TTY: 68328serial, remove unused stuff from m68k_serial

Not everything from struct m68k_serial is really used. So remove
unused or only-set members of that structure. Next step is to move it
to 68328serial.c and remove 68328serial.h completely.

This change also takes status_handle and batten_down_hatches away
since they use break_abort but do nothing.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 4 insertions, 48 deletions

diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c
index bf5f81113a0..c1cd2147f9d 100644
--- a/drivers/tty/serial/68328serial.c
+++ b/drivers/tty/serial/68328serial.c
@@ -213,25 +213,6 @@ static void rs_start(struct tty_struct *tty)
         local_irq_restore(flags);
 }
 
-/* Drop into either the boot monitor or kadb upon receiving a break
- * from keyboard/console input.
- */
-static void batten_down_hatches(void)
-{
-        /* Drop into the debugger */
-}
-
-static void status_handle(struct m68k_serial *info, unsigned short status)
-{
-        /* If this is console input and this is a
-         * 'break asserted' status change interrupt
-         * see if we can drop into the debugger
-         */
-        if((status & URX_BREAK) && info->break_abort)
-                batten_down_hatches();
-        return;
-}
-
 static void receive_chars(struct m68k_serial *info, unsigned short rx)
 {
         struct tty_struct *tty = info->tty;
@@ -248,7 +229,6 @@ static void receive_chars(struct m68k_serial *info, unsigned short rx)
         
                 if(info->is_cons) {
                         if(URX_BREAK & rx) { /* whee, break received */
-                                status_handle(info, rx);
                                 return;
 #ifdef CONFIG_MAGIC_SYSRQ
                         } else if (ch == 0x10) { /* ^P */
@@ -269,16 +249,13 @@ static void receive_chars(struct m68k_serial *info, unsigned short rx)
                 
                 flag = TTY_NORMAL;
 
-                if(rx & URX_PARITY_ERROR) {
+                if (rx & URX_PARITY_ERROR)
                         flag = TTY_PARITY;
-                        status_handle(info, rx);
-                } else if(rx & URX_OVRUN) {
+                else if (rx & URX_OVRUN)
                         flag = TTY_OVERRUN;
-                        status_handle(info, rx);
-                } else if(rx & URX_FRAME_ERROR) {
+                else if (rx & URX_FRAME_ERROR)
                         flag = TTY_FRAME;
-                        status_handle(info, rx);
-                }
+
                 tty_insert_flip_char(tty, ch, flag);
 #ifndef CONFIG_XCOPILOT_BUGS
         } while((rx = uart->urx.w) & URX_DATA_READY);
@@ -369,7 +346,6 @@ static int startup(struct m68k_serial * info)
          */
 
         uart->ustcnt = USTCNT_UEN;
-        info->xmit_fifo_size = 1;
         uart->ustcnt = USTCNT_UEN | USTCNT_RXEN | USTCNT_TXEN;
         (void)uart->urx.w;
 
@@ -499,7 +475,6 @@ static void change_speed(struct m68k_serial *info)
                 i = (i & ~CBAUDEX) + B38400;
         }
 
-        info->baud = baud_table[i];
         uart->ubaud = PUT_FIELD(UBAUD_DIVIDE,    hw_baud_table[i].divisor) | 
                 PUT_FIELD(UBAUD_PRESCALER, hw_baud_table[i].prescale);
 
@@ -1034,7 +1009,6 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
                 
         tty_ldisc_flush(tty);
         tty->closing = 0;
-        info->event = 0;
         info->tty = NULL;
 #warning "This is not and has never been valid so fix it"       
 #if 0
@@ -1070,7 +1044,6 @@ void rs_hangup(struct tty_struct *tty)
         
         rs_flush_buffer(tty);
         shutdown(info);
-        info->event = 0;
         info->count = 0;
         info->flags &= ~ASYNC_NORMAL_ACTIVE;
         info->tty = NULL;
@@ -1270,7 +1243,6 @@ rs68328_init(void)
             info->close_delay = 50;
             info->closing_wait = 3000;
             info->x_char = 0;
-            info->event = 0;
             info->count = 0;
             info->blocked_open = 0;
             init_waitqueue_head(&info->open_wait);
diff --git a/drivers/tty/serial/68328serial.h b/drivers/tty/serial/68328serial.h
index a804ea56a0b..971ead5a391 100644
--- a/drivers/tty/serial/68328serial.h
+++ b/drivers/tty/serial/68328serial.h
@@ -60,16 +60,7 @@
  */
 
 struct m68k_serial {
-        char soft_carrier;  /* Use soft carrier on this channel */
-        char break_abort;   /* Is serial console in, so process brk/abrt */
         char is_cons;       /* Is this our console. */
-
-        /* We need to know the current clock divisor
-         * to read the bps rate the chip has currently
-         * loaded.
-         */
-        unsigned char clk_divisor;  /* May be 1, 16, 32, or 64 */
-        int baud;
         int                     magic;
         int                     baud_base;
         int                     port;
@@ -77,17 +68,10 @@ struct m68k_serial {
         int                     flags;          /* defined in tty.h */
         int                     type;           /* UART type */
         struct tty_struct       *tty;
-        int                     read_status_mask;
-        int                     ignore_status_mask;
-        int                     timeout;
-        int                     xmit_fifo_size;
         int                     custom_divisor;
         int                     x_char; /* xon/xoff character */
         int                     close_delay;
         unsigned short          closing_wait;
-        unsigned short          closing_wait2;
-        unsigned long           event;
-        unsigned long           last_active;
         int                     line;
         int                     count;      /* # of fd on device */
         int                     blocked_open; /* # of blocked opens */