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cciss: cleanup interrupt_not_for_us 

cciss: cleanup interrupt_not_for_us
In the case of MSI/MSIX interrutps, we don't need to check
if the interrupt is for us, and in the case of the intx interrupt
handler, when checking if the interrupt is for us, we don't need
to check if we're using MSI/MSIX, we know we're not.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Stephen M. Cameron 2010-07-19 13:46:54 -05:00 committed by Jens Axboe
parent b2a4a43dba
commit 8112586063
1 changed files with 1 additions and 14 deletions
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15
drivers/block/cciss.c
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@ -3376,8 +3376,7 @@ static inline int interrupt_pending(ctlr_info_t *h)
static inline long interrupt_not_for_us(ctlr_info_t *h)
{
return !(h->msi_vector || h->msix_vector) &&
((h->access.intr_pending(h) == 0) ||
return ((h->access.intr_pending(h) == 0) ||
(h->interrupts_enabled == 0));
}
@ -3470,10 +3469,6 @@ static irqreturn_t do_cciss_intx(int irq, void *dev_id)
if (interrupt_not_for_us(h))
return IRQ_NONE;
/*
* If there are completed commands in the completion queue,
* we had better do something about it.
*/
spin_lock_irqsave(&h->lock, flags);
while (interrupt_pending(h)) {
raw_tag = get_next_completion(h);
@ -3484,7 +3479,6 @@ static irqreturn_t do_cciss_intx(int irq, void *dev_id)
raw_tag = process_nonindexed_cmd(h, raw_tag);
}
}
spin_unlock_irqrestore(&h->lock, flags);
return IRQ_HANDLED;
}
@ -3498,12 +3492,6 @@ static irqreturn_t do_cciss_msix_intr(int irq, void *dev_id)
unsigned long flags;
u32 raw_tag;
if (interrupt_not_for_us(h))
return IRQ_NONE;
/*
* If there are completed commands in the completion queue,
* we had better do something about it.
*/
spin_lock_irqsave(&h->lock, flags);
raw_tag = get_next_completion(h);
while (raw_tag != FIFO_EMPTY) {
@ -3512,7 +3500,6 @@ static irqreturn_t do_cciss_msix_intr(int irq, void *dev_id)
else
raw_tag = process_nonindexed_cmd(h, raw_tag);
}
spin_unlock_irqrestore(&h->lock, flags);
return IRQ_HANDLED;
}