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| author | Finn Thain <fthain@telegraphics.com.au> | 2016-03-23 11:10:11 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-04-11 22:57:09 +0200 |
| commit | 7e9ec8d9cc18a85e8a4c28aef9136867b46aba42 (patch) | |
| tree | 148980f186b221f01b26aad2466c4bda8204a2fb /drivers/scsi/g_NCR5380.c | |
| parent | g_ncr5380: Remove CONFIG_SCSI_GENERIC_NCR53C400 (diff) | |
| download | linux-7e9ec8d9cc18a85e8a4c28aef9136867b46aba42.tar.xz linux-7e9ec8d9cc18a85e8a4c28aef9136867b46aba42.zip | |
ncr5380: Remove FLAG_NO_PSEUDO_DMA where possible
Drivers that define PSEUDO_DMA also define NCR5380_dma_xfer_len.
The core driver must call NCR5380_dma_xfer_len which means
FLAG_NO_PSEUDO_DMA can be eradicated from the core driver.
dmx3191d doesn't define PSEUDO_DMA and has no use for FLAG_NO_PSEUDO_DMA,
so remove it there also.
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/g_NCR5380.c')
| -rw-r--r-- | drivers/scsi/g_NCR5380.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index 85ebe109d15d..b8fc26d9231d 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -712,10 +712,15 @@ static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, return 0; } -static int generic_NCR5380_dma_xfer_len(struct scsi_cmnd *cmd) +static int generic_NCR5380_dma_xfer_len(struct Scsi_Host *instance, + struct scsi_cmnd *cmd) { + struct NCR5380_hostdata *hostdata = shost_priv(instance); int transfersize = cmd->transfersize; + if (hostdata->flags & FLAG_NO_PSEUDO_DMA) + return 0; + /* Limit transfers to 32K, for xx400 & xx406 * pseudoDMA that transfers in 128 bytes blocks. */ |