diff mbox series

[v15,4/9] udmabuf: add CONFIG_MMU dependency

Message ID 20240613214741.1029446-5-vivek.kasireddy@intel.com (mailing list archive)
State New, archived
Headers show
Series mm/gup: Introduce memfd_pin_folios() for pinning memfd folios | expand

Commit Message

Kasireddy, Vivek June 13, 2024, 9:42 p.m. UTC 
From: Arnd Bergmann <arnd@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 <arnd@arndb.de>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
---
 drivers/dma-buf/Kconfig | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

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.