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From: Yinghai Lu on 30 Mar 2010 07:30
Finally no users after init boot stage. We can free it to save some bytes.

Signed-off-by: Yinghai Lu <yinghai(a)kernel.org>
---
arch/x86/include/asm/e820.h | 2 --
arch/x86/kernel/e820.c | 2 +-
2 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
index cd7de51..f2ab72e 100644
--- a/arch/x86/include/asm/e820.h
+++ b/arch/x86/include/asm/e820.h
@@ -73,8 +73,6 @@ struct e820map {
#define BIOS_END 0x00100000

#ifdef __KERNEL__
-/* see comment in arch/x86/kernel/e820.c */
-extern struct e820map e820;

#if defined(CONFIG_X86_OOSTORE) && defined(CONFIG_CPU_SUP_CENTAUR)
extern int centaur_ram_top;
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 471784b..2c1260f 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -35,7 +35,7 @@
* user can e.g. boot the original kernel with mem=1G while still booting the
* next kernel with full memory.
*/
-struct e820map e820;
+static struct e820map __initdata e820;
static struct e820map __initdata e820_saved;

/* For PCI or other memory-mapped resources */
--
1.6.4.2

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Prev: [PATCH 19/29] lmb: Add lmb_find_area_size()
Next: [PATCH 28/29] x86: Use walk_system_ream_range()instead of referring e820.map directly for tboot