[SCSI] Add spi_populate_*_msg functions

Introduce new helpers:
 - spi_populate_width_msg()
 - spi_populate_sync_msg()
 - spi_populate_ppr_msg()

and use them in drivers which already enable the SPI transport.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 1 insertions, 6 deletions

diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index cb2ee25f213f..67d78ed7119a 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -1708,12 +1708,7 @@ static void seldo_run(struct Scsi_Host *shpnt)
                 ADDMSGO(BUS_DEVICE_RESET);
         } else if (SYNCNEG==0 && SYNCHRONOUS) {
                 CURRENT_SC->SCp.phase |= syncneg;
-                ADDMSGO(EXTENDED_MESSAGE);
-                ADDMSGO(3);
-                ADDMSGO(EXTENDED_SDTR);
-                ADDMSGO(50);            /* 200ns */
-                ADDMSGO(8);             /* 8 byte req/ack offset */
-
+                MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8);
                 SYNCNEG=1;              /* negotiation in progress */
         }