Add a depends on ZONE_DEVICE support or the s390-specific limited DAX support, as one of the two is required at runtime for fsdax code to actually work. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- fs/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/Kconfig b/fs/Kconfig index 05efea674bffa0..6e8818a5e53c45 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -48,6 +48,7 @@ config FS_DAX bool "File system based Direct Access (DAX) support" depends on MMU depends on !(ARM || MIPS || SPARC) + depends on ZONE_DEVICE || FS_DAX_LIMITED select FS_IOMAP select DAX help -- 2.30.2