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> Reviewed-by: Logan Gunthorpe <logang@xxxxxxxxxxxx> Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> --- fs/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/Kconfig b/fs/Kconfig index e9433bbc48010a..7f2455e8e18ae2 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
