These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 27 insertions, 34 deletions

diff --git a/kernel/include/net/sch_generic.h b/kernel/include/net/sch_generic.h
index 6d778efcf..b2a8e6338 100644
--- a/kernel/include/net/sch_generic.h
+++ b/kernel/include/net/sch_generic.h
@@ -61,6 +61,9 @@ struct Qdisc {
 				      */
 #define TCQ_F_WARN_NONWC	(1 << 16)
 #define TCQ_F_CPUSTATS		0x20 /* run using percpu statistics */
+#define TCQ_F_NOPARENT		0x40 /* root of its hierarchy :
+				      * qdisc_tree_decrease_qlen() should stop.
+				      */
 	u32			limit;
 	const struct Qdisc_ops	*ops;
 	struct qdisc_size_table	__rcu *stab;
@@ -251,7 +254,7 @@ struct tcf_proto {
 struct qdisc_skb_cb {
 	unsigned int		pkt_len;
 	u16			slave_dev_queue_mapping;
-	u16			_pad;
+	u16			tc_classid;
 #define QDISC_CB_PRIV_LEN 20
 	unsigned char		data[QDISC_CB_PRIV_LEN];
 };
@@ -340,6 +343,7 @@ extern struct Qdisc noop_qdisc;
 extern struct Qdisc_ops noop_qdisc_ops;
 extern struct Qdisc_ops pfifo_fast_ops;
 extern struct Qdisc_ops mq_qdisc_ops;
+extern struct Qdisc_ops noqueue_qdisc_ops;
 extern const struct Qdisc_ops *default_qdisc_ops;
 
 struct Qdisc_class_common {
@@ -401,6 +405,7 @@ void __qdisc_calculate_pkt_len(struct sk_buff *skb,
 			       const struct qdisc_size_table *stab);
 bool tcf_destroy(struct tcf_proto *tp, bool force);
 void tcf_destroy_chain(struct tcf_proto __rcu **fl);
+int skb_do_redirect(struct sk_buff *);
 
 /* Reset all TX qdiscs greater then index of a device.  */
 static inline void qdisc_reset_all_tx_gt(struct net_device *dev, unsigned int i)
@@ -501,12 +506,6 @@ static inline int qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	return sch->enqueue(skb, sch);
 }
 
-static inline int qdisc_enqueue_root(struct sk_buff *skb, struct Qdisc *sch)
-{
-	qdisc_skb_cb(skb)->pkt_len = skb->len;
-	return qdisc_enqueue(skb, sch) & NET_XMIT_MASK;
-}
-
 static inline bool qdisc_is_percpu_stats(const struct Qdisc *q)
 {
 	return q->flags & TCQ_F_CPUSTATS;
@@ -519,17 +518,20 @@ static inline void bstats_update(struct gnet_stats_basic_packed *bstats,
 	bstats->packets += skb_is_gso(skb) ? skb_shinfo(skb)->gso_segs : 1;
 }
 
-static inline void qdisc_bstats_update_cpu(struct Qdisc *sch,
-					   const struct sk_buff *skb)
+static inline void bstats_cpu_update(struct gnet_stats_basic_cpu *bstats,
+				     const struct sk_buff *skb)
 {
-	struct gnet_stats_basic_cpu *bstats =
-				this_cpu_ptr(sch->cpu_bstats);
-
 	u64_stats_update_begin(&bstats->syncp);
 	bstats_update(&bstats->bstats, skb);
 	u64_stats_update_end(&bstats->syncp);
 }
 
+static inline void qdisc_bstats_cpu_update(struct Qdisc *sch,
+					   const struct sk_buff *skb)
+{
+	bstats_cpu_update(this_cpu_ptr(sch->cpu_bstats), skb);
+}
+
 static inline void qdisc_bstats_update(struct Qdisc *sch,
 				       const struct sk_buff *skb)
 {
@@ -553,16 +555,24 @@ static inline void __qdisc_qstats_drop(struct Qdisc *sch, int count)
 	sch->qstats.drops += count;
 }
 
-static inline void qdisc_qstats_drop(struct Qdisc *sch)
+static inline void qstats_drop_inc(struct gnet_stats_queue *qstats)
 {
-	sch->qstats.drops++;
+	qstats->drops++;
 }
 
-static inline void qdisc_qstats_drop_cpu(struct Qdisc *sch)
+static inline void qstats_overlimit_inc(struct gnet_stats_queue *qstats)
 {
-	struct gnet_stats_queue *qstats = this_cpu_ptr(sch->cpu_qstats);
+	qstats->overlimits++;
+}
 
-	qstats->drops++;
+static inline void qdisc_qstats_drop(struct Qdisc *sch)
+{
+	qstats_drop_inc(&sch->qstats);
+}
+
+static inline void qdisc_qstats_cpu_drop(struct Qdisc *sch)
+{
+	qstats_drop_inc(this_cpu_ptr(sch->cpu_qstats));
 }
 
 static inline void qdisc_qstats_overlimit(struct Qdisc *sch)
@@ -745,23 +755,6 @@ static inline u32 qdisc_l2t(struct qdisc_rate_table* rtab, unsigned int pktlen)
 	return rtab->data[slot];
 }
 
-#ifdef CONFIG_NET_CLS_ACT
-static inline struct sk_buff *skb_act_clone(struct sk_buff *skb, gfp_t gfp_mask,
-					    int action)
-{
-	struct sk_buff *n;
-
-	n = skb_clone(skb, gfp_mask);
-
-	if (n) {
-		n->tc_verd = SET_TC_VERD(n->tc_verd, 0);
-		n->tc_verd = CLR_TC_OK2MUNGE(n->tc_verd);
-		n->tc_verd = CLR_TC_MUNGED(n->tc_verd);
-	}
-	return n;
-}
-#endif
-
 struct psched_ratecfg {
 	u64	rate_bytes_ps; /* bytes per second */
 	u32	mult;