[POWERPC] Remove unused old code from powermac setup code

Since bootdevice never gets initialized, it's always NULL, and hence a
whole pile of code in arch/powerpc/platforms/setup.c never gets used.
(This was the code that originally was there so that the automatic
root partition selection mechanism would prefer a rootish-looking
partition on the device that OF loaded the kernel from over a similar
partition on other devices.)

This removes the unused code.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 840f5b4..02c5330 100644 (file)
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -387,69 +387,13 @@ static void __init pmac_setup_arch(void)
 #endif /* CONFIG_ADB */
 }
 
-char *bootpath;
-char *bootdevice;
-void *boot_host;
-int boot_target;
-int boot_part;
-static dev_t boot_dev;
-
 #ifdef CONFIG_SCSI
 void note_scsi_host(struct device_node *node, void *host)
 {
-       int l;
-       char *p;
-
-       l = strlen(node->full_name);
-       if (bootpath != NULL && bootdevice != NULL
-           && strncmp(node->full_name, bootdevice, l) == 0
-           && (bootdevice[l] == '/' || bootdevice[l] == 0)) {
-               boot_host = host;
-               /*
-                * There's a bug in OF 1.0.5.  (Why am I not surprised.)
-                * If you pass a path like scsi/sd@1:0 to canon, it returns
-                * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0
-                * That is, the scsi target number doesn't get preserved.
-                * So we pick the target number out of bootpath and use that.
-                */
-               p = strstr(bootpath, "/sd@");
-               if (p != NULL) {
-                       p += 4;
-                       boot_target = simple_strtoul(p, NULL, 10);
-                       p = strchr(p, ':');
-                       if (p != NULL)
-                               boot_part = simple_strtoul(p + 1, NULL, 10);
-               }
-       }
 }
 EXPORT_SYMBOL(note_scsi_host);
 #endif
 
-#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
-static dev_t __init find_ide_boot(void)
-{
-       char *p;
-       int n;
-       dev_t __init pmac_find_ide_boot(char *bootdevice, int n);
-
-       if (bootdevice == NULL)
-               return 0;
-       p = strrchr(bootdevice, '/');
-       if (p == NULL)
-               return 0;
-       n = p - bootdevice;
-
-       return pmac_find_ide_boot(bootdevice, n);
-}
-#endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */
-
-static void __init find_boot_device(void)
-{
-#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
-       boot_dev = find_ide_boot();
-#endif
-}
-
 static int initializing = 1;
 
 static int pmac_late_init(void)
@@ -474,7 +418,6 @@ late_initcall(pmac_late_init);
  */
 void __init_refok note_bootable_part(dev_t dev, int part, int goodness)
 {
-       static int found_boot = 0;
        char *p;
 
        if (!initializing)
@@ -486,15 +429,8 @@ void __init_refok note_bootable_part(dev_t dev, int part, int goodness)
        if (p != NULL && (p == boot_command_line || p[-1] == ' '))
                return;
 
-       if (!found_boot) {
-               find_boot_device();
-               found_boot = 1;
-       }
-       if (!boot_dev || dev == boot_dev) {
-               ROOT_DEV = dev + part;
-               boot_dev = 0;
-               current_root_goodness = goodness;
-       }
+       ROOT_DEV = dev + part;
+       current_root_goodness = goodness;
 }
 
 #ifdef CONFIG_ADB_CUDA