linux-kernel - [PATCH 3.16 099/148] USB: uas: honor flag to avoid CAPACITY16

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Date:   Sat, 08 Feb 2020 18:20:38 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Oliver Neukum" <oneukum@...e.com>
Subject: [PATCH 3.16 099/148] USB: uas: honor flag to avoid CAPACITY16

3.16.82-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Oliver Neukum <oneukum@...e.com>

commit bff000cae1eec750d62e265c4ba2db9af57b17e1 upstream.

Copy the support over from usb-storage to get feature parity

Signed-off-by: Oliver Neukum <oneukum@...e.com>
Link: https://lore.kernel.org/r/20191114112758.32747-2-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/usb/storage/uas.c | 4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -991,6 +991,10 @@ static int uas_slave_configure(struct sc
 	if (devinfo->flags & US_FL_BROKEN_FUA)
 		sdev->broken_fua = 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.