[PATCH v3 1/2] Staging: speakup: Add helper macro for spk_synth boilerplate

[Vaishali Thakkar <vthakkar1994@gmail.com>]

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

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
---
Changes since v1:
	- Use module_driver macro in definition of helper macro
Changes since v2:
	- Correct unnecessory line wrapping of module_driver
	- Split patch in to 2 patches

 drivers/staging/speakup/spk_types.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/staging/speakup/spk_types.h b/drivers/staging/speakup/spk_types.h
index 8c565c9..5d0bc5f 100644
--- a/drivers/staging/speakup/spk_types.h
+++ b/drivers/staging/speakup/spk_types.h
@@ -16,6 +16,7 @@
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
 #include <linux/io.h>		/* for inb_p, outb_p, inb, outb, etc... */
+#include <linux/device.h>	/* for struct device */
 
 enum var_type_t {
 	VAR_NUM = 0,
@@ -179,6 +180,15 @@ struct spk_synth {
 	struct attribute_group attributes;
 };
 
+/**
+ * module_spk_synth() - Helper macro for registering a speakup driver
+ * @__spk_synth: spk_synth struct
+ * Helper macro for speakup 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_spk_synth(__spk_synth) \
+	 module_driver(__spk_synth, synth_add, synth_remove)
 struct speakup_info_t {
 	spinlock_t spinlock;
 	int port_tts;
-- 
1.9.1