[PATCH] drivers/misc: make arm-charlcd.c explicitly non-modular

From: Paul Gortmaker
Date: Sun Dec 13 2015 - 20:08:03 EST


The Kconfig currently controlling compilation of this code is:

drivers/misc/Kconfig:config ARM_CHARLCD
drivers/misc/Kconfig: bool "ARM Ltd. Character LCD Driver"

...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 this driver did not have a ".remove"
function coded for non-modular drivers either.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

We don't replace module.h with init.h since the file already has that.

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: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
---

[ No 0/N lead in this time as drivers/misc only has one cleanup
patch, but everyone on the Cc: knows what the 0/N boilerplate
would say if it existed by now anyway... ]

drivers/misc/arm-charlcd.c | 24 ++----------------------
1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/drivers/misc/arm-charlcd.c b/drivers/misc/arm-charlcd.c
index c65b5ea5d5ef..b3176ee92b90 100644
--- a/drivers/misc/arm-charlcd.c
+++ b/drivers/misc/arm-charlcd.c
@@ -8,7 +8,6 @@
* Author: Linus Walleij <triad@xxxxxxxxx>
*/
#include <linux/init.h>
-#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/of.h>
@@ -328,20 +327,6 @@ out_no_resource:
return ret;
}

-static int __exit charlcd_remove(struct platform_device *pdev)
-{
- struct charlcd *lcd = platform_get_drvdata(pdev);
-
- if (lcd) {
- free_irq(lcd->irq, lcd);
- iounmap(lcd->virtbase);
- release_mem_region(lcd->phybase, lcd->physize);
- kfree(lcd);
- }
-
- return 0;
-}
-
static int charlcd_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
@@ -376,13 +361,8 @@ static struct platform_driver charlcd_driver = {
.driver = {
.name = DRIVERNAME,
.pm = &charlcd_pm_ops,
+ .suppress_bind_attrs = true,
.of_match_table = of_match_ptr(charlcd_match),
},
- .remove = __exit_p(charlcd_remove),
};
-
-module_platform_driver_probe(charlcd_driver, charlcd_probe);
-
-MODULE_AUTHOR("Linus Walleij <triad@xxxxxxxxx>");
-MODULE_DESCRIPTION("ARM Character LCD Driver");
-MODULE_LICENSE("GPL v2");
+builtin_platform_driver_probe(charlcd_driver, charlcd_probe);
--
2.6.1

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