[PATCH 00/12] ACPI: add module_acpi_driver() and convert drivers to it

[PATCH 00/12] ACPI: add module_acpi_driver() and convert drivers to it

[Mika Westerberg]

This is similar than what is done for other busses before (PCI, I2C, SPI,
platform). It reduces a lot of unnecessary boilerplate code from modules.

We also remove following redundant check on few drivers:

	if (acpi_disabled)
		return -ENODEV;

as this same check is already done at the beginning of
acpi_bus_register_driver().

I think these should all go via ACPI tree because they all depend on the
first patch which adds the macro to the ACPI subsystem.

Mika Westerberg (12):
  ACPI: introduce module_acpi_driver() helper macro
  ACPI/button: convert to module_acpi_driver()
  ACPI/fan: convert to module_acpi_driver()
  ACPI/hed: convert to module_acpi_driver()
  ACPI/sbshc: convert to module_acpi_driver()
  i2c-scmi: convert to module_acpi_driver()
  Input: atlas_btns - convert to module_acpi_driver()
  hp_accel: convert to module_acpi_driver()
  ideapad: convert to module_acpi_driver()
  topstar-laptop: convert to module_acpi_driver()
  toshiba_bluetooth: convert to module_acpi_driver()
  xo15-ebook: convert to module_acpi_driver()

 drivers/acpi/button.c                    |   13 +------------
 drivers/acpi/fan.c                       |   22 +---------------------
 drivers/acpi/hed.c                       |   20 +-------------------
 drivers/acpi/sbshc.c                     |   18 +-----------------
 drivers/i2c/busses/i2c-scmi.c            |   14 +-------------
 drivers/input/misc/atlas_btns.c          |   17 +----------------
 drivers/platform/x86/hp_accel.c          |   25 +------------------------
 drivers/platform/x86/ideapad-laptop.c    |   14 +-------------
 drivers/platform/x86/topstar-laptop.c    |   22 +---------------------
 drivers/platform/x86/toshiba_bluetooth.c |   22 +---------------------
 drivers/platform/x86/xo15-ebook.c        |   14 +-------------
 include/acpi/acpi_bus.h                  |   13 +++++++++++++
 12 files changed, 24 insertions(+), 190 deletions(-)

-- 
1.7.10

[PATCH 01/12] ACPI: introduce module_acpi_driver() helper macro

[Mika Westerberg]

Add a helper macro module_acpi_driver() which reduces the boilerplate code
for ACPI drivers. This is similar what is done for other busses (PCI, SPI,
I2C etc).

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 include/acpi/acpi_bus.h |   13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 9e6e1c6..45d3249 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -376,6 +376,19 @@ int acpi_match_device_ids(struct acpi_device *device,
 int acpi_create_dir(struct acpi_device *);
 void acpi_remove_dir(struct acpi_device *);
 
+
+/**
+ * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
+ * @__acpi_driver: acpi_driver struct
+ *
+ * Helper macro for ACPI drivers which do not do anything special in module
+ * init/exit. This eliminates a lot of boilerplate. Each module may only
+ * use this macro once, and calling it replaces module_init() and module_exit()
+ */
+#define module_acpi_driver(__acpi_driver) \
+	module_driver(__acpi_driver, acpi_bus_register_driver, \
+		      acpi_bus_unregister_driver)
+
 /*
  * Bind physical devices with ACPI devices
  */
-- 
1.7.10

[PATCH 02/12] ACPI/button: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/acpi/button.c |   13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index d27d072..15968ef 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -443,15 +443,4 @@ static int acpi_button_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
-static int __init acpi_button_init(void)
-{
-	return acpi_bus_register_driver(&acpi_button_driver);
-}
-
-static void __exit acpi_button_exit(void)
-{
-	acpi_bus_unregister_driver(&acpi_button_driver);
-}
-
-module_init(acpi_button_init);
-module_exit(acpi_button_exit);
+module_acpi_driver(acpi_button_driver);
-- 
1.7.10

[PATCH 03/12] ACPI/fan: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/acpi/fan.c |   22 +---------------------
 1 file changed, 1 insertion(+), 21 deletions(-)

diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 0f0356c..b142797 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -207,24 +207,4 @@ static int acpi_fan_resume(struct acpi_device *device)
 	return result;
 }
 
-static int __init acpi_fan_init(void)
-{
-	int result = 0;
-
-	result = acpi_bus_register_driver(&acpi_fan_driver);
-	if (result < 0)
-		return -ENODEV;
-
-	return 0;
-}
-
-static void __exit acpi_fan_exit(void)
-{
-
-	acpi_bus_unregister_driver(&acpi_fan_driver);
-
-	return;
-}
-
-module_init(acpi_fan_init);
-module_exit(acpi_fan_exit);
+module_acpi_driver(acpi_fan_driver);
-- 
1.7.10

[PATCH 04/12] ACPI/hed: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/acpi/hed.c |   20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/acpi/hed.c b/drivers/acpi/hed.c
index d0c1967..20a0f2c 100644
--- a/drivers/acpi/hed.c
+++ b/drivers/acpi/hed.c
@@ -86,25 +86,7 @@ static struct acpi_driver acpi_hed_driver = {
 		.notify = acpi_hed_notify,
 	},
 };
-
-static int __init acpi_hed_init(void)
-{
-	if (acpi_disabled)
-		return -ENODEV;
-
-	if (acpi_bus_register_driver(&acpi_hed_driver) < 0)
-		return -ENODEV;
-
-	return 0;
-}
-
-static void __exit acpi_hed_exit(void)
-{
-	acpi_bus_unregister_driver(&acpi_hed_driver);
-}
-
-module_init(acpi_hed_init);
-module_exit(acpi_hed_exit);
+module_acpi_driver(acpi_hed_driver);
 
 ACPI_MODULE_NAME("hed");
 MODULE_AUTHOR("Huang Ying");
-- 
1.7.10

[PATCH 05/12] ACPI/sbshc: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/acpi/sbshc.c |   18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index f8d2a47..cf6129a 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -310,23 +310,7 @@ static int acpi_smbus_hc_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
-static int __init acpi_smb_hc_init(void)
-{
-	int result;
-
-	result = acpi_bus_register_driver(&acpi_smb_hc_driver);
-	if (result < 0)
-		return -ENODEV;
-	return 0;
-}
-
-static void __exit acpi_smb_hc_exit(void)
-{
-	acpi_bus_unregister_driver(&acpi_smb_hc_driver);
-}
-
-module_init(acpi_smb_hc_init);
-module_exit(acpi_smb_hc_exit);
+module_acpi_driver(acpi_smb_hc_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Alexey Starikovskiy");
-- 
1.7.10

[PATCH 06/12] i2c-scmi: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/i2c/busses/i2c-scmi.c |   14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c
index 388cbdc..6aafa3d 100644
--- a/drivers/i2c/busses/i2c-scmi.c
+++ b/drivers/i2c/busses/i2c-scmi.c
@@ -426,19 +426,7 @@ static struct acpi_driver acpi_smbus_cmi_driver = {
 		.remove = acpi_smbus_cmi_remove,
 	},
 };
-
-static int __init acpi_smbus_cmi_init(void)
-{
-	return acpi_bus_register_driver(&acpi_smbus_cmi_driver);
-}
-
-static void __exit acpi_smbus_cmi_exit(void)
-{
-	acpi_bus_unregister_driver(&acpi_smbus_cmi_driver);
-}
-
-module_init(acpi_smbus_cmi_init);
-module_exit(acpi_smbus_cmi_exit);
+module_acpi_driver(acpi_smbus_cmi_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Crane Cai <crane.cai@amd.com>");
-- 
1.7.10

[PATCH 07/12] Input: atlas_btns - convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/input/misc/atlas_btns.c |   17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/drivers/input/misc/atlas_btns.c b/drivers/input/misc/atlas_btns.c
index 601f737..26f1313 100644
--- a/drivers/input/misc/atlas_btns.c
+++ b/drivers/input/misc/atlas_btns.c
@@ -151,22 +151,7 @@ static struct acpi_driver atlas_acpi_driver = {
 		.remove	= atlas_acpi_button_remove,
 	},
 };
-
-static int __init atlas_acpi_init(void)
-{
-	if (acpi_disabled)
-		return -ENODEV;
-
-	return acpi_bus_register_driver(&atlas_acpi_driver);
-}
-
-static void __exit atlas_acpi_exit(void)
-{
-	acpi_bus_unregister_driver(&atlas_acpi_driver);
-}
-
-module_init(atlas_acpi_init);
-module_exit(atlas_acpi_exit);
+module_acpi_driver(atlas_acpi_driver);
 
 MODULE_AUTHOR("Jaya Kumar");
 MODULE_LICENSE("GPL");
-- 
1.7.10

[PATCH 08/12] hp_accel: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/platform/x86/hp_accel.c |   25 +------------------------
 1 file changed, 1 insertion(+), 24 deletions(-)

diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c
index 22b2dfa..7246e66 100644
--- a/drivers/platform/x86/hp_accel.c
+++ b/drivers/platform/x86/hp_accel.c
@@ -381,31 +381,8 @@ static struct acpi_driver lis3lv02d_driver = {
 		.resume  = lis3lv02d_resume,
 	}
 };
-
-static int __init lis3lv02d_init_module(void)
-{
-	int ret;
-
-	if (acpi_disabled)
-		return -ENODEV;
-
-	ret = acpi_bus_register_driver(&lis3lv02d_driver);
-	if (ret < 0)
-		return ret;
-
-	pr_info("driver loaded\n");
-
-	return 0;
-}
-
-static void __exit lis3lv02d_exit_module(void)
-{
-	acpi_bus_unregister_driver(&lis3lv02d_driver);
-}
+module_acpi_driver(lis3lv02d_driver);
 
 MODULE_DESCRIPTION("Glue between LIS3LV02Dx and HP ACPI BIOS and support for disk protection LED.");
 MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek");
 MODULE_LICENSE("GPL");
-
-module_init(lis3lv02d_init_module);
-module_exit(lis3lv02d_exit_module);
-- 
1.7.10

[PATCH 09/12] ideapad: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/platform/x86/ideapad-laptop.c |   14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 4f20f8d..b469654 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -813,20 +813,8 @@ static struct acpi_driver ideapad_acpi_driver = {
 	.ops.notify = ideapad_acpi_notify,
 	.owner = THIS_MODULE,
 };
-
-static int __init ideapad_acpi_module_init(void)
-{
-	return acpi_bus_register_driver(&ideapad_acpi_driver);
-}
-
-static void __exit ideapad_acpi_module_exit(void)
-{
-	acpi_bus_unregister_driver(&ideapad_acpi_driver);
-}
+module_acpi_driver(ideapad_acpi_driver);
 
 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
 MODULE_DESCRIPTION("IdeaPad ACPI Extras");
 MODULE_LICENSE("GPL");
-
-module_init(ideapad_acpi_module_init);
-module_exit(ideapad_acpi_module_exit);
-- 
1.7.10

[PATCH 10/12] topstar-laptop: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/platform/x86/topstar-laptop.c |   22 +---------------------
 1 file changed, 1 insertion(+), 21 deletions(-)

diff --git a/drivers/platform/x86/topstar-laptop.c b/drivers/platform/x86/topstar-laptop.c
index d528daa..d727bfe 100644
--- a/drivers/platform/x86/topstar-laptop.c
+++ b/drivers/platform/x86/topstar-laptop.c
@@ -186,27 +186,7 @@ static struct acpi_driver acpi_topstar_driver = {
 		.notify = acpi_topstar_notify,
 	},
 };
-
-static int __init topstar_laptop_init(void)
-{
-	int ret;
-
-	ret = acpi_bus_register_driver(&acpi_topstar_driver);
-	if (ret < 0)
-		return ret;
-
-	pr_info("ACPI extras driver loaded\n");
-
-	return 0;
-}
-
-static void __exit topstar_laptop_exit(void)
-{
-	acpi_bus_unregister_driver(&acpi_topstar_driver);
-}
-
-module_init(topstar_laptop_init);
-module_exit(topstar_laptop_exit);
+module_acpi_driver(acpi_topstar_driver);
 
 MODULE_AUTHOR("Herton Ronaldo Krzesinski");
 MODULE_DESCRIPTION("Topstar Laptop ACPI Extras driver");
-- 
1.7.10

[PATCH 11/12] toshiba_bluetooth: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/platform/x86/toshiba_bluetooth.c |   22 +---------------------
 1 file changed, 1 insertion(+), 21 deletions(-)

diff --git a/drivers/platform/x86/toshiba_bluetooth.c b/drivers/platform/x86/toshiba_bluetooth.c
index 5fb7186..c871a35 100644
--- a/drivers/platform/x86/toshiba_bluetooth.c
+++ b/drivers/platform/x86/toshiba_bluetooth.c
@@ -116,30 +116,10 @@ static int toshiba_bt_rfkill_add(struct acpi_device *device)
 	return result;
 }
 
-static int __init toshiba_bt_rfkill_init(void)
-{
-	int result;
-
-	result = acpi_bus_register_driver(&toshiba_bt_rfkill_driver);
-	if (result < 0) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				  "Error registering driver\n"));
-		return result;
-	}
-
-	return 0;
-}
-
 static int toshiba_bt_rfkill_remove(struct acpi_device *device, int type)
 {
 	/* clean up */
 	return 0;
 }
 
-static void __exit toshiba_bt_rfkill_exit(void)
-{
-	acpi_bus_unregister_driver(&toshiba_bt_rfkill_driver);
-}
-
-module_init(toshiba_bt_rfkill_init);
-module_exit(toshiba_bt_rfkill_exit);
+module_acpi_driver(toshiba_bt_rfkill_driver);
-- 
1.7.10

[PATCH 12/12] xo15-ebook: convert to module_acpi_driver()

[Mika Westerberg]

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/platform/x86/xo15-ebook.c |   14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c
index fad153d..11a0f30 100644
--- a/drivers/platform/x86/xo15-ebook.c
+++ b/drivers/platform/x86/xo15-ebook.c
@@ -166,16 +166,4 @@ static struct acpi_driver xo15_ebook_driver = {
 		.notify = ebook_switch_notify,
 	},
 };
-
-static int __init xo15_ebook_init(void)
-{
-	return acpi_bus_register_driver(&xo15_ebook_driver);
-}
-
-static void __exit xo15_ebook_exit(void)
-{
-	acpi_bus_unregister_driver(&xo15_ebook_driver);
-}
-
-module_init(xo15_ebook_init);
-module_exit(xo15_ebook_exit);
+module_acpi_driver(xo15_ebook_driver);
-- 
1.7.10

Re: [PATCH 07/12] Input: atlas_btns - convert to module_acpi_driver()

[Dmitry Torokhov]

On Thu, Jun 28, 2012 at 01:59:26PM +0300, Mika Westerberg wrote:
> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Please feel free to merge with the rest of the series.

Thanks!

> ---
>  drivers/input/misc/atlas_btns.c |   17 +----------------
>  1 file changed, 1 insertion(+), 16 deletions(-)
> 
> diff --git a/drivers/input/misc/atlas_btns.c b/drivers/input/misc/atlas_btns.c
> index 601f737..26f1313 100644
> --- a/drivers/input/misc/atlas_btns.c
> +++ b/drivers/input/misc/atlas_btns.c
> @@ -151,22 +151,7 @@ static struct acpi_driver atlas_acpi_driver = {
>  		.remove	= atlas_acpi_button_remove,
>  	},
>  };
> -
> -static int __init atlas_acpi_init(void)
> -{
> -	if (acpi_disabled)
> -		return -ENODEV;
> -
> -	return acpi_bus_register_driver(&atlas_acpi_driver);
> -}
> -
> -static void __exit atlas_acpi_exit(void)
> -{
> -	acpi_bus_unregister_driver(&atlas_acpi_driver);
> -}
> -
> -module_init(atlas_acpi_init);
> -module_exit(atlas_acpi_exit);
> +module_acpi_driver(atlas_acpi_driver);
>  
>  MODULE_AUTHOR("Jaya Kumar");
>  MODULE_LICENSE("GPL");
> -- 
> 1.7.10
> 

-- 
Dmitry

Re: [PATCH 08/12] hp_accel: convert to module_acpi_driver()

[Éric Piel]

On 28-06-12 12:59, Mika Westerberg wrote:
> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Hello,
Looks fine from my point of view.

Reviewed-by: Éric Piel <eric.piel@tremplin-utc.net>

Éric

> ---
>   drivers/platform/x86/hp_accel.c |   25 +------------------------
>   1 file changed, 1 insertion(+), 24 deletions(-)
>
> diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c
> index 22b2dfa..7246e66 100644
> --- a/drivers/platform/x86/hp_accel.c
> +++ b/drivers/platform/x86/hp_accel.c
> @@ -381,31 +381,8 @@ static struct acpi_driver lis3lv02d_driver = {
>   		.resume  = lis3lv02d_resume,
>   	}
>   };
> -
> -static int __init lis3lv02d_init_module(void)
> -{
> -	int ret;
> -
> -	if (acpi_disabled)
> -		return -ENODEV;
> -
> -	ret = acpi_bus_register_driver(&lis3lv02d_driver);
> -	if (ret < 0)
> -		return ret;
> -
> -	pr_info("driver loaded\n");
> -
> -	return 0;
> -}
> -
> -static void __exit lis3lv02d_exit_module(void)
> -{
> -	acpi_bus_unregister_driver(&lis3lv02d_driver);
> -}
> +module_acpi_driver(lis3lv02d_driver);
>
>   MODULE_DESCRIPTION("Glue between LIS3LV02Dx and HP ACPI BIOS and support for disk protection LED.");
>   MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek");
>   MODULE_LICENSE("GPL");
> -
> -module_init(lis3lv02d_init_module);
> -module_exit(lis3lv02d_exit_module);
>

Re: [PATCH 10/12] topstar-laptop: convert to module_acpi_driver()

[Herton Ronaldo Krzesinski]

On Thu, Jun 28, 2012 at 01:59:29PM +0300, Mika Westerberg wrote:
> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
> ---
>  drivers/platform/x86/topstar-laptop.c |   22 +---------------------
>  1 file changed, 1 insertion(+), 21 deletions(-)

Acked-by: Herton R. Krzesinski <herton@canonical.com>

> 
> diff --git a/drivers/platform/x86/topstar-laptop.c b/drivers/platform/x86/topstar-laptop.c
> index d528daa..d727bfe 100644
> --- a/drivers/platform/x86/topstar-laptop.c
> +++ b/drivers/platform/x86/topstar-laptop.c
> @@ -186,27 +186,7 @@ static struct acpi_driver acpi_topstar_driver = {
>  		.notify = acpi_topstar_notify,
>  	},
>  };
> -
> -static int __init topstar_laptop_init(void)
> -{
> -	int ret;
> -
> -	ret = acpi_bus_register_driver(&acpi_topstar_driver);
> -	if (ret < 0)
> -		return ret;
> -
> -	pr_info("ACPI extras driver loaded\n");
> -
> -	return 0;
> -}
> -
> -static void __exit topstar_laptop_exit(void)
> -{
> -	acpi_bus_unregister_driver(&acpi_topstar_driver);
> -}
> -
> -module_init(topstar_laptop_init);
> -module_exit(topstar_laptop_exit);
> +module_acpi_driver(acpi_topstar_driver);
>  
>  MODULE_AUTHOR("Herton Ronaldo Krzesinski");
>  MODULE_DESCRIPTION("Topstar Laptop ACPI Extras driver");
> -- 
> 1.7.10
> 

-- 
[]'s
Herton

Re: [PATCH 09/12] ideapad: convert to module_acpi_driver()

[Ike Panhc]

On 06/28/2012 06:59 PM, Mika Westerberg wrote:
> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>

Acked-by: Ike Panhc <ike.pan@canonical.com>

> ---
>  drivers/platform/x86/ideapad-laptop.c |   14 +-------------
>  1 file changed, 1 insertion(+), 13 deletions(-)
> 
> diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
> index 4f20f8d..b469654 100644
> --- a/drivers/platform/x86/ideapad-laptop.c
> +++ b/drivers/platform/x86/ideapad-laptop.c
> @@ -813,20 +813,8 @@ static struct acpi_driver ideapad_acpi_driver = {
>  	.ops.notify = ideapad_acpi_notify,
>  	.owner = THIS_MODULE,
>  };
> -
> -static int __init ideapad_acpi_module_init(void)
> -{
> -	return acpi_bus_register_driver(&ideapad_acpi_driver);
> -}
> -
> -static void __exit ideapad_acpi_module_exit(void)
> -{
> -	acpi_bus_unregister_driver(&ideapad_acpi_driver);
> -}
> +module_acpi_driver(ideapad_acpi_driver);
>  
>  MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
>  MODULE_DESCRIPTION("IdeaPad ACPI Extras");
>  MODULE_LICENSE("GPL");
> -
> -module_init(ideapad_acpi_module_init);
> -module_exit(ideapad_acpi_module_exit);
> 

Re: [PATCH 06/12] i2c-scmi: convert to module_acpi_driver()

[Jean Delvare]

On Thu, 28 Jun 2012 13:59:25 +0300, Mika Westerberg wrote:
> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
> ---
>  drivers/i2c/busses/i2c-scmi.c |   14 +-------------
>  1 file changed, 1 insertion(+), 13 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c
> index 388cbdc..6aafa3d 100644
> --- a/drivers/i2c/busses/i2c-scmi.c
> +++ b/drivers/i2c/busses/i2c-scmi.c
> @@ -426,19 +426,7 @@ static struct acpi_driver acpi_smbus_cmi_driver = {
>  		.remove = acpi_smbus_cmi_remove,
>  	},
>  };
> -
> -static int __init acpi_smbus_cmi_init(void)
> -{
> -	return acpi_bus_register_driver(&acpi_smbus_cmi_driver);
> -}
> -
> -static void __exit acpi_smbus_cmi_exit(void)
> -{
> -	acpi_bus_unregister_driver(&acpi_smbus_cmi_driver);
> -}
> -
> -module_init(acpi_smbus_cmi_init);
> -module_exit(acpi_smbus_cmi_exit);
> +module_acpi_driver(acpi_smbus_cmi_driver);
>  
>  MODULE_LICENSE("GPL");
>  MODULE_AUTHOR("Crane Cai <crane.cai@amd.com>");

Acked-by: Jean Delvare <khali@linux-fr.org>

-- 
Jean Delvare

Re: [PATCH 00/12] ACPI: add module_acpi_driver() and convert drivers to it

[Mika Westerberg]

On Thu, Jun 28, 2012 at 01:59:19PM +0300, Mika Westerberg wrote:
> This is similar than what is done for other busses before (PCI, I2C, SPI,
> platform). It reduces a lot of unnecessary boilerplate code from modules.
> 
> We also remove following redundant check on few drivers:
> 
> 	if (acpi_disabled)
> 		return -ENODEV;
> 
> as this same check is already done at the beginning of
> acpi_bus_register_driver().
> 
> I think these should all go via ACPI tree because they all depend on the
> first patch which adds the macro to the ACPI subsystem.

Len, do you have any comments? Could you consider merging these patches?

Thanks.