[PATCH v2 33/35] global_data: Remove environment members if not used

[Simon Glass]

If the environment is not enabled we don't need these fields in
global_data. Make them conditional.

Make these fields conditional. Move env_buf up one so it can share
an #ifdef.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v1)

 common/hwconfig.c                 |  8 +++++++-
 include/asm-generic/global_data.h | 12 ++++++++----
 lib/asm-offsets.c                 |  2 ++
 3 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/common/hwconfig.c b/common/hwconfig.c
index afaa6cb37ab..25a8cd5bf5d 100644
--- a/common/hwconfig.c
+++ b/common/hwconfig.c
@@ -77,7 +77,13 @@ static const char *__hwconfig(const char *opt, size_t *arglen,
 
 	/* if we are passed a buffer use it, otherwise try the environment */
 	if (!env_hwconfig) {
-		if (!(gd->flags & GD_FLG_ENV_READY) && gd->env_valid != ENV_VALID) {
+#if CONFIG_IS_ENABLED(ENV_SUPPORT)
+		if (!(gd->flags & GD_FLG_ENV_READY) &&
+		    gd->env_valid != ENV_VALID)
+#else
+		if (true)
+#endif
+		{
 			printf("WARNING: Calling __hwconfig without a buffer "
 					"and before environment is ready\n");
 			return NULL;
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h
index bd1069f572c..a05b939c007 100644
--- a/include/asm-generic/global_data.h
+++ b/include/asm-generic/global_data.h
@@ -86,6 +86,7 @@ struct global_data {
 	 * @cpu_clk: CPU clock rate in Hz
 	 */
 	unsigned long cpu_clk;
+#if CONFIG_IS_ENABLED(ENV_SUPPORT)
 	/**
 	 * @env_addr: address of environment structure
 	 *
@@ -93,6 +94,7 @@ struct global_data {
 	 * environment variables.
 	 */
 	unsigned long env_addr;
+#endif /* ENV_SUPPORT */
 	/**
 	 * @ram_base: base address of RAM used by U-Boot
 	 */
@@ -134,6 +136,7 @@ struct global_data {
 	 * @baudrate: baud rate of the serial interface
 	 */
 	unsigned int baudrate;
+#if CONFIG_IS_ENABLED(ENV_SUPPORT)
 	/**
 	 * @env_has_init: bit mask indicating environment locations
 	 *
@@ -150,14 +153,15 @@ struct global_data {
 	 * @env_load_prio: priority of the loaded environment
 	 */
 	char env_load_prio;
-	/**
-	 * @fdt_src: Source of FDT
-	 */
-	enum fdt_source_t fdt_src;
 	/**
 	 * @env_buf: buffer for env_get() before reloc
 	 */
 	char env_buf[32];
+#endif /* ENV_SUPPORT */
+	/**
+	 * @fdt_src: Source of FDT
+	 */
+	enum fdt_source_t fdt_src;
 	/**
 	 * @arch: architecture-specific data
 	 */
diff --git a/lib/asm-offsets.c b/lib/asm-offsets.c
index 4e2dbda9a71..b6bbcbf76ca 100644
--- a/lib/asm-offsets.c
+++ b/lib/asm-offsets.c
@@ -44,7 +44,9 @@ int main(void)
 
 	DEFINE(GD_NEW_GD, offsetof(struct global_data, new_gd));
 
+#if CONFIG_IS_ENABLED(ENV_SUPPORT)
 	DEFINE(GD_ENV_ADDR, offsetof(struct global_data, env_addr));
+#endif
 
 	return 0;
 }
-- 
2.34.1