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18d85bc558
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>
47 lines
1019 B
C
47 lines
1019 B
C
/*
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* include/asm/irqflags.h
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*
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* IRQ flags handling
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*
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* This file gets included from lowlevel asm headers too, to provide
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* wrapped versions of the local_irq_*() APIs, based on the
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* arch_local_irq_*() functions from the lowlevel headers.
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*/
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#ifndef _ASM_IRQFLAGS_H
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#define _ASM_IRQFLAGS_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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extern void arch_local_irq_restore(unsigned long);
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extern unsigned long arch_local_irq_save(void);
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extern void arch_local_irq_enable(void);
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static inline notrace unsigned long arch_local_save_flags(void)
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{
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unsigned long flags;
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asm volatile("rd %%psr, %0" : "=r" (flags));
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return flags;
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}
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static inline notrace void arch_local_irq_disable(void)
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{
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arch_local_irq_save();
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}
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static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
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{
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return (flags & PSR_PIL) != 0;
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}
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static inline notrace bool arch_irqs_disabled(void)
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{
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return arch_irqs_disabled_flags(arch_local_save_flags());
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}
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#endif /* (__ASSEMBLY__) */
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#endif /* !(_ASM_IRQFLAGS_H) */
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