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Message-ID: <lsq.1544392233.90708298@decadent.org.uk>
Date:   Sun, 09 Dec 2018 21:50:33 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Alan Stern" <stern@...land.harvard.edu>,
        "Tim Anderson" <tsa@...lakesoftware.com>
Subject: [PATCH 3.16 198/328] USB: Add quirk to support DJI CineSSD

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

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

From: Tim Anderson <tsa@...lakesoftware.com>

commit f45681f9becaa65111ed0a691ccf080a0cd5feb8 upstream.

This device does not correctly handle the LPM operations.

Also, the device cannot handle ATA pass-through commands
and locks up when attempted while running in super speed.

This patch adds the equivalent quirk logic as found in uas.

Signed-off-by: Tim Anderson <tsa@...lakesoftware.com>
Acked-by: Alan Stern <stern@...land.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/usb/core/quirks.c          | 3 +++
 drivers/usb/storage/scsiglue.c     | 9 +++++++++
 drivers/usb/storage/unusual_devs.h | 7 +++++++
 3 files changed, 19 insertions(+)

--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -260,6 +260,9 @@ static const struct usb_device_id usb_qu
 	{ USB_DEVICE(0x2040, 0x7200), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
 
+	/* DJI CineSSD */
+	{ USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* INTEL VALUE SSD */
 	{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
 
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -341,6 +341,15 @@ static int queuecommand_lck(struct scsi_
 		return 0;
 	}
 
+	if ((us->fflags & US_FL_NO_ATA_1X) &&
+			(srb->cmnd[0] == ATA_12 || srb->cmnd[0] == ATA_16)) {
+		memcpy(srb->sense_buffer, usb_stor_sense_invalidCDB,
+		       sizeof(usb_stor_sense_invalidCDB));
+		srb->result = SAM_STAT_CHECK_CONDITION;
+		done(srb);
+		return 0;
+	}
+
 	/* enqueue the command and wake up the control thread */
 	srb->scsi_done = done;
 	us->srb = srb;
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2144,6 +2144,13 @@ UNUSUAL_DEV(  0x2735, 0x100b, 0x0000, 0x
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_GO_SLOW ),
 
+/* Reported-by: Tim Anderson <tsa@...lakesoftware.com> */
+UNUSUAL_DEV(  0x2ca3, 0x0031, 0x0000, 0x9999,
+		"DJI",
+		"CineSSD",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NO_ATA_1X),
+
 /* Reported by Frederic Marchal <frederic.marchal@...company.com>
  * Mio Moov 330
  */

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