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e15e502710
These checks assume that the caller only returns NF_DROP without any errno embedded in the upper bits. This is fine right now, but followup patches will start to propagate such errors to allow kfree_skb_drop_reason() in the called functions, those would then indicate 'errno << 8 | NF_STOLEN'. To not break things we have to mask those parts out. Signed-off-by: Florian Westphal <fw@strlen.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.