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2338484d14
If the transfer had already started and there's no TRB to update, then there's no need to go through __dwc3_gadget_kick_transfer(). There is no problem reissuing UPDATE_TRANSFER command. This change just saves the driver from doing a few operations. This happens when we run out of TRB and function driver still queues for more requests. Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Signed-off-by: Felipe Balbi <balbi@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.