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c08004eede4b2d8a42a9a14ee50904f47cb239a1
dma_alloc_coherent is an opaque allocator that only uses the GFP_ flags for allocation context control. Don't pass __GFP_COMP which makes no sense for an allocation that can't in any way be converted to a page pointer. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Wenjia Zhang <wenjia@linux.ibm.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.
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