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commit 58aec91efb93338d1cc7acc0a93242613a2a4e5f upstream. dma-direct.h is introduced in commitd4b6f1562a("LoongArch: Add Non-Uniform Memory Access (NUMA) support"). In commitc78c43fe7d("LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA"), ARCH_HAS_PHYS_TO_DMA was deselected and the coresponding phys_to_dma()/ dma_to_phys() functions were removed. However, the unused dma-direct.h was left behind, which is removed by this patch. Cc: <stable@vger.kernel.org> Fixes:c78c43fe7d("LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA") Signed-off-by: Miao Wang <shankerwangmiao@gmail.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.