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 */