slcan: remove unused 'leased', 'line' and 'pid' fields from the 'slcan' structure

Signed-off-by: Matvejchikov Ilya <matvejchikov@gmail.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 9 deletions

diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index 65e54fd0a8d7..f523f1cc5142 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -96,10 +96,6 @@ struct slcan {
         unsigned long           flags;          /* Flag values/ mode etc     */
 #define SLF_INUSE               0               /* Channel in use            */
 #define SLF_ERROR               1               /* Parity, etc. error        */
-
-        unsigned char           leased;
-        dev_t                   line;
-        pid_t                   pid;
 };
 
 static struct net_device **slcan_devs;
@@ -446,7 +442,7 @@ static void slc_sync(void)
                         break;
 
                 sl = netdev_priv(dev);
-                if (sl->tty || sl->leased)
+                if (sl->tty)
                         continue;
                 if (dev->flags & IFF_UP)
                         dev_close(dev);
@@ -534,8 +530,6 @@ static int slcan_open(struct tty_struct *tty)
 
         sl->tty = tty;
         tty->disc_data = sl;
-        sl->line = tty_devnum(tty);
-        sl->pid = current->pid;
 
         if (!test_bit(SLF_INUSE, &sl->flags)) {
                 /* Perform the low-level SLCAN initialization. */
@@ -586,8 +580,6 @@ static void slcan_close(struct tty_struct *tty)
 
         tty->disc_data = NULL;
         sl->tty = NULL;
-        if (!sl->leased)
-                sl->line = 0;
 
         /* Flush network side */
         unregister_netdev(sl->dev);