[PATCH 01/18] mfd: aat2870-core: Make it explicitly non-modular

From: Paul Gortmaker
Date: Fri Dec 07 2018 - 15:13:32 EST


The Kconfig currently controlling compilation of this code is:

drivers/mfd/Kconfig:config MFD_AAT2870_CORE
drivers/mfd/Kconfig: bool "AnalogicTech AAT2870"

...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.

We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.

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

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@xxxxxxxxxx>
Cc: Jin Park <jinyoungp@xxxxxxxxxx>
Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
---
drivers/mfd/aat2870-core.c | 40 +++-------------------------------------
1 file changed, 3 insertions(+), 37 deletions(-)

diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 3ba19a45f199..9d3d90d386c2 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -20,7 +20,6 @@
*/

#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/init.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
@@ -349,18 +348,10 @@ static void aat2870_init_debugfs(struct aat2870_data *aat2870)
"Failed to create debugfs register file\n");
}

-static void aat2870_uninit_debugfs(struct aat2870_data *aat2870)
-{
- debugfs_remove_recursive(aat2870->dentry_root);
-}
#else
static inline void aat2870_init_debugfs(struct aat2870_data *aat2870)
{
}
-
-static inline void aat2870_uninit_debugfs(struct aat2870_data *aat2870)
-{
-}
#endif /* CONFIG_DEBUG_FS */

static int aat2870_i2c_probe(struct i2c_client *client,
@@ -440,20 +431,6 @@ static int aat2870_i2c_probe(struct i2c_client *client,
return ret;
}

-static int aat2870_i2c_remove(struct i2c_client *client)
-{
- struct aat2870_data *aat2870 = i2c_get_clientdata(client);
-
- aat2870_uninit_debugfs(aat2870);
-
- mfd_remove_devices(aat2870->dev);
- aat2870_disable(aat2870);
- if (aat2870->uninit)
- aat2870->uninit(aat2870);
-
- return 0;
-}
-
#ifdef CONFIG_PM_SLEEP
static int aat2870_i2c_suspend(struct device *dev)
{
@@ -492,15 +469,14 @@ static const struct i2c_device_id aat2870_i2c_id_table[] = {
{ "aat2870", 0 },
{ }
};
-MODULE_DEVICE_TABLE(i2c, aat2870_i2c_id_table);

static struct i2c_driver aat2870_i2c_driver = {
.driver = {
- .name = "aat2870",
- .pm = &aat2870_pm_ops,
+ .name = "aat2870",
+ .pm = &aat2870_pm_ops,
+ .suppress_bind_attrs = true,
},
.probe = aat2870_i2c_probe,
- .remove = aat2870_i2c_remove,
.id_table = aat2870_i2c_id_table,
};

@@ -509,13 +485,3 @@ static int __init aat2870_init(void)
return i2c_add_driver(&aat2870_i2c_driver);
}
subsys_initcall(aat2870_init);
-
-static void __exit aat2870_exit(void)
-{
- i2c_del_driver(&aat2870_i2c_driver);
-}
-module_exit(aat2870_exit);
-
-MODULE_DESCRIPTION("Core support for the AnalogicTech AAT2870");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jin Park <jinyoungp@xxxxxxxxxx>");
--
2.7.4