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[PATCH] kexec-ppc: fix for ksysfs crash_notes

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The following patch prevents the crash dump helper code found within kexec
from breaking ppc which still lacks crash dump functionality.

ksysfs crash_notes attribute handling was left under CONFIG_KEXEC for
simplicity although it is not strictly kexec related.

We provide here a dummy definition for crash_notes on ppc.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Albert Herranz 2005-07-12 13:58:34 -07:00 committed by Linus Torvalds
parent 41e2e8bec2
commit bc75a24582
2 changed files with 8 additions and 0 deletions
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6
arch/ppc/kernel/machine_kexec.c
View File

@ -28,6 +28,12 @@ typedef NORET_TYPE void (*relocate_new_kernel_t)(
const extern unsigned char relocate_new_kernel[]; const extern unsigned char relocate_new_kernel[];
const extern unsigned int relocate_new_kernel_size; const extern unsigned int relocate_new_kernel_size;
/*
* Provide a dummy crash_notes definition while crash dump arrives to ppc.
* This prevents breakage of crash_notes attribute in kernel/ksysfs.c.
*/
void *crash_notes = NULL;
void machine_shutdown(void) void machine_shutdown(void)
{ {
if (ppc_md.machine_shutdown) if (ppc_md.machine_shutdown)

2
include/asm-ppc/kexec.h
View File

@ -27,6 +27,8 @@
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
extern void *crash_notes;
struct kimage; struct kimage;
extern void machine_kexec_simple(struct kimage *image); extern void machine_kexec_simple(struct kimage *image);