linux-kernel - [tip:x86/cleanups] x86/mce: Fix -Wmissing-prototypes warnings

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Message-ID: <tip-83a204daa40315a38204493f60768910c8604e9c@git.kernel.org>
Date:   Tue, 13 Nov 2018 06:21:55 -0800
From:   tip-bot for Borislav Petkov <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, wang.yi59@....com.cn, bp@...e.de, mingo@...nel.org,
        matz@...e.de, linux-kernel@...r.kernel.org, tglx@...utronix.de
Subject: [tip:x86/cleanups] x86/mce: Fix -Wmissing-prototypes warnings

Commit-ID:  83a204daa40315a38204493f60768910c8604e9c
Gitweb:     https://git.kernel.org/tip/83a204daa40315a38204493f60768910c8604e9c
Author:     Borislav Petkov <bp@...e.de>
AuthorDate: Fri, 9 Nov 2018 23:13:13 +0100
Committer:  Borislav Petkov <bp@...e.de>
CommitDate: Tue, 13 Nov 2018 14:55:08 +0100

x86/mce: Fix -Wmissing-prototypes warnings

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@...e.de>
Cc: Yi Wang <wang.yi59@....com.cn>
Cc: Michael Matz <matz@...e.de>
Cc: x86@...nel.org
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1811081633160.1549@nanos.tec.linutronix.de
---
 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(-)

diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 3de69330e6c5..afbc87206886 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -104,9 +104,9 @@ 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);
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index dd33c357548f..9c8e2daa48cd 100644
--- 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>
@@ -99,7 +100,7 @@ static u32 smca_bank_addrs[MAX_NR_BANKS][NR_BLOCKS] __ro_after_init =
 	[0 ... MAX_NR_BANKS - 1] = { [0 ... NR_BLOCKS - 1] = -1 }
 };
 
-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;
@@ -825,7 +826,7 @@ static void __log_error(unsigned int bank, u64 status, u64 addr, u64 misc)
 	mce_log(&m);
 }
 
-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();
 	trace_deferred_error_apic_entry(DEFERRED_ERROR_VECTOR);
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c
index 2da67b70ba98..95a7cfa6de15 100644
--- 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>
diff --git a/arch/x86/kernel/cpu/mcheck/threshold.c b/arch/x86/kernel/cpu/mcheck/threshold.c
index 2b584b319eff..c21e0a1efd0f 100644
--- a/arch/x86/kernel/cpu/mcheck/threshold.c
+++ b/arch/x86/kernel/cpu/mcheck/threshold.c
@@ -6,6 +6,7 @@
 #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>
@@ -18,7 +19,7 @@ static void default_threshold_interrupt(void)
 
 void (*mce_threshold_vector)(void) = default_threshold_interrupt;
 
-asmlinkage __visible void __irq_entry smp_threshold_interrupt(void)
+asmlinkage __visible void __irq_entry smp_threshold_interrupt(struct pt_regs *regs)
 {
 	entering_irq();
 	trace_threshold_apic_entry(THRESHOLD_APIC_VECTOR);