For SD cardreaders it's extremely common not to find cache on disk.
The following error messages are thus very common and don't point
to a real error one could try to fix but rather describe how the disk
works:
sd 0:0:0:0: [sda] No Caching mode page found
sd 0:0:0:0: [sda] Assuming drive cache: write through
Print these messages as warnings instead of errors.
Signed-off-by: Martin Kepplinger <martin.kepplinger@xxxxxxx>
---
drivers/scsi/sd.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index e7c52d6df4dc..db0171c81c5b 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2808,7 +2808,8 @@ 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:
@@ -2863,7 +2864,7 @@ 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;
}
--
2.20.1
