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scsi: core: Avoid printing an error if target_alloc() returns -ENXIO

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[ Upstream commit 70edd2e6f652f67d854981fd67f9ad0f1deaea92 ]

Avoid printing a 'target allocation failed' error if the driver
target_alloc() callback function returns -ENXIO. This return value
indicates that the corresponding H:C:T:L entry is empty.

Removing this error reduces the scan time if the user issues SCAN_WILD_CARD
scan operation through sysfs parameter on a host with a lot of empty
H:C:T:L entries.

Avoiding the printk on -ENXIO matches the behavior of the other callback
functions during scanning.

Link: https://lore.kernel.org/r/20210726115402.1936-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sreekanth Reddy 2021-07-26 17:24:02 +05:30 committed by AuxXxilium
parent a5a333d14f
commit 294ae42459
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/scsi_scan.c
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@ -511,7 +511,8 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
error = shost->hostt->target_alloc(starget);
if(error) {
dev_printk(KERN_ERR, dev, "target allocation failed, error %d\n", error);
if (error != -ENXIO)
dev_err(dev, "target allocation failed, error %d\n", error);
/* don't want scsi_target_reap to do the final
* put because it will be under the host lock */
scsi_target_destroy(starget);