From 438af51c642926f1c1844846bee1c3fb568dcd64 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Wed, 23 Mar 2016 21:10:18 +1100 Subject: ncr5380: Adopt uniform DMA setup convention Standardize the DMA setup hooks so that the DMA implementation in atari_NCR5380.c can be reconciled with pseudo DMA implementation in NCR5380.c. Calls to NCR5380_dma_recv_setup() and NCR5380_dma_send_setup() return a negative value on failure, zero on PDMA transfer success and a positive byte count for DMA setup success. This convention is not entirely new, but is now applied consistently. Also remove a pointless Status Register access: the *phase assignment is redundant because after NCR5380_transfer_dma() returns control to NCR5380_information_transfer(), that routine then returns control to NCR5380_main(), which means *phase is dead. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Michael Schmitz Tested-by: Ondrej Zary Signed-off-by: Martin K. Petersen --- drivers/scsi/atari_scsi.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/scsi/atari_scsi.c') diff --git a/drivers/scsi/atari_scsi.c b/drivers/scsi/atari_scsi.c index 41ddd95cebe6..5a81cec79a59 100644 --- a/drivers/scsi/atari_scsi.c +++ b/drivers/scsi/atari_scsi.c @@ -527,9 +527,6 @@ static unsigned long atari_scsi_dma_setup(struct Scsi_Host *instance, */ dma_cache_maintenance(addr, count, dir); - if (count == 0) - printk(KERN_NOTICE "SCSI warning: DMA programmed for 0 bytes !\n"); - if (IS_A_TT()) { tt_scsi_dma.dma_ctrl = dir; SCSI_DMA_WRITE_P(dma_addr, addr); -- cgit v1.2.3