diff mbox series

[mtd/next,1/8] mtd: Add helper macro for register_mtd_blktrans boilerplate

Message ID 20210213164600.409061-2-zhengdejin5@gmail.com
State Accepted
Headers show
Series Introduces the module_mtd_blktrans macro | expand

Commit Message

Dejin Zheng Feb. 13, 2021, 4:45 p.m. UTC
This patch introduces the module_mtd_blktrans macro which is a convenience
macro for mtd blktrans modules similar to module_platform_driver.
It is intended to be used by drivers which init/exit section does nothing
but register/unregister the mtd blktrans driver. By using this macro it is
possible to eliminate a few lines of boilerplate code per mtd blktrans
driver.

Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
---
 include/linux/mtd/blktrans.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

Comments

Miquel Raynal March 2, 2021, 5:14 p.m. UTC | #1
On Sat, 2021-02-13 at 16:45:53 UTC, Dejin Zheng wrote:
> This patch introduces the module_mtd_blktrans macro which is a convenience
> macro for mtd blktrans modules similar to module_platform_driver.
> It is intended to be used by drivers which init/exit section does nothing
> but register/unregister the mtd blktrans driver. By using this macro it is
> possible to eliminate a few lines of boilerplate code per mtd blktrans
> driver.
> 
> Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next, thanks.

Miquel
diff mbox series

Patch

diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h
index 3c668cb1e344..15cc9b95e32b 100644
--- a/include/linux/mtd/blktrans.h
+++ b/include/linux/mtd/blktrans.h
@@ -77,5 +77,16 @@  extern int add_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
 extern int del_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
 extern int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev);
 
+/**
+ * module_mtd_blktrans() - Helper macro for registering a mtd blktrans driver
+ * @__mtd_blktrans: mtd_blktrans_ops struct
+ *
+ * Helper macro for mtd blktrans 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_mtd_blktrans(__mtd_blktrans) \
+	module_driver(__mtd_blktrans, register_mtd_blktrans, \
+					deregister_mtd_blktrans)
 
 #endif /* __MTD_TRANS_H__ */