xen: change xen/[gntdev/gntalloc] to default m

When CONFIG_XEN is enabled the gntdev and gntalloc driver will be
compiled as a module by default.

[v2: Added the fix for the gntalloc driver as well]

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index a3d7afb86ae4b996a1f1599e0030ec3c03b21194..a59638b37c1add565887e30feba7aebc7c3b54be 100644 (file)
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -76,6 +76,7 @@ config XEN_XENBUS_FRONTEND
 config XEN_GNTDEV
        tristate "userspace grant access device driver"
        depends on XEN
+       default m
        select MMU_NOTIFIER
        help
          Allows userspace processes to use grants.
@@ -83,6 +84,7 @@ config XEN_GNTDEV
 config XEN_GRANT_DEV_ALLOC
        tristate "User-space grant reference allocator driver"
        depends on XEN
+       default m
        help
          Allows userspace processes to create pages with access granted
          to other domains. This can be used to implement frontend drivers