From bb6652363be0415578ec4a8794cbe9403db9c336 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Thu, 24 Jan 2019 16:51:28 -0800 Subject: [PATCH] drivers/irqchip: xtensa: add warning to irq_retrigger XEA2 and MX PIC can only retrigger software interrupts. Issue a warning if an interrupt of any other type is retriggered. Signed-off-by: Max Filippov --- drivers/irqchip/irq-xtensa-mx.c | 6 +++++- drivers/irqchip/irq-xtensa-pic.c | 6 +++++- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-xtensa-mx.c b/drivers/irqchip/irq-xtensa-mx.c index 5385f5768345..0bd3fe3b969e 100644 --- a/drivers/irqchip/irq-xtensa-mx.c +++ b/drivers/irqchip/irq-xtensa-mx.c @@ -113,7 +113,11 @@ static void xtensa_mx_irq_ack(struct irq_data *d) static int xtensa_mx_irq_retrigger(struct irq_data *d) { - xtensa_set_sr(1 << d->hwirq, intset); + unsigned int mask = 1u << d->hwirq; + + if (WARN_ON(mask & ~XCHAL_INTTYPE_MASK_SOFTWARE)) + return 0; + xtensa_set_sr(mask, intset); return 1; } diff --git a/drivers/irqchip/irq-xtensa-pic.c b/drivers/irqchip/irq-xtensa-pic.c index c200234dd2c9..ab12328be5ee 100644 --- a/drivers/irqchip/irq-xtensa-pic.c +++ b/drivers/irqchip/irq-xtensa-pic.c @@ -70,7 +70,11 @@ static void xtensa_irq_ack(struct irq_data *d) static int xtensa_irq_retrigger(struct irq_data *d) { - xtensa_set_sr(1 << d->hwirq, intset); + unsigned int mask = 1u << d->hwirq; + + if (WARN_ON(mask & ~XCHAL_INTTYPE_MASK_SOFTWARE)) + return 0; + xtensa_set_sr(mask, intset); return 1; }