[PATCH 2/7] scsi/nsp32: don't pass large values into udelay

From: mathieu . poirier
Date: Fri May 11 2012 - 18:13:04 EST


From: Arnd Bergmann <arnd@xxxxxxxx>

This results in __bad_udelay warnings on some architectures.
Found on ARM randconfig builds.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
---
drivers/scsi/nsp32.c | 3 ++-
drivers/scsi/nsp32.h | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index 62b6168..cc36543 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -2926,7 +2926,8 @@ static void nsp32_do_bus_reset(nsp32_hw_data *data)
* reset SCSI bus
*/
nsp32_write1(base, SCSI_BUS_CONTROL, BUSCTL_RST);
- udelay(RESET_HOLD_TIME);
+ /* FIXME: we should not run with IRQs disabled for 10ms here */
+ mdelay(RESET_HOLD_TIME);
nsp32_write1(base, SCSI_BUS_CONTROL, 0);
for(i = 0; i < 5; i++) {
intrdat = nsp32_read2(base, IRQ_STATUS); /* dummy read */
diff --git a/drivers/scsi/nsp32.h b/drivers/scsi/nsp32.h
index c022182..b2b3dc6 100644
--- a/drivers/scsi/nsp32.h
+++ b/drivers/scsi/nsp32.h
@@ -605,7 +605,7 @@ typedef struct _nsp32_hw_data {
/*
* TIME definition
*/
-#define RESET_HOLD_TIME 10000 /* reset time in us (SCSI-2 says the
+#define RESET_HOLD_TIME 10 /* reset time in ms (SCSI-2 says the
minimum is 25us) */
#define SEL_TIMEOUT_TIME 10000 /* 250ms defined in SCSI specification
(25.6us/1unit) */
--
1.7.5.4

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