Commit 25fcf94a authored by Finn Thain's avatar Finn Thain Committed by Martin K. Petersen

Revert "scsi: ncr5380: Increase register polling limit"

This reverts commit 4822827a.

The purpose of that commit was to suppress a timeout warning message which
appeared to be caused by target latency. But suppressing the warning is
undesirable as the warning may indicate a messed up transfer count.

Another problem with that commit is that 15 ms is too long to keep
interrupts disabled as interrupt latency can cause system clock drift and
other problems.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: stable@vger.kernel.org
Fixes: 4822827a ("scsi: ncr5380: Increase register polling limit")
Signed-off-by: default avatarFinn Thain <fthain@telegraphics.com.au>
Tested-by: default avatarStan Johnson <userm57@yahoo.com>
Tested-by: default avatarMichael Schmitz <schmitzmic@gmail.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 5da1faa0
...@@ -235,7 +235,7 @@ struct NCR5380_cmd { ...@@ -235,7 +235,7 @@ struct NCR5380_cmd {
#define NCR5380_PIO_CHUNK_SIZE 256 #define NCR5380_PIO_CHUNK_SIZE 256
/* Time limit (ms) to poll registers when IRQs are disabled, e.g. during PDMA */ /* Time limit (ms) to poll registers when IRQs are disabled, e.g. during PDMA */
#define NCR5380_REG_POLL_TIME 15 #define NCR5380_REG_POLL_TIME 10
static inline struct scsi_cmnd *NCR5380_to_scmd(struct NCR5380_cmd *ncmd_ptr) static inline struct scsi_cmnd *NCR5380_to_scmd(struct NCR5380_cmd *ncmd_ptr)
{ {
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment