Resending: In my previous e-mail, I forgot to include the linux-kernel@xxxxxxxxxxxxxxx in the cover letter which broke the chain reply... Sorry for the spam. The purpose of this patch series is to introduce a new CAN USB driver to support ETAS USB interfaces (ES58X series). During development, issues in drivers/net/can/dev.c where discovered, the fix for those issues are included in this patch series. We also propose to add two helper functions in include/linux/can/dev.h which we think can benefit other drivers: get_can_len() and can_bit_time(). The driver indirectly relies on https://lkml.org/lkml/2020/9/26/251 ([PATCH] can: raw: add missing error queue support) for the call to skb_tx_timestamp() to work but can still compile without it. *Side notes*: scripts/checkpatch.pl returns 4 'checks' findings in [PATCH 5/6]. All those findings are of type: "Macro argument reuse 'x' possible side-effects?". Those arguments reuse are actually made by calling either __stringify() or sizeof_field() which are both pre-processor constant. Furthermore, those macro are never called with arguments sensible to side-effects. So no actual side effect would occur. Thank you for your comments. Vincent Mailhol (6): can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context can: dev: add a helper function to get the correct length of Classical frames can: dev: __can_get_echo_skb(): fix the return length can: dev: add a helper function to calculate the duration of one bit can: usb: etas_es58X: add support for ETAS ES58X CAN USB interfaces USB: cdc-acm: blacklist ETAS ES58X device drivers/net/can/dev.c | 26 +- drivers/net/can/usb/Kconfig | 9 + drivers/net/can/usb/Makefile | 1 + drivers/net/can/usb/etas_es58x/Makefile | 4 + drivers/net/can/usb/etas_es58x/es581_4.c | 560 ++++ drivers/net/can/usb/etas_es58x/es581_4.h | 237 ++ drivers/net/can/usb/etas_es58x/es58x_core.c | 2725 +++++++++++++++++++ drivers/net/can/usb/etas_es58x/es58x_core.h | 700 +++++ drivers/net/can/usb/etas_es58x/es58x_fd.c | 650 +++++ drivers/net/can/usb/etas_es58x/es58x_fd.h | 243 ++ drivers/usb/class/cdc-acm.c | 11 + include/linux/can/dev.h | 38 + 12 files changed, 5190 insertions(+), 14 deletions(-) create mode 100644 drivers/net/can/usb/etas_es58x/Makefile create mode 100644 drivers/net/can/usb/etas_es58x/es581_4.c create mode 100644 drivers/net/can/usb/etas_es58x/es581_4.h create mode 100644 drivers/net/can/usb/etas_es58x/es58x_core.c create mode 100644 drivers/net/can/usb/etas_es58x/es58x_core.h create mode 100644 drivers/net/can/usb/etas_es58x/es58x_fd.c create mode 100644 drivers/net/can/usb/etas_es58x/es58x_fd.h -- 2.26.2
