->burst_time > dtime)
+			vars->burst_time -= dtime;
 		else
-			q->vars.burst_time = 0;
+			vars->burst_time = 0;
 	}
 }
+EXPORT_SYMBOL_GPL(pie_process_dequeue);
 
-static void calculate_probability(struct Qdisc *sch)
+void pie_calculate_probability(struct pie_params *params, struct pie_vars *vars,
+			       u32 qlen)
 {
-	struct pie_sched_data *q = qdisc_priv(sch);
-	u32 qlen = sch->qstats.backlog;	/* queue size in bytes */
 	psched_time_t qdelay = 0;	/* in pschedtime */
 	psched_time_t qdelay_old = 0;	/* in pschedtime */
 	s64 delta = 0;		/* determines the change in probability */
@@ -400,21 +317,21 @@ static void calculate_probability(struct Qdisc *sch)
 	u32 power;
 	bool update_prob = true;
 
-	if (q->params.dq_rate_estimator) {
-		qdelay_old = q->vars.qdelay;
-		q->vars.qdelay_old = q->vars.qdelay;
+	if (params->dq_rate_estimator) {
+		qdelay_old = vars->qdelay;
+		vars->qdelay_old = vars->qdelay;
 
-		if (q->vars.avg_dq_rate > 0)
-			qdelay = (qlen << PIE_SCALE) / q->vars.avg_dq_rate;
+		if (vars->avg_dq_rate > 0)
+			qdelay = (qlen << PIE_SCALE) / vars->avg_dq_rate;
 		else
 			qdelay = 0;
 	} else {
-		qdelay = q->vars.qdelay;
-		qdelay_old = q->vars.qdelay_old;
+		qdelay = vars->qdelay;
+		qdelay_old = vars->qdelay_old;
 	}
 
-	/* If qdelay is zero and qlen is not, it means qlen is very small, less
-	 * than dequeue_rate, so we do not update probabilty in this round
+	/* If qdelay is zero and qlen is not, it means qlen is very small,
+	 * so we do not update probabilty in this round.
 	 */
 	if (qdelay == 0 && qlen != 0)
 		update_prob = false;
@@ -426,18 +343,18 @@ static void calculate_probability(struct Qdisc *sch)
 	 * probability. alpha/beta are updated locally below by scaling down
 	 * by 16 to come to 0-2 range.
 	 */
-	alpha = ((u64)q->params.alpha * (MAX_PROB / PSCHED_TICKS_PER_SEC)) >> 4;
-	beta = ((u64)q->params.beta * (MAX_PROB / PSCHED_TICKS_PER_SEC)) >> 4;
+	alpha = ((u64)params->alpha * (MAX_PROB / PSCHED_TICKS_PER_SEC)) >> 4;
+	beta = ((u64)params->beta * (MAX_PROB / PSCHED_TICKS_PER_SEC)) >> 4;
 
 	/* We scale alpha and beta differently depending on how heavy the
 	 * congestion is. Please see RFC 8033 for details.
 	 */
-	if (q->vars.prob < MAX_PROB / 10) {
+	if (vars->prob < MAX_PROB / 10) {
 		alpha >>= 1;
 		beta >>= 1;
 
 		power = 100;
-		while (q->vars.prob < div_u64(MAX_PROB, power) &&
+		while (vars->prob < div_u64(MAX_PROB, power) &&
 		       power <= 1000000) {
 			alpha >>= 2;
 			beta >>= 2;
@@ -446,14 +363,14 @@ static void calculate_probability(struct Qdisc *sch)
 	}
 
 	/* alpha and beta should be between 0 and 32, in multiples of 1/16 */
-	delta += alpha * (u64)(qdelay - q->params.target);
+	delta += alpha * (u64)(qdelay - params->target);
 	delta += beta * (u64)(qdelay - qdelay_old);
 
-	oldprob = q->vars.prob;
+	oldprob = vars->prob;
 
 	/* to ensure we increase probability in steps of no more than 2% */
 	if (delta > (s64)(MAX_PROB / (100 / 2)) &&
-	    q->vars.prob >= MAX_PROB / 10)
+	    vars->prob >= MAX_PROB / 10)
 		delta = (MAX_PROB / 100) * 2;
 
 	/* Non-linear drop:
@@ -464,12 +381,12 @@ static void calculate_probability(struct Qdisc *sch)
 	if (qdelay > (PSCHED_NS2TICKS(250 * NSEC_PER_MSEC)))
 		delta += MAX_PROB / (100 / 2);
 
-	q->vars.prob += delta;
+	vars->prob += delta;
 
 	if (delta > 0) {
 		/* prevent overflow */
-		if (q->vars.prob < oldprob) {
-			q->vars.prob = MAX_PROB;
+		if (vars->prob < oldprob) {
+			vars->prob = MAX_PROB;
 			/* Prevent normalization error. If probability is at
 			 * maximum value already, we normalize it here, and
 			 * skip the check to do a non-linear drop in the next
@@ -479,8 +396,8 @@ static void calculate_probability(struct Qdisc *sch)
 		}
 	} else {
 		/* prevent underflow */
-		if (q->vars.prob > oldprob)
-			q->vars.prob = 0;
+		if (vars->prob > oldprob)
+			vars->prob = 0;
 	}
 
 	/* Non-linear drop in probability: Reduce drop probability quickly if
@@ -489,10 +406,10 @@ static void calculate_probability(struct Qdisc *sch)
 
 	if (qdelay == 0 && qdelay_old == 0 && update_prob)
 		/* Reduce drop probability to 98.4% */
-		q->vars.prob -= q->vars.prob / 64u;
+		vars->prob -= vars->prob / 64;
 
-	q->vars.qdelay = qdelay;
-	q->vars.qlen_old = qlen;
+	vars->qdelay = qdelay;
+	vars->qlen_old = qlen;
 
 	/* We restart the measurement cycle if the following conditions are met
 	 * 1. If the delay has been low for 2 consecutive Tupdate periods
@@ -500,16 +417,17 @@ static void calculate_probability(struct Qdisc *sch)
 	 * 3. If average dq_rate_estimator is enabled, we have atleast one
 	 *    estimate for the avg_dq_rate ie., is a non-zero value
 	 */
-	if ((q->vars.qdelay < q->params.target / 2) &&
-	    (q->vars.qdelay_old < q->params.target / 2) &&
-	    q->vars.prob == 0 &&
-	    (!q->params.dq_rate_estimator || q->vars.avg_dq_rate > 0)) {
-		pie_vars_init(&q->vars);
+	if ((vars->qdelay < params->target / 2) &&
+	    (vars->qdelay_old < params->target / 2) &&
+	    vars->prob == 0 &&
+	    (!params->dq_rate_estimator || vars->avg_dq_rate > 0)) {
+		pie_vars_init(vars);
 	}
 
-	if (!q->params.dq_rate_estimator)
-		q->vars.qdelay_old = qdelay;
+	if (!params->dq_rate_estimator)
+		vars->qdelay_old = qdelay;
 }
+EXPORT_SYMBOL_GPL(pie_calculate_probability);
 
 static void pie_timer(struct timer_list *t)
 {
@@ -518,7 +436,7 @@ static void pie_timer(struct timer_list *t)
 	spinlock_t *root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 
 	spin_lock(root_lock);
-	calculate_probability(sch);
+	pie_calculate_probability(&q->params, &q->vars, sch->qstats.backlog);
 
 	/* reset the timer to fire after 'tupdate'. tupdate is in jiffies. */
 	if (q->params.tupdate)
@@ -607,12 +525,13 @@ static int pie_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
 
 static struct sk_buff *pie_qdisc_dequeue(struct Qdisc *sch)
 {
+	struct pie_sched_data *q = qdisc_priv(sch);
 	struct sk_buff *skb = qdisc_dequeue_head(sch);
 
 	if (!skb)
 		return NULL;
 
-	pie_process_dequeue(sch, skb);
+	pie_process_dequeue(skb, &q->params, &q->vars, sch->qstats.backlog);
 	return skb;
 }
 
@@ -633,7 +552,7 @@ static void pie_destroy(struct Qdisc *sch)
 }
 
 static struct Qdisc_ops pie_qdisc_ops __read_mostly = {
-	.id = "pie",
+	.id		= "pie",
 	.priv_size	= sizeof(struct pie_sched_data),
 	.enqueue	= pie_qdisc_enqueue,
 	.dequeue	= pie_qdisc_dequeue,