diff --git a/drivers/Kconfig b/drivers/Kconfig
index 3ced01b587..f3d2c871a7 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -3,6 +3,14 @@
 # see misc/tools/kconfig-language.txt.
 #
 
+config DISABLE_POLL
+	bool "Disable driver poll interfaces"
+	default n
+	---help---
+		The sizes of drivers can be reduced if the poll() method is not
+		supported.  If you do not use poll() or select(), then you can
+		select DISABLE_POLL to reduce the code footprint by a small amount.
+
 config DEV_NULL
 	bool "Enable /dev/null"
 	default y
diff --git a/drivers/loop.c b/drivers/loop.c
index b5b5d82d8a..4744ae0dd3 100644
--- a/drivers/loop.c
+++ b/drivers/loop.c
@@ -268,7 +268,7 @@ static ssize_t loop_write(FAR struct inode *inode, const unsigned char *buffer,
                         size_t start_sector, unsigned int nsectors)
 {
   FAR struct loop_struct_s *dev;
-  size_t nbyteswritten;
+  ssize_t nbyteswritten;
   off_t offset;
   int ret;
 
diff --git a/fs/Kconfig b/fs/Kconfig
index dfbfda3fa2..ab03a2b649 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -5,6 +5,10 @@
 
 comment "File system configuration"
 
+config DISABLE_MOUNTPOINT
+	bool "Disable support for mount points"
+	default n
+
 source fs/mmap/Kconfig
 source fs/fat/Kconfig
 source fs/nfs/Kconfig
diff --git a/sched/Kconfig b/sched/Kconfig
index fe9a880857..7ea3016009 100644
--- a/sched/Kconfig
+++ b/sched/Kconfig
@@ -379,21 +379,11 @@ config DISABLE_MQUEUE
 	depends on DISABLE_OS_API
 	default n
 
-config DISABLE_MOUNTPOINT
-	bool "Disable support for mount points"
-	depends on DISABLE_OS_API
-	default n
-
 config DISABLE_ENVIRON
 	bool "Disable environment variable support"
 	depends on DISABLE_OS_API
 	default n
 
-config DISABLE_POLL
-	bool "Disable driver poll interfaces"
-	depends on DISABLE_OS_API
-	default n
-
 if !DISABLE_SIGNALS
 comment "Signal Numbers"