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the volatile fields of bcm2835_alsa_stream - control and status are not used. $ grep bcm2835_alsa_stream >From the above command all instances we see that all variables of 'bcm2835_alsa_stream' are declared as 'alsa_stream' So search for 'control' wherever we have 'alsa_stream' $ grep -l 'alsa_stream' | xargs grep "control" The above command returns where we don't any usage of 'control' field. which means that there is no usage of these fields. similarly for 'status' we see no usages. Signed-off-by: Keerthi Reddy <keerthigd4990@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.