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authorSean Wang <sean.wang@mediatek.com>2019-03-14 05:01:58 +0800
committerMarcel Holtmann <marcel@holtmann.org>2019-04-23 18:09:07 +0200
commitdb0a390835209c1c5dce7669de3d23a8cba10f34 (patch)
tree6178187d3900dbfeb1b6a53bdc98a56fd3106f10 /include/linux/mmc
parentbbb69b37be15e1cff74730b7fa5659e1ee705795 (diff)
mmc: sdio: Add helper macro for sdio_driver boilerplate
This patch introduces the module_sdio_driver macro which is a convenience macro for SDIO driver modules similar to module_usb_driver. It is intended to be used by drivers which init/exit section does nothing but register/ unregister the SDIO driver. By using this macro it is possible to eliminate a few lines of boilerplate code per SDIO driver. Suggested-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'include/linux/mmc')
-rw-r--r--include/linux/mmc/sdio_func.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
index 97ca105347a6..5685805533b5 100644
--- a/include/linux/mmc/sdio_func.h
+++ b/include/linux/mmc/sdio_func.h
@@ -111,6 +111,18 @@ struct sdio_driver {
extern int sdio_register_driver(struct sdio_driver *);
extern void sdio_unregister_driver(struct sdio_driver *);
+/**
+ * module_sdio_driver() - Helper macro for registering a SDIO driver
+ * @__sdio_driver: sdio_driver struct
+ *
+ * Helper macro for SDIO 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_sdio_driver(__sdio_driver) \
+ module_driver(__sdio_driver, sdio_register_driver, \
+ sdio_unregister_driver)
+
/*
* SDIO I/O operations
*/