fs: delete unused Makefile

Implement "ls" and "fsload" commands that act like {fat,ext2}{ls,load},
and transparently handle either file-system. This scheme could easily be
extended to other filesystem types; I only didn't do it for zfs because
I don't have any filesystems of that type.

Signed-off-by Stephen Warren <[email protected]>

---
There are a couple FIXMEs in here:

1) In fs/fs.c, code is ifdef on CONFIG_CMD_FAT or CONFIG_CMD_EXT2. This
means that the new commands and code can only be enabled if the "legacy"
{fat,ext2}{ls,load} are enabled. What we really want is CONFIG_FS_FAT and
CONFIG_FS_EXT2 to enable the filesystem code, and then CONFIG_CMD_FAT,
CONFIG_CMD_EXT2, CONFIG_CMD_FS to only affect the command implementations.
However, that would require making every include/config/*.h that sets the
current defines also set more. I suppose that's a fairly mechanical change
though, so easy enough to implement. Does that seem like a reasonable approach to people?

2) In common/Makefile, I need to make this conditional upon CONFIG_CMD_FS
or similar.

Also, I wonder if the fs/* and common/* should be two separate patches or
not?

 Makefile        |    3 +-
 common/Makefile |    2 +
 common/cmd_fs.c |   86 ++++++++++++++++++++++
 fs/Makefile     |   47 ++++++++++++
 fs/fs.c         |  216
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 include/fs.h    |   49 +++++++++++++
 6 files changed, 402 insertions(+), 1 deletions(-)
 create mode 100644 common/cmd_fs.c
 create mode 100644 fs/Makefile
 create mode 100644 fs/fs.c
 create mode 100644 include/fs.h

Makefile +2 -1

index d7e2c2f..0b50eb7 100644
@@ -242,7 +242,8 @@ LIBS-y += drivers/net/npe/libnpe.o
 endif
 LIBS-$(CONFIG_OF_EMBED) += dts/libdts.o
 LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
-LIBS-y += fs/cramfs/libcramfs.o \
+LIBS-y += fs/libfs.o \
+	fs/cramfs/libcramfs.o \
 	fs/ext4/libext4fs.o \
 	fs/fat/libfat.o \
 	fs/fdos/libfdos.o \

common/Makefile +2 -0

index 125b2be..4f2d944 100644
@@ -103,6 +103,8 @@ COBJS-$(CONFIG_CMD_FLASH) += cmd_flash.o
 ifdef CONFIG_FPGA
 COBJS-$(CONFIG_CMD_FPGA) += cmd_fpga.o
 endif
+# FIXME: Need to make this conditional
+COBJS-y += cmd_fs.o
 COBJS-$(CONFIG_CMD_GPIO) += cmd_gpio.o
 COBJS-$(CONFIG_CMD_I2C) += cmd_i2c.o
 COBJS-$(CONFIG_CMD_IDE) += cmd_ide.o

common/cmd_fs.c new file +6 -0

new file mode 100644
index 0000000..948a5e0
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Inspired by cmd_ext_common.c, cmd_fat.c.
+ *
+ * This program is free software; you can redistribute it and/or

modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see
<http://www.gnu.org/licenses/>.
+ */

common/cmd_fs.c new file +6 -0

+
+#include <common.h>
+#include <command.h>
+#include <fs.h>
+
+int do_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char * const

argv[])

common/cmd_fs.c new file +29 -0

+
+	if (fs_set_blk_dev(argv[1], argv[2]))
+		return 1;
+
+	addr = simple_strtoul(argv[3], NULL, 0);
+	if (argc >= 6)
+		bytes = simple_strtoul(argv[5], NULL, 0);
+	else
+		bytes = 0;
+	if (argc >= 7)
+		pos = simple_strtoul(argv[6], NULL, 0);
+	else
+		pos = 0;
+
+	len_read = fs_read(argv[4], addr, pos, bytes);
+	if (len_read <= 0)
+		return 1;
+
+	sprintf(buf, "0x%x", (unsigned int)len_read);
+	setenv("filesize", buf);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	fsload,	7,	0,	do_fsload,
+	"load binary file from a filesystem",
+	"<interface> [<dev[:part]>] <addr> <filename> [bytes [pos]]\n"
+	"    - Load binary file 'filename' from partition 'part' on

device\n"

common/cmd_fs.c new file +1 -0

+	"       type 'interface' instance 'dev' to address 'addr' in

memory.\n"

common/cmd_fs.c new file +2 -0

+	"      'bytes' gives the size to load in bytes.\n"
+	"      If 'bytes' is 0 or omitted, the file is read until the

end.\n"

common/cmd_fs.c new file +14 -0

+	if (fs_set_blk_dev(argv[1], argv[2]))
+		return 1;
+
+	if (fs_ls(argc == 4 ? argv[3] : "/"))
+		return 1;
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	ls,	4,	1,	do_ls,
+	"list files in a directory (default /)",
+	"<interface> [<dev[:part]>] [directory]\n"
+	"    - List files in directory 'directory' of partition 'part'

on\n"

common/cmd_fs.c new file +2 -0

+	"      device type 'interface' instance 'dev'."
+);

fs/Makefile new file +47 -0

new file mode 100644
index 0000000..d0ab3ae
@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+# Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)libfs.o
+
+COBJS-y				+= fs.o
+
+COBJS	:= $(COBJS-y)
+SRCS	:= $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+
+all:	$(LIB)
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################

fs/fs.c new file +4 -0

new file mode 100644
index 0000000..ea77ac9
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or

modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see
<http://www.gnu.org/licenses/>.
+ */

fs/fs.c new file +5 -0

+
+#include <config.h>
+#include <common.h>
+#include <part.h>
+#include <ext4fs.h>

fs/fs.c new file +2 -0

+
+/* FIXME: CONFIG_CMD_FAT, CONFIG_CMD_EXT2 should be CONFIG_FS_FAT,

CONFIG_FS_EXT2 */

fs/fs.c new file +54 -0

+#ifdef CONFIG_CMD_FAT
+static int fs_probe_fat(void)
+{
+	return fat_set_blk_dev(fs_dev_desc, &fs_partition);
+}
+
+static void fs_close_fat(void)
+{
+}
+#else
+static inline int fs_probe_fat(void)
+{
+	return -1;
+}
+
+static inline void fs_close_fat(void)
+{
+}
+#endif
+
+#ifdef CONFIG_CMD_EXT2
+static int fs_probe_ext(void)
+{
+	ext4fs_set_blk_dev(fs_dev_desc, &fs_partition);
+
+	if (!ext4fs_mount(fs_partition.size)) {
+		ext4fs_close();
+		return -1;
+	}
+
+	return 0;
+}
+
+static void fs_close_ext(void)
+{
+	ext4fs_close();
+}
+#else
+static inline int fs_probe_ext(void)
+{
+	return -1;
+}
+
+static inline void fs_close_ext(void)
+{
+}
+#endif
+
+int fs_set_blk_dev(const char *ifname, const char *dev_part_str)
+{
+	int part;
+
+	switch (fs_type) {
+	case FS_TYPE_FAT:

fs/fs.c new file +51 -0

+
+	part = get_device_and_partition(ifname, dev_part_str, &fs_dev_desc,
+					&fs_partition, 1);
+	if (part < 0)
+		return -1;
+
+	if (!fs_probe_fat()) {
+		fs_type = FS_TYPE_FAT;
+		return 0;
+	}
+
+	if (!fs_probe_ext()) {
+		fs_type = FS_TYPE_EXT;
+		return 0;
+	}
+
+	printf("** Unrecognized filesystem type **\n");
+	return -1;
+}
+
+static inline int fs_ls_unsupported(const char *dirname)
+{
+	printf("** Unrecognized filesystem type **\n");
+	return -1;
+}
+
+#ifdef CONFIG_CMD_FAT
+#define fs_ls_fat file_fat_ls
+#else
+#define fs_ls_fat fs_ls_unsupported
+#endif
+
+#ifdef CONFIG_CMD_EXT2
+#define fs_ls_ext ext4fs_ls
+#else
+#define fs_ls_ext fs_ls_unsupported
+#endif
+
+int fs_ls(const char *dirname)
+{
+	switch (fs_type) {
+	case FS_TYPE_FAT:
+		return fs_ls_fat(dirname);
+	case FS_TYPE_EXT:
+		return fs_ls_ext(dirname);
+	default:
+		return fs_ls_unsupported(dirname);
+	}
+}
+
+static inline int fs_read_unsupported(const char *filename, ulong

addr, int offset, int len)

fs/fs.c new file +7 -0

+{
+	printf("** Unrecognized filesystem type **\n");
+	return -1;
+}
+
+#ifdef CONFIG_CMD_FAT
+static int fs_read_fat(const char *filename, ulong addr, int offset,

int len)

fs/fs.c new file +18 -0

+{
+	int len_read;
+
+	len_read = file_fat_read_at(filename, offset,
+				    (unsigned char *)addr, len);
+	if (len_read == -1) {
+		printf("** Unable to read file %s **\n", filename);
+		return -1;
+	}
+
+	return len_read;
+}
+#else
+#define fs_read_fat fs_read_unsupported
+#endif
+
+#ifdef CONFIG_CMD_EXT2
+static int fs_read_ext(const char *filename, ulong addr, int offset,

int len)

fs/fs.c new file +44 -0

+{
+	int file_len;
+	int len_read;
+
+	if (offset != 0) {
+		printf("** Cannot support non-zero offset **\n");
+		return -1;
+	}
+
+	file_len = ext4fs_open(filename);
+	if (file_len < 0) {
+		printf("** File not found %s **\n", filename);
+		ext4fs_close();
+		return -1;
+	}
+
+	if (len == 0)
+		len = file_len;
+
+	len_read = ext4fs_read((char *)addr, len);
+	ext4fs_close();
+
+	if (len_read != len) {
+		printf("** Unable to read file %s **\n", filename);
+		return -1;
+	}
+
+	return len_read;
+}
+#else
+#define fs_read_ext fs_read_unsupported
+#endif
+
+int fs_read(const char *filename, ulong addr, int offset, int len)
+{
+	switch (fs_type) {
+	case FS_TYPE_FAT:
+		return fs_read_fat(filename, addr, offset, len);
+	case FS_TYPE_EXT:
+		return fs_read_ext(filename, addr, offset, len);
+	default:
+		return fs_read_unsupported(filename, addr, offset, len);
+	}
+}

include/fs.h new file +4 -0

new file mode 100644
index 0000000..a0fda28
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or

modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see
<http://www.gnu.org/licenses/>.
+ */

include/fs.h new file +5 -0

+#ifndef _FS_H
+#define _FS_H
+
+/*
+ * Tell the fs layer which block device an partition to use for

future
+ * commands. This also internally identifies the filesystem that is present
+ * within the partition.
+ *
+ * Returns 0 on success.
+ * Returns non-zero if there is an error accessing the disk or partition, or
+ * no known filesystem type could be recognized on it.
+ */

include/fs.h new file +4 -0

+int fs_set_blk_dev(const char *ifname, const char *dev_part_str);
+
+/*
+ * Print the list of files on the partition previously set by

fs_set_blk_dev(),
+ * in directory "dirname".
+ *
+ * Returns 0 on success. Returns non-zero on error.
+ */

include/fs.h new file +4 -0

+int fs_ls(const char *dirname);
+
+/*
+ * Read file "filename" from the partition previously set by

fs_set_blk_dev(),
+ * to address "addr", starting at byte offset "offset", and reading "len"
+ * bytes. "offset" may be 0 to read from the start of the file. "len" may be
+ * 0 to read the entire file. Note that not all filesystem types support
+ * either/both offset!=0 or len!=0.
+ *
+ * Returns number of bytes read on success. Returns <= 0 on error.
+ */

From: Stephen Warren <[email protected]>

Implement "ls" and "fsload" commands that act like {fat,ext2}{ls,load}, and transparently handle either file-system. This scheme could easily be extended to other filesystem types; I only didn't do it for zfs because I don't have any filesystems of that type.

Signed-off-by Stephen Warren <[email protected]> --- There are a

couple FIXMEs in here:

1) In fs/fs.c, code is ifdef on CONFIG_CMD_FAT or CONFIG_CMD_EXT2. This means that the new commands and code can only be enabled if
the "legacy" {fat,ext2}{ls,load} are enabled. What we really want is CONFIG_FS_FAT and CONFIG_FS_EXT2 to enable the filesystem code,
and then CONFIG_CMD_FAT, CONFIG_CMD_EXT2, CONFIG_CMD_FS to only
affect the command implementations. However, that would require making every include/config/*.h that sets the current defines also
set more. I suppose that's a fairly mechanical change though, so
easy enough to implement. Does that seem like a reasonable approach to people?

2) In common/Makefile, I need to make this conditional upon CONFIG_CMD_FS or similar.

Also, I wonder if the fs/* and common/* should be two separate patches or not?

Quoted 11 lines · Stephen Warren

From: Stephen Warren <[email protected]>

Implement "ls" and "fsload" commands that act like {fat,ext2}{ls,load}, and transparently handle either file-system.
This scheme could easily be extended to other filesystem types;
I only didn't do it for zfs because I don't have any filesystems of that type.

Signed-off-by Stephen Warren <[email protected]> --- There are

a couple FIXMEs in here:

Quoted 10 lines

1) In fs/fs.c, code is ifdef on CONFIG_CMD_FAT or CONFIG_CMD_EXT2. This means that the new commands and code can only be enabled if the "legacy" {fat,ext2}{ls,load} are enabled. What we really want is CONFIG_FS_FAT and CONFIG_FS_EXT2 to enable the filesystem code, and then CONFIG_CMD_FAT, CONFIG_CMD_EXT2, CONFIG_CMD_FS to only affect the command implementations. However, that would require making every include/config/*.h that sets the current defines also set more. I suppose that's a fairly mechanical change though, so easy enough to implement. Does that seem like a reasonable approach to people?

How about a new CONFIG_CMD_GENERIC_FS for the new ls/fsload (and any later commands like write that get added) and once most filesystems are converted we can think about a transition plan?

Quoted 24 lines · Tom Rini

Quoted 11 lines · Stephen Warren

From: Stephen Warren <[email protected]>

Implement "ls" and "fsload" commands that act like {fat,ext2}{ls,load}, and transparently handle either file-system. This scheme could easily be extended to other filesystem types; I only didn't do it for zfs because I don't have any filesystems of that type.

Signed-off-by Stephen Warren <[email protected]> --- There

are a couple FIXMEs in here:

Quoted 11 lines

1) In fs/fs.c, code is ifdef on CONFIG_CMD_FAT or CONFIG_CMD_EXT2. This means that the new commands and code can only be enabled if the "legacy" {fat,ext2}{ls,load} are
enabled. What we really want is CONFIG_FS_FAT and CONFIG_FS_EXT2 to enable the filesystem code, and then CONFIG_CMD_FAT, CONFIG_CMD_EXT2, CONFIG_CMD_FS to only affect the command implementations. However, that would require making every include/config/*.h that sets the current defines also set more. I suppose that's a fairly mechanical change though, so easy enough to implement. Does that seem like a reasonable approach to people?

Quoted 3 lines

How about a new CONFIG_CMD_GENERIC_FS for the new ls/fsload (and
any later commands like write that get added) and once most
filesystems are converted we can think about a transition plan?

Certainly.

The issue is that the filesystem code itself is conditionally included based on CONFIG_CMD_FAT and CONFIG_CMD_EXT4. This would require that in order to use the new generic commands, you also had to support the old non-generic commands in order to get a linkable result. Perhaps that's fine for now, but by separating the existing CONFIG_CMD_FAT into two (CONFIG_CMD_FAT, CONFIG_FS_FAT), we could avoid that requirement. As Benoit mentioned, perhaps we could arrange that CONFIG_CMD_FAT selects CONFIG_FS_FAT somehow, although I haven't looked at U-Boot's configuration system to see if that's possible yet.

Quoted 31 lines · Stephen Warren

Quoted 24 lines · Tom Rini

Quoted 11 lines · Stephen Warren

From: Stephen Warren <[email protected]>

Implement "ls" and "fsload" commands that act like {fat,ext2}{ls,load}, and transparently handle either file-system. This scheme could easily be extended to other filesystem types; I only didn't do it for zfs because I don't have any filesystems of that type.

Signed-off-by Stephen Warren <[email protected]> --- There

are a couple FIXMEs in here:

Quoted 11 lines

1) In fs/fs.c, code is ifdef on CONFIG_CMD_FAT or CONFIG_CMD_EXT2. This means that the new commands and code can only be enabled if the "legacy" {fat,ext2}{ls,load} are
enabled. What we really want is CONFIG_FS_FAT and CONFIG_FS_EXT2 to enable the filesystem code, and then CONFIG_CMD_FAT, CONFIG_CMD_EXT2, CONFIG_CMD_FS to only affect the command implementations. However, that would require making every include/config/*.h that sets the current defines also set more. I suppose that's a fairly mechanical change though, so easy enough to implement. Does that seem like a reasonable approach to people?

Quoted 3 lines

How about a new CONFIG_CMD_GENERIC_FS for the new ls/fsload (and
any later commands like write that get added) and once most
filesystems are converted we can think about a transition plan?

Certainly.

Quoted 10 lines

The issue is that the filesystem code itself is conditionally included based on CONFIG_CMD_FAT and CONFIG_CMD_EXT4. This would require that in order to use the new generic commands, you also had to support the old non-generic commands in order to get a linkable result. Perhaps that's fine for now, but by separating the existing CONFIG_CMD_FAT into two (CONFIG_CMD_FAT, CONFIG_FS_FAT), we could avoid that requirement. As Benoit mentioned, perhaps we could arrange that CONFIG_CMD_FAT selects CONFIG_FS_FAT somehow, although I haven't looked at U-Boot's configuration system to see if that's possible yet.

Since we don't have Kconfig right now, it's not really easy to do that
kind of thing. I think once we have more filesystems converted we can
work out doing the mechanical separate of fs/ from common/ for fs code.

...snip...

 Makefile        |    3 +-
 common/Makefile |    2 +
 common/cmd_fs.c |   86 ++++++++++++++++++++++
 fs/Makefile     |   47 ++++++++++++
 fs/fs.c         |  216
+++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/fs.h    |  
49 +++++++++++++
 6 files changed, 402 insertions(+), 1 deletions(-)
 create mode 100644 common/cmd_fs.c
 create mode 100644 fs/Makefile
 create mode 100644 fs/fs.c
 create mode 100644 include/fs.h

Hi

Quoted 13 lines · On Wednesday 10 October 2012 18:05:07 Stephen Warren wrote:

...snip...

 Makefile        |    3 +-
 common/Makefile |    2 +
 common/cmd_fs.c |   86 ++++++++++++++++++++++
 fs/Makefile     |   47 ++++++++++++
 fs/fs.c         |  216
+++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/fs.h    |  
49 +++++++++++++
 6 files changed, 402 insertions(+), 1 deletions(-)
 create mode 100644 common/cmd_fs.c
 create mode 100644 fs/Makefile
 create mode 100644 fs/fs.c
 create mode 100644 include/fs.h

I dont see how this is a "partition switch library", when it doesnt deal with partitions at all. Care to explain? Or maybe call it "filesystem-auto detection" or something?

From: Stephen Warren <[email protected]>

fs/Makefile is unused. The top-level Makefile sets LIBS-y += fs/xxx and hence causes make to directly descend two directory levels into each individual filesystem, and it never descends into fs/ itself.

So, delete this useless file.

Signed-off-by Stephen Warren <[email protected]>

---
 fs/Makefile |   42 ------------------------------------------
 1 files changed, 0 insertions(+), 42 deletions(-)
 delete mode 100644 fs/Makefile

fs/Makefile deleted +0 -43

deleted file mode 100644
index 901e189..0000000
@@ -1,42 +0,0 @@
-#
-# (C) Copyright 2000-2006
-# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-#
-
-subdirs-$(CONFIG_CMD_CRAMFS) := cramfs
-subdirs-$(CONFIG_CMD_EXT4) += ext4
-ifndef CONFIG_CMD_EXT4
-subdirs-$(CONFIG_CMD_EXT2) += ext4
-endif
-subdirs-$(CONFIG_CMD_FAT) += fat
-subdirs-$(CONFIG_CMD_FDOS) += fdos
-subdirs-$(CONFIG_CMD_JFFS2) += jffs2
-subdirs-$(CONFIG_CMD_REISER) += reiserfs
-subdirs-$(CONFIG_YAFFS2) += yaffs2
-subdirs-$(CONFIG_CMD_UBIFS) += ubifs
-subdirs-$(CONFIG_CMD_ZFS) += zfs
-
-SUBDIRS        := $(subdirs-y)
-
-$(obj).depend all:
-       @for dir in $(SUBDIRS) ; do \
-               $(MAKE) -C $$dir $@ ; done
--

1.7.0.4

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