fs: descend into sub directories when it is necessary

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

fs/Makefile

@@ -11,15 +11,15 @@ obj-$(CONFIG_SPL_FAT_SUPPORT) += fat/
 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

fs/cbfs/Makefile

@@ -3,4 +3,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_CMD_CBFS)	:= cbfs.o
+obj-y	:= cbfs.o

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

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

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

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

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

fs/sandbox/Makefile

@@ -10,4 +10,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_SANDBOX) := sandboxfs.o
+obj-y := sandboxfs.o

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)

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\

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