powerpc/fsl_booke: ensure SPEFloatingPointException() reenables interrupts (ef429124) · Commits · 戴 / test

SPEFloatingPointException() is the only exception handler which 'forgets' to re-enable interrupts. This patch makes sure it does. Suggested-by:

arch/powerpc/kernel/traps.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -2088,6 +2088,10 @@ void SPEFloatingPointException(struct pt_regs *regs)
		int code = FPE_FLTUNK;
		int err;

		/* We restore the interrupt state now */
		if (!arch_irq_disabled_regs(regs))
		local_irq_enable();

		flush_spe_to_thread(current);

		spefscr = current->thread.spefscr;
		@@ -2133,6 +2137,10 @@ void SPEFloatingPointRoundException(struct pt_regs *regs)
		extern int speround_handler(struct pt_regs *regs);
		int err;

		/* We restore the interrupt state now */
		if (!arch_irq_disabled_regs(regs))
		local_irq_enable();

		preempt_disable();
		if (regs->msr & MSR_SPE)
		giveup_spe(current);