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authorFinn Thain <fthain@telegraphics.com.au>2016-10-10 00:46:53 -0400
committerMartin K. Petersen <martin.petersen@oracle.com>2016-11-08 17:29:48 -0500
commit7c60663143c29ea64f51e692f950f8619e0e4c77 (patch)
treeffbf801aafc04514ec6ae720998d64b26364bbff /drivers/scsi/arm
parentd5d37a0ab13b8f4ccfa58a4e852e19bcbf47ed5e (diff)
downloadlinux-7c60663143c29ea64f51e692f950f8619e0e4c77.tar.bz2
scsi: ncr5380: Expedite register polling
Avoid the call to NCR5380_poll_politely2() when possible. The call is easily short-circuited on the PIO fast path, using the inline wrapper. This requires that the NCR5380_read macro be made available before any #include "NCR5380.h" so a few declarations have to be moved too. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.com> Tested-by: Ondrej Zary <linux@rainbow-software.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/arm')
-rw-r--r--drivers/scsi/arm/cumana_1.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/arm/cumana_1.c b/drivers/scsi/arm/cumana_1.c
index ae1d4c6786de..fb7600dec5be 100644
--- a/drivers/scsi/arm/cumana_1.c
+++ b/drivers/scsi/arm/cumana_1.c
@@ -29,6 +29,10 @@
#define NCR5380_implementation_fields \
unsigned ctrl
+struct NCR5380_hostdata;
+static u8 cumanascsi_read(struct NCR5380_hostdata *, unsigned int);
+static void cumanascsi_write(struct NCR5380_hostdata *, unsigned int, u8);
+
#include "../NCR5380.h"
#define CTRL 0x16fc