linux-kernel - [PATCH 1/2] siox: add helper macro to simplify driver registration

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Message-Id: <1561354834-22617-2-git-send-email-info@metux.net>
Date:   Mon, 24 Jun 2019 07:40:33 +0200
From:   "Enrico Weigelt, metux IT consult" <info@...ux.net>
To:     linux-kernel@...r.kernel.org
Cc:     kernel@...gutronix.de, linus.walleij@...aro.org,
        bgolaszewski@...libre.com, linux-gpio@...r.kernel.org,
        t.scherer@...elmann.de
Subject: [PATCH 1/2] siox: add helper macro to simplify driver registration

From: Enrico Weigelt <info@...ux.net>

Add more helper macros for trivial driver init cases, similar to the
already existing module_platform_driver() or module_i2c_driver().

This helps to reduce driver init boilerplate.

Signed-off-by: Enrico Weigelt <info@...ux.net>
---
 include/linux/siox.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/linux/siox.h b/include/linux/siox.h
index a860cb8..da7225b 100644
--- a/include/linux/siox.h
+++ b/include/linux/siox.h
@@ -72,3 +72,13 @@ static inline void siox_driver_unregister(struct siox_driver *sdriver)
 {
 	return driver_unregister(&sdriver->driver);
 }
+
+/*
+ * module_siox_driver() - Helper macro for drivers that don't 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_siox_driver(__siox_driver) \
+	module_driver(__siox_driver, siox_driver_register, \
+			siox_driver_unregister)
-- 
1.9.1