[src/trunk]: src/sys/arch remove some dead code, avoid set but unused variables.

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e8597766b40c
branches:  trunk
changeset: 327609:e8597766b40c
user:      mrg <mrg%NetBSD.org@localhost>
date:      Wed Mar 12 22:21:07 2014 +0000

description:
remove some dead code, avoid set but unused variables.

diffstat:

 sys/arch/evbmips/alchemy/dbau1550.c |  14 ++------------
 sys/arch/mips/ralink/ralink_gpio.c  |  10 +++++-----
 2 files changed, 7 insertions(+), 17 deletions(-)

diffs (82 lines):

diff -r 04ca6affa5c1 -r e8597766b40c sys/arch/evbmips/alchemy/dbau1550.c
--- a/sys/arch/evbmips/alchemy/dbau1550.c       Wed Mar 12 21:40:07 2014 +0000
+++ b/sys/arch/evbmips/alchemy/dbau1550.c       Wed Mar 12 22:21:07 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: dbau1550.c,v 1.12 2011/07/10 00:03:52 matt Exp $ */
+/* $NetBSD: dbau1550.c,v 1.13 2014/03/12 22:21:07 mrg Exp $ */
 
 /*-
  * Copyright (c) 2006 Itronix Inc.
@@ -32,7 +32,7 @@
  */ 
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dbau1550.c,v 1.12 2011/07/10 00:03:52 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dbau1550.c,v 1.13 2014/03/12 22:21:07 mrg Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -320,18 +320,8 @@
 void
 dbau1550_slot_disable(int slot)
 {
-       int             shift;
        uint16_t        status;
 
-       switch (slot) {
-       case 0:
-               shift = DBAU1550_PCMCIA_PC0_SHIFT;
-               break;
-       case 1:
-               shift = DBAU1550_PCMCIA_PC1_SHIFT;
-               break;
-       }
-
        status = GET16(DBAU1550_PCMCIA);
        status &= ~(DBAU1550_PCMCIA_MASK);
        PUT16(DBAU1550_PCMCIA, status);
diff -r 04ca6affa5c1 -r e8597766b40c sys/arch/mips/ralink/ralink_gpio.c
--- a/sys/arch/mips/ralink/ralink_gpio.c        Wed Mar 12 21:40:07 2014 +0000
+++ b/sys/arch/mips/ralink/ralink_gpio.c        Wed Mar 12 22:21:07 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ralink_gpio.c,v 1.4 2012/10/27 17:18:02 chs Exp $      */
+/*     $NetBSD: ralink_gpio.c,v 1.5 2014/03/12 22:21:07 mrg Exp $      */
 /*-
  * Copyright (c) 2011 CradlePoint Technology, Inc.
  * All rights reserved.
@@ -29,7 +29,7 @@
 /* ra_gpio.c -- Ralink 3052 gpio driver */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ralink_gpio.c,v 1.4 2012/10/27 17:18:02 chs Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ralink_gpio.c,v 1.5 2014/03/12 22:21:07 mrg Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -665,7 +665,6 @@
 static void
 ra_gpio_pin_init(ra_gpio_softc_t *sc, int pin)
 {
-       u_int gpio_mode;
        uint32_t r;
 
        sc->sc_pins[pin].pin_caps = 0;
@@ -692,7 +691,6 @@
        sc->sc_pins[pin].pin_caps = GPIO_PIN_INPUT | GPIO_PIN_OUTPUT |
            GPIO_PIN_INVIN | GPIO_PIN_INVOUT;
        sc->sc_pins[pin].pin_state = GPIO_PIN_INPUT;
-       gpio_mode = 0;
 
 #if defined(SLICKROCK)
        r = sy_read(sc, RA_SYSCTL_GPIOMODE);
@@ -706,7 +704,9 @@
         * GPIO0 doesn't have an associated MODE register.
         */
        if (pin != 0) {
-               for (gpio_mode=0; gpio_mode < GPIO_MODE_SETTINGS; gpio_mode++) {
+               u_int gpio_mode = 0;
+
+               for (gpio_mode; gpio_mode < GPIO_MODE_SETTINGS; gpio_mode++) {
                        if (pin <= pin_share[gpio_mode]) {
                                r = sy_read(sc, RA_SYSCTL_GPIOMODE);
                                if (10 == pin) {