x86: remove extern declarations for code, data, bss resources

This patch removes the extern struct resource declarations for
data_resource, code_resource and bss_resource on x86 and declares that
three structures as static as done on other architectures like IA64.

On i386, these structures are moved to setup_32.c (from e820_32.c) because
that's code that is not specific to e820 and also required on EFI systems.
That makes the "extern" reference superfluous.

On x86_64, data_resource, code_resource and bss_resource are passed to
e820_reserve_resources() as arguments just as done on i386 and IA64.  That
also avoids the "extern" reference and it's possible to make it static.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index bcb5f3aaa097..1acb435a0585 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -123,19 +123,19 @@ struct resource standard_io_resources[] = {
 
 #define IORESOURCE_RAM (IORESOURCE_BUSY | IORESOURCE_MEM)
 
-struct resource data_resource = {
+static struct resource data_resource = {
         .name = "Kernel data",
         .start = 0,
         .end = 0,
         .flags = IORESOURCE_RAM,
 };
-struct resource code_resource = {
+static struct resource code_resource = {
         .name = "Kernel code",
         .start = 0,
         .end = 0,
         .flags = IORESOURCE_RAM,
 };
-struct resource bss_resource = {
+static struct resource bss_resource = {
         .name = "Kernel bss",
         .start = 0,
         .end = 0,
@@ -438,7 +438,7 @@ void __init setup_arch(char **cmdline_p)
         /*
          * We trust e820 completely. No explicit ROM probing in memory.
          */
-        e820_reserve_resources(); 
+        e820_reserve_resources(&code_resource, &data_resource, &bss_resource);
         e820_mark_nosave_regions();
 
         {