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

 - convert to accessors and !use_sg cleanup
 - Not ready for sg-chaining

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index a3d0c6b149583156fda2f7e2267654c6aab9f47a..f97d172844be8e084cca57e3750752be77529816 100644 (file)
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -837,19 +837,16 @@ static int imm_engine(imm_struct *dev, struct scsi_cmnd *cmd)
 
                /* Phase 4 - Setup scatter/gather buffers */
        case 4:
-               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++;
                if (cmd->SCp.this_residual & 0x01)
                        cmd->SCp.this_residual++;