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authorSteven Rostedt <srostedt@redhat.com>2011-07-24 10:47:58 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-07-24 10:48:00 +0200
commitf433c4aec9999d1bf2ed8c328196f3b0ad5f75db (patch)
tree8bdce41f37b46bdb9e23638fae5aedc5eff72270 /arch/s390
parent284ecb00644cf28e5f530f92b4f820cb78f023aa (diff)
[S390] irqs: Do not trace arch_local_{*,irq_*} functions
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. Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/irqflags.h16
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
index 865d6d891ac..38fdf451feb 100644
--- a/arch/s390/include/asm/irqflags.h
+++ b/arch/s390/include/asm/irqflags.h
@@ -29,42 +29,42 @@
})
/* set system mask. */
-static inline void __arch_local_irq_ssm(unsigned long flags)
+static inline notrace void __arch_local_irq_ssm(unsigned long flags)
{
asm volatile("ssm %0" : : "Q" (flags) : "memory");
}
-static inline unsigned long arch_local_save_flags(void)
+static inline notrace unsigned long arch_local_save_flags(void)
{
return __arch_local_irq_stosm(0x00);
}
-static inline unsigned long arch_local_irq_save(void)
+static inline notrace unsigned long arch_local_irq_save(void)
{
return __arch_local_irq_stnsm(0xfc);
}
-static inline void arch_local_irq_disable(void)
+static inline notrace void arch_local_irq_disable(void)
{
arch_local_irq_save();
}
-static inline void arch_local_irq_enable(void)
+static inline notrace void arch_local_irq_enable(void)
{
__arch_local_irq_stosm(0x03);
}
-static inline void arch_local_irq_restore(unsigned long flags)
+static inline notrace void arch_local_irq_restore(unsigned long flags)
{
__arch_local_irq_ssm(flags);
}
-static inline bool arch_irqs_disabled_flags(unsigned long flags)
+static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
{
return !(flags & (3UL << (BITS_PER_LONG - 8)));
}
-static inline bool arch_irqs_disabled(void)
+static inline notrace bool arch_irqs_disabled(void)
{
return arch_irqs_disabled_flags(arch_local_save_flags());
}