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authorFinn Thain <fthain@telegraphics.com.au>2016-03-23 21:10:15 +1100
committerMartin K. Petersen <martin.petersen@oracle.com>2016-04-11 16:57:09 -0400
commitf825e40b235f4daf1c9017366809d34c7f5c8c7f (patch)
tree73dfa8695b119f5330344924cf141fe5de7251ad /drivers/scsi/mac_scsi.c
parent1bb4600245d4d40245dd505ca17528e0b9a9ba8c (diff)
downloadlinux-f825e40b235f4daf1c9017366809d34c7f5c8c7f.tar.bz2
ncr5380: Remove PSEUDO_DMA macro
For those wrapper drivers which only implement Programmed IO, have NCR5380_dma_xfer_len() evaluate to zero. That allows PDMA to be easily disabled at run-time and so the PSEUDO_DMA macro is no longer needed. Also remove the spin counters used for debugging pseudo DMA drivers. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.com> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Tested-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mac_scsi.c')
-rw-r--r--drivers/scsi/mac_scsi.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c
index a8f5433b515e..1e0d07ac83a1 100644
--- a/drivers/scsi/mac_scsi.c
+++ b/drivers/scsi/mac_scsi.c
@@ -28,8 +28,6 @@
/* Definitions for the core NCR5380 driver. */
-#define PSEUDO_DMA
-
#define NCR5380_implementation_fields unsigned char *pdma_base
#define NCR5380_read(reg) macscsi_read(instance, reg)
@@ -46,8 +44,6 @@
#define NCR5380_abort macscsi_abort
#define NCR5380_bus_reset macscsi_bus_reset
#define NCR5380_info macscsi_info
-#define NCR5380_show_info macscsi_show_info
-#define NCR5380_write_info macscsi_write_info
#include "NCR5380.h"
@@ -111,7 +107,6 @@ static int __init mac_scsi_setup(char *str)
__setup("mac5380=", mac_scsi_setup);
#endif /* !MODULE */
-#ifdef PSEUDO_DMA
/*
Pseudo-DMA: (Ove Edlund)
The code attempts to catch bus errors that occur if one for example
@@ -303,7 +298,6 @@ static int macscsi_pwrite(struct Scsi_Host *instance,
return 0;
}
-#endif
static int macscsi_dma_xfer_len(struct Scsi_Host *instance,
struct scsi_cmnd *cmd)
@@ -324,8 +318,6 @@ static int macscsi_dma_xfer_len(struct Scsi_Host *instance,
static struct scsi_host_template mac_scsi_template = {
.module = THIS_MODULE,
.proc_name = DRV_MODULE_NAME,
- .show_info = macscsi_show_info,
- .write_info = macscsi_write_info,
.name = "Macintosh NCR5380 SCSI",
.info = macscsi_info,
.queuecommand = macscsi_queue_command,
@@ -351,9 +343,7 @@ static int __init mac_scsi_probe(struct platform_device *pdev)
if (!pio_mem)
return -ENODEV;
-#ifdef PSEUDO_DMA
pdma_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-#endif
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);