TTY: serialP, remove unused material

First, remove unused macro and rs_multiport_struct structure. Nobody
uses them at all.

Further, the 2 drivers (they are below) which use the rest of
structures from serialP.h (async_struct and serial_state) do not use
all the members. Remove the members:
* which are unused or
* which are only initialized and never used for something real.

Everybody should avoid the structures with a looong distance.

Finally, remove the ALPHA kludge MCR quirks. They are 1:1 copy from
8250.h. No need to redefine them here.

The 2 promised users of the structures:
arch/ia64/hp/sim/simserial.c
drivers/tty/amiserial.c

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 6 deletions

diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index 753286257554..c6d8913dd6f6 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -473,7 +473,6 @@ static irqreturn_t ser_rx_int(int irq, void *dev_id)
                 return IRQ_NONE;
 
         receive_chars(info);
-        info->last_active = jiffies;
 #ifdef SERIAL_DEBUG_INTR
         printk("end.\n");
 #endif
@@ -494,7 +493,6 @@ static irqreturn_t ser_tx_int(int irq, void *dev_id)
                 return IRQ_NONE;
 
           transmit_chars(info);
-          info->last_active = jiffies;
 #ifdef SERIAL_DEBUG_INTR
           printk("end.\n");
 #endif
@@ -828,7 +826,6 @@ static void change_speed(struct async_struct *info,
         mb();
         }
 
-        info->LCR = cval;                               /* Save LCR */
         local_irq_restore(flags);
 }
 
@@ -1743,7 +1740,6 @@ static int get_async_struct(int line, struct async_struct **ret_info)
         init_waitqueue_head(&info->close_wait);
         init_waitqueue_head(&info->delta_msr_wait);
 #endif
-        info->magic = SERIAL_MAGIC;
         info->port = sstate->port;
         info->flags = sstate->flags;
         info->xmit_fifo_size = sstate->xmit_fifo_size;
@@ -1840,7 +1836,6 @@ static inline void line_info(struct seq_file *m, struct serial_state *state)
         if (!info) {
                 info = &scr_info;       /* This is just for serial_{in,out} */
 
-                info->magic = SERIAL_MAGIC;
                 info->flags = state->flags;
                 info->quot = 0;
                 info->tty = NULL;
@@ -1987,7 +1982,6 @@ static int __init amiga_serial_probe(struct platform_device *pdev)
                 goto fail_put_tty_driver;
 
         state = rs_table;
-        state->magic = SSTATE_MAGIC;
         state->port = (int)&custom.serdatr; /* Just to give it a value */
         state->line = 0;
         state->custom_divisor = 0;