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path: root/drivers/net/can/usb/esd_usb2.c
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2022-06-25can/esd_usb2: Rename esd_usb2.c to esd_usb.cFrank Jungclaus1-1154/+0
As suggested by Vincent, renaming of esd_usb2.c to esd_usb.c and according to that, adaption of Kconfig and Makfile, too. Link: https://lore.kernel.org/all/20220624190517.2299701-2-frank.jungclaus@esd.eu Signed-off-by: Frank Jungclaus <frank.jungclaus@esd.eu> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-05can: do not increase tx_bytes statistics for RTR framesVincent Mailhol1-4/+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>
2022-01-05can: do not increase rx_bytes statistics for RTR framesVincent Mailhol1-2/+3
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>
2022-01-05can: do not increase rx statistics when generating a CAN rx error message frameVincent Mailhol1-2/+0
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>
2021-08-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-2/+2
drivers/net/wwan/mhi_wwan_mbim.c - drop the extra arg. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-26can: usb: esd_usb2: esd_usb2_rx_event(): fix the interchange of the CAN RX ↵Stefan Mätje1-2/+2
and TX error counters This patch fixes the interchanged fetch of the CAN RX and TX error counters from the ESD_EV_CAN_ERROR_EXT message. The RX error counter is really in struct rx_msg::data[2] and the TX error counter is in struct rx_msg::data[3]. Fixes: 96d8e90382dc ("can: Add driver for esd CAN-USB/2 device") Link: https://lore.kernel.org/r/20210825215227.4947-2-stefan.maetje@esd.eu Cc: stable@vger.kernel.org Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-07-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-1/+15
Conflicting commits, all resolutions pretty trivial: drivers/bus/mhi/pci_generic.c 5c2c85315948 ("bus: mhi: pci-generic: configurable network interface MRU") 56f6f4c4eb2a ("bus: mhi: pci_generic: Apply no-op for wake using sideband wake boolean") drivers/nfc/s3fwrn5/firmware.c a0302ff5906a ("nfc: s3fwrn5: remove unnecessary label") 46573e3ab08f ("nfc: s3fwrn5: fix undefined parameter values in dev_err()") 801e541c79bb ("nfc: s3fwrn5: fix undefined parameter values in dev_err()") MAINTAINERS 7d901a1e878a ("net: phy: add Maxlinear GPY115/21x/24x driver") 8a7b46fa7902 ("MAINTAINERS: add Yasushi SHOJI as reviewer for the Microchip CAN BUS Analyzer Tool driver") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-07-30can: esd_usb2: fix memory leakPavel Skripkin1-1/+15
In esd_usb2_setup_rx_urbs() MAX_RX_URBS coherent buffers are allocated and there is nothing, that frees them: 1) In callback function the urb is resubmitted and that's all 2) In disconnect function urbs are simply killed, but URB_FREE_BUFFER is not set (see esd_usb2_setup_rx_urbs) and this flag cannot be used with coherent buffers. So, all allocated buffers should be freed with usb_free_coherent() explicitly. Side note: This code looks like a copy-paste of other can drivers. The same patch was applied to mcba_usb driver and it works nice with real hardware. There is no change in functionality, only clean-up code for coherent buffers. Fixes: 96d8e90382dc ("can: Add driver for esd CAN-USB/2 device") Link: https://lore.kernel.org/r/b31b096926dcb35998ad0271aac4b51770ca7cc8.1627404470.git.paskripkin@gmail.com Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-07-25can: esd_usb2: use DEVICE_ATTR_RO() helper macroZhen Lei1-6/+6
Use DEVICE_ATTR_RO() helper macro instead of plain DEVICE_ATTR(), which makes the code a bit shorter and easier to read. Link: https://lore.kernel.org/r/20210603110902.11930-1-thunder.leizhen@huawei.com Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: dev: can_free_echo_skb(): extend to return can frame lengthMarc Kleine-Budde1-2/+2
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 even if the transmission failed for some reason. To avoid to calculate this length twice, extend can_free_echo_skb() to return that value. Convert all users of this function, too. This patch is the natural extension of commit: | 9420e1d495e2 ("can: dev: can_get_echo_skb(): extend to return can | frame length") Link: https://lore.kernel.org/r/20210319142700.305648-3-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-01-14can: dev: can_get_echo_skb(): extend to return can frame lengthMarc Kleine-Budde1-1/+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>
2021-01-14can: dev: can_put_echo_skb(): extend to handle frame_lenVincent Mailhol1-1/+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>
2020-11-20can: drivers: add len8_dlc support for esd_usb2 CAN adapterStefan Mätje1-6/+8
Support the Classical CAN raw DLC functionality to send and receive DLC values from 9 .. 15 for the Classical CAN capable CAN network driver esd_usb that supports the esd CAN-USB/2 and CAN-USB/Micro devices: - esd_usb2 Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu> Tested-by: Stefan Mätje <stefan.maetje@esd.eu> Link: https://lore.kernel.org/r/20201116184430.25462-2-stefan.maetje@esd.eu [mkl: rewrapped some long lines] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2020-11-20can: replace can_dlc as variable/element for payload lengthOliver Hartkopp1-8/+8
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>
2020-11-20can: rename get_can_dlc() macro with can_cc_dlc2len()Oliver Hartkopp1-1/+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>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 164Thomas Gleixner1-13/+1
Based on 1 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 as published by the free software foundation version 2 of the license 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 write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 12 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> 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/20190527070033.745497013@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-26drivers/net: Use octal not symbolic permissionsJoe Perches1-3/+3
Prefer the direct use of octal for permissions. Done with checkpatch -f --types=SYMBOLIC_PERMS --fix-inplace and some typing. Miscellanea: o Whitespace neatening around these conversions. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-08can: esd_usb2: cancel urb on -EPIPE and -EPROTOMartin Kelly1-0/+2
In mcba_usb, we have observed that when you unplug the device, the driver will endlessly resubmit failing URBs, which can cause CPU stalls. This issue is fixed in mcba_usb by catching the codes seen on device disconnect (-EPIPE and -EPROTO). This driver also resubmits in the case of -EPIPE and -EPROTO, so fix it in the same way. Signed-off-by: Martin Kelly <mkelly@xevo.com> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2017-10-19can: esd_usb2: Fix can_dlc value for received RTR, framesStefan Mätje1-1/+1
The dlc member of the struct rx_msg contains also the ESD_RTR flag to mark received RTR frames. Without the fix the can_dlc value for received RTR frames would always be set to 8 by get_can_dlc() instead of the received value. Fixes: 96d8e90382dc ("can: Add driver for esd CAN-USB/2 device") Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2016-08-14net: can: usb: esd_usb2: don't print error when allocating urb failsWolfram Sang1-3/+0
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04treewide: replace dev->trans_start update with helperFlorian Westphal1-2/+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>
2015-11-23can: remove obsolete assignment for CAN protocol error typeOliver Hartkopp1-1/+0
The assignment 'cf->data[2] |= CAN_ERR_PROT_UNSPEC' used at CAN error message creation time is obsolete as CAN_ERR_PROT_UNSPEC is zero and cf->data[2] is initialized with zero in alloc_can_err_skb() anyway. So we could either assign 'cf->data[2] = CAN_ERR_PROT_UNSPEC' correctly or we can remove the obsolete OR operation entirely. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-07-15can: esd_usb2: don't touch skb after netif_rx()Marc Kleine-Budde1-4/+2
There is no guarantee that the skb is in the same state after calling net_receive_skb() or netif_rx(). It might be freed or reused. Not really harmful as its a read access, except you turn on the proper debugging options which catch a use after free. Cc: Thomas Körper <thomas.koerper@esd.eu> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-03-23can: esd_usb2: Fix sparse warningsThomas Körper1-2/+2
The hnd field of the structs does not need to be __le32: the device just returns the value without using it itself. Signed-off-by: Thomas Körper <thomas.koerper@esd.eu> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-01-20can: move can_stats.bus_off++ from can_bus_off into can_change_stateAndri Yngvason1-0/+1
In order to be able to move the stats increment from can_bus_off() into can_change_state(), the increment had to be moved back into code that was using can_bus_off() but not can_change_state(). As a side-effect, this patch fixes the following bugs: * Redundant call to can_bus_off() in c_can. * Bus-off counted twice in xilinx_can. Signed-off-by: Andri Yngvason <andri.yngvason@marel.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-11-18can: remove unused variableSudip Mukherjee1-2/+0
these variable were only assigned some values, but then never reused again. so they are safe to be removed. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-11-18can: esd_usb2: fix memory leak on disconnectAlexey Khoroshilov1-0/+1
It seems struct esd_usb2 dev is not deallocated on disconnect. The patch adds the missing deallocation. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-17can: populate netdev::dev_id for udev discriminationChristopher R. Baker1-0/+1
My objective is to be able to totally discriminate CAN ports on multi-port cards via udev so as to rename them to semantically interesting/unique names for my system (e.g., "ecuCAN" and "auxCAN" instead of "can0" and "can1"). The following patch assigns the dev_id field to match the channel number on all multi-channel devices. I can only test my two-port Peak PCI card, but it works as expected: ATTRS{dev_id} now expresses the port number and my udev rules now unambiguously pick out and rename my individual CAN ports. Signed-off-by: Christopher R. Baker <cbaker@rec.ri.cmu.edu> Tested-by: Oliver Hartkopp <socketcan@hartkopp.net> [PEAK PCAN-USB pro and EMS PCMCIA] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-03-17can: Unify MTU settings for CAN interfacesOliver Hartkopp1-0/+1
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>
2014-01-16drivers/net: delete non-required instances of include <linux/init.h>Paul Gortmaker1-1/+0
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. This covers everything under drivers/net except for wireless, which has been submitted separately. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-19net: can: esd_usb2: check index of array before accessingMaximilian Schneider1-0/+10
The esd_usb2_read_bulk_callback() function is parsing the data that comes from the USB CAN adapter. One datum is used as an index to access the dev->nets[] array. This patch adds the missing bounds checking. Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu> Signed-off-by: Maximilian Schneider <max@schneidersoft.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-06-03net: can: esd_usb2: Do not do dma on the stackOlivier Sobrie1-51/+76
smatch reports the following warnings: drivers/net/can/usb/esd_usb2.c:640 esd_usb2_start() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:846 esd_usb2_close() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:855 esd_usb2_close() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:923 esd_usb2_set_bittiming() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:1047 esd_usb2_probe() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:1053 esd_usb2_probe() error: doing dma on the stack (&msg) See "Documentation/DMA-API-HOWTO.txt" section "What memory is DMA'able?" Signed-off-by: Olivier Sobrie <olivier@sobrie.be> Cc: Matthias Fuchs <matthias.fuchs@esd.eu> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-29can: esd_usb2: remove obsolete variable open_timeMarc Kleine-Budde1-10/+0
The variable open_time in the struct esd_usb2_net_priv was used to protect esd_usb2_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>
2012-11-15can: usb: esd_usb2: Add support for CAN-USB/MicroMatthias Fuchs1-6/+25
This patch extends the esd_usb2 driver to support the tiny CAN-USB/Micro CAN/USB interface. Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-15can: usb: esd_usb2: Add support for listen-only modeMatthias Fuchs1-0/+4
Add listen-only mode for esd_usb2 driver. Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-07-20can: mark bittiming_const pointer in struct can_priv as constMarc Kleine-Budde1-1/+1
This patch marks the bittiming_const pointer as in the struct can_pric as "const". This allows us to mark the struct can_bittiming_const in the CAN drivers as "const", too. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-02-03can: replace the dev_dbg/info/err/... with the new netdev_xxx macrosWolfgang Grandegger1-15/+12
Cc: uclinux-dist-devel@blackfin.uclinux.org Cc: Anant Gole <anantgole@ti.com> Cc: Chris Elston <celston@katalix.com> Cc: Sebastian Haas <haas@ems-wuensche.com> Cc: Matthias Fuchs <matthias.fuchs@esd.eu> Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Sebastian Haas <dev@sebastianhaas.info> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2011-11-18USB: convert drivers/net/* to use module_usb_driver()Greg Kroah-Hartman1-22/+1
This converts the drivers in drivers/net/* to use the module_usb_driver() macro which makes the code smaller and a bit simpler. Added bonus is that it removes some unneeded kernel log messages about drivers loading and/or unloading. Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Samuel Ortiz <samuel@sortiz.org> Cc: Oliver Neukum <oliver@neukum.name> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Petko Manolov <petkan@users.sourceforge.net> Cc: Steve Glendinning <steve.glendinning@smsc.com> Cc: Christian Lamparter <chunkeey@googlemail.com> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Dan Williams <dcbw@redhat.com> Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Cc: Ivo van Doorn <IvDoorn@gmail.com> Cc: Gertjan van Wingerde <gwingerde@gmail.com> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Cc: Herton Ronaldo Krzesinski <herton@canonical.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Chaoming Li <chaoming_li@realsil.com.cn> Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi> Cc: "David S. Miller" <davem@davemloft.net> Cc: Roel Kluin <roel.kluin@gmail.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Jiri Pirko <jpirko@redhat.com> Cc: Pavel Roskin <proski@gnu.org> Cc: Yoann DI-RUZZA <y.diruzza@lim.eu> Cc: George <george0505@realtek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-15can: wrong index used in inner looproel kluin1-3/+3
Index i was already used in the outer loop. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-04can: Add driver for esd CAN-USB/2 deviceMatthias Fuchs1-0/+1132
This patch adds a driver for esd's USB high speed CAN interface. The driver supports devices with multiple CAN interfaces. Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>