[PATCH 4.9 097/199] USB: uas: honor flag to avoid CAPACITY16
From: Greg Kroah-Hartman
Date: Thu Dec 19 2019 - 13:46:05 EST
From: Oliver Neukum <oneukum@xxxxxxxx>
commit bff000cae1eec750d62e265c4ba2db9af57b17e1 upstream.
Copy the support over from usb-storage to get feature parity
Signed-off-by: Oliver Neukum <oneukum@xxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20191114112758.32747-2-oneukum@xxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/storage/uas.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -832,6 +832,10 @@ static int uas_slave_configure(struct sc
sdev->wce_default_on = 1;
}
+ /* Some disks cannot handle READ_CAPACITY_16 */
+ if (devinfo->flags & US_FL_NO_READ_CAPACITY_16)
+ sdev->no_read_capacity_16 = 1;
+
/*
* Some disks return the total number of blocks in response
* to READ CAPACITY rather than the highest block number.