[v1] platform: x86: ACPI: Get rid of ACPICA message printing
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Message ID 2074665.VPHYfYaQb6@kreacher
State New, archived
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Series
  • [v1] platform: x86: ACPI: Get rid of ACPICA message printing
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Commit Message

Rafael J. Wysocki Feb. 24, 2021, 6:41 p.m. UTC
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

A few x86 platform drivers use ACPI_DEBUG_PRINT() or ACPI_EXCEPTION()
for printing messages, but that is questionable, because those macros
belong to ACPICA and they should not be used elsewhere.  In addition,
ACPI_DEBUG_PRINT() requires special enabling to allow it to actually
print the message, which is a nuisance, and the _COMPONENT symbol
generally needed for that is not defined in any of the files in
question.

For this reason, replace the ACPI_DEBUG_PRINT() in lg-laptop.c with
pr_debug() and the one in xo15-ebook.c with acpi_handle_debug()
(with the additional benefit that the source object can be identified
more easily after this change), and replace the ACPI_EXCEPTION() in
acer-wmi.c with pr_warn().

Also drop the ACPI_MODULE_NAME() definitions that are only used by
the ACPICA message printing macros from those files and from wmi.c
and surfacepro3_button.c (while at it).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/surface/surfacepro3_button.c |    2 --
 drivers/platform/x86/acer-wmi.c               |    4 ++--
 drivers/platform/x86/lg-laptop.c              |    2 +-
 drivers/platform/x86/wmi.c                    |    1 -
 drivers/platform/x86/xo15-ebook.c             |    6 ++----
 5 files changed, 5 insertions(+), 10 deletions(-)

Comments

Hans de Goede Feb. 24, 2021, 7 p.m. UTC | #1
Hi Rafael,

On 2/24/21 7:41 PM, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> 
> A few x86 platform drivers use ACPI_DEBUG_PRINT() or ACPI_EXCEPTION()
> for printing messages, but that is questionable, because those macros
> belong to ACPICA and they should not be used elsewhere.  In addition,
> ACPI_DEBUG_PRINT() requires special enabling to allow it to actually
> print the message, which is a nuisance, and the _COMPONENT symbol
> generally needed for that is not defined in any of the files in
> question.
> 
> For this reason, replace the ACPI_DEBUG_PRINT() in lg-laptop.c with
> pr_debug() and the one in xo15-ebook.c with acpi_handle_debug()
> (with the additional benefit that the source object can be identified
> more easily after this change), and replace the ACPI_EXCEPTION() in
> acer-wmi.c with pr_warn().
> 
> Also drop the ACPI_MODULE_NAME() definitions that are only used by
> the ACPICA message printing macros from those files and from wmi.c
> and surfacepro3_button.c (while at it).
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Thank you for your patch for this.

This looks good to me, except that I already fixed the acer-wmi.c case
a couple of weeks ago, and that fiox was merged into Linus' tree already:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef14f0e82c9b225ae19476fa5bed89d55b2a96d5

I can drop the acer-wmi.c chunks when I merge this, so there is no
need to send out a new version.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>

Regards,

Hans



> ---
>  drivers/platform/surface/surfacepro3_button.c |    2 --
>  drivers/platform/x86/acer-wmi.c               |    4 ++--
>  drivers/platform/x86/lg-laptop.c              |    2 +-
>  drivers/platform/x86/wmi.c                    |    1 -
>  drivers/platform/x86/xo15-ebook.c             |    6 ++----
>  5 files changed, 5 insertions(+), 10 deletions(-)
> 
> Index: linux-pm/drivers/platform/x86/lg-laptop.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/x86/lg-laptop.c
> +++ linux-pm/drivers/platform/x86/lg-laptop.c
> @@ -678,7 +678,7 @@ static int __init acpi_init(void)
>  
>  	result = acpi_bus_register_driver(&acpi_driver);
>  	if (result < 0) {
> -		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error registering driver\n"));
> +		pr_debug("Error registering driver\n");
>  		return -ENODEV;
>  	}
>  
> Index: linux-pm/drivers/platform/x86/xo15-ebook.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/x86/xo15-ebook.c
> +++ linux-pm/drivers/platform/x86/xo15-ebook.c
> @@ -26,8 +26,6 @@
>  #define XO15_EBOOK_HID			"XO15EBK"
>  #define XO15_EBOOK_DEVICE_NAME		"EBook Switch"
>  
> -ACPI_MODULE_NAME(MODULE_NAME);
> -
>  MODULE_DESCRIPTION("OLPC XO-1.5 ebook switch driver");
>  MODULE_LICENSE("GPL");
>  
> @@ -66,8 +64,8 @@ static void ebook_switch_notify(struct a
>  		ebook_send_state(device);
>  		break;
>  	default:
> -		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> -				  "Unsupported event [0x%x]\n", event));
> +		acpi_handle_debug(device->handle,
> +				  "Unsupported event [0x%x]\n", event);
>  		break;
>  	}
>  }
> Index: linux-pm/drivers/platform/x86/acer-wmi.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/x86/acer-wmi.c
> +++ linux-pm/drivers/platform/x86/acer-wmi.c
> @@ -30,7 +30,6 @@
>  #include <linux/input/sparse-keymap.h>
>  #include <acpi/video.h>
>  
> -ACPI_MODULE_NAME(KBUILD_MODNAME);
>  MODULE_AUTHOR("Carlos Corbacho");
>  MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
>  MODULE_LICENSE("GPL");
> @@ -1605,7 +1604,8 @@ static void acer_kbd_dock_get_initial_st
>  
>  	status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
>  	if (ACPI_FAILURE(status)) {
> -		ACPI_EXCEPTION((AE_INFO, status, "Error getting keyboard-dock initial status"));
> +		pr_warn("Error getting keyboard-dock initial status: %s\n",
> +			acpi_format_exception(status));
>  		return;
>  	}
>  
> Index: linux-pm/drivers/platform/surface/surfacepro3_button.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/surface/surfacepro3_button.c
> +++ linux-pm/drivers/platform/surface/surfacepro3_button.c
> @@ -40,8 +40,6 @@ static const guid_t MSHW0040_DSM_UUID =
>  #define SURFACE_BUTTON_NOTIFY_PRESS_VOLUME_DOWN		0xc2
>  #define SURFACE_BUTTON_NOTIFY_RELEASE_VOLUME_DOWN	0xc3
>  
> -ACPI_MODULE_NAME("surface pro 3 button");
> -
>  MODULE_AUTHOR("Chen Yu");
>  MODULE_DESCRIPTION("Surface Pro3 Button Driver");
>  MODULE_LICENSE("GPL v2");
> Index: linux-pm/drivers/platform/x86/wmi.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/x86/wmi.c
> +++ linux-pm/drivers/platform/x86/wmi.c
> @@ -32,7 +32,6 @@
>  #include <linux/fs.h>
>  #include <uapi/linux/wmi.h>
>  
> -ACPI_MODULE_NAME("wmi");
>  MODULE_AUTHOR("Carlos Corbacho");
>  MODULE_DESCRIPTION("ACPI-WMI Mapping Driver");
>  MODULE_LICENSE("GPL");
> 
> 
>
Rafael J. Wysocki Feb. 25, 2021, 3:01 p.m. UTC | #2
On Wed, Feb 24, 2021 at 8:03 PM Hans de Goede <hdegoede@redhat.com> wrote:
>
> Hi Rafael,
>
> On 2/24/21 7:41 PM, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> >
> > A few x86 platform drivers use ACPI_DEBUG_PRINT() or ACPI_EXCEPTION()
> > for printing messages, but that is questionable, because those macros
> > belong to ACPICA and they should not be used elsewhere.  In addition,
> > ACPI_DEBUG_PRINT() requires special enabling to allow it to actually
> > print the message, which is a nuisance, and the _COMPONENT symbol
> > generally needed for that is not defined in any of the files in
> > question.
> >
> > For this reason, replace the ACPI_DEBUG_PRINT() in lg-laptop.c with
> > pr_debug() and the one in xo15-ebook.c with acpi_handle_debug()
> > (with the additional benefit that the source object can be identified
> > more easily after this change), and replace the ACPI_EXCEPTION() in
> > acer-wmi.c with pr_warn().
> >
> > Also drop the ACPI_MODULE_NAME() definitions that are only used by
> > the ACPICA message printing macros from those files and from wmi.c
> > and surfacepro3_button.c (while at it).
> >
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> Thank you for your patch for this.
>
> This looks good to me, except that I already fixed the acer-wmi.c case
> a couple of weeks ago, and that fiox was merged into Linus' tree already:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef14f0e82c9b225ae19476fa5bed89d55b2a96d5
>
> I can drop the acer-wmi.c chunks when I merge this, so there is no
> need to send out a new version.

OK, thanks!

I will be assuming that you will pick up this patch and adjust it as needed.

> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
>
> Regards,
>
> Hans
>
>
>
> > ---
> >  drivers/platform/surface/surfacepro3_button.c |    2 --
> >  drivers/platform/x86/acer-wmi.c               |    4 ++--
> >  drivers/platform/x86/lg-laptop.c              |    2 +-
> >  drivers/platform/x86/wmi.c                    |    1 -
> >  drivers/platform/x86/xo15-ebook.c             |    6 ++----
> >  5 files changed, 5 insertions(+), 10 deletions(-)
> >
> > Index: linux-pm/drivers/platform/x86/lg-laptop.c
> > ===================================================================
> > --- linux-pm.orig/drivers/platform/x86/lg-laptop.c
> > +++ linux-pm/drivers/platform/x86/lg-laptop.c
> > @@ -678,7 +678,7 @@ static int __init acpi_init(void)
> >
> >       result = acpi_bus_register_driver(&acpi_driver);
> >       if (result < 0) {
> > -             ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error registering driver\n"));
> > +             pr_debug("Error registering driver\n");
> >               return -ENODEV;
> >       }
> >
> > Index: linux-pm/drivers/platform/x86/xo15-ebook.c
> > ===================================================================
> > --- linux-pm.orig/drivers/platform/x86/xo15-ebook.c
> > +++ linux-pm/drivers/platform/x86/xo15-ebook.c
> > @@ -26,8 +26,6 @@
> >  #define XO15_EBOOK_HID                       "XO15EBK"
> >  #define XO15_EBOOK_DEVICE_NAME               "EBook Switch"
> >
> > -ACPI_MODULE_NAME(MODULE_NAME);
> > -
> >  MODULE_DESCRIPTION("OLPC XO-1.5 ebook switch driver");
> >  MODULE_LICENSE("GPL");
> >
> > @@ -66,8 +64,8 @@ static void ebook_switch_notify(struct a
> >               ebook_send_state(device);
> >               break;
> >       default:
> > -             ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> > -                               "Unsupported event [0x%x]\n", event));
> > +             acpi_handle_debug(device->handle,
> > +                               "Unsupported event [0x%x]\n", event);
> >               break;
> >       }
> >  }
> > Index: linux-pm/drivers/platform/x86/acer-wmi.c
> > ===================================================================
> > --- linux-pm.orig/drivers/platform/x86/acer-wmi.c
> > +++ linux-pm/drivers/platform/x86/acer-wmi.c
> > @@ -30,7 +30,6 @@
> >  #include <linux/input/sparse-keymap.h>
> >  #include <acpi/video.h>
> >
> > -ACPI_MODULE_NAME(KBUILD_MODNAME);
> >  MODULE_AUTHOR("Carlos Corbacho");
> >  MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
> >  MODULE_LICENSE("GPL");
> > @@ -1605,7 +1604,8 @@ static void acer_kbd_dock_get_initial_st
> >
> >       status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
> >       if (ACPI_FAILURE(status)) {
> > -             ACPI_EXCEPTION((AE_INFO, status, "Error getting keyboard-dock initial status"));
> > +             pr_warn("Error getting keyboard-dock initial status: %s\n",
> > +                     acpi_format_exception(status));
> >               return;
> >       }
> >
> > Index: linux-pm/drivers/platform/surface/surfacepro3_button.c
> > ===================================================================
> > --- linux-pm.orig/drivers/platform/surface/surfacepro3_button.c
> > +++ linux-pm/drivers/platform/surface/surfacepro3_button.c
> > @@ -40,8 +40,6 @@ static const guid_t MSHW0040_DSM_UUID =
> >  #define SURFACE_BUTTON_NOTIFY_PRESS_VOLUME_DOWN              0xc2
> >  #define SURFACE_BUTTON_NOTIFY_RELEASE_VOLUME_DOWN    0xc3
> >
> > -ACPI_MODULE_NAME("surface pro 3 button");
> > -
> >  MODULE_AUTHOR("Chen Yu");
> >  MODULE_DESCRIPTION("Surface Pro3 Button Driver");
> >  MODULE_LICENSE("GPL v2");
> > Index: linux-pm/drivers/platform/x86/wmi.c
> > ===================================================================
> > --- linux-pm.orig/drivers/platform/x86/wmi.c
> > +++ linux-pm/drivers/platform/x86/wmi.c
> > @@ -32,7 +32,6 @@
> >  #include <linux/fs.h>
> >  #include <uapi/linux/wmi.h>
> >
> > -ACPI_MODULE_NAME("wmi");
> >  MODULE_AUTHOR("Carlos Corbacho");
> >  MODULE_DESCRIPTION("ACPI-WMI Mapping Driver");
> >  MODULE_LICENSE("GPL");
> >
> >
> >
>
Hans de Goede March 4, 2021, 2:11 p.m. UTC | #3
Hi,

On 2/24/21 7:41 PM, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> 
> A few x86 platform drivers use ACPI_DEBUG_PRINT() or ACPI_EXCEPTION()
> for printing messages, but that is questionable, because those macros
> belong to ACPICA and they should not be used elsewhere.  In addition,
> ACPI_DEBUG_PRINT() requires special enabling to allow it to actually
> print the message, which is a nuisance, and the _COMPONENT symbol
> generally needed for that is not defined in any of the files in
> question.
> 
> For this reason, replace the ACPI_DEBUG_PRINT() in lg-laptop.c with
> pr_debug() and the one in xo15-ebook.c with acpi_handle_debug()
> (with the additional benefit that the source object can be identified
> more easily after this change), and replace the ACPI_EXCEPTION() in
> acer-wmi.c with pr_warn().
> 
> Also drop the ACPI_MODULE_NAME() definitions that are only used by
> the ACPICA message printing macros from those files and from wmi.c
> and surfacepro3_button.c (while at it).
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Thank you.

I've merged this into my review-hans branch now, minus the
acer-wmi.c changes because a similar patch was already merged for those.

Regards,

Hans



> ---
>  drivers/platform/surface/surfacepro3_button.c |    2 --
>  drivers/platform/x86/acer-wmi.c               |    4 ++--
>  drivers/platform/x86/lg-laptop.c              |    2 +-
>  drivers/platform/x86/wmi.c                    |    1 -
>  drivers/platform/x86/xo15-ebook.c             |    6 ++----
>  5 files changed, 5 insertions(+), 10 deletions(-)
> 
> Index: linux-pm/drivers/platform/x86/lg-laptop.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/x86/lg-laptop.c
> +++ linux-pm/drivers/platform/x86/lg-laptop.c
> @@ -678,7 +678,7 @@ static int __init acpi_init(void)
>  
>  	result = acpi_bus_register_driver(&acpi_driver);
>  	if (result < 0) {
> -		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error registering driver\n"));
> +		pr_debug("Error registering driver\n");
>  		return -ENODEV;
>  	}
>  
> Index: linux-pm/drivers/platform/x86/xo15-ebook.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/x86/xo15-ebook.c
> +++ linux-pm/drivers/platform/x86/xo15-ebook.c
> @@ -26,8 +26,6 @@
>  #define XO15_EBOOK_HID			"XO15EBK"
>  #define XO15_EBOOK_DEVICE_NAME		"EBook Switch"
>  
> -ACPI_MODULE_NAME(MODULE_NAME);
> -
>  MODULE_DESCRIPTION("OLPC XO-1.5 ebook switch driver");
>  MODULE_LICENSE("GPL");
>  
> @@ -66,8 +64,8 @@ static void ebook_switch_notify(struct a
>  		ebook_send_state(device);
>  		break;
>  	default:
> -		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
> -				  "Unsupported event [0x%x]\n", event));
> +		acpi_handle_debug(device->handle,
> +				  "Unsupported event [0x%x]\n", event);
>  		break;
>  	}
>  }
> Index: linux-pm/drivers/platform/x86/acer-wmi.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/x86/acer-wmi.c
> +++ linux-pm/drivers/platform/x86/acer-wmi.c
> @@ -30,7 +30,6 @@
>  #include <linux/input/sparse-keymap.h>
>  #include <acpi/video.h>
>  
> -ACPI_MODULE_NAME(KBUILD_MODNAME);
>  MODULE_AUTHOR("Carlos Corbacho");
>  MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
>  MODULE_LICENSE("GPL");
> @@ -1605,7 +1604,8 @@ static void acer_kbd_dock_get_initial_st
>  
>  	status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
>  	if (ACPI_FAILURE(status)) {
> -		ACPI_EXCEPTION((AE_INFO, status, "Error getting keyboard-dock initial status"));
> +		pr_warn("Error getting keyboard-dock initial status: %s\n",
> +			acpi_format_exception(status));
>  		return;
>  	}
>  
> Index: linux-pm/drivers/platform/surface/surfacepro3_button.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/surface/surfacepro3_button.c
> +++ linux-pm/drivers/platform/surface/surfacepro3_button.c
> @@ -40,8 +40,6 @@ static const guid_t MSHW0040_DSM_UUID =
>  #define SURFACE_BUTTON_NOTIFY_PRESS_VOLUME_DOWN		0xc2
>  #define SURFACE_BUTTON_NOTIFY_RELEASE_VOLUME_DOWN	0xc3
>  
> -ACPI_MODULE_NAME("surface pro 3 button");
> -
>  MODULE_AUTHOR("Chen Yu");
>  MODULE_DESCRIPTION("Surface Pro3 Button Driver");
>  MODULE_LICENSE("GPL v2");
> Index: linux-pm/drivers/platform/x86/wmi.c
> ===================================================================
> --- linux-pm.orig/drivers/platform/x86/wmi.c
> +++ linux-pm/drivers/platform/x86/wmi.c
> @@ -32,7 +32,6 @@
>  #include <linux/fs.h>
>  #include <uapi/linux/wmi.h>
>  
> -ACPI_MODULE_NAME("wmi");
>  MODULE_AUTHOR("Carlos Corbacho");
>  MODULE_DESCRIPTION("ACPI-WMI Mapping Driver");
>  MODULE_LICENSE("GPL");
> 
> 
>
Rafael J. Wysocki March 4, 2021, 2:15 p.m. UTC | #4
On Thu, Mar 4, 2021 at 3:14 PM Hans de Goede <hdegoede@redhat.com> wrote:
>
> Hi,
>
> On 2/24/21 7:41 PM, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> >
> > A few x86 platform drivers use ACPI_DEBUG_PRINT() or ACPI_EXCEPTION()
> > for printing messages, but that is questionable, because those macros
> > belong to ACPICA and they should not be used elsewhere.  In addition,
> > ACPI_DEBUG_PRINT() requires special enabling to allow it to actually
> > print the message, which is a nuisance, and the _COMPONENT symbol
> > generally needed for that is not defined in any of the files in
> > question.
> >
> > For this reason, replace the ACPI_DEBUG_PRINT() in lg-laptop.c with
> > pr_debug() and the one in xo15-ebook.c with acpi_handle_debug()
> > (with the additional benefit that the source object can be identified
> > more easily after this change), and replace the ACPI_EXCEPTION() in
> > acer-wmi.c with pr_warn().
> >
> > Also drop the ACPI_MODULE_NAME() definitions that are only used by
> > the ACPICA message printing macros from those files and from wmi.c
> > and surfacepro3_button.c (while at it).
> >
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> Thank you.
>
> I've merged this into my review-hans branch now, minus the
> acer-wmi.c changes because a similar patch was already merged for those.

Thanks!

Patch
diff mbox series

Index: linux-pm/drivers/platform/x86/lg-laptop.c
===================================================================
--- linux-pm.orig/drivers/platform/x86/lg-laptop.c
+++ linux-pm/drivers/platform/x86/lg-laptop.c
@@ -678,7 +678,7 @@  static int __init acpi_init(void)
 
 	result = acpi_bus_register_driver(&acpi_driver);
 	if (result < 0) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error registering driver\n"));
+		pr_debug("Error registering driver\n");
 		return -ENODEV;
 	}
 
Index: linux-pm/drivers/platform/x86/xo15-ebook.c
===================================================================
--- linux-pm.orig/drivers/platform/x86/xo15-ebook.c
+++ linux-pm/drivers/platform/x86/xo15-ebook.c
@@ -26,8 +26,6 @@ 
 #define XO15_EBOOK_HID			"XO15EBK"
 #define XO15_EBOOK_DEVICE_NAME		"EBook Switch"
 
-ACPI_MODULE_NAME(MODULE_NAME);
-
 MODULE_DESCRIPTION("OLPC XO-1.5 ebook switch driver");
 MODULE_LICENSE("GPL");
 
@@ -66,8 +64,8 @@  static void ebook_switch_notify(struct a
 		ebook_send_state(device);
 		break;
 	default:
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Unsupported event [0x%x]\n", event));
+		acpi_handle_debug(device->handle,
+				  "Unsupported event [0x%x]\n", event);
 		break;
 	}
 }
Index: linux-pm/drivers/platform/x86/acer-wmi.c
===================================================================
--- linux-pm.orig/drivers/platform/x86/acer-wmi.c
+++ linux-pm/drivers/platform/x86/acer-wmi.c
@@ -30,7 +30,6 @@ 
 #include <linux/input/sparse-keymap.h>
 #include <acpi/video.h>
 
-ACPI_MODULE_NAME(KBUILD_MODNAME);
 MODULE_AUTHOR("Carlos Corbacho");
 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
 MODULE_LICENSE("GPL");
@@ -1605,7 +1604,8 @@  static void acer_kbd_dock_get_initial_st
 
 	status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
 	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Error getting keyboard-dock initial status"));
+		pr_warn("Error getting keyboard-dock initial status: %s\n",
+			acpi_format_exception(status));
 		return;
 	}
 
Index: linux-pm/drivers/platform/surface/surfacepro3_button.c
===================================================================
--- linux-pm.orig/drivers/platform/surface/surfacepro3_button.c
+++ linux-pm/drivers/platform/surface/surfacepro3_button.c
@@ -40,8 +40,6 @@  static const guid_t MSHW0040_DSM_UUID =
 #define SURFACE_BUTTON_NOTIFY_PRESS_VOLUME_DOWN		0xc2
 #define SURFACE_BUTTON_NOTIFY_RELEASE_VOLUME_DOWN	0xc3
 
-ACPI_MODULE_NAME("surface pro 3 button");
-
 MODULE_AUTHOR("Chen Yu");
 MODULE_DESCRIPTION("Surface Pro3 Button Driver");
 MODULE_LICENSE("GPL v2");
Index: linux-pm/drivers/platform/x86/wmi.c
===================================================================
--- linux-pm.orig/drivers/platform/x86/wmi.c
+++ linux-pm/drivers/platform/x86/wmi.c
@@ -32,7 +32,6 @@ 
 #include <linux/fs.h>
 #include <uapi/linux/wmi.h>
 
-ACPI_MODULE_NAME("wmi");
 MODULE_AUTHOR("Carlos Corbacho");
 MODULE_DESCRIPTION("ACPI-WMI Mapping Driver");
 MODULE_LICENSE("GPL");