samples: mbochs: add DMA_SHARED_BUFFER dependency

The new bochs vbe sample fails to link when DMA_SHARED_BUFFER is disabled: ERROR: "dma_buf_export" [samples/vfio-mdev/mbochs.ko] undefined! ERROR: "dma_buf_fd" [samples/vfio-mdev/mbochs.ko] undefined! This uses a 'select' statement to enable that framework, like all other users do. Fixes: a5e6e65 ("sample: vfio bochs vbe display (host device for bochs-drm)") Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Alex Williamson <[email protected]>
XGWang0 · Jun 9, 2018 · c1abca9 · c1abca9
1 parent 415eb9f
commit c1abca9
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/samples/Kconfig b/samples/Kconfig
@@ -135,6 +135,7 @@ config SAMPLE_VFIO_MDEV_MDPY_FB
 config SAMPLE_VFIO_MDEV_MBOCHS
 	tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
 	depends on VFIO_MDEV_DEVICE && m
+	select DMA_SHARED_BUFFER
 	help
 	  Build a virtual display sample driver for use as a VFIO
 	  mediated device.  It supports the region display interface