提交 57643c71 编写于 作者: B Boaz Harrosh 提交者: James Bottomley

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

 - convert to accessors and !use_sg cleanup
Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com>
Acked-by: NRandy Dunlap <randy.dunlap@oracle.com>
Tested-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
上级 74286a3c
......@@ -750,18 +750,16 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
cmd->SCp.phase++;
case 4: /* Phase 4 - Setup scatter/gather buffers */
if (cmd->use_sg) {
/* if many buffers are available, start filling the first */
cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
if (scsi_bufflen(cmd)) {
cmd->SCp.buffer = scsi_sglist(cmd);
cmd->SCp.this_residual = cmd->SCp.buffer->length;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
} else {
/* else fill the only available buffer */
cmd->SCp.buffer = NULL;
cmd->SCp.this_residual = cmd->request_bufflen;
cmd->SCp.ptr = cmd->request_buffer;
cmd->SCp.this_residual = 0;
cmd->SCp.ptr = NULL;
}
cmd->SCp.buffers_residual = cmd->use_sg - 1;
cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
cmd->SCp.phase++;
case 5: /* Phase 5 - Data transfer stage */
......
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