[PATCH] drivers/tty: make serial/mvebu-uart.c explicitly non-modular

From: Paul Gortmaker
Date: Sun Mar 13 2016 - 19:50:32 EST


The Kconfig currently controlling compilation of this code is:

drivers/tty/serial/Kconfig:config SERIAL_MVEBU_UART
drivers/tty/serial/Kconfig: bool "Marvell EBU serial port support"

...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 the code wasn't using module_init to begin with, 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
was (or is now) contained at the top of the file in the comments.

Cc: Wilson Ding <dingwei@xxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Jiri Slaby <jslaby@xxxxxxxx>
Cc: linux-serial@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
---
drivers/tty/serial/mvebu-uart.c | 28 +++-------------------------
1 file changed, 3 insertions(+), 25 deletions(-)

diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
index 0ff27818bb87..df5f1d9e233c 100644
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -1,5 +1,7 @@
/*
* ***************************************************************************
+* Marvell Armada-3700 Serial Driver
+* Author: Wilson Ding <dingwei@xxxxxxxxxxx>
* Copyright (C) 2015 Marvell International Ltd.
* ***************************************************************************
* This program is free software: you can redistribute it and/or modify it
@@ -23,7 +25,6 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/iopoll.h>
-#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
@@ -594,30 +595,19 @@ static int mvebu_uart_probe(struct platform_device *pdev)
return 0;
}

-static int mvebu_uart_remove(struct platform_device *pdev)
-{
- struct mvebu_uart_data *data = platform_get_drvdata(pdev);
-
- uart_remove_one_port(&mvebu_uart_driver, data->port);
- data->port->private_data = NULL;
- data->port->mapbase = 0;
- return 0;
-}
-
/* Match table for of_platform binding */
static const struct of_device_id mvebu_uart_of_match[] = {
{ .compatible = "marvell,armada-3700-uart", },
{}
};
-MODULE_DEVICE_TABLE(of, mvebu_uart_of_match);

static struct platform_driver mvebu_uart_platform_driver = {
.probe = mvebu_uart_probe,
- .remove = mvebu_uart_remove,
.driver = {
.owner = THIS_MODULE,
.name = "mvebu-uart",
.of_match_table = of_match_ptr(mvebu_uart_of_match),
+ .suppress_bind_attrs = true,
},
};

@@ -635,16 +625,4 @@ static int __init mvebu_uart_init(void)

return ret;
}
-
-static void __exit mvebu_uart_exit(void)
-{
- platform_driver_unregister(&mvebu_uart_platform_driver);
- uart_unregister_driver(&mvebu_uart_driver);
-}
-
arch_initcall(mvebu_uart_init);
-module_exit(mvebu_uart_exit);
-
-MODULE_AUTHOR("Wilson Ding <dingwei@xxxxxxxxxxx>");
-MODULE_DESCRIPTION("Marvell Armada-3700 Serial Driver");
-MODULE_LICENSE("GPL");
--
2.6.1