Re: [OE-core] [PATCH v2] u-dma-buf: new recipe at version 5.5.0

["Mathieu Dubois-Briand" <mathieu.dubois-briand@bootlin.com>]

On Sat Jun 20, 2026 at 1:15 PM CEST, Jan Vermaete via lists.openembedded.org wrote:
> Add a Yocto recipe for u-dma-buf, an out-of-tree driver that
> provides userspace-mappable contiguous DMA buffers for FPGA
> and other DMA-capable devices.
>
> Signed-off-by: Gerbrand De Laender <gdelaende@gmail.com>
> Signed-off-by: Jan Vermaete <jan.vermaete@gmail.com>
> ---
>  .../u-dma-buf/u-dma-buf_5.5.0.bb              | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
>  create mode 100644 meta/recipes-kernel/u-dma-buf/u-dma-buf_5.5.0.bb
>
> diff --git a/meta/recipes-kernel/u-dma-buf/u-dma-buf_5.5.0.bb b/meta/recipes-kernel/u-dma-buf/u-dma-buf_5.5.0.bb
> new file mode 100644
> index 0000000000..6dea825b31
> --- /dev/null
> +++ b/meta/recipes-kernel/u-dma-buf/u-dma-buf_5.5.0.bb
> @@ -0,0 +1,25 @@
> +SUMMARY = "u-dma-buf: User-space mappable DMA buffer (CMA-backed)"
> +DESCRIPTION = "\
> +    u-dma-buf is a Linux device driver that allocates contiguous memory blocks in the kernel space as DMA buffers \
> +    and makes them available from the user space. It is intended that these memory blocks are used as DMA buffers \
> +    when a user application implements device driver in user space using UIO (User space I/O). \
> +    \
> +    A DMA buffer allocated by u-dma-buf can be accessed from the user space by opening the device file (e.g. /dev/udmabuf0) \
> +    and mapping to the user memory space, or using the read()/write() functions. \
> +"
> +
> +HOMEPAGE = "https://github.com/ikwzm/udmabuf"
> +LICENSE = "BSD-2-Clause"
> +LIC_FILES_CHKSUM = "file://LICENSE;md5=bebf0492502927bef0741aa04d1f35f5"
> +
> +PV = "5.5.0"
> +
> +SRC_URI = "git://github.com/ikwzm/udmabuf.git;protocol=https;branch=master"
> +
> +SRCREV = "15bcde3cb960321e99983e227aeacc5807888333"
> +
> +COMPATIBLE_HOST = '(arm|aarch64).*-linux'
> +
> +inherit module
> +
> +RPROVIDES:${PN} += "kernel-module-u-dma-buf"

Hi,

In addition to Alex message, please add a maintainer entry in
meta/conf/distro/include/maintainers.inc if this recipe is indeed added.

Thanks,
Mathieu

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com