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, 59 deletions

diff --git a/include/linux/serialP.h b/include/linux/serialP.h
index ec27b34bbbd6..c1acdb2c8584 100644
--- a/include/linux/serialP.h
+++ b/include/linux/serialP.h
@@ -26,32 +26,23 @@
 #include <linux/wait.h>
 
 struct serial_state {
-	int	magic;
 	int	baud_base;
 	unsigned long	port;
 	int	irq;
 	int	flags;
-	int	hub6;
 	int	type;
 	int	line;
-	int	revision;	/* Chip revision (950) */
 	int	xmit_fifo_size;
 	int	custom_divisor;
 	int	count;
-	u8	*iomem_base;
-	u16	iomem_reg_shift;
 	unsigned short	close_delay;
 	unsigned short	closing_wait; /* time to wait before closing */
 	struct async_icount	icount;	
-	int	io_type;
 	struct async_struct *info;
-	struct pci_dev	*dev;
 };
 
 struct async_struct {
-	int			magic;
 	unsigned long		port;
-	int			hub6;
 	int			flags;
 	int			xmit_fifo_size;
 	struct serial_state	*state;
@@ -63,21 +54,12 @@ struct async_struct {
 	int			x_char;	/* xon/xoff character */
 	int			close_delay;
 	unsigned short		closing_wait;
-	unsigned short		closing_wait2; /* obsolete */
 	int			IER; 	/* Interrupt Enable Register */
 	int			MCR; 	/* Modem control register */
-	int			LCR; 	/* Line control register */
-	int			ACR;	 /* 16950 Additional Control Reg. */
 	unsigned long		event;
-	unsigned long		last_active;
 	int			line;
 	int			blocked_open; /* # of blocked opens */
  	struct circ_buf		xmit;
- 	spinlock_t		xmit_lock;
-	u8			*iomem_base;
-	u16			iomem_reg_shift;
-	int			io_type;
-	struct work_struct			work;
 	struct tasklet_struct	tlet;
 	wait_queue_head_t	open_wait;
 	wait_queue_head_t	close_wait;
@@ -86,51 +68,10 @@ struct async_struct {
 	struct async_struct	*prev_port;
 };
 
-#define CONFIGURED_SERIAL_PORT(info) ((info)->port || ((info)->iomem_base))
-
-#define SERIAL_MAGIC 0x5301
-#define SSTATE_MAGIC 0x5302
-
 /*
  * Events are used to schedule things to happen at timer-interrupt
  * time, instead of at rs interrupt time.
  */
 #define RS_EVENT_WRITE_WAKEUP	0
 
-/*
- * Multiport serial configuration structure --- internal structure
- */
-struct rs_multiport_struct {
-	int		port1;
-	unsigned char	mask1, match1;
-	int		port2;
-	unsigned char	mask2, match2;
-	int		port3;
-	unsigned char	mask3, match3;
-	int		port4;
-	unsigned char	mask4, match4;
-	int		port_monitor;
-};
-
-#if defined(__alpha__) && !defined(CONFIG_PCI)
-/*
- * Digital did something really horribly wrong with the OUT1 and OUT2
- * lines on at least some ALPHA's.  The failure mode is that if either
- * is cleared, the machine locks up with endless interrupts.
- *
- * This is still used by arch/mips/au1000/common/serial.c for some weird
- * reason (mips != alpha!)
- */
-#define ALPHA_KLUDGE_MCR  (UART_MCR_OUT2 | UART_MCR_OUT1)
-#elif defined(CONFIG_SBC8560)
-/*
- * WindRiver did something similarly broken on their SBC8560 board. The
- * UART tristates its IRQ output while OUT2 is clear, but they pulled
- * the interrupt line _up_ instead of down, so if we register the IRQ
- * while the UART is in that state, we die in an IRQ storm. */
-#define ALPHA_KLUDGE_MCR (UART_MCR_OUT2)
-#else
-#define ALPHA_KLUDGE_MCR 0
-#endif
-
 #endif /* _LINUX_SERIAL_H */