aa3f5d935c
at91_poll_err() allocates a can error SKB, to inform the user space about the CAN error. Then it fills the SKB with information the error information and increases the net device error stats. In case no SBK can be allocated (e.g. due to an OOM) or the NAPI quota is 0 the function is left early and no stats are updated. This is not helpful to the user, as there is no information about the faulty CAN bus. Increase the error stats even if no quota is left or no SKB can be allocated. While there treat No-Acknowledgment as a bus error, too. Link: https://lore.kernel.org/all/20231005-at91_can-rx_offload-v2-18-9987d53600e0@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.