Enable TIOCGICOUNT to allow reading out the (unused) interrupt counters
and error statistics.
Note that modem-status events are currently left unimplemented as they
appear to be buffered on at least CP2102 and therefore cannot be used to
implement TIOCMIWAIT.
Link: https://lore.kernel.org/r/20200713105517.27796-4-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Add support for line-status events that specifically can be used to
detect and report parity errors.
Enable the device's event-insertion mode whenever input-parity checking
is requested. This will insert line and modem status events into the
data stream.
Note that modem-status changes appear to be buffered until a character
is received (at least on CP2102) and support is therefore left
unimplemented.
On at least one type of these chips (CP2102), line breaks are not
reported as expected either (regardless of whether SERIAL_BREAK_CHAR is
set) so do not enable event-mode when !IGNBRK is requested for now.
Link: https://lore.kernel.org/r/20200713105517.27796-3-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Try to disable the serial interface in the unlikely event that generic
open() fails.
Link: https://lore.kernel.org/r/20200713105517.27796-2-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
CP210x hardware disables auto-RTS but leaves auto-CTS when in hardware
flow control mode and UART on cp210x hardware is disabled. When
re-opening the port, if auto-CTS is enabled on the cp210x, then auto-RTS
must be re-enabled in the driver.
Signed-off-by: Brant Merryman <brant.merryman@silabs.com>
Co-developed-by: Phu Luu <phu.luu@silabs.com>
Signed-off-by: Phu Luu <phu.luu@silabs.com>
Link: https://lore.kernel.org/r/ECCF8E73-91F3-4080-BE17-1714BC8818FB@silabs.com
[ johan: fix up tags and problem description ]
Fixes: 39a66b8d22 ("[PATCH] USB: CP2101 Add support for flow control")
Cc: stable <stable@vger.kernel.org> # 2.6.12
Signed-off-by: Johan Hovold <johan@kernel.org>
Assign the .throttle and .unthrottle functions to be generic function
in the driver structure to prevent data loss that can otherwise occur
if the host does not enable USB throttling.
Signed-off-by: Brant Merryman <brant.merryman@silabs.com>
Co-developed-by: Phu Luu <phu.luu@silabs.com>
Signed-off-by: Phu Luu <phu.luu@silabs.com>
Link: https://lore.kernel.org/r/57401AF3-9961-461F-95E1-F8AFC2105F5E@silabs.com
[ johan: fix up tags ]
Fixes: 39a66b8d22 ("[PATCH] USB: CP2101 Add support for flow control")
Cc: stable <stable@vger.kernel.org> # 2.6.12
Signed-off-by: Johan Hovold <johan@kernel.org>
Add support for the Mark-10 digital force gauge device to the cp201x
driver.
Based on a report and a larger patch from Joel Jennings
Reported-by: Joel Jennings <joel.jennings@makeitlabs.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191118092119.GA153852@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Lorenz Messtechnik has a device that is controlled by the cp210x driver,
so add the device id to the driver. The device id was provided by
Silicon-Labs for the devices from this vendor.
Reported-by: Uli <t9cpu@web.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Here are a couple of new device ids for 5.1-rc1.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-5.1-rc1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB-serial fixes for 5.1-rc1
Here are a couple of new device ids for 5.1-rc1.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
* tag 'usb-serial-5.1-rc1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: ftdi_sio: add ID for Hjelmslund Electronics USB485
USB: serial: cp210x: add ID for Ingenico 3070
Current GPIO code in cp210x fails to take USB autosuspend into account,
making it practically impossible to use GPIOs with autosuspend enabled
without user configuration. Fix this like for ftdi_sio in a previous patch.
Tested on a CP2102N.
Signed-off-by: Karoly Pados <pados@pados.hu>
Fixes: cf5276ce78 ("USB: serial: cp210x: Adding GPIO support for CP2105")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Here is how this device appears in kernel log:
usb 3-1: new full-speed USB device number 18 using xhci_hcd
usb 3-1: New USB device found, idVendor=0b00, idProduct=3070
usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-1: Product: Ingenico 3070
usb 3-1: Manufacturer: Silicon Labs
usb 3-1: SerialNumber: 0001
Apparently this is a POS terminal with embedded USB-to-Serial converter.
Cc: stable@vger.kernel.org
Signed-off-by: Ivan Mironov <mironov.ivan@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Add minimum baud rate to the cp210x driver.
According to the datasheet for CP2105, the SCI supports 2400 as the
lowest baud rate. As this is not heeded in the current code, an error
message 'failed set req 0x1e size 4 status: -32' when trying to set a
lower baud rate such as 300.
The other cp210x models to date supports a minimum baud rate of 300.
Signed-off-by: Johanna Abrahamsson <johanna.abrahamsson@afconsult.com>
[ johan: simplify min_speed init, move clamp after comment, and drop
unused serial-data pointer from cp210x_get_actual_rate() ]
Signed-off-by: Johan Hovold <johan@kernel.org>
The CP2104 chips feature 4 controllable GPIO pins, which are similar to
the ones on CP2102N chip (output-only when push-pull, output or
simulated input mode when open-drain).
Add support for the GPIO pins for cp210x driver. The pin get/set routine
is shared with CP2102N, but the pinconf initialization code is not
shared because the acquisition of GPIO configuration in OTP ROM is
similar to CP2105, not CP2102N.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Johan Hovold <johan@kernel.org>
The QFN28 package version of the CP2102N has three additional gpio pins.
Add support for these.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Here are the USB-serial updates for 4.19-rc1, including:
- gpio support for CP2102N devices
- improved line-speed handling for cp210x
- conversion to spin_lock_irqsave() in completion handlers
- dropped kl5kusb105 support from the kl5kusb105 driver (sic!)
Included are also various lower-priority fixes and clean ups.
All but the final commit have been in linux-next, and with no reported
issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB-serial updates for v4.19-rc1
Here are the USB-serial updates for 4.19-rc1, including:
- gpio support for CP2102N devices
- improved line-speed handling for cp210x
- conversion to spin_lock_irqsave() in completion handlers
- dropped kl5kusb105 support from the kl5kusb105 driver (sic!)
Included are also various lower-priority fixes and clean ups.
All but the final commit have been in linux-next, and with no reported
issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
This patch adds GPIO support for CP2102N devices.
It introduces new generic code to support emulating separate
input and outputs directions even though these devices
only know output modes (open-drain and pushpull). Existing
GPIO support for CP2105 has been migrated over to the new
code structure.
Only limitation is that for the QFN28 variant, only 4 out of
7 GPIOs are supported. This is because the config array
locations of the last 3 pins are not documented, and reverse
engineering revealed offsets that conflicted with other
documented functions. Hence we'll play it safe instead
until somebody clears this up further.
Signed-off-by: Karoly Pados <pados@pados.hu>
[ johan: fix style issues and a couple of minor bugs; use Karoly's
updated commit message ]
Acked-by: Martyn Welch <martyn.welch@collabora.co.uk>
Signed-off-by: Johan Hovold <johan@kernel.org>
CP2104 and the ECI interface of CP2105 support further baud rates than
the ones specified in AN205 table 1, and we can use the same equations
as for CP2102N to determine and report back the actual baud rates used.
Note that this could eventually be generalised also to CP2108, which
uses a different base clock. There appears to be an error in the CP2108
equations which needs to be confirmed on actual hardware first however
(specifically, the subtraction of one from the divisor appears to be
incorrect as it introduces larger errors).
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
The CP2102N equations for determining the actual baud rate can be used
also for other device types, so let's factor it out.
Note that this removes the now unused cp210x_is_cp2102n() helper.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
CP2102N devices support a lot more baudrates than earlier chips by
SiLabs. These devices are not constrained anymore by the table in AN205,
and are able to generate almost any baudrate in the supported range
with only minimal errors. This has also been verified with a scope on
a physical device. This patch adds support for all baudrates supported
by the CP2102N.
Signed-off-by: Karoly Pados <pados@pados.hu>
[johan: rework on top of an205 and max-speed patches ]
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Newer cp210x devices support higher line speeds than the older ones
which supported a discrete set of speeds up to 921.6 kbaud.
To support these higher speeds, we have for some time mapped speeds
lower than 1 Mbaud to the speeds supported by older devices, while
allowing the device to pick the closest possible rate for higher speeds
(without trying to guess and report back what rate was actually chosen).
As this implementation can lead to undefined behaviour for older devices
which do not support the higher rates, let's use the later-added
device-type detection to determine the maximum supported speed.
This will also be useful when adding support for cp2102n which can
handle rates up to 3 Mbaud.
As per the data sheets the following maximum speeds are used
cp2101 921.6 kbaud
cp2102/3 1 Mbaud
cp2104/8 2 Mbaud
cp2105
- ECI port 2 Mbaud
- SCI port 921.6 kbaud
while keeping the maximum 2 Mbaud for unknown device types in order to
avoid any regressions.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Older cp210x devices only support a fixed set of line speeds to which a
requested speed is mapped. Reimplement this mapping using a table
instead of a long if-else construct.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
There are two versions of the Qivicon Zigbee stick in circulation. This
adds the second USB ID to the cp210x driver.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Silicon Labs defines alternative VID/PID pairs for some chips that when
used will automatically install drivers for Windows users without manual
intervention. Unfortunately, these IDs are not recognized by the Linux
module, so using these IDs improves user experience on one platform but
degrades it on Linux. This patch addresses this problem.
Signed-off-by: Karoly Pados <pados@pados.hu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Added the USB VID and PID for the USB serial console on some National
Instruments devices.
Signed-off-by: Kyle Roeschley <kyle.roeschley@ni.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
This adds the ELV ALC 8xxx Battery Charging device
to the list of USB IDs of drivers/usb/serial/cp210x.c
Signed-off-by: Christian Holl <cyborgx1@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Add IDs for the OneTouch Verio IQ that comes with an embedded
USB-to-serial converter.
Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Several GPL-2.0 drivers used "GPL" rather than "GPL v2" in their
MODULE_LICENSE macros; fix the macros to match the licenses.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that the SPDX tag is in all USB files, that identifies the license
in a specific and legally-defined manner. So the extra GPL text wording
can be removed as it is no longer needed at all.
This is done on a quest to remove the 700+ different ways that files in
the kernel describe the GPL license text. And there's unneeded stuff
like the address (sometimes incorrect) for the FSF which is never
needed.
No copyright headers or other non-license-description text was removed.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.
Update the drivers/usb/ and include/linux/usb* files with the correct
SPDX license identifier based on the license text in the file itself.
The SPDX identifier is a legally binding shorthand, which can be used
instead of the full boiler plate text.
This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add the USB device id for the ELV TFD500 data logger.
Signed-off-by: Andreas Engel <anen-nospam@gmx.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
When adding GPIO support for the cp2105, the mentioned commit by Martyn
Welch introduced a query for the part number of the chip. Unfortunately
the driver aborts probing when this query fails, so currently the driver
can not be used with chips not supporting this query.
I have a data cable for Siemens mobile phones (ID 10ab:10c5) where this
is the case.
With this patch the driver can be bound even if the part number can not
be queried.
Fixes: cf5276ce78 ("USB: serial: cp210x: Adding GPIO support for CP2105")
Signed-off-by: Sebastian Frei <dr.nop@gmx.net>
[ johan: amend commit message; shorten error message and demote to
warning; drop unnecessary move of usb_set_serial_data() ]
Cc: stable <stable@vger.kernel.org> # 4.9
Signed-off-by: Johan Hovold <johan@kernel.org>
The German Telekom offers a ZigBee USB Stick under the brand name Qivicon
for their SmartHome Home Base in its 1. Generation. The productId is not
known by the according kernel module, this patch adds support for it.
Signed-off-by: Stefan Triller <github@stefantriller.de>
Reviewed-by: Frans Klaver <fransklaver@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Added the USB serial device ID for the CEL ZigBee EM3588
radio stick.
Signed-off-by: Jeremie Rapin <rapinj@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here is the big USB and PHY driver updates for 4.11-rc1.
Nothing major, just the normal amount of churn in the usb gadget and dwc
and xhci controllers, new device ids, new phy drivers, a new usb-serial
driver, and a few other minor changes in different USB drivers.
All have been in linux-next for a long time with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY updates from Greg KH:
"Here is the big USB and PHY driver updates for 4.11-rc1.
Nothing major, just the normal amount of churn in the usb gadget and
dwc and xhci controllers, new device ids, new phy drivers, a new
usb-serial driver, and a few other minor changes in different USB
drivers.
All have been in linux-next for a long time with no reported issues"
* tag 'usb-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (265 commits)
usb: cdc-wdm: remove logically dead code
USB: serial: keyspan: drop header file
USB: serial: io_edgeport: drop io-tables header file
usb: musb: add code comment for clarification
usb: misc: add USB251xB/xBi Hi-Speed Hub Controller Driver
usb: misc: usbtest: remove redundant check on retval < 0
USB: serial: upd78f0730: sort device ids
USB: serial: upd78f0730: add ID for EVAL-ADXL362Z
ohci-hub: fix typo in dbg_port macro
usb: musb: dsps: Manage CPPI 4.1 DMA interrupt in DSPS
usb: musb: tusb6010: Clean up tusb_omap_dma structure
usb: musb: cppi_dma: Clean up cppi41_dma_controller structure
usb: musb: cppi_dma: Clean up cppi structure
usb: musb: cppi41: Detect aborted transfers in cppi41_dma_callback()
usb: musb: dma: Add a DMA completion platform callback
drivers: usb: usbip: Add missing break statement to switch
usb: mtu3: remove redundant dev_err call in get_ssusb_rscs()
USB: serial: mos7840: fix another NULL-deref at open
USB: serial: console: clean up sanity checks
USB: serial: console: fix uninitialised spinlock
...
Add new USB IDs for cp2104/5 devices on Bx50v3 boards due to the design
change.
Signed-off-by: Ken Lin <yungching0725@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Currently we already have two pin configuration related callbacks
available for GPIO chips .set_single_ended() and .set_debounce(). In
future we expect to have even more, which does not scale well if we need
to add yet another callback to the GPIO chip structure for each possible
configuration parameter.
Better solution is to reuse what we already have available in the
generic pinconf.
To support this, we introduce a new .set_config() callback for GPIO
chips. The callback takes a single packed pin configuration value as
parameter. This can then be extended easily beyond what is currently
supported by just adding new types to the generic pinconf enum.
If the GPIO driver is backed up by a pinctrl driver the GPIO driver can
just assign gpiochip_generic_config() (introduced in this patch) to
.set_config and that will take care configuration requests are directed
to the pinctrl driver.
We then convert the existing drivers over .set_config() and finally
remove the .set_single_ended() and .set_debounce() callbacks.
Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
These updates include a new driver for Fintek F8153x devices, support
for the GPIO functionality on CP2105 devices, and improved support for
CH34X devices.
Included are also some clean ups and fixes for various minor issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB-serial updates for v4.10-rc1
These updates include a new driver for Fintek F8153x devices, support
for the GPIO functionality on CP2105 devices, and improved support for
CH34X devices.
Included are also some clean ups and fixes for various minor issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
On sparc32, tcflag_t is unsigned long, unlike all other architectures:
drivers/usb/serial/cp210x.c: In function 'cp210x_get_termios':
drivers/usb/serial/cp210x.c:717:3: warning: passing argument 2 of 'cp210x_get_termios_port' from incompatible pointer type
cp210x_get_termios_port(tty->driver_data,
^
drivers/usb/serial/cp210x.c:35:13: note: expected 'unsigned int *' but argument is of type 'tcflag_t *'
static void cp210x_get_termios_port(struct usb_serial_port *port,
^
Consistently use tcflag_t to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
The BRIM Brothers Zone DPMX is a bicycle powermeter. This ID is for the USB
serial interface in its charging dock for the control pods, via which some
settings for the pods can be modified.
Signed-off-by: Paul Jakma <paul@jakma.org>
Cc: Barry Redmond <barry@brimbrothers.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
This patch adds support for the GPIO found on the CP2105. Unlike the GPIO
provided by some of the other devices supported by the cp210x driver, the
GPIO on the CP2015 is muxed on pins otherwise used for serial control
lines. The GPIO have been configured in 2 separate banks as the choice to
configure the pins for GPIO is made separately for pins shared with each
of the 2 serial ports this device provides, though the choice is made for
all pins associated with that port in one go. The choice of whether to use
the pins for GPIO or serial is made by adding configuration to a one-time
programable PROM in the chip and can not be changed at runtime. The device
defaults to GPIO.
This device supports either push-pull or open-drain modes, it doesn't
provide an explicit input mode, though the state of the GPIO can be read
when used in open-drain mode. Like with pin use, the mode is configured in
the one-time programable PROM and can't be changed at runtime.
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Signed-off-by: Johan Hovold <johan@kernel.org>
Return -EIO on short control transfers rather than -EPROTO which is used
for lower-level transfer errors.
Signed-off-by: Johan Hovold <johan@kernel.org>
The current tiocmget implementation would fail to report errors up the
stack and instead leaked a few bits from the stack as a mask of
modem-status flags.
Fixes: 39a66b8d22 ("[PATCH] USB: CP2101 Add support for flow control")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Use kmemdup when some other buffer is immediately copied into allocated
region. It replaces call to allocation followed by memcpy, by a single
call to kmemdup.
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
These updates fixes a number of issues where resources were not properly
released on probe errors. Included is also a fix for hardware
flow-control disable for cp210x.
Support for Moxa UPort 11x0 is added to the ti_usb_3410_5052 driver, and
included are also some general code clean ups.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB-serial updates for v4.7-rc1
These updates fixes a number of issues where resources were not properly
released on probe errors. Included is also a fix for hardware
flow-control disable for cp210x.
Support for Moxa UPort 11x0 is added to the ti_usb_3410_5052 driver, and
included are also some general code clean ups.
Signed-off-by: Johan Hovold <johan@kernel.org>
