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sparc/irqs: Do not trace arch_local_{*,irq_*} functions

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Do not trace arch_local_save_flags(), arch_local_irq_*() and friends.
Although they are marked inline, gcc may still make a function out of
them and add it to the pool of functions that are traced by the function
tracer. This can cause undesirable results (kernel panic, triple faults,
etc).

Add the notrace notation to prevent them from ever being traced.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steven Rostedt 2011-07-06 08:00:29 -07:00 committed by David S. Miller
parent a2fa83faf4
commit 18d85bc558
2 changed files with 11 additions and 11 deletions
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8
arch/sparc/include/asm/irqflags_32.h
View File

@ -18,7 +18,7 @@ extern void arch_local_irq_restore(unsigned long);
extern unsigned long arch_local_irq_save(void); extern unsigned long arch_local_irq_save(void);
extern void arch_local_irq_enable(void); extern void arch_local_irq_enable(void);
static inline unsigned long arch_local_save_flags(void) static inline notrace unsigned long arch_local_save_flags(void)
{ {
unsigned long flags; unsigned long flags;
@ -26,17 +26,17 @@ static inline unsigned long arch_local_save_flags(void)
return flags; return flags;
} }
static inline void arch_local_irq_disable(void) static inline notrace void arch_local_irq_disable(void)
{ {
arch_local_irq_save(); arch_local_irq_save();
} }
static inline bool arch_irqs_disabled_flags(unsigned long flags) static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
{ {
return (flags & PSR_PIL) != 0; return (flags & PSR_PIL) != 0;
} }
static inline bool arch_irqs_disabled(void) static inline notrace bool arch_irqs_disabled(void)
{ {
return arch_irqs_disabled_flags(arch_local_save_flags()); return arch_irqs_disabled_flags(arch_local_save_flags());
} }

14
arch/sparc/include/asm/irqflags_64.h
View File

@ -14,7 +14,7 @@
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
static inline unsigned long arch_local_save_flags(void) static inline notrace unsigned long arch_local_save_flags(void)
{ {
unsigned long flags; unsigned long flags;
@ -26,7 +26,7 @@ static inline unsigned long arch_local_save_flags(void)
return flags; return flags;
} }
static inline void arch_local_irq_restore(unsigned long flags) static inline notrace void arch_local_irq_restore(unsigned long flags)
{ {
__asm__ __volatile__( __asm__ __volatile__(
"wrpr %0, %%pil" "wrpr %0, %%pil"
@ -36,7 +36,7 @@ static inline void arch_local_irq_restore(unsigned long flags)
); );
} }
static inline void arch_local_irq_disable(void) static inline notrace void arch_local_irq_disable(void)
{ {
__asm__ __volatile__( __asm__ __volatile__(
"wrpr %0, %%pil" "wrpr %0, %%pil"
@ -46,7 +46,7 @@ static inline void arch_local_irq_disable(void)
); );
} }
static inline void arch_local_irq_enable(void) static inline notrace void arch_local_irq_enable(void)
{ {
__asm__ __volatile__( __asm__ __volatile__(
"wrpr 0, %%pil" "wrpr 0, %%pil"
@ -56,17 +56,17 @@ static inline void arch_local_irq_enable(void)
); );
} }
static inline int arch_irqs_disabled_flags(unsigned long flags) static inline notrace int arch_irqs_disabled_flags(unsigned long flags)
{ {
return (flags > 0); return (flags > 0);
} }
static inline int arch_irqs_disabled(void) static inline notrace int arch_irqs_disabled(void)
{ {
return arch_irqs_disabled_flags(arch_local_save_flags()); return arch_irqs_disabled_flags(arch_local_save_flags());
} }
static inline unsigned long arch_local_irq_save(void) static inline notrace unsigned long arch_local_irq_save(void)
{ {
unsigned long flags, tmp; unsigned long flags, tmp;