3305f9a905
Guillaume Nault says: ==================== l2tp: rework pppol2tp ioctl handling The current ioctl() handling code can be simplified. It tests for non-relevant conditions and uselessly holds sockets. Once useless code is removed, it becomes even simpler to let pppol2tp_ioctl() handle commands directly, rather than dispatch them to pppol2tp_tunnel_ioctl() or pppol2tp_session_ioctl(). That is the approach taken by this series. Patch #1 and #2 define helper functions aimed at simplifying the rest of the patch set. Patch #3 drops useless tests in pppol2p_ioctl() and avoid holding a refcount on the socket. Patches #4, #5 and #6 are the core of the series. They let pppol2tp_ioctl() handle all ioctls and drop the tunnel and session specific functions. Then patch #6 brings a little bit of consolidation. Finally, patch #7 takes advantage of the simplified code to make pppol2tp sockets compatible with dev_ioctl(). Certainly not a killer feature, but it is trivial and it is always nice to see l2tp getting better integration with the rest of the stack. ==================== 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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.