linux-kernel - [PATCH 18/18] mfd: wm8400-core: Make it explicitly non-modular

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Message-ID: <1544213465-16259-19-git-send-email-paul.gortmaker@windriver.com>
Date:   Fri, 7 Dec 2018 15:11:05 -0500
From:   Paul Gortmaker <paul.gortmaker@...driver.com>
To:     Lee Jones <lee.jones@...aro.org>
CC:     <linux-kernel@...r.kernel.org>,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Mark Brown <broonie@...nsource.wolfsonmicro.com>,
        <patches@...nsource.cirrus.com>
Subject: [PATCH 18/18] mfd: wm8400-core: Make it explicitly non-modular

The Kconfig currently controlling compilation of this code is:

drivers/mfd/Kconfig:config MFD_WM8400
drivers/mfd/Kconfig:    bool "Wolfson Microelectronics WM8400"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Since module_init was not in use by this code, the init ordering
remains unchanged with this commit.

A trivial function rename from wm8400_module_init to the name
wm8400_driver_init is also done to reduce possible confusion.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Lee Jones <lee.jones@...aro.org>
Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc: patches@...nsource.cirrus.com
Acked-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 drivers/mfd/wm8400-core.c | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c
index 8a98a2fc74e1..79756c83f5f0 100644
--- a/drivers/mfd/wm8400-core.c
+++ b/drivers/mfd/wm8400-core.c
@@ -12,7 +12,7 @@
  *
  */
 
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/bug.h>
 #include <linux/err.h>
 #include <linux/i2c.h>
@@ -150,7 +150,6 @@ static const struct i2c_device_id wm8400_i2c_id[] = {
        { "wm8400", 0 },
        { }
 };
-MODULE_DEVICE_TABLE(i2c, wm8400_i2c_id);
 
 static struct i2c_driver wm8400_i2c_driver = {
 	.driver = {
@@ -161,7 +160,7 @@ static struct i2c_driver wm8400_i2c_driver = {
 };
 #endif
 
-static int __init wm8400_module_init(void)
+static int __init wm8400_driver_init(void)
 {
 	int ret = -ENODEV;
 
@@ -173,15 +172,4 @@ static int __init wm8400_module_init(void)
 
 	return ret;
 }
-subsys_initcall(wm8400_module_init);
-
-static void __exit wm8400_module_exit(void)
-{
-#if IS_ENABLED(CONFIG_I2C)
-	i2c_del_driver(&wm8400_i2c_driver);
-#endif
-}
-module_exit(wm8400_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Mark Brown <broonie@...nsource.wolfsonmicro.com>");
+subsys_initcall(wm8400_driver_init);
-- 
2.7.4