linux-kernel - [PATCH] [media] rc/keymaps: Add helper macro for rc_map

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Date:	Sat, 11 Jul 2015 08:47:37 +0530
From:	Vaishali Thakkar <vthakkar1994@...il.com>
To:	Mauro Carvalho Chehab <mchehab@....samsung.com>
Cc:	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [media] rc/keymaps: Add helper macro for rc_map_list
 boilerplate

For simple modules that contain a single rc_map_list without any
additional setup code then ends up being a block of duplicated
boilerplate. This patch adds a new macro, module_rc_map_list(),
which replaces the module_init()/module_exit() registrations with
template functions.

Signed-off-by: Vaishali Thakkar <vthakkar1994@...il.com>
---
 include/media/rc-map.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/media/rc-map.h b/include/media/rc-map.h
index 27763d5..07e765d 100644
--- a/include/media/rc-map.h
+++ b/include/media/rc-map.h
@@ -96,6 +96,16 @@ struct rc_map_list {
 	struct rc_map map;
 };
 
+/**
+ * module_rc_map_list() - Helper macro for registering a RC drivers
+ * @__rc_map_list: rc_map_list struct
+ * Helper macro for RC drivers which do not do anything special in module
+ * init/exit. This eliminates a lot of boilerplate. Each module may only
+ * use this macro once, and calling it replaces module_init() and module_exit()
+ */
+#define module_rc_map_list(__rc_map_list) \
+	module_driver(__rc_map_list, rc_map_register, rc_map_unregister)
+
 /* Routines from rc-map.c */
 
 int rc_map_register(struct rc_map_list *map);
-- 
1.9.1

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