* [PATCH] scsi_scan: don't dump trace when scsi_prep_async_scan() is called twice
@ 2015-08-31 15:00 Vitaly Kuznetsov
0 siblings, 0 replies; only message in thread
From: Vitaly Kuznetsov @ 2015-08-31 15:00 UTC (permalink / raw)
To: James E.J. Bottomley
Cc: linux-scsi, linux-kernel, K. Y. Srinivasan, Long Li, Dexuan Cui
The only user of scsi_prep_async_scan() is scsi_scan_host() and it handles
the situation correctly. Move 'called twice' reporting to debug level as
well.
The issue is observed on Hyper-V: on any device add/remove event storvsc
driver calls scsi_scan_host() and in case previous scan is still running
we get the message and stack dump on console.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
drivers/scsi/scsi_scan.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index f9f3f82..01ad016 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1712,8 +1712,7 @@ static struct async_scan_data *scsi_prep_async_scan(struct Scsi_Host *shost)
return NULL;
if (shost->async_scan) {
- shost_printk(KERN_INFO, shost, "%s called twice\n", __func__);
- dump_stack();
+ shost_printk(KERN_DEBUG, shost, "%s called twice\n", __func__);
return NULL;
}
--
2.4.3
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