[PATCH 1/3] magicvar: Use __UNIQUE_ID to generate name

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BAREBOX_MAGICVAR_NAME only exists to generate a unique identifier. We can
generate that using __UNIQUE_ID. With this we can convert users from
BAREBOX_MAGICVAR_NAME to the simpler BAREBOX_MAGICVAR macro.

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
 include/magicvar.h | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/include/magicvar.h b/include/magicvar.h
index 9fb89a84cc..bad9b0dee5 100644
--- a/include/magicvar.h
+++ b/include/magicvar.h
@@ -19,16 +19,18 @@ extern struct magicvar __barebox_magicvar_end;
 #endif
 
 #ifdef CONFIG_CMD_MAGICVAR
-#define BAREBOX_MAGICVAR_NAMED(_name, _varname, _description)			\
-extern const struct magicvar __barebox_magicvar_##_name;	\
-const struct magicvar __barebox_magicvar_##_name		\
+#define __BAREBOX_MAGICVAR_NAMED(_name, _varname, _description)			\
+static const struct magicvar _name							\
         __attribute__ ((unused,section (".barebox_magicvar_" __stringify(_name)))) = {	\
         .name	= #_varname,					\
 	.description = MAGICVAR_DESCRIPTION(_description),	\
 };
 
+#define BAREBOX_MAGICVAR_NAMED(_name, _varname, _description)			\
+	__BAREBOX_MAGICVAR_NAMED(__barebox_magicvar_##_name, _varname, _description)
+
 #define BAREBOX_MAGICVAR(_name, _description)			\
-	BAREBOX_MAGICVAR_NAMED(_name, _name, _description)
+	__BAREBOX_MAGICVAR_NAMED(__UNIQUE_ID(magicvar), _name, _description)
 #else
 #define BAREBOX_MAGICVAR_NAMED(_name, _varname, _description)
 #define BAREBOX_MAGICVAR(_name, _description)
-- 
2.28.0


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