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-rw-r--r--arch/powerpc/include/asm/kdump.h6
-rw-r--r--arch/powerpc/kernel/machine_kexec_64.c9
-rw-r--r--arch/powerpc/kernel/misc_64.S9
3 files changed, 5 insertions, 19 deletions
diff --git a/arch/powerpc/include/asm/kdump.h b/arch/powerpc/include/asm/kdump.h
index a503da9d56f3..821ed48c10ed 100644
--- a/arch/powerpc/include/asm/kdump.h
+++ b/arch/powerpc/include/asm/kdump.h
@@ -9,12 +9,6 @@
* Reserve to the end of the FWNMI area, see head_64.S */
#define KDUMP_RESERVE_LIMIT 0x10000 /* 64K */
-/*
- * Used to differentiate between relocatable kdump kernel and other
- * kernels
- */
-#define KDUMP_SIGNATURE 0xfeed1234
-
#ifdef CONFIG_CRASH_DUMP
#define KDUMP_TRAMPOLINE_START 0x0100
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index e6efec788c4d..3c4ca046e854 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -255,14 +255,11 @@ static union thread_union kexec_stack
/* Our assembly helper, in kexec_stub.S */
extern NORET_TYPE void kexec_sequence(void *newstack, unsigned long start,
void *image, void *control,
- void (*clear_all)(void),
- unsigned long kdump_flag) ATTRIB_NORET;
+ void (*clear_all)(void)) ATTRIB_NORET;
/* too late to fail here */
void default_machine_kexec(struct kimage *image)
{
- unsigned long kdump_flag = 0;
-
/* prepare control code if any */
/*
@@ -275,8 +272,6 @@ void default_machine_kexec(struct kimage *image)
if (crashing_cpu == -1)
kexec_prepare_cpus();
- else
- kdump_flag = KDUMP_SIGNATURE;
/* switch to a staticly allocated stack. Based on irq stack code.
* XXX: the task struct will likely be invalid once we do the copy!
@@ -289,7 +284,7 @@ void default_machine_kexec(struct kimage *image)
*/
kexec_sequence(&kexec_stack, image->start, image,
page_address(image->control_code_page),
- ppc_md.hpte_clear_all, kdump_flag);
+ ppc_md.hpte_clear_all);
/* NOTREACHED */
}
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index a243fd072a77..3053fe5c62f2 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -611,12 +611,10 @@ real_mode: /* assume normal blr return */
/*
- * kexec_sequence(newstack, start, image, control, clear_all(), kdump_flag)
+ * kexec_sequence(newstack, start, image, control, clear_all())
*
* does the grungy work with stack switching and real mode switches
* also does simple calls to other code
- *
- * kdump_flag says whether the next kernel should be a kdump kernel.
*/
_GLOBAL(kexec_sequence)
@@ -649,7 +647,7 @@ _GLOBAL(kexec_sequence)
mr r29,r5 /* image (virt) */
mr r28,r6 /* control, unused */
mr r27,r7 /* clear_all() fn desc */
- mr r26,r8 /* kdump flag */
+ mr r26,r8 /* spare */
lhz r25,PACAHWCPUID(r13) /* get our phys cpu from paca */
/* disable interrupts, we are overwriting kernel data next */
@@ -711,6 +709,5 @@ _GLOBAL(kexec_sequence)
mr r4,r30 # start, aka phys mem offset
mtlr 4
li r5,0
- mr r6,r26 /* kdump_flag */
- blr /* image->start(physid, image->start, 0, kdump_flag); */
+ blr /* image->start(physid, image->start, 0); */
#endif /* CONFIG_KEXEC */