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70e939ddea
skb_get_dsfield(skb) gets dsfield from skb, or -1 if an error was found. This is basically a wrapper around ipv4_get_dsfield() and ipv6_get_dsfield(). Used by following patch for fq_codel. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Ingemar Johansson S <ingemar.s.johansson@ericsson.com> Cc: Tom Henderson <tomh@tomh.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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.