diff --git a/fs/Makefile b/fs/Makefile
index ee01a7d..34dc035 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -11,15 +11,15 @@
 else
 obj-y				+= fs.o
 
-obj-y += cbfs/
-obj-y += cramfs/
-obj-y += ext4/
+obj-$(CONFIG_CMD_CBFS) += cbfs/
+obj-$(CONFIG_CMD_CRAMFS) += cramfs/
+obj-$(CONFIG_FS_EXT4) += ext4/
 obj-y += fat/
-obj-y += fdos/
-obj-y += jffs2/
-obj-y += reiserfs/
-obj-y += sandbox/
-obj-y += ubifs/
-obj-y += yaffs2/
-obj-y += zfs/
+obj-$(CONFIG_CMD_FDOS) += fdos/
+obj-$(CONFIG_CMD_JFFS2) += jffs2/
+obj-$(CONFIG_CMD_REISER) += reiserfs/
+obj-$(CONFIG_SANDBOX) += sandbox/
+obj-$(CONFIG_CMD_UBIFS) += ubifs/
+obj-$(CONFIG_YAFFS2) += yaffs2/
+obj-$(CONFIG_CMD_ZFS) += zfs/
 endif
diff --git a/fs/cbfs/Makefile b/fs/cbfs/Makefile
index 6f33d28..a106e05 100644
--- a/fs/cbfs/Makefile
+++ b/fs/cbfs/Makefile
@@ -3,4 +3,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_CMD_CBFS)	:= cbfs.o
+obj-y	:= cbfs.o
diff --git a/fs/cramfs/Makefile b/fs/cramfs/Makefile
index e2b2c73..12d73a3 100644
--- a/fs/cramfs/Makefile
+++ b/fs/cramfs/Makefile
@@ -5,5 +5,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_CMD_CRAMFS) := cramfs.o
-obj-$(CONFIG_CMD_CRAMFS) += uncompress.o
+obj-y := cramfs.o
+obj-y += uncompress.o
diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile
index 0f5d399..8d15bda 100644
--- a/fs/ext4/Makefile
+++ b/fs/ext4/Makefile
@@ -9,5 +9,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_FS_EXT4) := ext4fs.o ext4_common.o dev.o
+obj-y := ext4fs.o ext4_common.o dev.o
 obj-$(CONFIG_EXT4_WRITE) += ext4_write.o ext4_journal.o crc16.o
diff --git a/fs/fdos/Makefile b/fs/fdos/Makefile
index 95480af..2f8b5ad 100644
--- a/fs/fdos/Makefile
+++ b/fs/fdos/Makefile
@@ -10,4 +10,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_CMD_FDOS) := fat.o vfat.o dev.o fdos.o fs.o subdir.o
+obj-y := fat.o vfat.o dev.o fdos.o fs.o subdir.o
diff --git a/fs/jffs2/Makefile b/fs/jffs2/Makefile
index 02e481f..4cb0600 100644
--- a/fs/jffs2/Makefile
+++ b/fs/jffs2/Makefile
@@ -5,11 +5,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifdef CONFIG_CMD_JFFS2
 obj-$(CONFIG_JFFS2_LZO) += compr_lzo.o
 obj-y += compr_rtime.o
 obj-y += compr_rubin.o
 obj-y += compr_zlib.o
 obj-y += jffs2_1pass.o
 obj-y += mini_inflate.o
-endif
diff --git a/fs/reiserfs/Makefile b/fs/reiserfs/Makefile
index 55f70b1..5a692f0 100644
--- a/fs/reiserfs/Makefile
+++ b/fs/reiserfs/Makefile
@@ -9,4 +9,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_CMD_REISER) := reiserfs.o dev.o mode_string.o
+obj-y := reiserfs.o dev.o mode_string.o
diff --git a/fs/sandbox/Makefile b/fs/sandbox/Makefile
index faa7c16..ca238f6 100644
--- a/fs/sandbox/Makefile
+++ b/fs/sandbox/Makefile
@@ -10,4 +10,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_SANDBOX) := sandboxfs.o
+obj-y := sandboxfs.o
diff --git a/fs/ubifs/Makefile b/fs/ubifs/Makefile
index 47d5a8f..389b0e3 100644
--- a/fs/ubifs/Makefile
+++ b/fs/ubifs/Makefile
@@ -9,10 +9,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_CMD_UBIFS) := ubifs.o io.o super.o sb.o master.o lpt.o
-obj-$(CONFIG_CMD_UBIFS) += lpt_commit.o scan.o lprops.o
-obj-$(CONFIG_CMD_UBIFS) += tnc.o tnc_misc.o debug.o crc16.o budget.o
-obj-$(CONFIG_CMD_UBIFS) += log.o orphan.o recovery.o replay.o
+obj-y := ubifs.o io.o super.o sb.o master.o lpt.o
+obj-y += lpt_commit.o scan.o lprops.o
+obj-y += tnc.o tnc_misc.o debug.o crc16.o budget.o
+obj-y += log.o orphan.o recovery.o replay.o
 
 # SEE README.arm-unaligned-accesses
 $(obj)super.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
diff --git a/fs/yaffs2/Makefile b/fs/yaffs2/Makefile
index 077af78..d811287 100644
--- a/fs/yaffs2/Makefile
+++ b/fs/yaffs2/Makefile
@@ -16,7 +16,7 @@
 #
 # $Id: Makefile,v 1.15 2007/07/18 19:40:38 charles Exp $
 
-obj-$(CONFIG_YAFFS2) := \
+obj-y := \
 	yaffs_allocator.o yaffs_attribs.o yaffs_bitmap.o yaffs_uboot_glue.o\
 	yaffs_checkptrw.o yaffs_ecc.o yaffs_error.o \
 	yaffsfs.o yaffs_guts.o yaffs_nameval.o yaffs_nand.o\
diff --git a/fs/zfs/Makefile b/fs/zfs/Makefile
index 7090416..fa58b7f 100644
--- a/fs/zfs/Makefile
+++ b/fs/zfs/Makefile
@@ -5,4 +5,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_CMD_ZFS) := dev.o zfs.o zfs_fletcher.o zfs_sha256.o zfs_lzjb.o
+obj-y := dev.o zfs.o zfs_fletcher.o zfs_sha256.o zfs_lzjb.o