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2406ff9b86
For non-x86 architectures, SNDRV_DMA_TYPE_DEV_UC should be treated
equivalent with SNDRV_DMA_TYPE_DEV, where the default mmap handler
still checks only about SNDRV_DMA_TYPE_DEV. Make the check more
proper.
Note that all existing users of *_UC buffer types are x86-only, so
this doesn't fix any bug, but just for consistency.
Fixes: 42e748a0b3 ("ALSA: memalloc: Add non-cached buffer type")
Link: https://lore.kernel.org/r/20191108165626.5947-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.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.