Marc Kleine-Budde <mkl@pengutronix.de> says: Traditionally USB drivers used netif_rx to pass the received CAN frames/skbs to the network stack. In netif_rx() the skbs are queued to the local CPU. If IRQs are handled in round robin, CAN frames may be delivered out-of-order to user space. To support devices without timestamping the TX path of the rx-offload helper is cleaned up and extended: - rename rx_offload_get_echo_skb() -> can_rx_offload_get_echo_skb_queue_timestamp() - add can_rx_offload_get_echo_skb_queue_tail() The last patch converts the gs_usb driver to NAPI with the rx-offload helper. Link: https://lore.kernel.org/all/20230718-gs_usb-rx-offload-v2-0-716e542d14d5@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.
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