Commit Graph

192 Commits

Author SHA1 Message Date
Linus Torvalds c884d8ac7f SPDX update for 5.2-rc6
Another round of SPDX updates for 5.2-rc6
 
 Here is what I am guessing is going to be the last "big" SPDX update for
 5.2.  It contains all of the remaining GPLv2 and GPLv2+ updates that
 were "easy" to determine by pattern matching.  The ones after this are
 going to be a bit more difficult and the people on the spdx list will be
 discussing them on a case-by-case basis now.
 
 Another 5000+ files are fixed up, so our overall totals are:
 	Files checked:            64545
 	Files with SPDX:          45529
 
 Compared to the 5.1 kernel which was:
 	Files checked:            63848
 	Files with SPDX:          22576
 This is a huge improvement.
 
 Also, we deleted another 20000 lines of boilerplate license crud, always
 nice to see in a diffstat.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull still more SPDX updates from Greg KH:
 "Another round of SPDX updates for 5.2-rc6

  Here is what I am guessing is going to be the last "big" SPDX update
  for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates
  that were "easy" to determine by pattern matching. The ones after this
  are going to be a bit more difficult and the people on the spdx list
  will be discussing them on a case-by-case basis now.

  Another 5000+ files are fixed up, so our overall totals are:
	Files checked:            64545
	Files with SPDX:          45529

  Compared to the 5.1 kernel which was:
	Files checked:            63848
	Files with SPDX:          22576

  This is a huge improvement.

  Also, we deleted another 20000 lines of boilerplate license crud,
  always nice to see in a diffstat"

* tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits)
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485
  ...
2019-06-21 09:58:42 -07:00
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Reinhard Speyerer 36815b416f qmi_wwan: extend permitted QMAP mux_id value range
Permit mux_id values up to 254 to be used in qmimux_register_device()
for compatibility with ip(8) and the rmnet driver.

Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-14 19:05:58 -07:00
Reinhard Speyerer a8fdde1cb8 qmi_wwan: avoid RCU stalls on device disconnect when in QMAP mode
Switch qmimux_unregister_device() and qmi_wwan_disconnect() to
use unregister_netdevice_queue() and unregister_netdevice_many()
instead of unregister_netdevice(). This avoids RCU stalls which
have been observed on device disconnect in certain setups otherwise.

Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-14 19:05:58 -07:00
Reinhard Speyerer 44f82312fe qmi_wwan: add network device usage statistics for qmimux devices
Add proper network device usage statistics for qmimux devices
instead of reporting all-zero values for them.

Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-14 19:05:58 -07:00
Reinhard Speyerer 61356088ac qmi_wwan: add support for QMAP padding in the RX path
The QMAP code in the qmi_wwan driver is based on the CodeAurora GobiNet
driver which does not process QMAP padding in the RX path correctly.
Add support for QMAP padding to qmimux_rx_fixup() according to the
description of the rmnet driver.

Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-14 19:05:58 -07:00
Daniele Palmas b4e467c82f net: usb: qmi_wwan: add Telit 0x1260 and 0x1261 compositions
Added support for Telit LE910Cx 0x1260 and 0x1261 compositions.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-16 12:15:56 -07:00
David S. Miller ff24e4980a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Three trivial overlapping conflicts.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-02 22:14:21 -04:00
Bjørn Mork 88ef66a283 qmi_wwan: new Wistron, ZTE and D-Link devices
Adding device entries found in vendor modified versions of this
driver.  Function maps for some of the devices follow:

WNC D16Q1, D16Q5, D18Q1 LTE CAT3 module (1435:0918)

MI_00 Qualcomm HS-USB Diagnostics
MI_01 Android Debug interface
MI_02 Qualcomm HS-USB Modem
MI_03 Qualcomm Wireless HS-USB Ethernet Adapter
MI_04 Qualcomm Wireless HS-USB Ethernet Adapter
MI_05 Qualcomm Wireless HS-USB Ethernet Adapter
MI_06 USB Mass Storage Device

 T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 0
 D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
 P:  Vendor=1435 ProdID=0918 Rev= 2.32
 S:  Manufacturer=Android
 S:  Product=Android
 S:  SerialNumber=0123456789ABCDEF
 C:* #Ifs= 7 Cfg#= 1 Atr=80 MxPwr=500mA
 I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
 E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
 E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
 E:  Ad=84(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
 E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
 E:  Ad=86(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
 E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
 E:  Ad=88(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
 E:  Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
 E:  Ad=8a(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
 E:  Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
 E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

WNC D18 LTE CAT3 module (1435:d182)

MI_00 Qualcomm HS-USB Diagnostics
MI_01 Androd Debug interface
MI_02 Qualcomm HS-USB Modem
MI_03 Qualcomm HS-USB NMEA
MI_04 Qualcomm Wireless HS-USB Ethernet Adapter
MI_05 Qualcomm Wireless HS-USB Ethernet Adapter
MI_06 USB Mass Storage Device

ZM8510/ZM8620/ME3960 (19d2:0396)

MI_00 ZTE Mobile Broadband Diagnostics Port
MI_01 ZTE Mobile Broadband AT Port
MI_02 ZTE Mobile Broadband Modem
MI_03 ZTE Mobile Broadband NDIS Port (qmi_wwan)
MI_04 ZTE Mobile Broadband ADB Port

ME3620_X (19d2:1432)

MI_00 ZTE Diagnostics Device
MI_01 ZTE UI AT Interface
MI_02 ZTE Modem Device
MI_03 ZTE Mobile Broadband Network Adapter
MI_04 ZTE Composite ADB Interface

Reported-by: Lars Melin <larsm17@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26 11:30:44 -04:00
Kristian Evensen e4bf63482c qmi_wwan: Add quirk for Quectel dynamic config
Most, if not all, Quectel devices use dynamic interface numbers, and
users are able to change the USB configuration at will. Matching on for
example interface number is therefore not possible.

Instead, the QMI device can be identified by looking at the interface
class, subclass and protocol (all 0xff), as well as the number of
endpoints. The reason we need to look at the number of endpoints, is
that the diagnostic port interface has the same class, subclass and
protocol as QMI. However, the diagnostic port only has two endpoints,
while QMI has three.

Until now, we have identified the QMI device by combining a match on
class, subclass and protocol, with a call to the function
quectel_diag_detect(). In quectel_diag_detect(), we check if the number
of endpoints matches for known Quectel vendor/product ids.

Adding new vendor/product ids to quectel_diag_detect() is not a good
long-term solution. This commit replaces the function with a quirk, and
applies the quirk to affected Quectel devices that I have been able to
test the change with (EP06, EM12 and EC25). If the quirk is set and the
number of endpoints equal two, we return from qmi_wwan_probe() with
-ENODEV.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-08 16:25:56 -07:00
Bjørn Mork 6289d0facd qmi_wwan: add Olicard 600
This is a Qualcomm based device with a QMI function on interface 4.
It is mode switched from 2020:2030 using a standard eject message.

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  6 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=2020 ProdID=2031 Rev= 2.32
S:  Manufacturer=Mobile Connect
S:  Product=Mobile Connect
S:  SerialNumber=0123456789ABCDEF
C:* #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=83(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=89(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
E:  Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
E:  Ad=8a(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=125us

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-28 16:58:06 -07:00
Kristian Evensen 822e44b45e qmi_wwan: Add support for Quectel EG12/EM12
Quectel EG12 (module)/EM12 (M.2 card) is a Cat. 12 LTE modem. The modem
behaves in the same way as the EP06, so the "set DTR"-quirk must be
applied and the diagnostic-interface check performed. Since the
diagnostic-check now applies to more modems, I have renamed the function
from quectel_ep06_diag_detected() to quectel_diag_detected().

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-03 21:39:50 -08:00
Beniamino Galvani 97dc47a130 qmi_wwan: apply SET_DTR quirk to Sierra WP7607
The 1199:68C0 USB ID is reused by Sierra WP7607 which requires the DTR
quirk to be detected. Apply QMI_QUIRK_SET_DTR unconditionally as
already done for other IDs shared between different devices.

Signed-off-by: Beniamino Galvani <bgalvani@redhat.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:40:27 -08:00
Daniele Palmas f87118d576 qmi_wwan: add MTU default to qmap network interface
This patch adds MTU default value to qmap network interface in
order to avoid "RTNETLINK answers: No buffer space available"
error when setting an ipv6 address.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-04 13:35:42 -08:00
Daniele Palmas d667044f49 qmi_wwan: Fix qmap header retrieval in qmimux_rx_fixup
This patch fixes qmap header retrieval when modem is configured for
dl data aggregation.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-21 10:58:45 -08:00
Jörgen Storvist 7c3db4105c qmi_wwan: Add support for Fibocom NL678 series
Added support for Fibocom NL678 series cellular module QMI interface.
Using QMI_QUIRK_SET_DTR required for Qualcomm MDM9x40 series chipsets.

Signed-off-by: Jörgen Storvist <jorgen.storvist@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-21 10:51:21 -08:00
Jörgen Storvist 1986af16e8 qmi_wwan: Added support for Telit LN940 series
Added support for the Telit LN940 series cellular modules QMI interface.
QMI_QUIRK_SET_DTR quirk requied for Qualcomm MDM9x40 chipset.

Signed-off-by: Jörgen Storvist <jorgen.storvist@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-15 11:46:43 -08:00
Jörgen Storvist 110a1cc28b qmi_wwan: Added support for Fibocom NL668 series
Added support for Fibocom NL668 series QMI interface.
Using QMI_QUIRK_SET_DTR required for Qualcomm MDM9x07 chipsets.

Signed-off-by: Jörgen Storvist <jorgen.storvist@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-15 11:31:59 -08:00
Giacinto Cifelli 4f7617705b qmi_wwan: Added support for Gemalto's Cinterion ALASxx WWAN interface
Added support for Gemalto's Cinterion ALASxx WWAN interfaces
by adding QMI_FIXED_INTF with Cinterion's VID and PID.

Signed-off-by: Giacinto Cifelli <gciofono@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-10 22:57:23 -07:00
Bjørn Mork 922005c7f5 qmi_wwan: set DTR for modems in forced USB2 mode
Recent firmware revisions have added the ability to force
these modems to USB2 mode, hiding their SuperSpeed
capabilities from the host.  The driver has been using the
SuperSpeed capability, as shown by the bcdUSB field of the
device descriptor, to detect the need to enable the DTR
quirk.  This method fails when the modems are forced to
USB2 mode by the modem firmware.

Fix by unconditionally enabling the DTR quirk for the
affected device IDs.

Reported-by: Fred Veldini <fred.veldini@gmail.com>
Reported-by: Deshu Wen <dwen@sierrawireless.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Reported-by: Fred Veldini <fred.veldini@gmail.com>
Reported-by: Deshu Wen <dwen@sierrawireless.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-17 19:23:27 -07:00
Kristian Evensen 7c5cca3588 qmi_wwan: Support dynamic config on Quectel EP06
Quectel EP06 (and EM06/EG06) supports dynamic configuration of USB
interfaces, without the device changing VID/PID or configuration number.
When the configuration is updated and interfaces are added/removed, the
interface numbers change. This means that the current code for matching
EP06 does not work.

This patch removes the current EP06 interface number match, and replaces
it with a match on class, subclass and protocol. Unfortunately, matching
on those three alone is not enough, as the diag interface exports the
same values as QMI. The other serial interfaces + adb export different
values and do not match.

The diag interface only has two endpoints, while the QMI interface has
three. I have therefore added a check for number of interfaces, and we
ignore the interface if the number of endpoints equals two.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-10 10:48:54 -07:00
Aleksander Morgado f25e1392fd qmi_wwan: fix interface number for DW5821e production firmware
The original mapping for the DW5821e was done using a development
version of the firmware. Confirmed with the vendor that the final
USB layout ends up exposing the QMI control/data ports in USB
config #1, interface #0, not in interface #1 (which is now a HID
interface).

T:  Bus=01 Lev=03 Prnt=04 Port=00 Cnt=01 Dev#= 16 Spd=480 MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  2
P:  Vendor=413c ProdID=81d7 Rev=03.18
S:  Manufacturer=DELL
S:  Product=DW5821e Snapdragon X20 LTE
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I:  If#= 1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
I:  If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option

Fixes: e7e197edd0 ("qmi_wwan: add support for the Dell Wireless 5821e module")
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-24 16:37:13 -07:00
Matevz Vucnik 38cd58ed9c qmi_wwan: add support for Quectel EG91
This adds the USB id of LTE modem Quectel EG91. It requires the
same quirk as other Quectel modems to make it work.

Signed-off-by: Matevz Vucnik <vucnikm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-05 20:22:12 +09:00
Aleksander Morgado e7e197edd0 qmi_wwan: add support for the Dell Wireless 5821e module
This module exposes two USB configurations: a QMI+AT capable setup on
USB config #1 and a MBIM capable setup on USB config #2.

By default the kernel will choose the MBIM capable configuration as
long as the cdc_mbim driver is available. This patch adds support for
the QMI port in the secondary configuration.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-24 11:44:28 +09:00
David S. Miller 9c54aeb03a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Filling in the padding slot in the bpf structure as a bug fix in 'ne'
overlapped with actually using that padding area for something in
'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-03 09:31:58 -04:00
Josh Hill 2415f3bd05 net: qmi_wwan: Add Netgear Aircard 779S
Add support for Netgear Aircard 779S

Signed-off-by: Josh Hill <josh@joshuajhill.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-29 10:56:17 -04:00
Bjørn Mork 102cd90963 qmi_wwan: apply SET_DTR quirk to the SIMCOM shared device ID
SIMCOM are reusing a single device ID for many (all of their?)
different modems, based on different chipsets and firmwares. Newer
Qualcomm chipset generations require setting DTR to wake the QMI
function.  The SIM7600E modem is using such a chipset, making it
fail to work with this driver despite the device ID match.

Fix by unconditionally enabling the SET_DTR quirk for all SIMCOM
modems using this specific device ID.  This is similar to what
we already have done for another case of device IDs recycled over
multiple chipset generations: 14cf4a771b ("drivers: net: usb:
qmi_wwan: add QMI_QUIRK_SET_DTR for Telit PID 0x1201")

Initial testing on an older SIM7100 modem shows no immediate side
effects.

Reported-by: Sebastian Sjoholm <sebastian.sjoholm@gmail.com>
Cc: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-28 23:13:02 -04:00
Bjørn Mork 5697db4a69 qmi_wwan: do not steal interfaces from class drivers
The USB_DEVICE_INTERFACE_NUMBER matching macro assumes that
the { vendorid, productid, interfacenumber } set uniquely
identifies one specific function.  This has proven to fail
for some configurable devices. One example is the Quectel
EM06/EP06 where the same interface number can be either
QMI or MBIM, without the device ID changing either.

Fix by requiring the vendor-specific class for interface number
based matching.  Functions of other classes can and should use
class based matching instead.

Fixes: 03304bcb5e ("net: qmi_wwan: use fixed interface number matching")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-03 11:25:03 -04:00
SZ Lin (林上智) 9306b38e42 NET: usb: qmi_wwan: add support for ublox R410M PID 0x90b2
This patch adds support for PID 0x90b2 of ublox R410M.

qmicli -d /dev/cdc-wdm0 --dms-get-manufacturer
[/dev/cdc-wdm0] Device manufacturer retrieved:
        Manufacturer: 'u-blox'

qmicli -d /dev/cdc-wdm0 --dms-get-model
[/dev/cdc-wdm0] Device model retrieved:
        Model: 'SARA-R410M-02B'

Signed-off-by: SZ Lin (林上智) <sz.lin@moxa.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27 13:23:05 -04:00
Pawel Dembicki 4ec7eb3ff6 net: qmi_wwan: add Wistron Neweb D19Q1
This modem is embedded on dlink dwr-960 router.
The oem configuration states:

T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1435 ProdID=d191 Rev=ff.ff
S: Manufacturer=Android
S: Product=Android
S: SerialNumber=0123456789ABCDEF
C:* #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E: Ad=84(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E: Ad=86(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E: Ad=88(I) Atr=03(Int.) MxPS= 8 Ivl=32ms
E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
E: Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=125us

Tested on openwrt distribution

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-19 13:38:01 -04:00
Giuseppe Lippolis d4c4bc1135 net-usb: add qmi_wwan if on lte modem wistron neweb d18q1
This modem is embedded on dlink dwr-921 router.
    The oem configuration states:

    T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=1435 ProdID=0918 Rev= 2.32
    S:  Manufacturer=Android
    S:  Product=Android
    S:  SerialNumber=0123456789ABCDEF
    C:* #Ifs= 7 Cfg#= 1 Atr=80 MxPwr=500mA
    I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
    E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
    E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
    E:  Ad=84(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
    E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
    E:  Ad=86(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
    E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
    E:  Ad=88(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
    E:  Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
    E:  Ad=8a(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
    E:  Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 6 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
    E:  Ad=8b(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=125us

Tested on openwrt distribution

Signed-off-by: Giuseppe Lippolis <giu.lippolis@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-27 10:51:10 -04:00
Torsten Hilbrich f3d801baf1 net/usb/qmi_wwan.c: Add USB id for lt4120 modem
This is needed to support the modem found in HP EliteBook 820 G3.

Signed-off-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-26 12:54:59 -04:00
Pawel Dembicki 743989254e net: qmi_wwan: add BroadMobi BM806U 2020:2033
BroadMobi BM806U is an Qualcomm MDM9225 based 3G/4G modem.
Tested hardware BM806U is mounted on D-Link DWR-921-C3 router.
The USB id is added to qmi_wwan.c to allow QMI communication with
the BM806U.

Tested on 4.14 kernel and OpenWRT.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-26 12:35:42 -04:00
Kristian Evensen c0b91a56a2 qmi_wwan: Add support for Quectel EP06
The Quectel EP06 is a Cat. 6 LTE modem. It uses the same interface as
the EC20/EC25 for QMI, and requires the same "set DTR"-quirk to work.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-31 10:26:29 -05:00
David S. Miller a0ce093180 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
SZ Lin (林上智) bd30ffc414 NET: usb: qmi_wwan: add support for YUGA CLM920-NC5 PID 0x9625
This patch adds support for PID 0x9625 of YUGA CLM920-NC5.

YUGA CLM920-NC5 needs to enable QMI_WWAN_QUIRK_DTR before QMI operation.

qmicli -d /dev/cdc-wdm0 -p --dms-get-revision
[/dev/cdc-wdm0] Device revision retrieved:
        Revision: 'CLM920_NC5-V1  1  [Oct 23 2016 19:00:00]'

Signed-off-by: SZ Lin (林上智) <sz.lin@moxa.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 14:49:34 -05:00
David S. Miller c30abd5e40 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Three sets of overlapping changes, two in the packet scheduler
and one in the meson-gxl PHY driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-16 22:11:55 -05:00
Bjørn Mork 245d21190a qmi_wwan: set FLAG_SEND_ZLP to avoid network initiated disconnect
It has been reported that the dummy byte we add to avoid
ZLPs can be forwarded by the modem to the PGW/GGSN, and that
some operators will drop the connection if this happens.

In theory, QMI devices are based on CDC ECM and should as such
both support ZLPs and silently ignore the dummy byte.  The latter
assumption failed.  Let's test out the first.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-15 13:50:13 -05:00
Daniele Palmas c647c0d62c net: usb: qmi_wwan: add Telit ME910 PID 0x1101 support
This patch adds support for Telit ME910 PID 0x1101.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-15 13:46:10 -05:00
Sebastian Sjoholm aceef61ee5 net: qmi_wwan: add Sierra EM7565 1199:9091
Sierra Wireless EM7565 is an Qualcomm MDM9x50 based M.2 modem.
The USB id is added to qmi_wwan.c to allow QMI communication
with the EM7565.

Signed-off-by: Sebastian Sjoholm <ssjoholm@mac.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-13 13:55:09 -05:00
Bjørn Mork a4abd7a80a usbnet: fix alignment for frames with no ethernet header
The qmi_wwan minidriver support a 'raw-ip' mode where frames are
received without any ethernet header. This causes alignment issues
because the skbs allocated by usbnet are "IP aligned".

Fix by allowing minidrivers to disable the additional alignment
offset. This is implemented using a per-device flag, since the same
minidriver also supports 'ethernet' mode.

Fixes: 32f7adf633 ("net: qmi_wwan: support "raw IP" mode")
Reported-and-tested-by: Jay Foster <jay@systech.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-07 14:32:30 -05:00
Sebastian Sjoholm f9409e7f08 net: qmi_wwan: add Quectel BG96 2c7c:0296
Quectel BG96 is an Qualcomm MDM9206 based IoT modem, supporting both
CAT-M and NB-IoT. Tested hardware is BG96 mounted on Quectel development
board (EVB). The USB id is added to qmi_wwan.c to allow QMI
communication with the BG96.

Signed-off-by: Sebastian Sjoholm <ssjoholm@mac.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-21 20:17:47 +09:00
David S. Miller 4dc6758d78 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Simple cases of overlapping changes in the packet scheduler.

Must easier to resolve this time.

Which probably means that I screwed it up somehow.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-10 10:00:18 +09:00
Kristian Evensen 0de0add10e qmi_wwan: Add missing skb_reset_mac_header-call
When we receive a packet on a QMI device in raw IP mode, we should call
skb_reset_mac_header() to ensure that skb->mac_header contains a valid
offset in the packet. While it shouldn't really matter, the packets have
no MAC header and the interface is configured as-such, it seems certain
parts of the network stack expects a "good" value in skb->mac_header.

Without the skb_reset_mac_header() call added in this patch, for example
shaping traffic (using tc) triggers the following oops on the first
received packet:

[  303.642957] skbuff: skb_under_panic: text:8f137918 len:177 put:67 head:8e4b0f00 data:8e4b0eff tail:0x8e4b0fb0 end:0x8e4b1520 dev:wwan0
[  303.655045] Kernel bug detected[#1]:
[  303.658622] CPU: 1 PID: 1002 Comm: logd Not tainted 4.9.58 #0
[  303.664339] task: 8fdf05e0 task.stack: 8f15c000
[  303.668844] $ 0   : 00000000 00000001 0000007a 00000000
[  303.674062] $ 4   : 8149a2fc 8149a2fc 8149ce20 00000000
[  303.679284] $ 8   : 00000030 3878303a 31623465 20303235
[  303.684510] $12   : ded731e3 2626a277 00000000 03bd0000
[  303.689747] $16   : 8ef62b40 00000043 8f137918 804db5fc
[  303.694978] $20   : 00000001 00000004 8fc13800 00000003
[  303.700215] $24   : 00000001 8024ab10
[  303.705442] $28   : 8f15c000 8fc19cf0 00000043 802cc920
[  303.710664] Hi    : 00000000
[  303.713533] Lo    : 74e58000
[  303.716436] epc   : 802cc920 skb_panic+0x58/0x5c
[  303.721046] ra    : 802cc920 skb_panic+0x58/0x5c
[  303.725639] Status: 11007c03 KERNEL EXL IE
[  303.729823] Cause : 50800024 (ExcCode 09)
[  303.733817] PrId  : 0001992f (MIPS 1004Kc)
[  303.737892] Modules linked in: rt2800pci rt2800mmio rt2800lib qcserial ppp_async option usb_wwan rt2x00pci rt2x00mmio rt2x00lib rndis_host qmi_wwan ppp_generic nf_nat_pptp nf_conntrack_pptp nf_conntrack_ipv6 mt76x2i
Process logd (pid: 1002, threadinfo=8f15c000, task=8fdf05e0, tls=77b3eee4)
[  303.962509] Stack : 00000000 80408990 8f137918 000000b1 00000043 8e4b0f00 8e4b0eff 8e4b0fb0
[  303.970871]         8e4b1520 8fec1800 00000043 802cd2a4 6e000045 00000043 00000000 8ef62000
[  303.979219]         8eef5d00 8ef62b40 8fea7300 8f137918 00000000 00000000 0002bb01 793e5664
[  303.987568]         8ef08884 00000001 8fea7300 00000002 8fc19e80 8eef5d00 00000006 00000003
[  303.995934]         00000000 8030ba90 00000003 77ab3fd0 8149dc80 8004d1bc 8f15c000 8f383700
[  304.004324]         ...
[  304.006767] Call Trace:
[  304.009241] [<802cc920>] skb_panic+0x58/0x5c
[  304.013504] [<802cd2a4>] skb_push+0x78/0x90
[  304.017783] [<8f137918>] 0x8f137918
[  304.021269] Code: 00602825  0c02a3b4  24842888 <000c000d> 8c870060  8c8200a0  0007382b  00070336  8c88005c
[  304.031034]
[  304.032805] ---[ end trace b778c482b3f0bda9 ]---
[  304.041384] Kernel panic - not syncing: Fatal exception in interrupt
[  304.051975] Rebooting in 3 seconds..

While the oops is for a 4.9-kernel, I was able to trigger the same oops with
net-next as of yesterday.

Fixes: 32f7adf633 ("net: qmi_wwan: support "raw IP" mode")
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 16:10:30 +09:00
Bjørn Mork 7fd0783372 net: qmi_wwan: fix divide by 0 on bad descriptors
A CDC Ethernet functional descriptor with wMaxSegmentSize = 0 will
cause a divide error in usbnet_probe:

divide error: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.0-rc8-44453-g1fdc1a82c34f #56
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Workqueue: usb_hub_wq hub_event
task: ffff88006bef5c00 task.stack: ffff88006bf60000
RIP: 0010:usbnet_update_max_qlen+0x24d/0x390 drivers/net/usb/usbnet.c:355
RSP: 0018:ffff88006bf67508 EFLAGS: 00010246
RAX: 00000000000163c8 RBX: ffff8800621fce40 RCX: ffff8800621fcf34
RDX: 0000000000000000 RSI: ffffffff837ecb7a RDI: ffff8800621fcf34
RBP: ffff88006bf67520 R08: ffff88006bef5c00 R09: ffffed000c43f881
R10: ffffed000c43f880 R11: ffff8800621fc406 R12: 0000000000000003
R13: ffffffff85c71de0 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88006ca00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe9c0d6dac CR3: 00000000614f4000 CR4: 00000000000006f0
Call Trace:
 usbnet_probe+0x18b5/0x2790 drivers/net/usb/usbnet.c:1783
 qmi_wwan_probe+0x133/0x220 drivers/net/usb/qmi_wwan.c:1338
 usb_probe_interface+0x324/0x940 drivers/usb/core/driver.c:361
 really_probe drivers/base/dd.c:413
 driver_probe_device+0x522/0x740 drivers/base/dd.c:557

Fix by simply ignoring the bogus descriptor, as it is optional
for QMI devices anyway.

Fixes: 423ce8caab ("net: usb: qmi_wwan: New driver for Huawei QMI based WWAN devices")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-08 13:42:43 +09:00
David Ahern 42ab19ee90 net: Add extack to upper device linking
Add extack arg to netdev_upper_dev_link and netdev_master_upper_dev_link

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-04 21:39:33 -07:00
Bjørn Mork bbae08e592 qmi_wwan: fix NULL deref on disconnect
qmi_wwan_disconnect is called twice when disconnecting devices with
separate control and data interfaces.  The first invocation will set
the interface data to NULL for both interfaces to flag that the
disconnect has been handled.  But the matching NULL check was left
out when qmi_wwan_disconnect was added, resulting in this oops:

  usb 2-1.4: USB disconnect, device number 4
  qmi_wwan 2-1.4:1.6 wwp0s29u1u4i6: unregister 'qmi_wwan' usb-0000:00:1d.0-1.4, WWAN/QMI device
  BUG: unable to handle kernel NULL pointer dereference at 00000000000000e0
  IP: qmi_wwan_disconnect+0x25/0xc0 [qmi_wwan]
  PGD 0
  P4D 0
  Oops: 0000 [#1] SMP
  Modules linked in: <stripped irrelevant module list>
  CPU: 2 PID: 33 Comm: kworker/2:1 Tainted: G            E   4.12.3-nr44-normandy-r1500619820+ #1
  Hardware name: LENOVO 4291LR7/4291LR7, BIOS CBET4000 4.6-810-g50522254fb 07/21/2017
  Workqueue: usb_hub_wq hub_event [usbcore]
  task: ffff8c882b716040 task.stack: ffffb8e800d84000
  RIP: 0010:qmi_wwan_disconnect+0x25/0xc0 [qmi_wwan]
  RSP: 0018:ffffb8e800d87b38 EFLAGS: 00010246
  RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
  RDX: 0000000000000001 RSI: ffff8c8824f3f1d0 RDI: ffff8c8824ef6400
  RBP: ffff8c8824ef6400 R08: 0000000000000000 R09: 0000000000000000
  R10: ffffb8e800d87780 R11: 0000000000000011 R12: ffffffffc07ea0e8
  R13: ffff8c8824e2e000 R14: ffff8c8824e2e098 R15: 0000000000000000
  FS:  0000000000000000(0000) GS:ffff8c8835300000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00000000000000e0 CR3: 0000000229ca5000 CR4: 00000000000406e0
  Call Trace:
   ? usb_unbind_interface+0x71/0x270 [usbcore]
   ? device_release_driver_internal+0x154/0x210
   ? qmi_wwan_unbind+0x6d/0xc0 [qmi_wwan]
   ? usbnet_disconnect+0x6c/0xf0 [usbnet]
   ? qmi_wwan_disconnect+0x87/0xc0 [qmi_wwan]
   ? usb_unbind_interface+0x71/0x270 [usbcore]
   ? device_release_driver_internal+0x154/0x210

Reported-and-tested-by: Nathaniel Roach <nroach44@gmail.com>
Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 21:14:16 -07:00
Hector Martin bed9ff1659 usb: qmi_wwan: add D-Link DWM-222 device ID
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:46:47 -07:00
Johannes Berg d58ff35122 networking: make skb_push & __skb_push return void pointers
It seems like a historic accident that these return unsigned char *,
and in many places that means casts are required, more often than not.

Make these functions return void * and remove all the casts across
the tree, adding a (u8 *) cast only where the unsigned char pointer
was used directly, all done with the following spatch:

    @@
    expression SKB, LEN;
    typedef u8;
    identifier fn = { skb_push, __skb_push, skb_push_rcsum };
    @@
    - *(fn(SKB, LEN))
    + *(u8 *)fn(SKB, LEN)

    @@
    expression E, SKB, LEN;
    identifier fn = { skb_push, __skb_push, skb_push_rcsum };
    type T;
    @@
    - E = ((T *)(fn(SKB, LEN)))
    + E = fn(SKB, LEN)

    @@
    expression SKB, LEN;
    identifier fn = { skb_push, __skb_push, skb_push_rcsum };
    @@
    - fn(SKB, LEN)[0]
    + *(u8 *)fn(SKB, LEN)

Note that the last part there converts from push(...)[0] to the
more idiomatic *(u8 *)push(...).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 11:48:40 -04:00
Johannes Berg 59ae1d127a networking: introduce and use skb_put_data()
A common pattern with skb_put() is to just want to memcpy()
some data into the new space, introduce skb_put_data() for
this.

An spatch similar to the one for skb_put_zero() converts many
of the places using it:

    @@
    identifier p, p2;
    expression len, skb, data;
    type t, t2;
    @@
    (
    -p = skb_put(skb, len);
    +p = skb_put_data(skb, data, len);
    |
    -p = (t)skb_put(skb, len);
    +p = skb_put_data(skb, data, len);
    )
    (
    p2 = (t2)p;
    -memcpy(p2, data, len);
    |
    -memcpy(p, data, len);
    )

    @@
    type t, t2;
    identifier p, p2;
    expression skb, data;
    @@
    t *p;
    ...
    (
    -p = skb_put(skb, sizeof(t));
    +p = skb_put_data(skb, data, sizeof(t));
    |
    -p = (t *)skb_put(skb, sizeof(t));
    +p = skb_put_data(skb, data, sizeof(t));
    )
    (
    p2 = (t2)p;
    -memcpy(p2, data, sizeof(*p));
    |
    -memcpy(p, data, sizeof(*p));
    )

    @@
    expression skb, len, data;
    @@
    -memcpy(skb_put(skb, len), data, len);
    +skb_put_data(skb, data, len);

(again, manually post-processed to retain some comments)

Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 11:48:37 -04:00