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Vincent Mailhol says: ==================== can: error: set of fixes and improvement on txerr and rxerr reporting This series is a collection of patches targeting the CAN error counter. The series is split in three blocks (with small relation to each other). Several drivers uses the data[6] and data[7] fields (both of type u8) of the CAN error frame to report those values. However, the maximum size an u8 can hold is 255 and the error counter can exceed this value if bus-off status occurs. As such, the first nine patches of this series make sure that no drivers try to report txerr or rxerr through the CAN error frame when bus-off status is reached. can_frame::data[5..7] are defined as being "controller specific". Controller specific behaviors are not something desirable (portability issue...) The tenth patch of this series specifies how can_frame::data[5..7] should be use and remove any "controller specific" freedom. The eleventh patch adds a flag to notify though can_frame::can_id that data[6..7] were populated (in order to be consistent with other fields). Finally, the twelfth and last patch add three macro values to specify the different error counter threshold with so far was hard-coded as magic numbers in the drivers. N.B.: * patches 1 to 10 are for net (stable). * patches 11 and 12 are for net-next (but depends on patches 1 to 10). ** Changelog ** v1 -> v2: https://lore.kernel.org/all/20220712153157.83847-1-mailhol.vincent@wanadoo.fr * Fix typo in patch #10: data[7] of CAN error frames is for the RX error counter, not the TX one (this is litteraly a one byte change). ==================== As discussed take the whole series via can-next -> net-next. Link: https://lore.kernel.org/all/20220719143550.3681-1-mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
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| Makefile | ||
| README | ||
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.