ARM: 5880/1: arm: use generic infrastructure for early params

The ARM setup code includes its own parser for early params, there's
also one in the generic init code.

This patch removes __early_init (and related code) from
arch/arm/kernel/setup.c, and changes users to the generic early_init
macro instead.

The generic macro takes a char * argument, rather than char **, so we
need to update the parser functions a little.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 21 insertions, 20 deletions

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 1708da82da96..88f5d71248d9 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -100,18 +100,17 @@ static struct cachepolicy cache_policies[] __initdata = {
  * writebuffer to be turned off.  (Note: the write
  * buffer should not be on and the cache off).
  */
-static void __init early_cachepolicy(char **p)
+static int __init early_cachepolicy(char *p)
 {
         int i;
 
         for (i = 0; i < ARRAY_SIZE(cache_policies); i++) {
                 int len = strlen(cache_policies[i].policy);
 
-                if (memcmp(*p, cache_policies[i].policy, len) == 0) {
+                if (memcmp(p, cache_policies[i].policy, len) == 0) {
                         cachepolicy = i;
                         cr_alignment &= ~cache_policies[i].cr_mask;
                         cr_no_alignment &= ~cache_policies[i].cr_mask;
-                        *p += len;
                         break;
                 }
         }
@@ -130,36 +129,37 @@ static void __init early_cachepolicy(char **p)
         }
         flush_cache_all();
         set_cr(cr_alignment);
+        return 0;
 }
-__early_param("cachepolicy=", early_cachepolicy);
+early_param("cachepolicy", early_cachepolicy);
 
-static void __init early_nocache(char **__unused)
+static int __init early_nocache(char *__unused)
 {
         char *p = "buffered";
         printk(KERN_WARNING "nocache is deprecated; use cachepolicy=%s\n", p);
-        early_cachepolicy(&p);
+        early_cachepolicy(p);
+        return 0;
 }
-__early_param("nocache", early_nocache);
+early_param("nocache", early_nocache);
 
-static void __init early_nowrite(char **__unused)
+static int __init early_nowrite(char *__unused)
 {
         char *p = "uncached";
         printk(KERN_WARNING "nowb is deprecated; use cachepolicy=%s\n", p);
-        early_cachepolicy(&p);
+        early_cachepolicy(p);
+        return 0;
 }
-__early_param("nowb", early_nowrite);
+early_param("nowb", early_nowrite);
 
-static void __init early_ecc(char **p)
+static int __init early_ecc(char *p)
 {
-        if (memcmp(*p, "on", 2) == 0) {
+        if (memcmp(p, "on", 2) == 0)
                 ecc_mask = PMD_PROTECTION;
-                *p += 2;
-        } else if (memcmp(*p, "off", 3) == 0) {
+        else if (memcmp(p, "off", 3) == 0)
                 ecc_mask = 0;
-                *p += 3;
-        }
+        return 0;
 }
-__early_param("ecc=", early_ecc);
+early_param("ecc", early_ecc);
 
 static int __init noalign_setup(char *__unused)
 {
@@ -670,9 +670,9 @@ static unsigned long __initdata vmalloc_reserve = SZ_128M;
  * bytes. This can be used to increase (or decrease) the vmalloc
  * area - the default is 128m.
  */
-static void __init early_vmalloc(char **arg)
+static int __init early_vmalloc(char *arg)
 {
-        vmalloc_reserve = memparse(*arg, arg);
+        vmalloc_reserve = memparse(arg, NULL);
 
         if (vmalloc_reserve < SZ_16M) {
                 vmalloc_reserve = SZ_16M;
@@ -687,8 +687,9 @@ static void __init early_vmalloc(char **arg)
                         "vmalloc area is too big, limiting to %luMB\n",
                         vmalloc_reserve >> 20);
         }
+        return 0;
 }
-__early_param("vmalloc=", early_vmalloc);
+early_param("vmalloc", early_vmalloc);
 
 #define VMALLOC_MIN     (void *)(VMALLOC_END - vmalloc_reserve)