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[ Upstream commitecc7b4187d] Fabian Inostroza <fabianinostrozap@gmail.com> has discovered a potential problem in the hardware timestamp reporting from the PCAN-USB USB CAN interface (only), related to the fact that a timestamp of an event may precede the timestamp used for synchronization when both records are part of the same USB packet. However, this case was used to detect the wrapping of the time counter. This patch details and fixes the two identified cases where this problem can occur. Reported-by: Fabian Inostroza <fabianinostrozap@gmail.com> Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com> Link: https://lore.kernel.org/r/20201014085631.15128-1-s.grosjean@peak-system.com Fixes:bb4785551f("can: usb: PEAK-System Technik USB adapters driver core") 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.