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Date:   Sun, 14 Feb 2021 00:45:53 +0800
From:   Dejin Zheng <>
        Dejin Zheng <>
Subject: [PATCH mtd/next 1/8] mtd: Add helper macro for register_mtd_blktrans boilerplate

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

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

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__ */

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