From 934f585e928e250b9428fccdcb7c1e13a6c24e76 Mon Sep 17 00:00:00 2001 From: Julien Grall Date: Tue, 30 Apr 2013 18:29:13 +0100 Subject: [PATCH] xen: clear IRQ_NOAUTOEN and IRQ_NOREQUEST Reset the IRQ_NOAUTOEN and IRQ_NOREQUEST flags that are enabled by default on ARM. If IRQ_NOAUTOEN is set, __setup_irq doesn't call irq_startup, that is responsible for calling irq_unmask at startup time. As a result event channels remain masked. The clear is already made in bind_evtchn_to_irq with commit a8636c0 but was missing on all others bind_*_to_irq. Move the clear in xen_irq_info_common_init. On x86, IRQ_NOAUTOEN and IRQ_NOREQUEST are cleared by default, so this commit doesn't impact this architecture. Acked-by: Stefano Stabellini Signed-off-by: Julien Grall Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/events.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 94daed14d474..b6c4f1a6d1e2 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -167,6 +167,8 @@ static void xen_irq_info_common_init(struct irq_info *info, info->cpu = cpu; evtchn_to_irq[evtchn] = irq; + + irq_clear_status_flags(irq, IRQ_NOREQUEST|IRQ_NOAUTOEN); } static void xen_irq_info_evtchn_init(unsigned irq, @@ -874,7 +876,6 @@ int bind_evtchn_to_irq(unsigned int evtchn) struct irq_info *info = info_for_irq(irq); WARN_ON(info == NULL || info->type != IRQT_EVTCHN); } - irq_clear_status_flags(irq, IRQ_NOREQUEST|IRQ_NOAUTOEN); out: mutex_unlock(&irq_mapping_update_lock); -- 2.39.5