<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/usb/class, branch v3.18.78</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>usb: cdc_acm: Add quirk for Elatec TWN3</title>
<updated>2017-10-27T08:17:23+00:00</updated>
<author>
<name>Maksim Salau</name>
<email>msalau@iotecha.com</email>
</author>
<published>2017-10-11T08:10:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=d3d493cf256700fe39876f3d785180e3c022b134'/>
<id>d3d493cf256700fe39876f3d785180e3c022b134</id>
<content type='text'>
commit 765fb2f181cad669f2beb87842a05d8071f2be85 upstream.

Elatec TWN3 has the union descriptor on data interface. This results in
failure to bind the device to the driver with the following log:
  usb 1-1.2: new full speed USB device using streamplug-ehci and address 4
  usb 1-1.2: New USB device found, idVendor=09d8, idProduct=0320
  usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
  usb 1-1.2: Product: RFID Device (COM)
  usb 1-1.2: Manufacturer: OEM
  cdc_acm 1-1.2:1.0: Zero length descriptor references
  cdc_acm: probe of 1-1.2:1.0 failed with error -22

Adding the NO_UNION_NORMAL quirk for the device fixes the issue.

`lsusb -v` of the device:

Bus 001 Device 003: ID 09d8:0320
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            2 Communications
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        32
  idVendor           0x09d8
  idProduct          0x0320
  bcdDevice            3.00
  iManufacturer           1 OEM
  iProduct                2 RFID Device (COM)
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           67
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              250mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      1 AT-commands (v.25ter)
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               2
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      CDC Header:
        bcdCDC               1.10
      CDC Call Management:
        bmCapabilities       0x03
          call management
          use DataInterface
        bDataInterface          1
      CDC ACM:
        bmCapabilities       0x06
          sends break
          line coding and serial state
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1
Device Status:     0x0000
  (Bus Powered)

Signed-off-by: Maksim Salau &lt;msalau@iotecha.com&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 765fb2f181cad669f2beb87842a05d8071f2be85 upstream.

Elatec TWN3 has the union descriptor on data interface. This results in
failure to bind the device to the driver with the following log:
  usb 1-1.2: new full speed USB device using streamplug-ehci and address 4
  usb 1-1.2: New USB device found, idVendor=09d8, idProduct=0320
  usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
  usb 1-1.2: Product: RFID Device (COM)
  usb 1-1.2: Manufacturer: OEM
  cdc_acm 1-1.2:1.0: Zero length descriptor references
  cdc_acm: probe of 1-1.2:1.0 failed with error -22

Adding the NO_UNION_NORMAL quirk for the device fixes the issue.

`lsusb -v` of the device:

Bus 001 Device 003: ID 09d8:0320
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            2 Communications
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        32
  idVendor           0x09d8
  idProduct          0x0320
  bcdDevice            3.00
  iManufacturer           1 OEM
  iProduct                2 RFID Device (COM)
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           67
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              250mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      1 AT-commands (v.25ter)
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               2
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      CDC Header:
        bcdCDC               1.10
      CDC Call Management:
        bmCapabilities       0x03
          call management
          use DataInterface
        bDataInterface          1
      CDC ACM:
        bmCapabilities       0x06
          sends break
          line coding and serial state
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1
Device Status:     0x0000
  (Bus Powered)

Signed-off-by: Maksim Salau &lt;msalau@iotecha.com&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>USB: cdc-acm: add device-id for quirky printer</title>
<updated>2017-07-27T22:03:26+00:00</updated>
<author>
<name>Johan Hovold</name>
<email>johan@kernel.org</email>
</author>
<published>2017-07-12T13:08:39+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=92491596ac5118ecb6ef906dc8597d76be3003db'/>
<id>92491596ac5118ecb6ef906dc8597d76be3003db</id>
<content type='text'>
commit fe855789d605590e57f9cd968d85ecce46f5c3fd upstream.

Add device-id entry for DATECS FP-2000 fiscal printer needing the
NO_UNION_NORMAL quirk.

Reported-by: Anton Avramov &lt;lukav@lukav.com&gt;
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit fe855789d605590e57f9cd968d85ecce46f5c3fd upstream.

Add device-id entry for DATECS FP-2000 fiscal printer needing the
NO_UNION_NORMAL quirk.

Reported-by: Anton Avramov &lt;lukav@lukav.com&gt;
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>cdc-acm: fix possible invalid access when processing notification</title>
<updated>2017-05-25T12:17:57+00:00</updated>
<author>
<name>Tobias Herzog</name>
<email>t-herzog@gmx.de</email>
</author>
<published>2017-03-30T20:15:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=4a98913621b4ac74c9653a1b308cc19de2e6bb28'/>
<id>4a98913621b4ac74c9653a1b308cc19de2e6bb28</id>
<content type='text'>
commit 1bb9914e1730417d530de9ed37e59efdc647146b upstream.

Notifications may only be 8 bytes long. Accessing the 9th and
10th byte of unimplemented/unknown notifications may be insecure.
Also check the length of known notifications before accessing anything
behind the 8th byte.

Signed-off-by: Tobias Herzog &lt;t-herzog@gmx.de&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 1bb9914e1730417d530de9ed37e59efdc647146b upstream.

Notifications may only be 8 bytes long. Accessing the 9th and
10th byte of unimplemented/unknown notifications may be insecure.
Also check the length of known notifications before accessing anything
behind the 8th byte.

Signed-off-by: Tobias Herzog &lt;t-herzog@gmx.de&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>USB: usbtmc: add missing endpoint sanity check</title>
<updated>2017-04-22T05:15:05+00:00</updated>
<author>
<name>Johan Hovold</name>
<email>johan@kernel.org</email>
</author>
<published>2017-03-14T16:55:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=7c83fd79a5478df4819b0753547d508209a3d21d'/>
<id>7c83fd79a5478df4819b0753547d508209a3d21d</id>
<content type='text'>
commit 687e0687f71ec00e0132a21fef802dee88c2f1ad upstream.

USBTMC devices are required to have a bulk-in and a bulk-out endpoint,
but the driver failed to verify this, something which could lead to the
endpoint addresses being taken from uninitialised memory.

Make sure to zero all private data as part of allocation, and add the
missing endpoint sanity check.

Note that this also addresses a more recently introduced issue, where
the interrupt-in-presence flag would also be uninitialised whenever the
optional interrupt-in endpoint is not present. This in turn could lead
to an interrupt urb being allocated, initialised and submitted based on
uninitialised values.

Fixes: dbf3e7f654c0 ("Implement an ioctl to support the USMTMC-USB488 READ_STATUS_BYTE operation.")
Fixes: 5b775f672cc9 ("USB: add USB test and measurement class driver")
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
[ johan: backport to v4.4 ]
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 687e0687f71ec00e0132a21fef802dee88c2f1ad upstream.

USBTMC devices are required to have a bulk-in and a bulk-out endpoint,
but the driver failed to verify this, something which could lead to the
endpoint addresses being taken from uninitialised memory.

Make sure to zero all private data as part of allocation, and add the
missing endpoint sanity check.

Note that this also addresses a more recently introduced issue, where
the interrupt-in-presence flag would also be uninitialised whenever the
optional interrupt-in endpoint is not present. This in turn could lead
to an interrupt urb being allocated, initialised and submitted based on
uninitialised values.

Fixes: dbf3e7f654c0 ("Implement an ioctl to support the USMTMC-USB488 READ_STATUS_BYTE operation.")
Fixes: 5b775f672cc9 ("USB: add USB test and measurement class driver")
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
[ johan: backport to v4.4 ]
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>USB: cdc-acm: fix TIOCMIWAIT</title>
<updated>2017-04-18T05:55:47+00:00</updated>
<author>
<name>Johan Hovold</name>
<email>johan@kernel.org</email>
</author>
<published>2016-11-08T12:10:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=003745315c0a0d8d77074bc41a47e513f21b3e97'/>
<id>003745315c0a0d8d77074bc41a47e513f21b3e97</id>
<content type='text'>
commit 18266403f3fe507f0246faa1d5432333a2f139ca upstream.

The TIOCMIWAIT implementation would return -EINVAL if any of the three
supported signals were included in the mask.

Instead of returning an error in case TIOCM_CTS is included, simply
drop the mask check completely, which is in accordance with how other
drivers implement this ioctl.

Fixes: 5a6a62bdb925 ("cdc-acm: add TIOCMIWAIT")
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 18266403f3fe507f0246faa1d5432333a2f139ca upstream.

The TIOCMIWAIT implementation would return -EINVAL if any of the three
supported signals were included in the mask.

Instead of returning an error in case TIOCM_CTS is included, simply
drop the mask check completely, which is in accordance with how other
drivers implement this ioctl.

Fixes: 5a6a62bdb925 ("cdc-acm: add TIOCMIWAIT")
Signed-off-by: Johan Hovold &lt;johan@kernel.org&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>USB: cdc-acm: add device id for GW Instek AFG-125</title>
<updated>2017-01-15T14:49:50+00:00</updated>
<author>
<name>Nathaniel Quillin</name>
<email>ndq@google.com</email>
</author>
<published>2016-12-05T14:53:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=707d28d3fd998530cc13017ce0ef493e780ffe82'/>
<id>707d28d3fd998530cc13017ce0ef493e780ffe82</id>
<content type='text'>
[ Upstream commit 301216044e4c27d5a7323c1fa766266fad00db5e ]

Add device-id entry for GW Instek AFG-125, which has a byte swapped
bInterfaceSubClass (0x20).

Signed-off-by: Nathaniel Quillin &lt;ndq@google.com&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;alexander.levin@verizon.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 301216044e4c27d5a7323c1fa766266fad00db5e ]

Add device-id entry for GW Instek AFG-125, which has a byte swapped
bInterfaceSubClass (0x20).

Signed-off-by: Nathaniel Quillin &lt;ndq@google.com&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;alexander.levin@verizon.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cdc-acm: fix wrong pipe type on rx interrupt xfers</title>
<updated>2016-09-01T02:05:44+00:00</updated>
<author>
<name>Gavin Li</name>
<email>git@thegavinli.com</email>
</author>
<published>2016-08-12T07:52:56+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=cc29c0338e43ebf3dfd2e625ed0381e4372db3dc'/>
<id>cc29c0338e43ebf3dfd2e625ed0381e4372db3dc</id>
<content type='text'>
[ Upstream commit add125054b8727103631dce116361668436ef6a7 ]

This fixes the "BOGUS urb xfer" warning logged by usb_submit_urb().

Signed-off-by: Gavin Li &lt;git@thegavinli.com&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;alexander.levin@verizon.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit add125054b8727103631dce116361668436ef6a7 ]

This fixes the "BOGUS urb xfer" warning logged by usb_submit_urb().

Signed-off-by: Gavin Li &lt;git@thegavinli.com&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;alexander.levin@verizon.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: cdc-acm: more sanity checking</title>
<updated>2016-04-18T12:49:35+00:00</updated>
<author>
<name>Oliver Neukum</name>
<email>oneukum@suse.com</email>
</author>
<published>2016-03-15T09:14:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=4576d5d818abff73e363027f52da09519573c924'/>
<id>4576d5d818abff73e363027f52da09519573c924</id>
<content type='text'>
[ Upstream commit 8835ba4a39cf53f705417b3b3a94eb067673f2c9 ]

An attack has become available which pretends to be a quirky
device circumventing normal sanity checks and crashes the kernel
by an insufficient number of interfaces. This patch adds a check
to the code path for quirky devices.

Signed-off-by: Oliver Neukum &lt;ONeukum@suse.com&gt;
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sasha.levin@oracle.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 8835ba4a39cf53f705417b3b3a94eb067673f2c9 ]

An attack has become available which pretends to be a quirky
device circumventing normal sanity checks and crashes the kernel
by an insufficient number of interfaces. This patch adds a check
to the code path for quirky devices.

Signed-off-by: Oliver Neukum &lt;ONeukum@suse.com&gt;
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sasha.levin@oracle.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cdc-acm:exclude Samsung phone 04e8:685d</title>
<updated>2016-02-15T20:42:29+00:00</updated>
<author>
<name>Oliver Neukum</name>
<email>oneukum@suse.com</email>
</author>
<published>2016-01-18T14:45:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=ceb53515ef27d53a3e0bb2dc3ff468da9293feaa'/>
<id>ceb53515ef27d53a3e0bb2dc3ff468da9293feaa</id>
<content type='text'>
[ Upstream commit e912e685f372ab62a2405a1acd923597f524e94a ]

This phone needs to be handled by a specialised firmware tool
and is reported to crash irrevocably if cdc-acm takes it.

Signed-off-by: Oliver Neukum &lt;oneukum@suse.com&gt;
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sasha.levin@oracle.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit e912e685f372ab62a2405a1acd923597f524e94a ]

This phone needs to be handled by a specialised firmware tool
and is reported to crash irrevocably if cdc-acm takes it.

Signed-off-by: Oliver Neukum &lt;oneukum@suse.com&gt;
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sasha.levin@oracle.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: cdc-acm: send zero packet for intel 7260 modem</title>
<updated>2016-02-15T20:42:29+00:00</updated>
<author>
<name>Lu Baolu</name>
<email>baolu.lu@linux.intel.com</email>
</author>
<published>2016-01-06T07:10:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=f0a53df3df93c5915fa986b851065af1a54853a5'/>
<id>f0a53df3df93c5915fa986b851065af1a54853a5</id>
<content type='text'>
[ Upstream commit ffdb1e369a73b380fce95b05f8498d92c43842b4 ]

For Intel 7260 modem, it is needed for host side to send zero
packet if the BULK OUT size is equal to USB endpoint max packet
length. Otherwise, modem side may still wait for more data and
cannot give response to host side.

Signed-off-by: Konrad Leszczynski &lt;konrad.leszczynski@intel.com&gt;
Signed-off-by: Lu Baolu &lt;baolu.lu@linux.intel.com&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sasha.levin@oracle.com&gt;
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[ Upstream commit ffdb1e369a73b380fce95b05f8498d92c43842b4 ]

For Intel 7260 modem, it is needed for host side to send zero
packet if the BULK OUT size is equal to USB endpoint max packet
length. Otherwise, modem side may still wait for more data and
cannot give response to host side.

Signed-off-by: Konrad Leszczynski &lt;konrad.leszczynski@intel.com&gt;
Signed-off-by: Lu Baolu &lt;baolu.lu@linux.intel.com&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sasha.levin@oracle.com&gt;
</pre>
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