[net-next v4 6/8] net: sched: convert tasklets to use new tasklet_setup() API

[Allen Pais]

From: Allen Pais <ap...@linux.microsoft.com>

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.per...@gmail.com>
Signed-off-by: Allen Pais <ap...@linux.microsoft.com>
---
 include/net/pkt_sched.h | 5 +++++
 net/sched/sch_atm.c     | 8 ++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 4ed32e6b0201..15b1b30f454e 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -24,6 +24,11 @@ static inline void *qdisc_priv(struct Qdisc *q)
        return &q->privdata;
 }
 
+static inline struct Qdisc *qdisc_from_priv(void *priv)
+{
+       return container_of(priv, struct Qdisc, privdata);
+}
+
 /* 
    Timer resolution MUST BE < 10% of min_schedulable_packet_size/bandwidth
    
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 1c281cc81f57..007bd2d9f1ff 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -466,10 +466,10 @@ drop: __maybe_unused
  * non-ATM interfaces.
  */
 
-static void sch_atm_dequeue(unsigned long data)
+static void sch_atm_dequeue(struct tasklet_struct *t)
 {
-       struct Qdisc *sch = (struct Qdisc *)data;
-       struct atm_qdisc_data *p = qdisc_priv(sch);
+       struct atm_qdisc_data *p = from_tasklet(p, t, task);
+       struct Qdisc *sch = qdisc_from_priv(p);
        struct atm_flow_data *flow;
        struct sk_buff *skb;
 
@@ -563,7 +563,7 @@ static int atm_tc_init(struct Qdisc *sch, struct nlattr 
*opt,
        if (err)
                return err;
 
-       tasklet_init(&p->task, sch_atm_dequeue, (unsigned long)sch);
+       tasklet_setup(&p->task, sch_atm_dequeue);
        return 0;
 }
 
-- 
2.25.1