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Members of nbu2ss_udc structure can change device state, maintain completion state and control driver. Also provide access to read and write to register. Hence, exclusive access to nbu2ss_udc is required. The lock variable of type spinlock_t guarantees the exclusive access and protects it. In this patch, comment is added for spinlock_t definition, to fix the following checkpatch issue: CHECK: spinlock_t definition without comment Signed-off-by: Varsha Rao <rvarsha016@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.