Re: [PATCH v3 6/9] ACPI: move _OSI support functions to allow arch-dependent implementation
From: Rafael J. Wysocki
Date: Wed Mar 04 2015 - 17:45:56 EST
On Tuesday, February 24, 2015 05:36:22 PM al.stone@xxxxxxxxxx wrote:
> From: Al Stone <al.stone@xxxxxxxxxx>
>
> Having moved the _OSI callback function needed by ACPICA from
> drivers/acpi/osl.c to drivers/acpi/osi.c, we now move all the
> remaining _OSI support functions to osi.c.
>
> This patch is much larger than I had wanted it to be; several of the
> functions that implemented acpi_osi* command line options, or did the
> set up of the interfaces to be provided by _OSI, shared a static struct.
> Hence, I ended up moving a bunch of code at once rather than perhaps a
> function at a time.
>
> With this patch, all the _OSI-associated code has now been moved
> to osi.c, and we next change the build so that we can make the
> _OSI implementation arch-dependent.
>
> There is no functional change.
>
> Signed-off-by: Al Stone <al.stone@xxxxxxxxxx>
> ---
> drivers/acpi/osi.c | 152 ++++++++++++++++++++++++++++++++++++++++-
> drivers/acpi/osl.c | 187 ---------------------------------------------------
> include/linux/acpi.h | 5 +-
> 3 files changed, 154 insertions(+), 190 deletions(-)
>
> diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
> index f23aa70..9943b7a 100644
> --- a/drivers/acpi/osi.c
> +++ b/drivers/acpi/osi.c
> @@ -30,6 +30,8 @@ ACPI_MODULE_NAME("osi");
>
> #define PREFIX "ACPI: "
>
> +static void __init acpi_osi_setup_late(void);
> +
> /*
> * The story of _OSI(Linux)
> *
> @@ -68,10 +70,14 @@ static struct osi_linux {
> unsigned int dmi:1;
> unsigned int cmdline:1;
> unsigned int default_disabling:1;
> -} osi_linux = {0, 0, 0, 0};
> + unsigned int interfaces_added:1;
> +} osi_linux = {0, 0, 0, 0, 0};
>
> u32 acpi_osi_handler(acpi_string interface, u32 supported)
> {
> + if (!osi_linux.interfaces_added)
> + acpi_osi_setup_late();
> +
This wasn't there in the old code.
Please don't mix moving code around with adding new things to it.
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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