From: Borislav Petkov <bp@suse.de>
Date: Fri, 9 Nov 2018 23:13:13 +0100
Subject: x86/mce: Fix -Wmissing-prototypes warnings
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Git-commit: 68b5e4326e4b8ac9080835005d8254fed0fb3c56
Patch-mainline: 5.0-rc1
References: git-fixes

Add the proper includes and make smca_get_name() static.

Fix an actual bug too which the warning triggered:

  arch/x86/kernel/cpu/mcheck/therm_throt.c:395:39: error: conflicting \
  types for ‘smp_thermal_interrupt’
   asmlinkage __visible void __irq_entry smp_thermal_interrupt(struct pt_regs *r)
                                         ^~~~~~~~~~~~~~~~~~~~~
  In file included from arch/x86/kernel/cpu/mcheck/therm_throt.c:29:
  ./arch/x86/include/asm/traps.h:107:17: note: previous declaration of \
	  ‘smp_thermal_interrupt’ was here
   asmlinkage void smp_thermal_interrupt(void);

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Yi Wang <wang.yi59@zte.com.cn>
Cc: Michael Matz <matz@suse.de>
Cc: x86@kernel.org
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1811081633160.1549@nanos.tec.linutronix.de
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 arch/x86/include/asm/traps.h             |    6 +++---
 arch/x86/kernel/cpu/mcheck/mce_amd.c     |    5 +++--
 arch/x86/kernel/cpu/mcheck/therm_throt.c |    1 +
 arch/x86/kernel/cpu/mcheck/threshold.c   |    3 ++-
 4 files changed, 9 insertions(+), 6 deletions(-)

--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -121,9 +121,9 @@ extern int panic_on_unrecovered_nmi;
 
 void math_emulate(struct math_emu_info *);
 #ifndef CONFIG_X86_32
-asmlinkage void smp_thermal_interrupt(void);
-asmlinkage void smp_threshold_interrupt(void);
-asmlinkage void smp_deferred_error_interrupt(void);
+asmlinkage void smp_thermal_interrupt(struct pt_regs *regs);
+asmlinkage void smp_threshold_interrupt(struct pt_regs *regs);
+asmlinkage void smp_deferred_error_interrupt(struct pt_regs *regs);
 #endif
 
 extern void ist_enter(struct pt_regs *regs);
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -23,6 +23,7 @@
 #include <linux/string.h>
 
 #include <asm/amd_nb.h>
+#include <asm/traps.h>
 #include <asm/apic.h>
 #include <asm/mce.h>
 #include <asm/msr.h>
@@ -92,7 +93,7 @@ static struct smca_bank_name smca_names[
 	[SMCA_SMU]	= { "smu",		"System Management Unit" },
 };
 
-const char *smca_get_name(enum smca_bank_types t)
+static const char *smca_get_name(enum smca_bank_types t)
 {
 	if (t >= N_SMCA_BANK_TYPES)
 		return NULL;
@@ -857,7 +858,7 @@ static inline void __smp_deferred_error_
 	deferred_error_int_vector();
 }
 
-asmlinkage __visible void __irq_entry smp_deferred_error_interrupt(void)
+asmlinkage __visible void __irq_entry smp_deferred_error_interrupt(struct pt_regs *regs)
 {
 	entering_irq();
 	__smp_deferred_error_interrupt();
--- a/arch/x86/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c
@@ -25,6 +25,7 @@
 #include <linux/cpu.h>
 
 #include <asm/processor.h>
+#include <asm/traps.h>
 #include <asm/apic.h>
 #include <asm/mce.h>
 #include <asm/msr.h>
--- a/arch/x86/kernel/cpu/mcheck/threshold.c
+++ b/arch/x86/kernel/cpu/mcheck/threshold.c
@@ -5,6 +5,7 @@
 #include <linux/kernel.h>
 
 #include <asm/irq_vectors.h>
+#include <asm/traps.h>
 #include <asm/apic.h>
 #include <asm/mce.h>
 #include <asm/trace/irq_vectors.h>
@@ -23,7 +24,7 @@ static inline void __smp_threshold_inter
 	mce_threshold_vector();
 }
 
-asmlinkage __visible void __irq_entry smp_threshold_interrupt(void)
+asmlinkage __visible void __irq_entry smp_threshold_interrupt(struct pt_regs *regs)
 {
 	entering_irq();
 	__smp_threshold_interrupt();