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DMA transactions should only only need to call io_config only once, but block mode might call it several times to setup several transactions so it can handle reads/writes larger than the max size per transaction, so we move the call to the do_ functions. This is just refactoring, there should be no functional change Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org> Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org> Signed-off-by: Mark Brown <broonie@kernel.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.