From: Finn Thain Date: Fri, 20 Nov 2020 04:39:56 +0000 (+1100) Subject: scsi: NCR5380: Reduce NCR5380_maybe_release_dma_irq() call sites X-Git-Tag: microblaze-v5.12~111^2~114 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=bdd1cc0377d3ce96683d178f30714da478f6a955;p=linux-2.6-microblaze.git scsi: NCR5380: Reduce NCR5380_maybe_release_dma_irq() call sites Refactor to avoid needless calls to NCR5380_maybe_release_dma_irq(). This makes the machine code smaller and the source more readable. Link: https://lore.kernel.org/r/c1317ae8fdcb498460de5d7ea0bd62a42f5eeca8.1605847196.git.fthain@telegraphics.com.au Tested-by: Michael Schmitz Reviewed-by: Michael Schmitz Signed-off-by: Finn Thain Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index ea4b5749e7da..d597d7493a62 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -725,7 +725,6 @@ static void NCR5380_main(struct work_struct *work) if (!NCR5380_select(instance, cmd)) { dsprintk(NDEBUG_MAIN, instance, "main: select complete\n"); - maybe_release_dma_irq(instance); } else { dsprintk(NDEBUG_MAIN | NDEBUG_QUEUES, instance, "main: select failed, returning %p to queue\n", cmd); @@ -737,8 +736,10 @@ static void NCR5380_main(struct work_struct *work) NCR5380_information_transfer(instance); done = 0; } - if (!hostdata->connected) + if (!hostdata->connected) { NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask); + maybe_release_dma_irq(instance); + } spin_unlock_irq(&hostdata->lock); if (!done) cond_resched(); @@ -1844,7 +1845,6 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) */ NCR5380_write(TARGET_COMMAND_REG, 0); - maybe_release_dma_irq(instance); return; case MESSAGE_REJECT: /* Accept message by clearing ACK */ @@ -1976,7 +1976,6 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) hostdata->busy[scmd_id(cmd)] &= ~(1 << cmd->device->lun); cmd->result = DID_ERROR << 16; complete_cmd(instance, cmd); - maybe_release_dma_irq(instance); return; } msgout = NOP; @@ -2312,7 +2311,6 @@ out: } queue_work(hostdata->work_q, &hostdata->main_task); - maybe_release_dma_irq(instance); spin_unlock_irqrestore(&hostdata->lock, flags); return result; @@ -2368,7 +2366,6 @@ static void bus_reset_cleanup(struct Scsi_Host *instance) hostdata->dma_len = 0; queue_work(hostdata->work_q, &hostdata->main_task); - maybe_release_dma_irq(instance); } /**