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-rw-r--r--arch/x86/include/asm/cpufeature.h2
-rw-r--r--arch/x86/include/asm/extable.h8
-rw-r--r--arch/x86/include/asm/processor.h4
3 files changed, 9 insertions, 5 deletions
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 66d3e3b1d24d..ea34cc31b047 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -54,7 +54,7 @@ extern const char * const x86_power_flags[32];
extern const char * const x86_bug_flags[NBUGINTS*32];
#define test_cpu_cap(c, bit) \
- test_bit(bit, (unsigned long *)((c)->x86_capability))
+ arch_test_bit(bit, (unsigned long *)((c)->x86_capability))
/*
* There are 32 bits/features in each mask word. The high bits
diff --git a/arch/x86/include/asm/extable.h b/arch/x86/include/asm/extable.h
index 155c991ba95e..eeed395c3177 100644
--- a/arch/x86/include/asm/extable.h
+++ b/arch/x86/include/asm/extable.h
@@ -42,9 +42,13 @@ extern int ex_get_fixup_type(unsigned long ip);
extern void early_fixup_exception(struct pt_regs *regs, int trapnr);
#ifdef CONFIG_X86_MCE
-extern void ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr);
+extern void __noreturn ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr);
#else
-static inline void ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr) { }
+static inline void __noreturn ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr)
+{
+ for (;;)
+ cpu_relax();
+}
#endif
#if defined(CONFIG_BPF_JIT) && defined(CONFIG_X86_64)
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 91d0f93a00c7..356308c73951 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -559,7 +559,7 @@ static __always_inline void native_swapgs(void)
#endif
}
-static inline unsigned long current_top_of_stack(void)
+static __always_inline unsigned long current_top_of_stack(void)
{
/*
* We can't read directly from tss.sp0: sp0 on x86_32 is special in
@@ -569,7 +569,7 @@ static inline unsigned long current_top_of_stack(void)
return this_cpu_read_stable(cpu_current_top_of_stack);
}
-static inline bool on_thread_stack(void)
+static __always_inline bool on_thread_stack(void)
{
return (unsigned long)(current_top_of_stack() -
current_stack_pointer) < THREAD_SIZE;