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Marc Kleine-Budde
81d192c2ce
As Jacob noticed, the optimization introduced in387da6bc7a("can: c_can: cache frames to operate as a true FIFO") doesn't properly work on C_CAN, but on D_CAN IP cores. The exact reasons are still unknown. For now disable caching if CAN frames in the TX path for C_CAN cores. Fixes:387da6bc7a("can: c_can: cache frames to operate as a true FIFO") Link: https://lore.kernel.org/all/20220928083354.1062321-1-mkl@pengutronix.de Link: https://lore.kernel.org/all/15a8084b-9617-2da1-6704-d7e39d60643b@gmail.com Reported-by: Jacob Kroon <jacob.kroon@gmail.com> Tested-by: Jacob Kroon <jacob.kroon@gmail.com> Cc: stable@vger.kernel.org # v5.15 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.