powerpc: Remove broken and complicated kdump system reset code

We have a lot of complicated logic that handles possible recursion between
kdump and a system reset exception. We can solve this in a much simpler
way using the same setjmp/longjmp tricks xmon does.

As a first step, this patch removes the old system reset code.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 0 insertions, 6 deletions

diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index f921eb121d39..209ed8ba1637 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -73,11 +73,6 @@ extern void kexec_smp_wait(void);	/* get and clear naca physid, wait for
                                           master to copy new code to 0 */
 extern int crashing_cpu;
 extern void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *));
-extern cpumask_t cpus_in_sr;
-static inline int kexec_sr_activated(int cpu)
-{
-        return cpumask_test_cpu(cpu, &cpus_in_sr);
-}
 
 struct kimage;
 struct pt_regs;
@@ -94,7 +89,6 @@ extern void reserve_crashkernel(void);
 extern void machine_kexec_mask_interrupts(void);
 
 #else /* !CONFIG_KEXEC */
-static inline int kexec_sr_activated(int cpu) { return 0; }
 static inline void crash_kexec_secondary(struct pt_regs *regs) { }
 
 static inline int overlaps_crashkernel(unsigned long start, unsigned long size)