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>

drivers/block/cciss.c

@@ -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;
 }