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[ Upstream commitd4edb50688] Return NULL if we got unexpected value from skb_trim_rcsum() in hellcreek_rcv() Fixes:01ef09caad("net: dsa: Add tag handling for Hirschmann Hellcreek switches") Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de> Link: https://lore.kernel.org/r/20221201140032.26746-2-artem.chernyshev@red-soft.ru 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.