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[ Upstream commit8a075464d1] The ocelot driver, when asked to timestamp all receiving packets, 1588 v1 or NTP, says "nah, here's 1588 v2 for you". According to this discussion: https://patchwork.kernel.org/project/netdevbpf/patch/20211104133204.19757-8-martin.kaistra@linutronix.de/#24577647 drivers that downgrade from a wider request to a narrower response (or even a response where the intersection with the request is empty) are buggy, and should return -ERANGE instead. This patch fixes that. Fixes:4e3b0468e6("net: mscc: PTP Hardware Clock (PHC) support") Suggested-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> 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.