udmabuf builds without it, but if userspace can not create memfd handles in the first place it is rather pointless to include it, except for test builds.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com Acked-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/dma-buf/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig index 338129eb12..2e5a0faa2c 100644 --- a/drivers/dma-buf/Kconfig +++ b/drivers/dma-buf/Kconfig @@ -34,6 +34,7 @@ config UDMABUF bool "userspace dmabuf misc driver" default n depends on DMA_SHARED_BUFFER + depends on MEMFD_CREATE || COMPILE_TEST help A driver to let userspace turn memfd regions into dma-bufs. Qemu can use this to create host dmabufs for guest framebuffers.