From: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Date: Tue, 9 Feb 2010 23:38:45 +0000 (-0200)
Subject: x86: Do not reserve brk for DMI if it's not going to be used
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=e808bae2407a087bfd40200a27587898e5a9909d;p=linux-edison.git

x86: Do not reserve brk for DMI if it's not going to be used

This will save 64K bytes from memory when loading linux if DMI is
disabled, which is good for embedded systems.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
LKML-Reference: <1265758732-19320-1-git-send-email-cascardo@holoscopio.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
---

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 3499b4fabc9..cb42109a55b 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -121,7 +121,9 @@
 unsigned long max_low_pfn_mapped;
 unsigned long max_pfn_mapped;
 
+#ifdef CONFIG_DMI
 RESERVE_BRK(dmi_alloc, 65536);
+#endif
 
 unsigned int boot_cpu_id __read_mostly;