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Date:   Thu, 21 Dec 2017 20:50:05 +0000
From:   Jeremy Cline <jeremy@...ine.org>
To:     "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jeremy Cline <jeremy@...ine.org>
Subject: [PATCH] scsi: sd: Use warn for logs about no caching info

When no caching mode information can be found for a disk, use the
warning log level rather than error. It is common for this to occur
with cheap USB sticks.

Signed-off-by: Jeremy Cline <jeremy@...ine.org>
---
 drivers/scsi/sd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a028ab3322a9..9838d94b047e 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2789,7 +2789,7 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
 			}
 		}
 
-		sd_first_printk(KERN_ERR, sdkp, "No Caching mode page found\n");
+		sd_first_printk(KERN_WARNING, sdkp, "No Caching mode page found\n");
 		goto defaults;
 
 	Page_found:
@@ -2844,7 +2844,7 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
 				"Assuming drive cache: write back\n");
 		sdkp->WCE = 1;
 	} else {
-		sd_first_printk(KERN_ERR, sdkp,
+		sd_first_printk(KERN_WARNING, sdkp,
 				"Assuming drive cache: write through\n");
 		sdkp->WCE = 0;
 	}
-- 
2.14.3

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