893b838e73
Create a new function that does most of the work of starting a channel. What's different is that it takes a flag indicating whether the channel should really be started or not. Create another new function __gsi_channel_stop() that behaves similarly. IPA v3.5.1 implements suspend using a special SUSPEND endpoint setting. If the endpoint is suspended when an I/O completes on the underlying GSI channel, a SUSPEND interrupt is generated. Newer versions of IPA do not implement the SUSPEND endpoint mode. Instead, endpoint suspend is implemented by simply stopping the underlying GSI channel. In this case, a completing I/O on a *stopped* channel causes the SUSPEND interrupt condition. These new functions put all activity related to starting or stopping a channel (including "thawing/freezing" the channel) in one place, whether or not the channel is actually started or stopped. Signed-off-by: Alex Elder <elder@linaro.org> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Jakub Kicinski <kuba@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.