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authorPrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>2016-08-25 20:00:49 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-08-31 15:12:35 +0300
commitca75d601b5942e8cf5eed68f308be0526d0dac5d (patch)
treeca411c99f5715a5976eb942a061dfa3b2b6e841d /drivers
parent832c8232dd7be4977ae9fb9c7cbc4decce19a8fc (diff)
downloadlinux-ca75d601b5942e8cf5eed68f308be0526d0dac5d.tar.xz
miscdevice: Add helper macro for misc device boilerplate
Many modules call misc_register and misc_deregister in its module init and exit methods without any additional code. This ends up being boilerplate. This patch adds helper macro module_misc_device(), that replaces module_init()/ module_exit() with template functions. This patch also converts drivers to use new macro. Change since v1: Add device.h include in miscdevice.h as module_driver macro was not available from other include files in some architectures. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/hid/uhid.c13
-rw-r--r--drivers/input/misc/uinput.c15
-rw-r--r--drivers/s390/char/sclp_ctl.c19
-rw-r--r--drivers/vhost/test.c13
4 files changed, 5 insertions, 55 deletions
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 99ec3ff7563b..7f8ff39ed44b 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -779,19 +779,8 @@ static struct miscdevice uhid_misc = {
.minor = UHID_MINOR,
.name = UHID_NAME,
};
+module_misc_device(uhid_misc);
-static int __init uhid_init(void)
-{
- return misc_register(&uhid_misc);
-}
-
-static void __exit uhid_exit(void)
-{
- misc_deregister(&uhid_misc);
-}
-
-module_init(uhid_init);
-module_exit(uhid_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
MODULE_DESCRIPTION("User-space I/O driver support for HID subsystem");
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 65ebbd111702..92595b98e7ed 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -1013,23 +1013,12 @@ static struct miscdevice uinput_misc = {
.minor = UINPUT_MINOR,
.name = UINPUT_NAME,
};
+module_misc_device(uinput_misc);
+
MODULE_ALIAS_MISCDEV(UINPUT_MINOR);
MODULE_ALIAS("devname:" UINPUT_NAME);
-static int __init uinput_init(void)
-{
- return misc_register(&uinput_misc);
-}
-
-static void __exit uinput_exit(void)
-{
- misc_deregister(&uinput_misc);
-}
-
MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
MODULE_DESCRIPTION("User level driver support for input subsystem");
MODULE_LICENSE("GPL");
MODULE_VERSION("0.3");
-
-module_init(uinput_init);
-module_exit(uinput_exit);
diff --git a/drivers/s390/char/sclp_ctl.c b/drivers/s390/char/sclp_ctl.c
index ea607a4a1bdd..554eaa1e347d 100644
--- a/drivers/s390/char/sclp_ctl.c
+++ b/drivers/s390/char/sclp_ctl.c
@@ -126,21 +126,4 @@ static struct miscdevice sclp_ctl_device = {
.name = "sclp",
.fops = &sclp_ctl_fops,
};
-
-/*
- * Register sclp_ctl misc device
- */
-static int __init sclp_ctl_init(void)
-{
- return misc_register(&sclp_ctl_device);
-}
-module_init(sclp_ctl_init);
-
-/*
- * Deregister sclp_ctl misc device
- */
-static void __exit sclp_ctl_exit(void)
-{
- misc_deregister(&sclp_ctl_device);
-}
-module_exit(sclp_ctl_exit);
+module_misc_device(sclp_ctl_device);
diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c
index 388eec4e1a90..70c342c987f7 100644
--- a/drivers/vhost/test.c
+++ b/drivers/vhost/test.c
@@ -322,18 +322,7 @@ static struct miscdevice vhost_test_misc = {
"vhost-test",
&vhost_test_fops,
};
-
-static int vhost_test_init(void)
-{
- return misc_register(&vhost_test_misc);
-}
-module_init(vhost_test_init);
-
-static void vhost_test_exit(void)
-{
- misc_deregister(&vhost_test_misc);
-}
-module_exit(vhost_test_exit);
+module_misc_device(vhost_test_misc);
MODULE_VERSION("0.0.1");
MODULE_LICENSE("GPL v2");