提交 f2c1afa5 编写于 作者: B Boaz Harrosh 提交者: James Bottomley

[SCSI] a2091: convert to accessors and !use_sg cleanup

 - convert to accessors and !use_sg cleanup
Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
上级 7410d849
......@@ -73,18 +73,9 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
}
if (!dir_in) {
/* copy to bounce buffer for a write */
if (cmd->use_sg)
#if 0
panic ("scsi%ddma: incomplete s/g support",
instance->host_no);
#else
/* copy to bounce buffer for a write */
memcpy (HDATA(instance)->dma_bounce_buffer,
cmd->SCp.ptr, cmd->SCp.this_residual);
#endif
else
memcpy (HDATA(instance)->dma_bounce_buffer,
cmd->request_buffer, cmd->request_bufflen);
}
}
......@@ -144,30 +135,13 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
/* copy from a bounce buffer, if necessary */
if (status && HDATA(instance)->dma_bounce_buffer) {
if (SCpnt && SCpnt->use_sg) {
#if 0
panic ("scsi%d: incomplete s/g support",
instance->host_no);
#else
if( HDATA(instance)->dma_dir )
if( HDATA(instance)->dma_dir )
memcpy (SCpnt->SCp.ptr,
HDATA(instance)->dma_bounce_buffer,
SCpnt->SCp.this_residual);
kfree (HDATA(instance)->dma_bounce_buffer);
HDATA(instance)->dma_bounce_buffer = NULL;
HDATA(instance)->dma_bounce_len = 0;
#endif
} else {
if (HDATA(instance)->dma_dir && SCpnt)
memcpy (SCpnt->request_buffer,
HDATA(instance)->dma_bounce_buffer,
SCpnt->request_bufflen);
kfree (HDATA(instance)->dma_bounce_buffer);
HDATA(instance)->dma_bounce_buffer = NULL;
HDATA(instance)->dma_bounce_len = 0;
}
kfree (HDATA(instance)->dma_bounce_buffer);
HDATA(instance)->dma_bounce_buffer = NULL;
HDATA(instance)->dma_bounce_len = 0;
}
}
......
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