Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=master 2026-06-10T06:17:00+00:00 2026-06-10T06:17:00+00:00 Nathan Chancellor nathan@kernel.org 2026-06-04T22:57:15+00:00 urn:sha1:8cb2c9285e4ce9154f45fb15633ebd45dfd8d9cf When compile testing the UAPI headers with clang, there is an warning turned error for using a C++ style ('//') comment, which is explicitly forbidden for UAPI headers. In file included from <built-in>:1: ./usr/include/linux/virtio_can.h:29:35: error: // comments are not allowed in this language [-Werror,-Wcomment] 29 | #define VIRTIO_CAN_MAX_DLEN 64 // this is like CANFD_MAX_DLEN | ^ 1 error generated. Switch to a standard C style comment. Fixes: 2b6b4bb7d96f ("can: virtio: Add virtio CAN driver") Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-ID: <20260604-virtio_can-fix-uapi-comment-v1-1-199fa96ec5f0@kernel.org> 2026-06-10T06:17:00+00:00 Matias Ezequiel Vara Larsen mvaralar@redhat.com 2026-05-26T16:42:23+00:00 urn:sha1:083082a4e6d8311c91ac7e1d59426514c5e1c04b Add virtio CAN driver based on Virtio 1.4 specification (see https://github.com/oasis-tcs/virtio-spec/tree/virtio-1.4). The driver implements a complete CAN bus interface over Virtio transport, supporting both CAN Classic and CAN-FD Ids. In term of frames, it supports classic and CAN FD. RTR frames are only supported with classic CAN. Usage: - "ip link set up can0" - start controller - "ip link set down can0" - stop controller - "candump can0" - receive frames - "cansend can0 123#DEADBEEF" - send frames Signed-off-by: Harald Mommer <harald.mommer@oss.qualcomm.com> Co-developed-by: Harald Mommer <harald.mommer@oss.qualcomm.com> Signed-off-by: Mikhail Golubev-Ciuchea <mikhail.golubev-ciuchea@oss.qualcomm.com> Co-developed-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Cc: Damir Shaikhutdinov <Damir.Shaikhutdinov@opensynergy.com> Reviewed-by: Francesco Valla <francesco@valla.it> Tested-by: Francesco Valla <francesco@valla.it> Signed-off-by: Matias Ezequiel Vara Larsen <mvaralar@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-ID: <ahXNb+KzuHYbS24+@fedora>