[PATCH v2 -next 11/14] of: earlycon: Allow multiple OF_EARLYCON_DECLARE() with same name

[Peter Hurley]

Since matching is performed only on the compatible string, allow
multiple declarations of OF_EARLYCON_DECLARE() with the same name.
For example,
    OF_EARLYCON_DECLARE(omap8250, "ti,omap2-uart", early_omap8250_setup);
    OF_EARLYCON_DECLARE(omap8250, "ti,omap3-uart", early_omap8250_setup);
    OF_EARLYCON_DECLARE(omap8250, "ti,omap4-uart", early_omap8250_setup);

Generate a unique identifier for each declaration in the current
compilation unit.

Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
---
 include/linux/serial_core.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 675d36f..0a711a7 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -362,7 +362,7 @@ extern int of_setup_earlycon(const struct of_device_id *match,
 #endif
 
 #define OF_EARLYCON_DECLARE(_name, compat, fn)				\
-	static const struct of_device_id __of_table_##_name		\
+	static const struct of_device_id __UNIQUE_ID(_name)		\
 		EARLYCON_OF_TABLE_ATTR					\
 		 = { .name = __stringify(_name),			\
 		     .compatible = compat,				\
-- 
2.3.1

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