Commit 40c9c62c authored by Helge Deller's avatar Helge Deller
Browse files

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



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

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
parent 22552344

arch/parisc/include/asm/irqflags.h

+5 −0
Original line number Diff line number Diff line
@@ -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");

}