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No completion interrupts will occur while an endpoint is suspended, nor when a channel has been stopped for suspend. So there's no need to disable the interrupt during suspend and re-enable it when resuming. Without any interrupts occurring, there is no need to disable/re-enable NAPI for channel suspend/resume either. We'll only enable NAPI and the interrupt when we first start the channel, and disable it again only when it's "really" stopped. To accomplish this, move the enable/disable calls out of __gsi_channel_start() and __gsi_channel_stop(), and into gsi_channel_start() and gsi_channel_stop() instead. Add a call to napi_synchronize() to gsi_channel_suspend(), to ensure NAPI polling is done before moving on. 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.