# \[RFC PATCH\] drivers/dax: Allow to include DEV\_DAX\_PMEM as builtin

- From: Aneesh Kumar K.V \<hidden\>
- Date: 2019-03-30 05:42:18 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2019/03/6492113
- Thread: https://ratatoskr.run/linux-mm/2019/03/6492113/t.md

```text
This move the dependency to DEV_DAX_PMEM_COMPAT such that only
if DEV_DAX_PMEM is built as module we can allow the compat support.

This allows to test the new code easily in a emulation setup where we
often build things without module support.

Signed-off-by: Aneesh Kumar K.V <redacted>
---
 drivers/dax/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/dax/Kconfig b/drivers/dax/Kconfig
index 5ef624fe3934..e582e088b48c 100644
--- a/drivers/dax/Kconfig
+++ b/drivers/dax/Kconfig
@@ -23,7 +23,6 @@ config DEV_DAX
 config DEV_DAX_PMEM
 	tristate "PMEM DAX: direct access to persistent memory"
 	depends on LIBNVDIMM && NVDIMM_DAX && DEV_DAX
-	depends on m # until we can kill DEV_DAX_PMEM_COMPAT
 	default DEV_DAX
 	help
 	  Support raw access to persistent memory.  Note that this
@@ -50,7 +49,7 @@ config DEV_DAX_KMEM
 
 config DEV_DAX_PMEM_COMPAT
 	tristate "PMEM DAX: support the deprecated /sys/class/dax interface"
-	depends on DEV_DAX_PMEM
+	depends on DEV_DAX_PMEM=m
 	default DEV_DAX_PMEM
 	help
 	  Older versions of the libdaxctl library expect to find all
-- 
2.20.1

```