[ARM] move initrd code from kernel/setup.c to mm/init.c

This quietens some sparse warnings about phys_initrd_start and
phys_initrd_size.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 37 insertions, 39 deletions

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 67d20e9a7451..f972fc3e979b 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -113,9 +113,6 @@ static struct stack stacks[NR_CPUS];
 char elf_platform[ELF_PLATFORM_SIZE];
 EXPORT_SYMBOL(elf_platform);
 
-unsigned long phys_initrd_start __initdata = 0;
-unsigned long phys_initrd_size __initdata = 0;
-
 static struct meminfo meminfo __initdata = { 0, };
 static const char *cpu_name;
 static const char *machine_name;
@@ -445,20 +442,6 @@ static struct machine_desc * __init setup_machine(unsigned int nr)
         return list;
 }
 
-static void __init early_initrd(char **p)
-{
-        unsigned long start, size;
-
-        start = memparse(*p, p);
-        if (**p == ',') {
-                size = memparse((*p) + 1, p);
-
-                phys_initrd_start = start;
-                phys_initrd_size = size;
-        }
-}
-__early_param("initrd=", early_initrd);
-
 static void __init arm_add_memory(unsigned long start, unsigned long size)
 {
         struct membank *bank;
@@ -696,26 +679,6 @@ static int __init parse_tag_ramdisk(const struct tag *tag)
 
 __tagtable(ATAG_RAMDISK, parse_tag_ramdisk);
 
-static int __init parse_tag_initrd(const struct tag *tag)
-{
-        printk(KERN_WARNING "ATAG_INITRD is deprecated; "
-                "please update your bootloader.\n");
-        phys_initrd_start = __virt_to_phys(tag->u.initrd.start);
-        phys_initrd_size = tag->u.initrd.size;
-        return 0;
-}
-
-__tagtable(ATAG_INITRD, parse_tag_initrd);
-
-static int __init parse_tag_initrd2(const struct tag *tag)
-{
-        phys_initrd_start = tag->u.initrd.start;
-        phys_initrd_size = tag->u.initrd.size;
-        return 0;
-}
-
-__tagtable(ATAG_INITRD2, parse_tag_initrd2);
-
 static int __init parse_tag_serialnr(const struct tag *tag)
 {
         system_serial_low = tag->u.serialnr.low;
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 30a69d67d673..c70fb1d18903 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -27,8 +27,43 @@
 #include "mm.h"
 
 extern void _text, _etext, __data_start, _end, __init_begin, __init_end;
-extern unsigned long phys_initrd_start;
-extern unsigned long phys_initrd_size;
+
+static unsigned long phys_initrd_start __initdata = 0;
+static unsigned long phys_initrd_size __initdata = 0;
+
+static void __init early_initrd(char **p)
+{
+        unsigned long start, size;
+
+        start = memparse(*p, p);
+        if (**p == ',') {
+                size = memparse((*p) + 1, p);
+
+                phys_initrd_start = start;
+                phys_initrd_size = size;
+        }
+}
+__early_param("initrd=", early_initrd);
+
+static int __init parse_tag_initrd(const struct tag *tag)
+{
+        printk(KERN_WARNING "ATAG_INITRD is deprecated; "
+                "please update your bootloader.\n");
+        phys_initrd_start = __virt_to_phys(tag->u.initrd.start);
+        phys_initrd_size = tag->u.initrd.size;
+        return 0;
+}
+
+__tagtable(ATAG_INITRD, parse_tag_initrd);
+
+static int __init parse_tag_initrd2(const struct tag *tag)
+{
+        phys_initrd_start = tag->u.initrd.start;
+        phys_initrd_size = tag->u.initrd.size;
+        return 0;
+}
+
+__tagtable(ATAG_INITRD2, parse_tag_initrd2);
 
 /*
  * This is used to pass memory configuration data from paging_init