[PATCH v4 2/5] x86/crash: Fix up declaration of do_nmi_crash()

[Andrew Cooper <andrew.cooper3@citrix.com>]

... so it can correctly be annotated as noreturn.  Move the declaration of
nmi_crash() to be effectivly private in crash.c

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
CC: Keir Fraser <keir@xen.org>
CC: Jan Beulich <JBeulich@suse.com>

---

Changes in v4:
 * Standardise on noreturn before the function name
---
 xen/arch/x86/crash.c            |    3 ++-
 xen/include/asm-x86/processor.h |    2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/crash.c b/xen/arch/x86/crash.c
index 01fd906..ec586bd 100644
--- a/xen/arch/x86/crash.c
+++ b/xen/arch/x86/crash.c
@@ -36,7 +36,7 @@ static unsigned int crashing_cpu;
 static DEFINE_PER_CPU_READ_MOSTLY(bool_t, crash_save_done);
 
 /* This becomes the NMI handler for non-crashing CPUs, when Xen is crashing. */
-void __attribute__((noreturn)) do_nmi_crash(struct cpu_user_regs *regs)
+void do_nmi_crash(struct cpu_user_regs *regs)
 {
     int cpu = smp_processor_id();
 
@@ -113,6 +113,7 @@ void __attribute__((noreturn)) do_nmi_crash(struct cpu_user_regs *regs)
         halt();
 }
 
+void nmi_crash(void);
 static void nmi_shootdown_cpus(void)
 {
     unsigned long msecs;
diff --git a/xen/include/asm-x86/processor.h b/xen/include/asm-x86/processor.h
index c120460..1d1dee6 100644
--- a/xen/include/asm-x86/processor.h
+++ b/xen/include/asm-x86/processor.h
@@ -529,7 +529,6 @@ void do_ ## _name(struct cpu_user_regs *regs)
 DECLARE_TRAP_HANDLER(divide_error);
 DECLARE_TRAP_HANDLER(debug);
 DECLARE_TRAP_HANDLER(nmi);
-DECLARE_TRAP_HANDLER(nmi_crash);
 DECLARE_TRAP_HANDLER(int3);
 DECLARE_TRAP_HANDLER(overflow);
 DECLARE_TRAP_HANDLER(bounds);
@@ -550,6 +549,7 @@ DECLARE_TRAP_HANDLER(spurious_interrupt_bug);
 
 void trap_nop(void);
 void enable_nmis(void);
+void noreturn do_nmi_crash(struct cpu_user_regs *regs);
 
 void syscall_enter(void);
 void sysenter_entry(void);
-- 
1.7.10.4