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parisc: Check if IRQs are disabled when calling arch_local_irq_restore()

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A trivial check to check if IRQs are on although they should be off.

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller 2023-05-26 08:33:02 +02:00
parent 2255234460
commit 40c9c62c85
1 changed files with 5 additions and 0 deletions
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5
arch/parisc/include/asm/irqflags.h
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@ -31,6 +31,11 @@ static inline unsigned long arch_local_irq_save(void)
static inline void arch_local_irq_restore(unsigned long flags)
{
/* warn if IRQs are on although they should be off */
if (IS_ENABLED(CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK))
if (arch_local_save_flags() & PSW_I)
asm volatile("break 6,6\n"); /* SPINLOCK_BREAK_INSN */
asm volatile("mtsm %0" : : "r" (flags) : "memory");
}