From: Stephen M. Cameron Date: Mon, 19 Jul 2010 18:46:54 +0000 (-0500) Subject: cciss: cleanup interrupt_not_for_us X-Git-Tag: v2.6.36-rc1~288^2~39 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8112586063fe53958d60218631d661533f304504;p=profile%2Fivi%2Fkernel-x86-ivi.git 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 Signed-off-by: Jens Axboe --- diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 35a9f08c..fdf1b79 100644 --- a/drivers/block/cciss.c +++ b/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; }