lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20211013075050.3870354-1-martin.kepplinger@puri.sm>
Date:   Wed, 13 Oct 2021 09:50:50 +0200
From:   Martin Kepplinger <martin.kepplinger@...i.sm>
To:     martin.kepplinger@...i.sm
Cc:     bvanassche@....org, dgilbert@...erlog.com, jejb@...ux.ibm.com,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
        martin.petersen@...cle.com
Subject: [PATCH] scsi: sd: print write through due to no caching mode page as warning

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@...i.sm>
---

hi Bart and all who it may concern,

I only resending the same patch I sent in January before:
https://lore.kernel.org/linux-scsi/20210122083000.32598-1-martin.kepplinger@puri.sm/

I like it more when messages printed as errors point to real problems that
need fixing.

thanks,
                         martin




 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 a646d27df681..33ea36b41136 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2793,7 +2793,8 @@ 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:
@@ -2848,7 +2849,7 @@ 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;
 	}
-- 
2.30.2

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ