a25381aa3a
Factor out a new swiotlb_free_buffer helper that checks if an address is allocated from the swiotlb bounce buffer, and if yes frees it. This allows to simplify the swiotlb_free implemenation that uses dma_direct_free to free the non-bounce buffer allocations. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Christian König <christian.koenig@amd.com> |
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| kernel | ||
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README
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.