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25a4ce5649
Since both callers of dma_direct_optimal_gfp_mask() pass dev->coherent_dma_mask as the second argument, it is better to remove that parameter altogether. Not only is reducing number of parameters good for readability, but the new function signature is also more logical: The optimal flags depend only on data contained in struct device. While touching this code, let's also rename phys_mask to phys_limit in dma_direct_alloc_from_pool(), because it is indeed a limit. Signed-off-by: Petr Tesarik <petrtesarik@huaweicloud.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
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.