Commit bc75a245 authored by Albert Herranz's avatar Albert Herranz Committed by Linus Torvalds

[PATCH] kexec-ppc: fix for ksysfs crash_notes

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: default avatarAlbert Herranz <>
Cc: Eric Biederman <>
Cc: Vivek Goyal <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 41e2e8be
......@@ -28,6 +28,12 @@ typedef NORET_TYPE void (*relocate_new_kernel_t)(
const extern unsigned char relocate_new_kernel[];
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)
if (ppc_md.machine_shutdown)
......@@ -27,6 +27,8 @@
#ifndef __ASSEMBLY__
extern void *crash_notes;
struct kimage;
extern void machine_kexec_simple(struct kimage *image);
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