| From: Arnd Bergmann <arnd@arndb.de> |
| Subject: udmabuf: add CONFIG_MMU dependency |
| Date: Sun, 23 Jun 2024 23:36:12 -0700 |
| |
| 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' |
| |
| Link: https://lkml.kernel.org/r/20240624063952.1572359-5-vivek.kasireddy@intel.com |
| Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
| Acked-by: David Hildenbrand <david@redhat.com> |
| Acked-by: Vivek Kasireddy <vivek.kasireddy@intel.com> |
| Cc: Christoph Hellwig <hch@infradead.org> |
| Cc: Christoph Hellwig <hch@lst.de> |
| Cc: Daniel Vetter <daniel.vetter@ffwll.ch> |
| Cc: Dave Airlie <airlied@redhat.com> |
| Cc: Dongwon Kim <dongwon.kim@intel.com> |
| Cc: Gerd Hoffmann <kraxel@redhat.com> |
| Cc: Hugh Dickins <hughd@google.com> |
| Cc: Jason Gunthorpe <jgg@nvidia.com> |
| Cc: Junxiao Chang <junxiao.chang@intel.com> |
| Cc: Matthew Wilcox (Oracle) <willy@infradead.org> |
| Cc: Mike Kravetz <mike.kravetz@oracle.com> |
| Cc: Oscar Salvador <osalvador@suse.de> |
| Cc: Peter Xu <peterx@redhat.com> |
| Cc: Shuah Khan <shuah@kernel.org> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| drivers/dma-buf/Kconfig | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- a/drivers/dma-buf/Kconfig~udmabuf-add-config_mmu-dependency |
| +++ a/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. |
| _ |
