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authorMax Filippov <jcmvbkbc@gmail.com>2019-01-25 01:51:28 +0100
committerMax Filippov <jcmvbkbc@gmail.com>2019-01-26 11:02:14 +0100
commitbb6652363be0415578ec4a8794cbe9403db9c336 (patch)
treec316a722fccfb6a738ca4f5b72f9138f2ea06101 /drivers/irqchip/irq-xtensa-pic.c
parentxtensa: SMP: mark each possible CPU as present (diff)
downloadlinux-bb6652363be0415578ec4a8794cbe9403db9c336.tar.xz
linux-bb6652363be0415578ec4a8794cbe9403db9c336.zip
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 <jcmvbkbc@gmail.com>
Diffstat (limited to 'drivers/irqchip/irq-xtensa-pic.c')
-rw-r--r--drivers/irqchip/irq-xtensa-pic.c6
1 files changed, 5 insertions, 1 deletions
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;
}