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path: root/drivers/net/hamradio/6pack.c
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Diffstat (limited to 'drivers/net/hamradio/6pack.c')
-rw-r--r--drivers/net/hamradio/6pack.c34
1 files changed, 13 insertions, 21 deletions
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 021a8ec411ab..32f49c4ce457 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -35,7 +35,7 @@
#include <linux/tcp.h>
#include <linux/semaphore.h>
#include <linux/compat.h>
-#include <linux/atomic.h>
+#include <linux/refcount.h>
#define SIXPACK_VERSION "Revision: 0.3.0"
@@ -120,7 +120,7 @@ struct sixpack {
struct timer_list tx_t;
struct timer_list resync_t;
- atomic_t refcnt;
+ refcount_t refcnt;
struct semaphore dead_sem;
spinlock_t lock;
};
@@ -136,9 +136,9 @@ static int encode_sixpack(unsigned char *, unsigned char *, int, unsigned char);
* Note that in case of DAMA operation, the data is not sent here.
*/
-static void sp_xmit_on_air(unsigned long channel)
+static void sp_xmit_on_air(struct timer_list *t)
{
- struct sixpack *sp = (struct sixpack *) channel;
+ struct sixpack *sp = from_timer(sp, t, tx_t);
int actual, when = sp->slottime;
static unsigned char random;
@@ -229,7 +229,7 @@ static void sp_encaps(struct sixpack *sp, unsigned char *icp, int len)
sp->xleft = count;
sp->xhead = sp->xbuff;
sp->status2 = count;
- sp_xmit_on_air((unsigned long)sp);
+ sp_xmit_on_air(&sp->tx_t);
}
return;
@@ -381,7 +381,7 @@ static struct sixpack *sp_get(struct tty_struct *tty)
read_lock(&disc_data_lock);
sp = tty->disc_data;
if (sp)
- atomic_inc(&sp->refcnt);
+ refcount_inc(&sp->refcnt);
read_unlock(&disc_data_lock);
return sp;
@@ -389,7 +389,7 @@ static struct sixpack *sp_get(struct tty_struct *tty)
static void sp_put(struct sixpack *sp)
{
- if (atomic_dec_and_test(&sp->refcnt))
+ if (refcount_dec_and_test(&sp->refcnt))
up(&sp->dead_sem);
}
@@ -500,9 +500,9 @@ static inline void tnc_set_sync_state(struct sixpack *sp, int new_tnc_state)
__tnc_set_sync_state(sp, new_tnc_state);
}
-static void resync_tnc(unsigned long channel)
+static void resync_tnc(struct timer_list *t)
{
- struct sixpack *sp = (struct sixpack *) channel;
+ struct sixpack *sp = from_timer(sp, t, resync_t);
static char resync_cmd = 0xe8;
/* clear any data that might have been received */
@@ -526,8 +526,6 @@ static void resync_tnc(unsigned long channel)
/* Start resync timer again -- the TNC might be still absent */
del_timer(&sp->resync_t);
- sp->resync_t.data = (unsigned long) sp;
- sp->resync_t.function = resync_tnc;
sp->resync_t.expires = jiffies + SIXP_RESYNC_TIMEOUT;
add_timer(&sp->resync_t);
}
@@ -541,8 +539,6 @@ static inline int tnc_init(struct sixpack *sp)
sp->tty->ops->write(sp->tty, &inbyte, 1);
del_timer(&sp->resync_t);
- sp->resync_t.data = (unsigned long) sp;
- sp->resync_t.function = resync_tnc;
sp->resync_t.expires = jiffies + SIXP_RESYNC_TIMEOUT;
add_timer(&sp->resync_t);
@@ -580,7 +576,7 @@ static int sixpack_open(struct tty_struct *tty)
sp->dev = dev;
spin_lock_init(&sp->lock);
- atomic_set(&sp->refcnt, 1);
+ refcount_set(&sp->refcnt, 1);
sema_init(&sp->dead_sem, 0);
/* !!! length of the buffers. MTU is IP MTU, not PACLEN! */
@@ -623,11 +619,9 @@ static int sixpack_open(struct tty_struct *tty)
netif_start_queue(dev);
- init_timer(&sp->tx_t);
- sp->tx_t.function = sp_xmit_on_air;
- sp->tx_t.data = (unsigned long) sp;
+ timer_setup(&sp->tx_t, sp_xmit_on_air, 0);
- init_timer(&sp->resync_t);
+ timer_setup(&sp->resync_t, resync_tnc, 0);
spin_unlock_bh(&sp->lock);
@@ -676,7 +670,7 @@ static void sixpack_close(struct tty_struct *tty)
* We have now ensured that nobody can start using ap from now on, but
* we have to wait for all existing users to finish.
*/
- if (!atomic_dec_and_test(&sp->refcnt))
+ if (!refcount_dec_and_test(&sp->refcnt))
down(&sp->dead_sem);
/* We must stop the queue to avoid potentially scribbling
@@ -928,8 +922,6 @@ static void decode_prio_command(struct sixpack *sp, unsigned char cmd)
if (sp->tnc_state == TNC_IN_SYNC) {
del_timer(&sp->resync_t);
- sp->resync_t.data = (unsigned long) sp;
- sp->resync_t.function = resync_tnc;
sp->resync_t.expires = jiffies + SIXP_INIT_RESYNC_TIMEOUT;
add_timer(&sp->resync_t);
}