Re: [PATCH v3 3/3] usb: storage: update usb devices for write cache quirk in quirk list.

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Hello.

On 06/09/2012 09:41 PM, Namjae Jeon wrote:

Update information of Seagate Portable HDD and WD My Passport HDD in
quirk list.

Signed-off-by: Namjae Jeon<namjae.jeon@xxxxxxxxxxx>
Signed-off-by: Pankaj Kumar<pankaj.km@xxxxxxxxxxx>
Signed-off-by: Amit Sahrawat<a.sahrawat@xxxxxxxxxxx>
---
  drivers/usb/storage/unusual_devs.h |   24 ++++++++++++++++++++++++
  1 file changed, 24 insertions(+)

diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 1719886..64f0369 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1267,6 +1267,18 @@ UNUSUAL_DEV( 0x0af0, 0xd357, 0x0000, 0x0000,
  		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
  		0 ),

+/* Reported by Namjae Jeon<namjae.jeon@xxxxxxxxxxx>
+ * Even though write cache is enabled by default,
+ * SCSI driver assume that cache is not enabled
+ * which in turn might lead loss of data
                              ^ to the

+ * since data still will be in cache.
+ * So this entry is needed for assuming that cache is enabled.
+ */
+UNUSUAL_DEV(0x0bc2, 0x2300, 0x0000, 0x9999,
+		"Seagate",
+		"Portable HDD",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_WRITE_CACHE),
+
  /* Reported by Ben Efros<ben@xxxxxxxxxxxxx>  */
  UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000,
  		"Seagate",
@@ -1468,6 +1480,18 @@ UNUSUAL_DEV(  0x1058, 0x0704, 0x0000, 0x9999,
  		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
  		US_FL_SANE_SENSE),

+/* Reported by Namjae Jeon<namjae.jeon@xxxxxxxxxxx>
+ * Even though write cache is enabled by default,
+ * SCSI driver assume that cache is not enabled
+ * which in turn might lead loss of data
                              ^ to the

WBR, Sergei
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