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powerpc: Provide dummy crash_shutdown_register

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When kexec is disabled, the crash_shutdown_{un,}register
functions are not available in the kernel.
This provides dummy inline functions for those so that
the callers don't have to worry about it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Arnd Bergmann 2008-06-12 19:14:34 +10:00 committed by Paul Mackerras
parent 41743a4e34
commit aee10c6145
1 changed files with 12 additions and 1 deletions
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13
include/asm-powerpc/kexec.h
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@ -34,6 +34,8 @@
#ifndef __ASSEMBLY__
#include <linux/cpumask.h>
typedef void (*crash_shutdown_t)(void);
#ifdef CONFIG_KEXEC
#ifdef __powerpc64__
@ -123,7 +125,6 @@ struct pt_regs;
extern void default_machine_kexec(struct kimage *image);
extern int default_machine_kexec_prepare(struct kimage *image);
extern void default_machine_crash_shutdown(struct pt_regs *regs);
typedef void (*crash_shutdown_t)(void);
extern int crash_shutdown_register(crash_shutdown_t handler);
extern int crash_shutdown_unregister(crash_shutdown_t handler);
@ -143,6 +144,16 @@ static inline int overlaps_crashkernel(unsigned long start, unsigned long size)
static inline void reserve_crashkernel(void) { ; }
static inline int crash_shutdown_register(crash_shutdown_t handler)
{
return 0;
}
static inline int crash_shutdown_unregister(crash_shutdown_t handler)
{
return 0;
}
#endif /* CONFIG_KEXEC */
#endif /* ! __ASSEMBLY__ */
#endif /* __KERNEL__ */