99326214f9
[ Upstream commit e61c451476e61450f6771ce03bbc01210a09be16 ] Add dma_release_coherent_memory to DMA API to allow dma user call it to release dev->dma_mem when the device is removed. Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com> Acked-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220422062436.14384-2-mark-pk.tsai@mediatek.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Stable-dep-of: b07bc2347672 ("dma-mapping: clear dev->dma_mem to NULL after freeing it") Signed-off-by: Sasha Levin <sashal@kernel.org>
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.