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* net: can: Use device_get_match_data()Rob Herring2024-01-191-4/+4
| | | | | | | | | | | | Use preferred device_get_match_data() instead of of_match_device() to get the driver match data. With this, adjust the includes to explicitly include the correct headers. Error checking for matching and match data was not necessary as matching is always successful if we're already in probe and the match tables always have data pointers. Signed-off-by: Rob Herring <robh@kernel.org>
* can: mscan: mpc5xxx_can: Convert to platform remove callback returning voidUwe Kleine-König2023-05-151-4/+2
| | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230512212725.143824-13-u.kleine-koenig@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: dev: fix skb drop checkOliver Hartkopp2022-11-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | In commit a6d190f8c767 ("can: skb: drop tx skb if in listen only mode") the priv->ctrlmode element is read even on virtual CAN interfaces that do not create the struct can_priv at startup. This out-of-bounds read may lead to CAN frame drops for virtual CAN interfaces like vcan and vxcan. This patch mainly reverts the original commit and adds a new helper for CAN interface drivers that provide the required information in struct can_priv. Fixes: a6d190f8c767 ("can: skb: drop tx skb if in listen only mode") Reported-by: Dariusz Stojaczyk <Dariusz.Stojaczyk@opensynergy.com> Cc: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Cc: Max Staudt <max@enpas.org> Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://lore.kernel.org/all/20221102095431.36831-1-socketcan@hartkopp.net Cc: stable@vger.kernel.org # 6.0.x [mkl: patch pch_can, too] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: mpc5xxx: mpc5xxx_can_probe(): add missing put_clock() in error pathDongliang Mu2022-10-251-3/+5
| | | | | | | | | | | | | The commit 1149108e2fbf ("can: mscan: improve clock API use") only adds put_clock() in mpc5xxx_can_remove() function, forgetting to add put_clock() in the error handling code. Fix this bug by adding put_clock() in the error handling code. Fixes: 1149108e2fbf ("can: mscan: improve clock API use") Signed-off-by: Dongliang Mu <dzm91@hust.edu.cn> Link: https://lore.kernel.org/all/20221024133828.35881-1-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* Merge tag 'powerpc-6.0-1' of ↵Linus Torvalds2022-08-071-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Add support for syscall stack randomization - Add support for atomic operations to the 32 & 64-bit BPF JIT - Full support for KASAN on 64-bit Book3E - Add a watchdog driver for the new PowerVM hypervisor watchdog - Add a number of new selftests for the Power10 PMU support - Add a driver for the PowerVM Platform KeyStore - Increase the NMI watchdog timeout during live partition migration, to avoid timeouts due to increased memory access latency - Add support for using the 'linux,pci-domain' device tree property for PCI domain assignment - Many other small features and fixes Thanks to Alexey Kardashevskiy, Andy Shevchenko, Arnd Bergmann, Athira Rajeev, Bagas Sanjaya, Christophe Leroy, Erhard Furtner, Fabiano Rosas, Greg Kroah-Hartman, Greg Kurz, Haowen Bai, Hari Bathini, Jason A. Donenfeld, Jason Wang, Jiang Jian, Joel Stanley, Juerg Haefliger, Kajol Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Masahiro Yamada, Maxime Bizon, Miaoqian Lin, Murilo Opsfelder Araújo, Nathan Lynch, Naveen N. Rao, Nayna Jain, Nicholas Piggin, Ning Qiang, Pali Rohár, Petr Mladek, Rashmica Gupta, Sachin Sant, Scott Cheloha, Segher Boessenkool, Stephen Rothwell, Uwe Kleine-König, Wolfram Sang, Xiu Jianfeng, and Zhouyi Zhou. * tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (191 commits) powerpc/64e: Fix kexec build error EDAC/ppc_4xx: Include required of_irq header directly powerpc/pci: Fix PHB numbering when using opal-phbid powerpc/64: Init jump labels before parse_early_param() selftests/powerpc: Avoid GCC 12 uninitialised variable warning powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address powerpc/xive: Fix refcount leak in xive_get_max_prio powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader powerpc/perf: Include caps feature for power10 DD1 version powerpc: add support for syscall stack randomization powerpc: Move system_call_exception() to syscall.c powerpc/powernv: rename remaining rng powernv_ functions to pnv_ powerpc/powernv/kvm: Use darn for H_RANDOM on Power9 powerpc/powernv: Avoid crashing if rng is NULL selftests/powerpc: Fix matrix multiply assist test powerpc/signal: Update comment for clarity powerpc: make facility_unavailable_exception 64s powerpc/platforms/83xx/suspend: Remove write-only global variable powerpc/platforms/83xx/suspend: Prevent unloading the driver powerpc/platforms/83xx/suspend: Reorder to get rid of a forward declaration ...
| * powerpc/mpc5xxx: Switch mpc5xxx_get_bus_frequency() to use fwnodeAndy Shevchenko2022-06-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Switch mpc5xxx_get_bus_frequency() to use fwnode in order to help cleaning up other parts of the kernel from OF specific code. No functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # for i2c-mpc Acked-by: Wolfram Sang <wsa@kernel.org> # for the I2C part Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for mscan/mpc5xxx_can Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220507100147.5802-2-andriy.shevchenko@linux.intel.com
* | can: tree-wide: advertise software timestamping capabilitiesVincent Mailhol2022-07-281-0/+5
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, some CAN drivers support hardware timestamping, some do not. But userland has no method to query which features are supported (aside maybe of getting RX messages and observe whether or not hardware timestamps stay at zero). The canonical way for a network driver to advertised what kind of timestamping it supports is to implement ethtool_ops::get_ts_info(). This patch only targets the CAN drivers which *do not* support hardware timestamping. For each of those CAN drivers, implement the get_ts_info() using the generic ethtool_op_get_ts_info(). This way, userland can do: | $ ethtool --show-time-stamping canX to confirm the device timestamping capacities. N.B. the drivers which support hardware timestamping will be migrated in separate patches. Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://lore.kernel.org/all/20220727101641.198847-6-mailhol.vincent@wanadoo.fr [mkl: mscan: add missing mscan_ethtool_ops] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: can-dev: move to netif_napi_add_weight()Jakub Kicinski2022-05-191-1/+1
| | | | | | | | | | | We want to remove the weight argument from the basic version of the netif_napi_add() call. Move all the callers in drivers/net/can that pass a custom weight (i.e. not NAPI_POLL_WEIGHT or 64) to the netif_napi_add_weight() API. Link: https://lore.kernel.org/all/20220517002345.1812104-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: mpc5xxx_can: Prepare cleanup of powerpc's asm/prom.hChristophe Leroy2022-04-191-0/+2
| | | | | | | | | | | powerpc's asm/prom.h brings some headers that it doesn't need itself. In order to clean it up, first add missing headers in users of asm/prom.h Link: https://lore.kernel.org/all/878888f9057ad2f66ca0621a0007472bf57f3e3d.1648833432.git.christophe.leroy@csgroup.eu Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: do not increase tx_bytes statistics for RTR framesVincent Mailhol2022-01-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The actual payload length of the CAN Remote Transmission Request (RTR) frames is always 0, i.e. no payload is transmitted on the wire. However, those RTR frames still use the DLC to indicate the length of the requested frame. As such, net_device_stats::tx_bytes should not be increased when sending RTR frames. The function can_get_echo_skb() already returns the correct length, even for RTR frames (c.f. [1]). However, for historical reasons, the drivers do not use can_get_echo_skb()'s return value and instead, most of them store a temporary length (or dlc) in some local structure or array. Using the return value of can_get_echo_skb() solves the issue. After doing this, such length/dlc fields become unused and so this patch does the adequate cleaning when needed. This patch fixes all the CAN drivers. Finally, can_get_echo_skb() is decorated with the __must_check attribute in order to force future drivers to correctly use its return value (else the compiler would emit a warning). [1] commit ed3320cec279 ("can: dev: __can_get_echo_skb(): fix real payload length return value for RTR frames") Link: https://lore.kernel.org/all/20211207121531.42941-6-mailhol.vincent@wanadoo.fr Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Cc: Yasushi SHOJI <yashi@spacecubics.com> Cc: Oliver Hartkopp <socketcan@hartkopp.net> Cc: Stephane Grosjean <s.grosjean@peak-system.com> Cc: Andreas Larsson <andreas@gaisler.com> Tested-by: Jimmy Assarsson <extja@kvaser.com> # kvaser Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Acked-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2 Tested-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2 [mkl: add conversion for grcan] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: do not increase rx_bytes statistics for RTR framesVincent Mailhol2022-01-051-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The actual payload length of the CAN Remote Transmission Request (RTR) frames is always 0, i.e. no payload is transmitted on the wire. However, those RTR frames still use the DLC to indicate the length of the requested frame. As such, net_device_stats::rx_bytes should not be increased for the RTR frames. This patch fixes all the CAN drivers. Link: https://lore.kernel.org/all/20211207121531.42941-5-mailhol.vincent@wanadoo.fr Cc: Marc Kleine-Budde <mkl@pengutronix.de> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Cc: Chandrasekar Ramakrishnan <rcsekar@samsung.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Cc: Yasushi SHOJI <yashi@spacecubics.com> Cc: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com> Cc: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Stephane Grosjean <s.grosjean@peak-system.com> Tested-by: Jimmy Assarsson <extja@kvaser.com> # kvaser Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Acked-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2 Tested-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2 Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: do not increase rx statistics when generating a CAN rx error message frameVincent Mailhol2022-01-051-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CAN error message frames (i.e. error skb) are an interface specific to socket CAN. The payload of the CAN error message frames does not correspond to any actual data sent on the wire. Only an error flag and a delimiter are transmitted when an error occurs (c.f. ISO 11898-1 section 10.4.4.2 "Error flag"). For this reason, it makes no sense to increment the rx_packets and rx_bytes fields of struct net_device_stats because no actual payload were transmitted on the wire. This patch fixes all the CAN drivers. Link: https://lore.kernel.org/all/20211207121531.42941-2-mailhol.vincent@wanadoo.fr CC: Marc Kleine-Budde <mkl@pengutronix.de> CC: Nicolas Ferre <nicolas.ferre@microchip.com> CC: Alexandre Belloni <alexandre.belloni@bootlin.com> CC: Ludovic Desroches <ludovic.desroches@microchip.com> CC: Chandrasekar Ramakrishnan <rcsekar@samsung.com> CC: Maxime Ripard <mripard@kernel.org> CC: Chen-Yu Tsai <wens@csie.org> CC: Jernej Skrabec <jernej.skrabec@gmail.com> CC: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com> CC: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com> CC: Michal Simek <michal.simek@xilinx.com> CC: Stephane Grosjean <s.grosjean@peak-system.com> Tested-by: Jimmy Assarsson <extja@kvaser.com> # kvaser Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Acked-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2 Tested-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2 Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: mpc5xxx_can: Make use of the helper function dev_err_probe()Cai Huoqing2021-10-241-4/+2
| | | | | | | | | | | When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and simplify the code. Link: https://lore.kernel.org/all/20210915145726.7092-1-caihuoqing@baidu.com Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: mpc5xxx_can: mpc5xxx_can_probe(): remove useless BUG_ON()Tang Bin2021-08-251-1/+0
| | | | | | | | | | In the function mpc5xxx_can_probe(), the variable 'data' has already been determined in the above code, so the BUG_ON() in this place is useless, remove it. Link: https://lore.kernel.org/r/20210823141033.17876-1-tangbin@cmss.chinamobile.com Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: mpc5xxx_can: mpc5xxx_can_probe(): use of_device_get_match_data ↵Tang Bin2021-08-251-4/+2
| | | | | | | | | | | to simplify code Retrieve OF match data, it's better and cleaner to use 'of_device_get_match_data' over 'of_match_device'. Link: https://lore.kernel.org/r/20210823113338.3568-4-tangbin@cmss.chinamobile.com Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: dev: can_get_echo_skb(): extend to return can frame lengthMarc Kleine-Budde2021-01-141-1/+1
| | | | | | | | | | | | | In order to implement byte queue limits (bql) in CAN drivers, the length of the CAN frame needs to be passed into the networking stack after queueing and after transmission completion. To avoid to calculate this length twice, extend can_get_echo_skb() to return that value. Convert all users of this function, too. Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://lore.kernel.org/r/20210111141930.693847-14-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: dev: can_put_echo_skb(): extend to handle frame_lenVincent Mailhol2021-01-141-1/+1
| | | | | | | | | | | | | | | | | | Add a frame_len argument to can_put_echo_skb() which is used to save length of the CAN frame into field frame_len of struct can_skb_priv so that it can be later used after transmission completion. Convert all users of this function, too. Drivers which implement BQL call can_put_echo_skb() with the output of can_skb_get_frame_len(skb) and drivers which do not simply pass zero as an input (in the same way that NULL would be given to can_get_echo_skb()). This way, we have a nice symmetry between the two echo functions. Link: https://lore.kernel.org/r/20210111061335.39983-1-mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://lore.kernel.org/r/20210111141930.693847-13-mkl@pengutronix.de Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
* can: replace can_dlc as variable/element for payload lengthOliver Hartkopp2020-11-201-10/+10
| | | | | | | | | | | | | | | The naming of can_dlc as element of struct can_frame and also as variable name is misleading as it claims to be a 'data length CODE' but in reality it always was a plain data length. With the indroduction of a new 'len' element in struct can_frame we can now remove can_dlc as name and make clear which of the former uses was a plain length (-> 'len') or a data length code (-> 'dlc') value. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Link: https://lore.kernel.org/r/20201120100444.3199-1-socketcan@hartkopp.net [mkl: gs_usb: keep struct gs_host_frame::can_dlc as is] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: rename get_can_dlc() macro with can_cc_dlc2len()Oliver Hartkopp2020-11-201-1/+1
| | | | | | | | | | | | The get_can_dlc() macro is used to ensure the payload length information of the Classical CAN frame to be max 8 bytes (the CAN_MAX_DLEN). Rename the macro and use the correct constant in preparation of the len/dlc cleanup for Classical CAN frames. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Link: https://lore.kernel.org/r/20201110101852.1973-3-socketcan@hartkopp.net Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: simplify clock enable/disableZhang Changzhong2020-09-211-18/+10
| | | | | | | | | All the NULL checks are pointless, clk_*() routines already deal with NULL just fine. Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Link: https://lore.kernel.org/r/1594972875-27631-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: mpc5xxx_can: update contact emailWolfram Sang2020-09-211-1/+1
| | | | | | | | | The 'pengutronix' address is defunct for years. Use the proper contact address. Signed-off-by: Wolfram Sang <wsa@kernel.org> Link: https://lore.kernel.org/r/20200502142657.19199-1-wsa@kernel.org Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: mark expected switch fall-throughMarc Kleine-Budde2020-09-211-0/+1
| | | | | | | | | | | | | | | | As -Wimplicit-fallthrough is now enabled the mscan driver shows this warning, which is fixed by this patch: drivers/net/can/mscan/mscan.c: In function ‘mscan_start_xmit’: drivers/net/can/mscan/mscan.c:211:3: warning: this statement may fall through [-Wimplicit-fallthrough=] 211 | netif_stop_queue(dev); | ^~~~~~~~~~~~~~~~~~~~~ drivers/net/can/mscan/mscan.c:212:2: note: here 212 | case 2: | ^~~~ Link: https://lore.kernel.org/r/20200915223527.1417033-17-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* treewide: replace '---help---' in Kconfig files with 'help'Masahiro Yamada2020-06-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
* can: mscan: mscan_rx_poll(): fix rx path lockup when returning from polling ↵Florian Faber2020-01-021-11/+10
| | | | | | | | | | | | | | | | | | | | to irq mode Under load, the RX side of the mscan driver can get stuck while TX still works. Restarting the interface locks up the system. This behaviour could be reproduced reliably on a MPC5121e based system. The patch fixes the return value of the NAPI polling function (should be the number of processed packets, not constant 1) and the condition under which IRQs are enabled again after polling is finished. With this patch, no more lockups were observed over a test period of ten days. Fixes: afa17a500a36 ("net/can: add driver for mscan family & mpc52xx_mscan") Signed-off-by: Florian Faber <faber@faberman.de> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 344Thomas Gleixner2019-06-053-36/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 15 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000437.427740574@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner2019-05-212-0/+2
| | | | | | | | | | | | | | Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* can: mpc5xxx_can: check of_iomap return before useNicholas Mc Guire2018-07-231-0/+5
| | | | | | | | | | of_iomap() can return NULL so that return needs to be checked and NULL treated as failure. While at it also take care of the missing of_node_put() in the error path. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Fixes: commit afa17a500a36 ("net/can: add driver for mscan family & mpc52xx_mscan") Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* treewide: replace dev->trans_start update with helperFlorian Westphal2016-05-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace all trans_start updates with netif_trans_update helper. change was done via spatch: struct net_device *d; @@ - d->trans_start = jiffies + netif_trans_update(d) Compile tested only. Cc: user-mode-linux-devel@lists.sourceforge.net Cc: linux-xtensa@linux-xtensa.org Cc: linux1394-devel@lists.sourceforge.net Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Cc: MPT-FusionLinux.pdl@broadcom.com Cc: linux-scsi@vger.kernel.org Cc: linux-can@vger.kernel.org Cc: linux-parisc@vger.kernel.org Cc: linux-omap@vger.kernel.org Cc: linux-hams@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: linux-s390@vger.kernel.org Cc: devel@driverdev.osuosl.org Cc: b.a.t.m.a.n@lists.open-mesh.org Cc: linux-bluetooth@vger.kernel.org Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Acked-by: Antonio Quartulli <a@unstable.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
* can: constify of_device_id arrayFabian Frederick2015-03-171-1/+1
| | | | | | | | of_device_id is always used as const. (See driver.of_match_table and open firmware functions) Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds2014-12-151-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
| * net: can: mscan: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0
| | | | | | | | | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* | can: mscan: Consolidate and unify state change handlingAndri Yngvason2014-12-071-34/+14
|/ | | | | | | | Replacing error state change handling with the new mechanism. Signed-off-by: Andri Yngvason <andri.yngvason@marel.com> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* net: can: use kbuild magic to inherit debug settingsWolfram Sang2014-08-181-2/+0
| | | | | | | | No need to manually copy debug settings into subdir Makefiles. kbuild has a mechanism for inheriting, so let's use it. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: Fix Kconfig dependenciesJean Delvare2014-05-191-1/+1
| | | | | | | | | | | The only driver based on MSCAN at the moment is for PPC machines, so it makes no sense to present the menu on M68K. The menu will always be empty there. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: Unify MTU settings for CAN interfacesOliver Hartkopp2014-03-171-3/+4
| | | | | | | | | | | | | CAN interfaces only support MTU values of 16 (CAN 2.0) and 72 (CAN FD). Setting the MTU to other values is pointless but it does not really hurt. With the introduction of the CAN FD support in drivers/net/can a new function to switch the MTU for CAN FD has been introduced. This patch makes use of this can_change_mtu() function to check for correct MTU settings also in legacy CAN (2.0) devices. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* Merge remote-tracking branch 'agust/next' into nextBenjamin Herrenschmidt2014-01-291-116/+154
|\ | | | | | | | | | | | | | | << Switch mpc512x to the common clock framework and adapt mpc512x drivers to use the new clock driver. Old PPC_CLOCK code is removed entirely since there are no users any more. >>
| * net: can: mscan: remove non-CCF code for MPC512xGerhard Sittig2014-01-121-141/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | transition to the common clock framework has completed and the PPC_CLOCK is no longer available for the MPC512x platform, remove the now obsolete code path of the mpc5xxx mscan driver which accessed clock control module registers directly Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Cc: linux-can@vger.kernel.org Signed-off-by: Gerhard Sittig <gsi@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de>
| * net: can: mscan: adjust to common clock support for mpc512xGerhard Sittig2014-01-121-0/+179
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implement a .get_clock() callback for the MPC512x platform which uses the common clock infrastructure (eliminating direct access to the clock control registers from within the CAN network driver), and provide the corresponding .put_clock() callback to release resources after use acquire both the clock items for register access ("ipg") as well as for wire communication ("can") keep the previous implementation of MPC512x support in place during migration, this results in a readable diff of the change this change is neutral to the MPC5200 platform Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Cc: linux-can@vger.kernel.org Signed-off-by: Gerhard Sittig <gsi@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* | can: Fix FSF address in file headersJeff Kirsher2013-12-173-6/+3
|/ | | | | | | | | | | | Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: Wolfgang Grandegger <wg@grandegger.com> CC: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: Remove extern from function prototypesJoe Perches2013-09-241-3/+3
| | | | | | | | | | | | | There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* can: mscan: improve clock API useGerhard Sittig2013-08-293-7/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | the .get_clock() callback is run from probe() and might allocate resources, introduce a .put_clock() callback that is run from remove() to undo any allocation activities prepare and enable the clocks in open(), disable and unprepare the clocks in close() if clocks were acquired during probe(), to not assume knowledge about which activities are done in probe() and remove() use devm_get_clk() to lookup the SYS and REF clocks, to have the clocks put upon device shutdown store pointers to data structures upon successful allocation already instead of deferral until complete setup, such that subroutines in the setup sequence may access those data structures as well to track their resource acquisition since clock allocation remains optional, the release callback as well as the enable/disable calls in open/close are optional as well Cc: linux-can@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Gerhard Sittig <gsi@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mscan: add a comment on reg to idx mappingGerhard Sittig2013-08-291-1/+4
| | | | | | | | | | | add a comment about the magic of deriving an MSCAN component index from the peripheral's physical address / register offset Cc: linux-can@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Gerhard Sittig <gsi@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* net: can: use platform_{get,set}_drvdata()Jingoo Han2013-06-031-6/+4
| | | | | | | | | | | | Use the wrapper functions for getting and setting the driver data using platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev, so we can directly pass a struct platform_device. Also, unnecessary dev_set_drvdata() is removed, because the driver core clears the driver data to NULL after device_release or on probe failure. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: Kconfig: convert 'depends on CAN_DEV' into 'if CAN_DEV...endif' blockMarc Kleine-Budde2013-01-261-1/+1
| | | | | | | | This patch adds an 'if CAN_DEV...endif' Block around the CAN driver symbols in drivers/net/can/Kconfig. So the 'depends on CAN' dependencies can be removed. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* drivers/net: fix up function prototypes after __dev* removalsGreg Kroah-Hartman2012-12-071-8/+4
| | | | | | | | | | | | The __dev* removal patches for the network drivers ended up messing up the function prototypes for a bunch of drivers. This patch fixes all of them back up to be properly aligned. Bonus is that this almost removes 100 lines of code, always a nice surprise. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* can: remove __dev* attributesBill Pemberton2012-12-031-12/+12
| | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Cc: linux-can@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* can: mscan: remove obsolete variable open_timeMarc Kleine-Budde2012-11-292-9/+0
| | | | | | | | The variable open_time in the struct mscan_priv was used to protect mscan_do_set_mode() only to be called, if the interface is up. Now the CAN device infrastructure takes care of this. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mpc5xxx_can: add MODULE_DEVICE_TABLEMarc Kleine-Budde2012-11-271-0/+1
| | | | | | | This patch adds a MODULE_DEVICE_TABLE for the of bindings, so that the module can be loaded automatically by udev. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: mpc5xxx_can: fix section type conflictMarc Kleine-Budde2012-10-041-4/+4
| | | | | | | | | | | | | | | | | | | | | Since commit: 6d99c4c can: mpc5xxx_can: make data used as *of_device_id.data const both "struct mpc5xxx_can_data mpc5200_can_data" and "mpc5121_can_data" are marked as "const" but also as "__devinitdata". This leads to the following compile error: drivers/net/can/mscan/mpc5xxx_can.c:383: error: mpc5200_can_data causes a section type conflict drivers/net/can/mscan/mpc5xxx_can.c:383: error: mpc5200_can_data causes a section type conflict drivers/net/can/mscan/mpc5xxx_can.c:388: error: mpc5121_can_data causes a section type conflict drivers/net/can/mscan/mpc5xxx_can.c:388: error: mpc5121_can_data causes a section type conflict This patch changes the "__devinitdata" to "__devinitconst" and marks the "struct of_device_id mpc5xxx_can_table" as "const" and "__devinitconst", too. Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2012-10-021-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking changes from David Miller: 1) GRE now works over ipv6, from Dmitry Kozlov. 2) Make SCTP more network namespace aware, from Eric Biederman. 3) TEAM driver now works with non-ethernet devices, from Jiri Pirko. 4) Make openvswitch network namespace aware, from Pravin B Shelar. 5) IPV6 NAT implementation, from Patrick McHardy. 6) Server side support for TCP Fast Open, from Jerry Chu and others. 7) Packet BPF filter supports MOD and XOR, from Eric Dumazet and Daniel Borkmann. 8) Increate the loopback default MTU to 64K, from Eric Dumazet. 9) Use a per-task rather than per-socket page fragment allocator for outgoing networking traffic. This benefits processes that have very many mostly idle sockets, which is quite common. From Eric Dumazet. 10) Use up to 32K for page fragment allocations, with fallbacks to smaller sizes when higher order page allocations fail. Benefits are a) less segments for driver to process b) less calls to page allocator c) less waste of space. From Eric Dumazet. 11) Allow GRO to be used on GRE tunnels, from Eric Dumazet. 12) VXLAN device driver, one way to handle VLAN issues such as the limitation of 4096 VLAN IDs yet still have some level of isolation. From Stephen Hemminger. 13) As usual there is a large boatload of driver changes, with the scale perhaps tilted towards the wireless side this time around. Fix up various fairly trivial conflicts, mostly caused by the user namespace changes. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1012 commits) hyperv: Add buffer for extended info after the RNDIS response message. hyperv: Report actual status in receive completion packet hyperv: Remove extra allocated space for recv_pkt_list elements hyperv: Fix page buffer handling in rndis_filter_send_request() hyperv: Fix the missing return value in rndis_filter_set_packet_filter() hyperv: Fix the max_xfer_size in RNDIS initialization vxlan: put UDP socket in correct namespace vxlan: Depend on CONFIG_INET sfc: Fix the reported priorities of different filter types sfc: Remove EFX_FILTER_FLAG_RX_OVERRIDE_IP sfc: Fix loopback self-test with separate_tx_channels=1 sfc: Fix MCDI structure field lookup sfc: Add parentheses around use of bitfield macro arguments sfc: Fix null function pointer in efx_sriov_channel_type vxlan: virtual extensible lan igmp: export symbol ip_mc_leave_group netlink: add attributes to fdb interface tg3: unconditionally select HWMON support when tg3 is enabled. Revert "net: ti cpsw ethernet: allow reading phy interface mode from DT" gre: fix sparse warning ...
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