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path: root/drivers/net/mdio
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2021-11-25mdio: aspeed: Fix "Link is Down" issueDylan Hung
The issue happened randomly in runtime. The message "Link is Down" is popped but soon it recovered to "Link is Up". The "Link is Down" results from the incorrect read data for reading the PHY register via MDIO bus. The correct sequence for reading the data shall be: 1. fire the command 2. wait for command done (this step was missing) 3. wait for data idle 4. read data from data register Cc: stable@vger.kernel.org Fixes: f160e99462c6 ("net: phy: Add mdio-aspeed") Reviewed-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://lore.kernel.org/r/20211125024432.15809-1-dylan_hung@aspeedtech.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-09-28net: mdio-ipq4019: Fix the error for an optional regs resourceCai Huoqing
The second resource is optional which is only provided on the chipset IPQ5018. But the blamed commit ignores that and if the resource is not there it just fails. the resource is used like this, if (priv->eth_ldo_rdy) { val = readl(priv->eth_ldo_rdy); val |= BIT(0); writel(val, priv->eth_ldo_rdy); fsleep(IPQ_PHY_SET_DELAY_US); } This patch reverts that to still allow the second resource to be optional because other SoC have the some MDIO controller and doesn't need to second resource. Fixes: fa14d03e014a ("net: mdio-ipq4019: Make use of devm_platform_ioremap_resource()") Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20210928134849.2092-1-caihuoqing@baidu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-09-28net: mdio: mscc-miim: Fix the mdio controllerHoratiu Vultur
According to the documentation the second resource is optional. But the blamed commit ignores that and if the resource is not there it just fails. This patch reverts that to still allow the second resource to be optional because other SoC have the some MDIO controller and doesn't need to second resource. Fixes: 672a1c394950 ("net: mdio: mscc-miim: Make use of the helper function devm_platform_ioremap_resource()") Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-31net: mdio: mscc-miim: Make use of the helper function ↵Cai Huoqing
devm_platform_ioremap_resource() Use the devm_platform_ioremap_resource() helper instead of calling platform_get_resource() and devm_ioremap_resource() separately Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-31net: mdio-ipq4019: Make use of devm_platform_ioremap_resource()Cai Huoqing
Use the devm_platform_ioremap_resource() helper instead of calling platform_get_resource() and devm_ioremap_resource() separately Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
drivers/ptp/Kconfig: 55c8fca1dae1 ("ptp_pch: Restore dependency on PCI") e5f31552674e ("ethernet: fix PTP_1588_CLOCK dependencies") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-18net: mdio-mux: Handle -EPROBE_DEFER correctlySaravana Kannan
When registering mdiobus children, if we get an -EPROBE_DEFER, we shouldn't ignore it and continue registering the rest of the mdiobus children. This would permanently prevent the deferring child mdiobus from working instead of reattempting it in the future. So, if a child mdiobus needs to be reattempted in the future, defer the entire mdio-mux initialization. This fixes the issue where PHYs sitting under the mdio-mux aren't initialized correctly if the PHY's interrupt controller is not yet ready when the mdio-mux is being probed. Additional context in the link below. Fixes: 0ca2997d1452 ("netdev/of/phy: Add MDIO bus multiplexer support.") Link: https://lore.kernel.org/lkml/CAGETcx95kHrv8wA-O+-JtfH7H9biJEGJtijuPVN0V5dUKUAB3A@mail.gmail.com/#t Signed-off-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Marc Zyngier <maz@kernel.org> Tested-by: Marc Zyngier <maz@kernel.org> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18net: mdio-mux: Don't ignore memory allocation errorsSaravana Kannan
If we are seeing memory allocation errors, don't try to continue registering child mdiobus devices. It's unlikely they'll succeed. Fixes: 342fa1964439 ("mdio: mux: make child bus walking more permissive and errors more verbose") Signed-off-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Marc Zyngier <maz@kernel.org> Tested-by: Marc Zyngier <maz@kernel.org> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18net: mdio-mux: Delete unnecessary devm_kfreeSaravana Kannan
The whole point of devm_* APIs is that you don't have to undo them if you are returning an error that's going to get propagated out of a probe() function. So delete unnecessary devm_kfree() call in the error return path. Fixes: b60161668199 ("mdio: mux: Correct mdio_mux_init error path issues") Signed-off-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Marc Zyngier <maz@kernel.org> Tested-by: Marc Zyngier <maz@kernel.org> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-16MDIO: Kconfig: Specify more IPQ chipset supportedLuo Jie
The IPQ MDIO driver currently supports the chipset IPQ40xx, IPQ807x, IPQ60xx and IPQ50xx. Add the compatible 'qcom,ipq5018-mdio' because of ethernet LDO dedicated to the IPQ5018 platform. Signed-off-by: Luo Jie <luoj@codeaurora.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-16net: mdio: Add the reset function for IPQ MDIO driverLuo Jie
1. configure the MDIO clock source frequency. 2. the LDO resource is needed to configure the ethernet LDO available for CMN_PLL. Signed-off-by: Luo Jie <luoj@codeaurora.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-25net: mdiobus: withdraw fwnode_mdbiobus_registerMarcin Wojtas
The newly implemented fwnode_mdbiobus_register turned out to be problematic - in case the fwnode_/of_/acpi_mdio are built as modules, a dependency cycle can be observed during the depmod phase of modules_install, eg.: depmod: ERROR: Cycle detected: fwnode_mdio -> of_mdio -> fwnode_mdio depmod: ERROR: Found 2 modules in dependency cycles! OR: depmod: ERROR: Cycle detected: acpi_mdio -> fwnode_mdio -> acpi_mdio depmod: ERROR: Found 2 modules in dependency cycles! A possible solution could be to rework fwnode_mdiobus_register, so that to merge the contents of acpi_mdiobus_register and of_mdiobus_register. However feasible, such change would be very intrusive and affect huge amount of the of_mdiobus_register users. Since there are currently 2 users of ACPI and MDIO (xgmac_mdio and mvmdio), withdraw the fwnode_mdbiobus_register and roll back to a simple 'if' condition in affected drivers. Fixes: 62a6ef6a996f ("net: mdiobus: Introduce fwnode_mdbiobus_register()") Signed-off-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-22net: mdiobus: Introduce fwnode_mdbiobus_register()Marcin Wojtas
This patch introduces a new helper function that wraps acpi_/of_ mdiobus_register() and allows its usage via common fwnode_ interface. Fall back to raw mdiobus_register() in case CONFIG_FWNODE_MDIO is not enabled, in order to satisfy compatibility in all future user drivers. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-17net: mdio: use device_set_node() to setup both fwnode and ofIoana Ciornei
Use the newly introduced helper to setup both the of_node and the fwnode for a given device. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-17net: mdio: setup of_node for the MDIO deviceIoana Ciornei
By mistake, the of_node of the MDIO device was not setup in the patch linked below. As a consequence, any PHY driver that depends on the of_node in its probe callback was not be able to successfully finish its probe on a PHY, thus the Generic PHY driver was used instead. Fix this by actually setting up the of_node. Fixes: bc1bee3b87ee ("net: mdiobus: Introduce fwnode_mdiobus_register_phy()") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-11net: mdio: mscc-miim: Use devm_platform_get_and_ioremap_resource()Yang Yingliang
Use devm_platform_get_and_ioremap_resource() to simplify code. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-11net: mdio: Add ACPI support code for mdioCalvin Johnson
Define acpi_mdiobus_register() to Register mii_bus and create PHYs for each ACPI child node. Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Acked-by: Grant Likely <grant.likely@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-11of: mdio: Refactor of_mdiobus_register_phy()Calvin Johnson
Refactor of_mdiobus_register_phy() to use fwnode_mdiobus_register_phy(). Also, remove the of_find_mii_timestamper() since the fwnode variant is used instead. Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Grant Likely <grant.likely@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-11net: mdiobus: Introduce fwnode_mdiobus_register_phy()Calvin Johnson
Introduce fwnode_mdiobus_register_phy() to register PHYs on the mdiobus. From the compatible string, identify whether the PHY is c45 and based on this create a PHY device instance which is registered on the mdiobus. Along with fwnode_mdiobus_register_phy() also introduce fwnode_find_mii_timestamper() and fwnode_mdiobus_phy_device_register() since they are needed. While at it, also use the newly introduced fwnode operation in of_mdiobus_phy_device_register(). Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Grant Likely <grant.likely@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-11net: mii_timestamper: check NULL in unregister_mii_timestamper()Calvin Johnson
Callers of unregister_mii_timestamper() currently check for NULL value of mii_ts before calling it. Place the NULL check inside unregister_mii_timestamper() and update the callers accordingly. Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Grant Likely <grant.likely@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-11of: mdio: Refactor of_get_phy_id()Calvin Johnson
With the introduction of fwnode_get_phy_id(), refactor of_get_phy_id() to use fwnode equivalent. Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Grant Likely <grant.likely@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-11of: mdio: Refactor of_phy_find_device()Calvin Johnson
Refactor of_phy_find_device() to use fwnode_phy_find_device(). Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Grant Likely <grant.likely@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-11net: phy: Introduce fwnode_mdio_find_device()Calvin Johnson
Define fwnode_mdio_find_device() to get a pointer to the mdio_device from fwnode passed to the function. Refactor of_mdio_find_device() to use fwnode_mdio_find_device(). Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Grant Likely <grant.likely@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-10net: mido: mdio-mux-bcm-iproc: Use devm_platform_get_and_ioremap_resource()Yang Yingliang
Use devm_platform_get_and_ioremap_resource() to simplify code and avoid a null-ptr-deref by checking 'res' in it. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-01net: mdio: Fix spelling mistakesZheng Yongjun
informations ==> information typicaly ==> typically derrive ==> derive eventhough ==> even though Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
cdc-wdm: s/kill_urbs/poison_urbs/ to fix build Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-05-14net: mdio: ipq8064: enlarge sleep after read/write operationAnsuel Smith
With the use of the qca8k dsa driver, some problem arised related to port status detection. With a load on a specific port (for example a simple speed test), the driver starts to behave in a strange way and garbage data is produced. To address this, enlarge the sleep delay and address a bug for the reg offset 31 that require additional delay for this specific reg. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-14net: mdio: ipq8064: add regmap config to disable REGCACHEAnsuel Smith
mdio drivers should not use REGCHACHE. Also disable locking since it's handled by the mdio users and regmap is always accessed atomically. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-14net: mdio: ipq8064: clean whitespaces in defineAnsuel Smith
Fix mixed whitespace and tab for define spacing. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-13net: mdio: octeon: Fix some double free issuesChristophe JAILLET
'bus->mii_bus' has been allocated with 'devm_mdiobus_alloc_size()' in the probe function. So it must not be freed explicitly or there will be a double free. Remove the incorrect 'mdiobus_free' in the error handling path of the probe function and in remove function. Suggested-By: Andrew Lunn <andrew@lunn.ch> Fixes: 35d2aeac9810 ("phy: mdio-octeon: Use devm_mdiobus_alloc_size()") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-13net: mdio: thunder: Fix a double free issue in the .remove functionChristophe JAILLET
'bus->mii_bus' have been allocated with 'devm_mdiobus_alloc_size()' in the probe function. So it must not be freed explicitly or there will be a double free. Remove the incorrect 'mdiobus_free' in the remove function. Fixes: 379d7ac7ca31 ("phy: mdio-thunder: Add driver for Cavium Thunder SoC MDIO buses.") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-27net: phy: Add support for microchip SMI0 MDIO busAndrew Lunn
SMI0 is a mangled version of MDIO. The main low level difference is the MDIO C22 OP code is always 0, not 0x2 or 0x1 for Read/Write. The read/write information is instead encoded in the PHY address. Extend the bit-bang code to allow the op code to be overridden, but default to normal C22 values. Add an extra compatible to the mdio-gpio driver, and when this compatible is present, set the op codes to 0. A higher level driver, sitting on top of the basic MDIO bus driver can then implement the rest of the microchip SMI0 odderties. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-29net: mdio: Remove redundant dev_err call in mdio_mux_iproc_probe()Guobin Huang
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Guobin Huang <huangguobin4@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-16net: mdio: Add BCM6368 MDIO mux bus controllerÁlvaro Fernández Rojas
This controller is present on BCM6318, BCM6328, BCM6362, BCM6368 and BCM63268 SoCs. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-16net: mdio: Alphabetically sort header inclusionCalvin Johnson
Alphabetically sort header inclusion Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-17net: mdio: Remove of_phy_attach()Florian Fainelli
We have no in-tree users, also update the sfp-phylink.rst documentation to indicate that phy_attach_direct() is used instead of of_phy_attach(). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-15net: phy: rename PHY_IGNORE_INTERRUPT to PHY_MAC_INTERRUPTHeiner Kallweit
Some internal PHY's have their events like link change reported by the MAC interrupt. We have PHY_IGNORE_INTERRUPT to deal with this scenario. I'm not too happy with this name. We don't ignore interrupts, typically there is no interrupt exposed at a PHY level. So let's rename it to PHY_MAC_INTERRUPT. This is in line with phy_mac_interrupt(), which is called from the MAC interrupt handler to handle PHY events. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-01-19mdio-bitbang: Export mdiobb_{read,write}()Geert Uytterhoeven
Export mdiobb_read() and mdiobb_write(), so Ethernet controller drivers can call them from their MDIO read/write wrappers. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-10net: phy: Move of_mdio from drivers/of to drivers/net/mdioCalvin Johnson
Better place for of_mdio.c is drivers/net/mdio. Move of_mdio.c from drivers/of to drivers/net/mdio Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Rejecting non-native endian BTF overlapped with the addition of support for it. The rest were more simple overlapping changes, except the renesas ravb binding update, which had to follow a file move as well as a YAML conversion. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: mdio-ipq4019: add Clause 45 supportRobert Marko
While up-streaming the IPQ4019 driver it was thought that the controller had no Clause 45 support, but it actually does and its activated by writing a bit to the mode register. So lets add it as newer SoC-s use the same controller and Clause 45 compliant PHY-s. Signed-off-by: Robert Marko <robert.marko@sartura.hr> Cc: Luka Perkov <luka.perkov@sartura.hr> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: mdio-ipq4019: change defines to upper caseRobert Marko
In the commit adding the IPQ4019 MDIO driver, defines for timeout and sleep partially used lower case. Lets change it to upper case in line with the rest of driver defines. Signed-off-by: Robert Marko <robert.marko@sartura.hr> Cc: Luka Perkov <luka.perkov@sartura.hr> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-17net: mdio: octeon: Select MDIO_DEVRESAndrew Lunn
This driver makes use of devm_mdiobus_alloc_size. To ensure this is available select MDIO_DEVRES which provides it. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-27net: mdio: Move MDIO drivers into a new subdirectoryAndrew Lunn
Move all the MDIO drivers and multiplexers into drivers/net/mdio. The mdio core is however left in the phy directory, due to mutual dependencies between the MDIO core and the PHY core. Take this opportunity to sort the Kconfig based on the menuconfig strings, and move the multiplexers to the end with a separating comment. v2: Fix typo in commit message Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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