提交 a4cf30e1 编写于 作者: V Vitaly Kuznetsov 提交者: Martin K. Petersen

scsi_scan: don't dump trace when scsi_prep_async_scan() is called twice

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: NVitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: NK. Y. Srinivasan <kys@microsoft.com>
Tested-by: NAlex Ng <alexng@microsoft.com>
Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>
上级 abc01f7d
......@@ -1713,8 +1713,7 @@ 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;
}
......
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