[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>
diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index abb1859..22f9131 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -4105,17 +4105,11 @@
switch (nego) {
case NS_SYNC:
- msgptr[msglen++] = EXTENDED_MESSAGE;
- msgptr[msglen++] = 3;
- msgptr[msglen++] = EXTENDED_SDTR;
- msgptr[msglen++] = tp->maxoffs ? tp->minsync : 0;
- msgptr[msglen++] = tp->maxoffs;
+ msglen += spi_populate_sync_msg(msgptr + msglen,
+ tp->maxoffs ? tp->minsync : 0, tp->maxoffs);
break;
case NS_WIDE:
- msgptr[msglen++] = EXTENDED_MESSAGE;
- msgptr[msglen++] = 2;
- msgptr[msglen++] = EXTENDED_WDTR;
- msgptr[msglen++] = tp->usrwide;
+ msglen += spi_populate_width_msg(msgptr + msglen, tp->usrwide);
break;
}
@@ -6989,12 +6983,7 @@
spi_offset(starget) = ofs;
ncr_setsync(np, cp, scntl3, (fak<<5)|ofs);
- np->msgout[0] = EXTENDED_MESSAGE;
- np->msgout[1] = 3;
- np->msgout[2] = EXTENDED_SDTR;
- np->msgout[3] = per;
- np->msgout[4] = ofs;
-
+ spi_populate_sync_msg(np->msgout, per, ofs);
cp->nego_status = NS_SYNC;
if (DEBUG_FLAGS & DEBUG_NEGO) {
@@ -7080,11 +7069,7 @@
spi_width(starget) = wide;
ncr_setwide(np, cp, wide, 1);
-
- np->msgout[0] = EXTENDED_MESSAGE;
- np->msgout[1] = 2;
- np->msgout[2] = EXTENDED_WDTR;
- np->msgout[3] = wide;
+ spi_populate_width_msg(np->msgout, wide);
np->msgin [0] = NOP;