From: Guo Ren <[email protected]> csky_mpintc_handler() ->handle_domain_irq() ->irq_exit() ->invoke_softirq() ->__do_softirq() ->local_irq_enable()
If new interrupt coming, it'll get into interrupt trap before return to csky_mpintc_handler(). So there is no need loop in csky_mpintc_handler. Signed-off-by: Guo Ren <[email protected]> Cc: Marc Zyngier <[email protected]> --- drivers/irqchip/irq-csky-mpintc.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/irqchip/irq-csky-mpintc.c b/drivers/irqchip/irq-csky-mpintc.c index 2740dd5..122cd43 100644 --- a/drivers/irqchip/irq-csky-mpintc.c +++ b/drivers/irqchip/irq-csky-mpintc.c @@ -75,11 +75,8 @@ static void csky_mpintc_handler(struct pt_regs *regs) { void __iomem *reg_base = this_cpu_read(intcl_reg); - do { - handle_domain_irq(root_domain, - readl_relaxed(reg_base + INTCL_RDYIR), - regs); - } while (readl_relaxed(reg_base + INTCL_HPPIR) & BIT(31)); + handle_domain_irq(root_domain, + readl_relaxed(reg_base + INTCL_RDYIR), regs); } static void csky_mpintc_enable(struct irq_data *d) -- 2.7.4
