Hi,
Signed-off-by: Albert Herranz
<[email protected]>
The following patch prevents the crash dump helper
code found within kexec from breaking ppc which still
lacks crash dump functionality.
As discussed in [1], 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.
Cheers,
Albert
[1]
http://lists.osdl.org/mailman/htdig/fastboot/2005-April/001324.html
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--- a/include/asm-ppc/kexec.h 2005-07-09 00:44:31.000000000 +0200
+++ b/include/asm-ppc/kexec.h 2005-07-09 03:17:20.000000000 +0200
@@ -27,6 +27,8 @@
#ifndef __ASSEMBLY__
+extern void *crash_notes;
+
struct kimage;
extern void machine_kexec_simple(struct kimage *image);
--- a/arch/ppc/kernel/machine_kexec.c 2005-07-09 00:44:25.000000000 +0200
+++ b/arch/ppc/kernel/machine_kexec.c 2005-07-09 03:45:18.000000000 +0200
@@ -28,6 +28,12 @@ typedef NORET_TYPE void (*relocate_new_k
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)
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