diff options
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/chip.c | 14 | ||||
| -rw-r--r-- | kernel/irq/manage.c | 9 | ||||
| -rw-r--r-- | kernel/irq/resend.c | 5 | ||||
| -rw-r--r-- | kernel/irq/spurious.c | 2 |
4 files changed, 14 insertions, 16 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 1a239a83f925..43c62ca68c11 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -194,11 +194,14 @@ EXPORT_SYMBOL_GPL(set_irq_nested_thread); int irq_startup(struct irq_desc *desc) { - desc->status &= ~(IRQ_MASKED | IRQ_DISABLED); + desc->status &= ~IRQ_DISABLED; desc->depth = 0; - if (desc->irq_data.chip->irq_startup) - return desc->irq_data.chip->irq_startup(&desc->irq_data); + if (desc->irq_data.chip->irq_startup) { + int ret = desc->irq_data.chip->irq_startup(&desc->irq_data); + desc->status &= ~IRQ_MASKED; + return ret; + } irq_enable(desc); return 0; @@ -206,7 +209,7 @@ int irq_startup(struct irq_desc *desc) void irq_shutdown(struct irq_desc *desc) { - desc->status |= IRQ_MASKED | IRQ_DISABLED; + desc->status |= IRQ_DISABLED; desc->depth = 1; if (desc->irq_data.chip->irq_shutdown) desc->irq_data.chip->irq_shutdown(&desc->irq_data); @@ -214,10 +217,12 @@ void irq_shutdown(struct irq_desc *desc) desc->irq_data.chip->irq_disable(&desc->irq_data); else desc->irq_data.chip->irq_mask(&desc->irq_data); + desc->status |= IRQ_MASKED; } void irq_enable(struct irq_desc *desc) { + desc->status &= ~IRQ_DISABLED; if (desc->irq_data.chip->irq_enable) desc->irq_data.chip->irq_enable(&desc->irq_data); else @@ -227,6 +232,7 @@ void irq_enable(struct irq_desc *desc) void irq_disable(struct irq_desc *desc) { + desc->status |= IRQ_DISABLED; if (desc->irq_data.chip->irq_disable) { desc->irq_data.chip->irq_disable(&desc->irq_data); desc->status |= IRQ_MASKED; diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 2a6c6ee11a3f..78a566a9b39f 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -329,10 +329,8 @@ void __disable_irq(struct irq_desc *desc, unsigned int irq, bool suspend) desc->status |= IRQ_SUSPENDED; } - if (!desc->depth++) { - desc->status |= IRQ_DISABLED; + if (!desc->depth++) irq_disable(desc); - } } /** @@ -407,12 +405,11 @@ void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume) WARN(1, KERN_WARNING "Unbalanced enable for IRQ %d\n", irq); break; case 1: { - unsigned int status = desc->status & ~IRQ_DISABLED; - if (desc->status & IRQ_SUSPENDED) goto err_out; /* Prevent probing on this irq: */ - desc->status = status | IRQ_NOPROBE; + desc->status |= IRQ_NOPROBE; + irq_enable(desc); check_irq_resend(desc, irq); /* fall-through */ } diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c index 4bfe268dffe5..60b20261041b 100644 --- a/kernel/irq/resend.c +++ b/kernel/irq/resend.c @@ -56,11 +56,6 @@ static DECLARE_TASKLET(resend_tasklet, resend_irqs, 0); void check_irq_resend(struct irq_desc *desc, unsigned int irq) { /* - * Make sure the interrupt is enabled, before resending it: - */ - irq_enable(desc); - - /* * We do not resend level type interrupts. Level type * interrupts are resent by hardware when they are still * active. diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c index c300b8f6008d..89e5e16aca39 100644 --- a/kernel/irq/spurious.c +++ b/kernel/irq/spurious.c @@ -301,7 +301,7 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc, * Now kill the IRQ */ printk(KERN_EMERG "Disabling IRQ #%d\n", irq); - desc->status |= IRQ_DISABLED | IRQ_SPURIOUS_DISABLED; + desc->status |= IRQ_SPURIOUS_DISABLED; desc->depth++; irq_disable(desc); |