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From: Paul Gortmaker <paul.gortmaker@windriver.com>
To: linux-kernel@vger.kernel.org
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	linux-sh@vger.kernel.org
Subject: [PATCH 4/4] sh: make heartbeat driver explicitly non-modular
Date: Fri, 22 Apr 2016 18:07:04 +0000	[thread overview]
Message-ID: <1461348424-3896-5-git-send-email-paul.gortmaker@windriver.com> (raw)
In-Reply-To: <1461348424-3896-1-git-send-email-paul.gortmaker@windriver.com>

The Kconfig for this driver is currently:

config HEARTBEAT
        bool "Heartbeat LED"

...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 translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.

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.

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: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 arch/sh/drivers/heartbeat.c | 32 +++-----------------------------
 1 file changed, 3 insertions(+), 29 deletions(-)

diff --git a/arch/sh/drivers/heartbeat.c b/arch/sh/drivers/heartbeat.c
index 7efc9c354fc7..49bace446a1a 100644
--- a/arch/sh/drivers/heartbeat.c
+++ b/arch/sh/drivers/heartbeat.c
@@ -19,7 +19,6 @@
  * for more details.
  */
 #include <linux/init.h>
-#include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
 #include <linux/timer.h>
@@ -139,26 +138,11 @@ static int heartbeat_drv_probe(struct platform_device *pdev)
 	return mod_timer(&hd->timer, jiffies + 1);
 }
 
-static int heartbeat_drv_remove(struct platform_device *pdev)
-{
-	struct heartbeat_data *hd = platform_get_drvdata(pdev);
-
-	del_timer_sync(&hd->timer);
-	iounmap(hd->base);
-
-	platform_set_drvdata(pdev, NULL);
-
-	if (!pdev->dev.platform_data)
-		kfree(hd);
-
-	return 0;
-}
-
 static struct platform_driver heartbeat_driver = {
 	.probe		= heartbeat_drv_probe,
-	.remove		= heartbeat_drv_remove,
 	.driver		= {
-		.name	= DRV_NAME,
+		.name			= DRV_NAME,
+		.suppress_bind_attrs	= true,
 	},
 };
 
@@ -167,14 +151,4 @@ static int __init heartbeat_init(void)
 	printk(KERN_NOTICE DRV_NAME ": version %s loaded\n", DRV_VERSION);
 	return platform_driver_register(&heartbeat_driver);
 }
-
-static void __exit heartbeat_exit(void)
-{
-	platform_driver_unregister(&heartbeat_driver);
-}
-module_init(heartbeat_init);
-module_exit(heartbeat_exit);
-
-MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR("Paul Mundt");
-MODULE_LICENSE("GPL v2");
+device_initcall(heartbeat_init);
-- 
2.8.0


WARNING: multiple messages have this Message-ID (diff)
From: Paul Gortmaker <paul.gortmaker@windriver.com>
To: <linux-kernel@vger.kernel.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>, <linux-sh@vger.kernel.org>
Subject: [PATCH 4/4] sh: make heartbeat driver explicitly non-modular
Date: Fri, 22 Apr 2016 14:07:04 -0400	[thread overview]
Message-ID: <1461348424-3896-5-git-send-email-paul.gortmaker@windriver.com> (raw)
In-Reply-To: <1461348424-3896-1-git-send-email-paul.gortmaker@windriver.com>

The Kconfig for this driver is currently:

config HEARTBEAT
        bool "Heartbeat LED"

...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 translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.

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.

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: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 arch/sh/drivers/heartbeat.c | 32 +++-----------------------------
 1 file changed, 3 insertions(+), 29 deletions(-)

diff --git a/arch/sh/drivers/heartbeat.c b/arch/sh/drivers/heartbeat.c
index 7efc9c354fc7..49bace446a1a 100644
--- a/arch/sh/drivers/heartbeat.c
+++ b/arch/sh/drivers/heartbeat.c
@@ -19,7 +19,6 @@
  * for more details.
  */
 #include <linux/init.h>
-#include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
 #include <linux/timer.h>
@@ -139,26 +138,11 @@ static int heartbeat_drv_probe(struct platform_device *pdev)
 	return mod_timer(&hd->timer, jiffies + 1);
 }
 
-static int heartbeat_drv_remove(struct platform_device *pdev)
-{
-	struct heartbeat_data *hd = platform_get_drvdata(pdev);
-
-	del_timer_sync(&hd->timer);
-	iounmap(hd->base);
-
-	platform_set_drvdata(pdev, NULL);
-
-	if (!pdev->dev.platform_data)
-		kfree(hd);
-
-	return 0;
-}
-
 static struct platform_driver heartbeat_driver = {
 	.probe		= heartbeat_drv_probe,
-	.remove		= heartbeat_drv_remove,
 	.driver		= {
-		.name	= DRV_NAME,
+		.name			= DRV_NAME,
+		.suppress_bind_attrs	= true,
 	},
 };
 
@@ -167,14 +151,4 @@ static int __init heartbeat_init(void)
 	printk(KERN_NOTICE DRV_NAME ": version %s loaded\n", DRV_VERSION);
 	return platform_driver_register(&heartbeat_driver);
 }
-
-static void __exit heartbeat_exit(void)
-{
-	platform_driver_unregister(&heartbeat_driver);
-}
-module_init(heartbeat_init);
-module_exit(heartbeat_exit);
-
-MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR("Paul Mundt");
-MODULE_LICENSE("GPL v2");
+device_initcall(heartbeat_init);
-- 
2.8.0

  parent reply	other threads:[~2016-04-22 18:07 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-22 18:07 [PATCH 0/4] sh: fix up modular use in non-modular code Paul Gortmaker
2016-04-22 18:07 ` Paul Gortmaker
2016-04-22 18:07 ` [PATCH 1/4] sh: make time.c explicitly non-modular Paul Gortmaker
2016-04-22 18:07   ` Paul Gortmaker
2016-04-22 18:07 ` [PATCH 2/4] sh: make mm/asids-debugfs " Paul Gortmaker
2016-04-22 18:07   ` Paul Gortmaker
2016-04-22 18:07 ` [PATCH 3/4] sh: make board-secureedge5410 " Paul Gortmaker
2016-04-22 18:07   ` Paul Gortmaker
2016-04-22 18:07 ` Paul Gortmaker [this message]
2016-04-22 18:07   ` [PATCH 4/4] sh: make heartbeat driver " Paul Gortmaker
2016-05-26 16:45 ` [PATCH 0/4] sh: fix up modular use in non-modular code Paul Gortmaker
2016-05-26 16:45   ` Paul Gortmaker
2016-05-26 16:53   ` Rich Felker
2016-05-26 16:53     ` Rich Felker
2016-06-02  6:54     ` Yoshinori Sato
2016-06-02  6:54       ` Yoshinori Sato
2016-07-02 23:40       ` Paul Gortmaker
2016-07-02 23:40         ` Paul Gortmaker

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