From ddcd6cd622889a2d74d0a16efae8e3b2d098f717 Mon Sep 17 00:00:00 2001
From: Carlos Santos <casantos@datacom.ind.br>
Date: Sun, 8 May 2016 11:11:39 -0300
Subject: [PATCH] Make FIT support really optional

Due to some mistakes in the source code, it was not possible to really
turn FIT support off. This commit fixes the problem by means of the
following changes:

- Enclose "bootm_host_load_image" and "bootm_host_load_images" between
  checks for CONFIG_FIT_SIGNATURE, in common/bootm.c.

- Enclose the declaration of "bootm_host_load_images" between checks for
  CONFIG_FIT_SIGNATURE, in common/bootm.h.

- Condition the compilation and linking of fit_common.o fit_image.o
  image-host.o common/image-fit.o to CONFIG_FIT=y, in tools/Makefile.

Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
---
 common/bootm.c  | 2 ++
 include/bootm.h | 2 ++
 tools/Makefile  | 6 ++----
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/common/bootm.c b/common/bootm.c
index c965326..ab477ba 100644
--- a/common/bootm.c
+++ b/common/bootm.c
@@ -891,6 +891,7 @@ void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
 	memmove(to, from, len);
 }
 
+#if defined(CONFIG_FIT_SIGNATURE)
 static int bootm_host_load_image(const void *fit, int req_image_type)
 {
 	const char *fit_uname_config = NULL;
@@ -955,5 +956,6 @@ int bootm_host_load_images(const void *fit, int cfg_noffset)
 	/* Return the first error we found */
 	return err;
 }
+#endif
 
 #endif /* ndef USE_HOSTCC */
diff --git a/include/bootm.h b/include/bootm.h
index 4981377..94d62a1 100644
--- a/include/bootm.h
+++ b/include/bootm.h
@@ -41,7 +41,9 @@ void lynxkdi_boot(image_header_t *hdr);
 
 boot_os_fn *bootm_os_get_boot_func(int os);
 
+#if defined(CONFIG_FIT_SIGNATURE)
 int bootm_host_load_images(const void *fit, int cfg_noffset);
+#endif
 
 int boot_selected_os(int argc, char * const argv[], int state,
 		     bootm_headers_t *images, boot_os_fn *boot_fn);
diff --git a/tools/Makefile b/tools/Makefile
index da50e1b..0a3d279 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -54,6 +54,7 @@ mkenvimage-objs := mkenvimage.o os_support.o lib/crc32.o
 hostprogs-y += dumpimage mkimage
 hostprogs-$(CONFIG_FIT_SIGNATURE) += fit_info fit_check_sign
 
+FIT_OBJS-$(CONFIG_FIT) := fit_common.o fit_image.o image-host.o common/image-fit.o
 FIT_SIG_OBJS-$(CONFIG_FIT_SIGNATURE) := common/image-sig.o
 # Flattened device tree objects
 LIBFDT_OBJS := $(addprefix lib/libfdt/, \
@@ -68,18 +69,15 @@ ROCKCHIP_OBS = lib/rc4.o rkcommon.o rkimage.o rksd.o rkspi.o
 # common objs for dumpimage and mkimage
 dumpimage-mkimage-objs := aisimage.o \
 			atmelimage.o \
+			$(FIT_OBJS-y) \
 			$(FIT_SIG_OBJS-y) \
 			common/bootm.o \
 			lib/crc32.o \
 			default_image.o \
 			lib/fdtdec_common.o \
 			lib/fdtdec.o \
-			fit_common.o \
-			fit_image.o \
 			gpimage.o \
 			gpimage-common.o \
-			common/image-fit.o \
-			image-host.o \
 			common/image.o \
 			imagetool.o \
 			imximage.o \
-- 
2.7.4