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We have expected busses to set up a coherent mask to properly use the common dma mapping code for a long time, and now that I've added a warning macio turned out to not set one up yet. This sets it to the same value as the dma_mask, which seems to be what the drivers expect. Reported-by: Mathieu Malaterre <malat@debian.org> Tested-by: Mathieu Malaterre <malat@debian.org> Reported-by: Meelis Roos <mroos@linux.ee> Tested-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Christoph Hellwig <hch@lst.de>
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.