environment: Use accessor functions for default environment path

default_environment_path only exists when CONFIG_ENV_HANDLING is enabled.
Boards would have to #ifdef this if they wanted to use
default_environment_path. Use accessor functions instead which can
be ifdeffed on a single place.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 13 insertions, 1 deletions

diff --git a/include/envfs.h b/include/envfs.h
index e9372b3867..e847e4c8e3 100644
--- a/include/envfs.h
+++ b/include/envfs.h
@@ -94,7 +94,19 @@ int envfs_load(char *filename, char *dirname, unsigned flags);
 int envfs_save(char *filename, char *dirname);
 
 /* defaults to /dev/env0 */
-extern char *default_environment_path;
+#ifdef CONFIG_ENV_HANDLING
+void default_environment_path_set(char *path);
+char *default_environment_path_get(void);
+#else
+static inline void default_environment_path_set(char *path)
+{
+}
+
+static inline char *default_environment_path_get(void)
+{
+	return NULL;
+}
+#endif
 
 int envfs_register_partition(const char *devname, unsigned int partnr);