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Subject[tip:x86/asm] x86/asm/boot: Use already defined KEEP_SEGMENTS macro in head_{32,64}.S
Commit-ID:  fb148d83ec6924b7766731e58739d7281b6fb8c7
Gitweb: http://git.kernel.org/tip/fb148d83ec6924b7766731e58739d7281b6fb8c7
Author: Alexander Kuleshov <kuleshovmail@gmail.com>
AuthorDate: Thu, 19 Feb 2015 13:34:58 +0600
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Thu, 19 Feb 2015 10:05:04 +0100

x86/asm/boot: Use already defined KEEP_SEGMENTS macro in head_{32,64}.S

There is already defined macro KEEP_SEGMENTS in
<asm/bootparam.h>, let's use it instead of hardcoded
constants.

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1424331298-7456-1-git-send-email-kuleshovmail@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/boot/compressed/head_32.S | 3 ++-
arch/x86/boot/compressed/head_64.S | 3 ++-
arch/x86/kernel/head_32.S | 3 ++-
3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 1d7fbbc..8ef964d 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -29,6 +29,7 @@
#include <asm/page_types.h>
#include <asm/boot.h>
#include <asm/asm-offsets.h>
+#include <asm/bootparam.h>

__HEAD
ENTRY(startup_32)
@@ -102,7 +103,7 @@ preferred_addr:
* Test KEEP_SEGMENTS flag to see if the bootloader is asking
* us to not reload segments
*/
- testb $(1<<6), BP_loadflags(%esi)
+ testb $KEEP_SEGMENTS, BP_loadflags(%esi)
jnz 1f

cli
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 6b1766c..90c1521 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -31,6 +31,7 @@
#include <asm/msr.h>
#include <asm/processor-flags.h>
#include <asm/asm-offsets.h>
+#include <asm/bootparam.h>

__HEAD
.code32
@@ -46,7 +47,7 @@ ENTRY(startup_32)
* Test KEEP_SEGMENTS flag to see if the bootloader is asking
* us to not reload segments
*/
- testb $(1<<6), BP_loadflags(%esi)
+ testb $KEEP_SEGMENTS, BP_loadflags(%esi)
jnz 1f

cli
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index f36bd42..d031bad 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -22,6 +22,7 @@
#include <asm/cpufeature.h>
#include <asm/percpu.h>
#include <asm/nops.h>
+#include <asm/bootparam.h>

/* Physical address */
#define pa(X) ((X) - __PAGE_OFFSET)
@@ -90,7 +91,7 @@ ENTRY(startup_32)

/* test KEEP_SEGMENTS flag to see if the bootloader is asking
us to not reload segments */
- testb $(1<<6), BP_loadflags(%esi)
+ testb $KEEP_SEGMENTS, BP_loadflags(%esi)
jnz 2f

/*

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