[PATCH v2 2/3] fdt_region: move fdt_region.c to common/ from lib/libfdt/

[Masahiro Yamada <masahiroy@kernel.org>]

My goal is to sync lib/libfdt/ with scripts/dtc/libfdt/, that is,
make lib/libfdt/ contain only wrapper files.

fdt_region.c was written only for U-Boot to implement the verified
boot. So, this belongs to the same group as common/fdt_support.c,
which is a collection of U-Boot own fdt helpers.

Move lib/libfdt/fdt_region.c to common/fdt_region.c . This is
necessary only when CONFIG_(SPL_TPL_)_FIT_SIGNATURE is enabled.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

I am resending this after two years since v1.

My previous attempt sank by this comment:
http://patchwork.ozlabs.org/project/uboot/patch/1521623017-29312-5-git-send-email-yamada.masahiro at socionext.com/#1881196

Two years have passed, but I still do not see this file
in upstream DTC.


Changes in v2:
  - rebase

 common/Makefile                     |  1 +
 {lib/libfdt => common}/fdt_region.c |  0
 lib/libfdt/Makefile                 |  3 ---
 tools/Makefile                      | 12 ++++--------
 4 files changed, 5 insertions(+), 11 deletions(-)
 rename {lib/libfdt => common}/fdt_region.c (100%)

diff --git a/common/Makefile b/common/Makefile
index 702f2396cf..a3f3faf479 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -110,6 +110,7 @@ obj-y += image.o
 obj-$(CONFIG_ANDROID_AB) += android_ab.o
 obj-$(CONFIG_ANDROID_BOOT_IMAGE) += image-android.o image-android-dt.o
 obj-$(CONFIG_$(SPL_TPL_)OF_LIBFDT) += image-fdt.o
+obj-$(CONFIG_$(SPL_TPL_)FIT_SIGNATURE) += fdt_region.o
 obj-$(CONFIG_$(SPL_TPL_)FIT) += image-fit.o
 obj-$(CONFIG_$(SPL_)MULTI_DTB_FIT) += boot_fit.o common_fit.o
 obj-$(CONFIG_IMAGE_SIGN_INFO) += image-sig.o
diff --git a/lib/libfdt/fdt_region.c b/common/fdt_region.c
similarity index 100%
rename from lib/libfdt/fdt_region.c
rename to common/fdt_region.c
diff --git a/lib/libfdt/Makefile b/lib/libfdt/Makefile
index 878659f99e..1fe50ecbe5 100644
--- a/lib/libfdt/Makefile
+++ b/lib/libfdt/Makefile
@@ -15,8 +15,5 @@ obj-y += \
 
 obj-$(CONFIG_OF_LIBFDT_OVERLAY) += fdt_overlay.o
 
-# U-Boot own file
-obj-y += fdt_region.o
-
 ccflags-y := -I$(srctree)/scripts/dtc/libfdt \
 	-DFDT_ASSUME_MASK=$(CONFIG_$(SPL_TPL_)OF_LIBFDT_ASSUME_MASK)
diff --git a/tools/Makefile b/tools/Makefile
index bfdbb1339c..ee9077ca82 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -63,13 +63,8 @@ FIT_CIPHER_OBJS-$(CONFIG_FIT_CIPHER) := common/image-cipher.o
 
 # The following files are synced with upstream DTC.
 # Use synced versions from scripts/dtc/libfdt/.
-LIBFDT_SRCS_SYNCED := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c \
-		fdt_strerror.c fdt_empty_tree.c fdt_addresses.c fdt_overlay.c
-# Use U-Boot own versions from lib/libfdt/.
-LIBFDT_SRCS_UNSYNCED := fdt_region.c
-
-LIBFDT_OBJS := $(addprefix libfdt/, $(patsubst %.c, %.o, $(LIBFDT_SRCS_SYNCED))) \
-	       $(addprefix lib/libfdt/, $(patsubst %.c, %.o, $(LIBFDT_SRCS_UNSYNCED)))
+LIBFDT_OBJS := $(addprefix libfdt/, fdt.o fdt_ro.o fdt_wip.o fdt_sw.o fdt_rw.o \
+		fdt_strerror.o fdt_empty_tree.o fdt_addresses.o fdt_overlay.o)
 
 RSA_OBJS-$(CONFIG_FIT_SIGNATURE) := $(addprefix lib/rsa/, \
 					rsa-sign.o rsa-verify.o rsa-checksum.o \
@@ -86,6 +81,7 @@ dumpimage-mkimage-objs := aisimage.o \
 			$(FIT_OBJS-y) \
 			$(FIT_SIG_OBJS-y) \
 			$(FIT_CIPHER_OBJS-y) \
+			common/fdt_region.o \
 			common/bootm.o \
 			lib/crc32.o \
 			default_image.o \
@@ -210,7 +206,7 @@ hostprogs-$(CONFIG_STATIC_RELA) += relocate-rela
 hostprogs-$(CONFIG_RISCV) += prelink-riscv
 
 hostprogs-y += fdtgrep
-fdtgrep-objs += $(LIBFDT_OBJS) fdtgrep.o
+fdtgrep-objs += $(LIBFDT_OBJS) common/fdt_region.o fdtgrep.o
 
 ifneq ($(TOOLS_ONLY),y)
 hostprogs-y += spl_size_limit
-- 
2.25.1