diff options
| -rw-r--r-- | arch/i386/kernel/i8259.c | 1 | ||||
| -rw-r--r-- | arch/x86_64/kernel/i8259.c | 1 | ||||
| -rw-r--r-- | kernel/irq/chip.c | 17 |
3 files changed, 12 insertions, 7 deletions
diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c index 255b1af9a054..03abfdb1a6e4 100644 --- a/arch/i386/kernel/i8259.c +++ b/arch/i386/kernel/i8259.c @@ -41,6 +41,7 @@ static void mask_and_ack_8259A(unsigned int); static struct irq_chip i8259A_chip = { .name = "XT-PIC", .mask = disable_8259A_irq, + .disable = disable_8259A_irq, .unmask = enable_8259A_irq, .mask_ack = mask_and_ack_8259A, }; diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c index d73c79e821f1..01e2cf0bdeb1 100644 --- a/arch/x86_64/kernel/i8259.c +++ b/arch/x86_64/kernel/i8259.c @@ -103,6 +103,7 @@ static void mask_and_ack_8259A(unsigned int); static struct irq_chip i8259A_chip = { .name = "XT-PIC", .mask = disable_8259A_irq, + .disable = disable_8259A_irq, .unmask = enable_8259A_irq, .mask_ack = mask_and_ack_8259A, }; diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 475e8a71bcdc..76a9106a0bf4 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -230,10 +230,6 @@ static void default_enable(unsigned int irq) */ static void default_disable(unsigned int irq) { - struct irq_desc *desc = irq_desc + irq; - - if (!(desc->status & IRQ_DELAYED_DISABLE)) - desc->chip->mask(irq); } /* @@ -298,13 +294,18 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc) if (unlikely(desc->status & IRQ_INPROGRESS)) goto out_unlock; - desc->status &= ~(IRQ_REPLAY | IRQ_WAITING); kstat_cpu(cpu).irqs[irq]++; action = desc->action; - if (unlikely(!action || (desc->status & IRQ_DISABLED))) + if (unlikely(!action || (desc->status & IRQ_DISABLED))) { + if (desc->chip->mask) + desc->chip->mask(irq); + desc->status &= ~(IRQ_REPLAY | IRQ_WAITING); + desc->status |= IRQ_PENDING; goto out_unlock; + } + desc->status &= ~(IRQ_REPLAY | IRQ_WAITING | IRQ_PENDING); desc->status |= IRQ_INPROGRESS; spin_unlock(&desc->lock); @@ -396,11 +397,13 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc) /* * If its disabled or no action available - * keep it masked and get out of here + * then mask it and get out of here: */ action = desc->action; if (unlikely(!action || (desc->status & IRQ_DISABLED))) { desc->status |= IRQ_PENDING; + if (desc->chip->mask) + desc->chip->mask(irq); goto out; } |