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x86, espfix: Move espfix definitions into a separate header file

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Sparse warns that the percpu variables aren't declared before they are
defined.  Rather than hacking around it, move espfix definitions into
a proper header file.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
H. Peter Anvin 2014-05-01 14:12:23 -07:00
parent 246f2d2ee1
commit e1fe9ed8d2
3 changed files with 19 additions and 3 deletions
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16
arch/x86/include/asm/espfix.h Normal file
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@ -0,0 +1,16 @@
#ifdef _ASM_X86_ESPFIX_H
#define _ASM_X86_ESPFIX_H
#ifdef CONFIG_X86_64
#include <asm/percpu.h>
DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack);
DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_waddr);
extern void init_espfix_bsp(void);
extern void init_espfix_ap(void);
#endif /* CONFIG_X86_64 */
#endif /* _ASM_X86_ESPFIX_H */

5
arch/x86/include/asm/setup.h
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@ -57,11 +57,10 @@ extern void x86_ce4100_early_setup(void);
static inline void x86_ce4100_early_setup(void) { }
#endif
extern void init_espfix_bsp(void);
extern void init_espfix_ap(void);
#ifndef _SETUP
#include <asm/espfix.h>
/*
* This is set up by the setup-routine at boot-time
*/

1
arch/x86/kernel/espfix_64.c
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@ -40,6 +40,7 @@
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/setup.h>
#include <asm/espfix.h>
/*
* Note: we only need 6*8 = 48 bytes for the espfix stack, but round