Hi, is there any chance to get this patch https://lore.kernel.org/linux-can/20211201220328.3079270-1-stefan.maetje@xxxxxx/ in the upcoming 5.17 release? The patch still applies cleanly to linux-can-next "testing" at this tag: https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git/tag/?h=linux-can-next-for-5.17-20220105 If it helps I would provide a patch v7 that is rebased to the mentioned tag. Any comment is appreciated. Best regards, Stefan Mätje Am Mittwoch, den 01.12.2021, 22:09 +0000 schrieb Stefan Mätje: > Hi, > > this is really patch v6. Missed to change the email subject. My bad. > > Best regards, > Stefan Mätje > > Am Mittwoch, den 01.12.2021, 23:03 +0100 schrieb Stefan Mätje: > > The purpose of this patch is to introduce a new CAN driver to support > > the esd GmbH 402 family of CAN interface boards. The hardware design > > is based on a CAN controller implemented in a FPGA attached to a > > PCIe link. > > > > More information on these boards can be found following the links > > included in the commit message. > > > > This patch supports all boards but will operate the CAN-FD capable > > boards only in Classic-CAN mode. The CAN-FD support will be added > > when the initial patch has stabilized. > > > > The patch is reuses the previous work of my former colleague: > > Link: > > https://lore.kernel.org/linux-can/1426592308-23817-1-git-send-email-thomas.koerper@xxxxxx/ > > > > *Note*: scripts/checkpatch.pl still emits the following warnings: > > - esd_402_pci-core.c:270: Possible unnecessary 'out of memory' message > > This error message is there to tell the user that the DMA allocation > > failed and not an allocation for normal kernel memory. > > - esdacc.h:255: The irq_cnt pointer is still declared volatile and > > this has a reason and is explained in detail in the header > > referencing the exception noted in volatile-considered-harmful.rst. > > > > The patch is based on the linux-can-next testing branch. > > > > Changes in v6: > > - Fixed the statistic handling of RX overrun errors and increase > > net_device_stats::rx_errors instead of net_device_stats::rx_dropped. > > - Added a patch to not increase rx statistics when generating a CAN > > rx error message frame as suggested on the linux-can list. > > - Added a patch to not not increase rx_bytes statistics for RTR frames > > as suggested on the linux-can list. > > > > The last two patches change the statistics handling from the previous > > style used in other drivers to the newly suggested one. > >
