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Re: [PATCH 10/11] acpi: Export acpi_bus_type

From "Rafael J. Wysocki" <rjw@rjwysocki.net>
Newsgroups linux.kernel
Subject Re: [PATCH 10/11] acpi: Export acpi_bus_type
Date 2016-01-15 16:00 +0100
Message-ID <qRe14-7zo-27@gated-at.bofh.it> (permalink)
References <qQJJE-37H-11@gated-at.bofh.it> <qQJJE-37H-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thursday, January 14, 2016 11:46:46 AM ankitprasad.r.sharma@intel.com wrote:
> From: Ankitprasad Sharma <ankitprasad.r.sharma@intel.com>
> 
> Some modules, like i915.ko, needs to detect when certain ACPI features
> are active inorder to prevent corruption on contended resources.
> In particular, use of BIOS RapidStart Technology may corrupt the contents
> of the reserved graphics memory, due to unalarmed hibernation. In which
> case i915.ko cannot assume that it (reserved gfx memory) remains
> unmodified and must recreate teh contents and importantly not use it to
> store unrecoverable user data.
> 
> Signed-off-by: Ankitprasad Sharma <ankitprasad.r.sharma@intel.com>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Len Brown <lenb@kernel.org>
> Cc: linux-acpi@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---
>  drivers/acpi/bus.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
> index a212cef..69509c7 100644
> --- a/drivers/acpi/bus.c
> +++ b/drivers/acpi/bus.c
> @@ -814,6 +814,7 @@ struct bus_type acpi_bus_type = {
>  	.remove		= acpi_device_remove,
>  	.uevent		= acpi_device_uevent,
>  };
> +EXPORT_SYMBOL_GPL(acpi_bus_type);
>  
>  /* --------------------------------------------------------------------------
>                               Initialization/Cleanup
> 

No.

I see no reason whatsoever for doing this.

Thanks,
Rafael

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[PATCH 10/11] acpi: Export acpi_bus_type ankitprasad.r.sharma@intel.com - 2016-01-14 07:40 +0100
  Re: [PATCH 10/11] acpi: Export acpi_bus_type "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-01-15 16:00 +0100
    Re: [PATCH 10/11] acpi: Export acpi_bus_type Ankitprasad Sharma <ankitprasad.r.sharma@intel.com> - 2016-01-18 10:30 +0100
      Re: [PATCH 10/11] acpi: Export acpi_bus_type "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-01-18 16:00 +0100
        Re: [PATCH 10/11] acpi: Export acpi_bus_type Lukas Wunner <lukas@wunner.de> - 2016-01-18 19:40 +0100
          Re: [PATCH 10/11] acpi: Export acpi_bus_type Ankitprasad Sharma <ankitprasad.r.sharma@intel.com> - 2016-01-19 09:40 +0100
        Re: [PATCH 10/11] acpi: Export acpi_bus_type "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-01-18 23:30 +0100
          Re: [PATCH 10/11] acpi: Export acpi_bus_type Lukas Wunner <lukas@wunner.de> - 2016-01-18 23:40 +0100
            Re: [PATCH 10/11] acpi: Export acpi_bus_type "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-01-18 23:50 +0100
              Re: [PATCH 10/11] acpi: Export acpi_bus_type Lukas Wunner <lukas@wunner.de> - 2016-01-19 00:10 +0100
                Re: [PATCH 10/11] acpi: Export acpi_bus_type "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-01-19 01:00 +0100
                Re: [PATCH 10/11] acpi: Export acpi_bus_type Lukas Wunner <lukas@wunner.de> - 2016-01-19 17:40 +0100
                Re: [PATCH 10/11] acpi: Export acpi_bus_type "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-01-19 23:10 +0100

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