scsi: introduce a quirk for false cache reporting
Some SATA to USB bridges fail to cooperate with some
drives resulting in no cache being present being reported
to the host. That causes the host to skip sending
a command to synchronize caches. That causes data loss
when the drive is powered down.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index aa35392..af3c7ee 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -338,6 +338,13 @@
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_NO_WP_DETECT),
+/* Reported by Egbert Eich <eich@suse.com> */
+UNUSUAL_DEV( 0x0480, 0xd010, 0x0100, 0x9999,
+ "Toshiba",
+ "External USB 3.0",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_ALWAYS_SYNC),
+
/* Patch submitted by Philipp Friedrich <philipp@void.at> */
UNUSUAL_DEV( 0x0482, 0x0100, 0x0100, 0x0100,
"Kyocera",