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[ Upstream commit90904d3262] When auto-restart is enabled, the kvaser_usb_leaf driver considers transition from any state >= CAN_STATE_BUS_OFF as a bus-off recovery event (restart). However, these events may occur at interface startup time before kvaser_usb_open() has set the state to CAN_STATE_ERROR_ACTIVE, causing restarts counter to increase and CAN_ERR_RESTARTED to be sent despite no actual restart having occurred. Fix that by making the auto-restart condition checks more strict so that they only trigger when the interface was actually in the BUS_OFF state. Fixes:080f40a6fa("can: kvaser_usb: Add support for Kvaser CAN/USB devices") Tested-by: Jimmy Assarsson <extja@kvaser.com> Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi> Signed-off-by: Jimmy Assarsson <extja@kvaser.com> Link: https://lore.kernel.org/all/20221010185237.319219-10-extja@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.