[PATCH v16 4/9] udmabuf: add CONFIG_MMU dependency

[Vivek Kasireddy]

From: Arnd Bergmann <a...@arndb.de>

There is no !CONFIG_MMU version of vmf_insert_pfn():

arm-linux-gnueabi-ld: drivers/dma-buf/udmabuf.o: in function `udmabuf_vm_fault':
udmabuf.c:(.text+0xaa): undefined reference to `vmf_insert_pfn'

Fixes: d1d00dd1fd2f ("udmabuf: use vmf_insert_pfn and VM_PFNMAP for handling 
mmap")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
Acked-by: David Hildenbrand <da...@redhat.com>
Acked-by: Vivek Kasireddy <vivek.kasire...@intel.com>
---
 drivers/dma-buf/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig
index e4dc53a36428..b46eb8a552d7 100644
--- a/drivers/dma-buf/Kconfig
+++ b/drivers/dma-buf/Kconfig
@@ -35,6 +35,7 @@ config UDMABUF
        default n
        depends on DMA_SHARED_BUFFER
        depends on MEMFD_CREATE || COMPILE_TEST
+       depends on MMU
        help
          A driver to let userspace turn memfd regions into dma-bufs.
          Qemu can use this to create host dmabufs for guest framebuffers.
-- 
2.45.1