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If NO_DMA=y:
warning: (TOUCHSCREEN_SUR40 && VIDEO_TW68 && VIDEO_CX23885 && VIDEO_CX25821 && VIDEO_CX88 && VIDEO_SAA7134 && VIDEO_COBALT && VIDEO_QCOM_CAMSS) selects VIDEOBUF2_DMA_SG which has unmet direct dependencies (MEDIA_SUPPORT && HAS_DMA)
and
ERROR: "bad_dma_ops" [drivers/media/v4l2-core/videobuf2-dma-sg.ko] undefined!
ERROR: "bad_dma_ops" [drivers/media/platform/qcom/camss-8x16/qcom-camss.ko] undefined!
VIDEO_QCOM_CAMSS selects VIDEOBUF2_DMA_SG, which bypasses its dependency
on HAS_DMA. Make VIDEO_QCOM_CAMSS depend on HAS_DMA to fix this.
Fixes: f5c074947f ("media: camss: Enable building")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.