linux-kernel - RE: [PATCH] ACPICA: use designated initializers

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Date:   Mon, 19 Dec 2016 06:06:21 +0000
From:   "Zheng, Lv" <lv.zheng@...el.com>
To:     Kees Cook <keescook@...omium.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "Moore, Robert" <robert.moore@...el.com>,
        "Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
        Len Brown <lenb@...nel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "devel@...ica.org" <devel@...ica.org>
Subject: RE: [PATCH] ACPICA: use designated initializers

Hi,

> From: Kees Cook [mailto:keescook@...omium.org]
> Subject: [PATCH] ACPICA: use designated initializers
> 
> Prepare to mark sensitive kernel structures for randomization by making
> sure they're using designated initializers. These were identified during
> allyesconfig builds of x86, arm, and arm64, with most initializer fixes
> extracted from grsecurity.

This commit is not suitable for ACPICA upstream.
It's not portable. Please drop.

Thanks
Lv

> 
> Signed-off-by: Kees Cook <keescook@...omium.org>
> ---
>  drivers/acpi/acpica/hwxfsleep.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
> index f76e0eab32b8..25cd5c66e102 100644
> --- a/drivers/acpi/acpica/hwxfsleep.c
> +++ b/drivers/acpi/acpica/hwxfsleep.c
> @@ -70,11 +70,12 @@ static acpi_status acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
>  /* Legacy functions are optional, based upon ACPI_REDUCED_HARDWARE */
> 
>  static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
> -	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
> -	 acpi_hw_extended_sleep},
> -	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
> -	 acpi_hw_extended_wake_prep},
> -	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake), acpi_hw_extended_wake}
> +	{ .legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
> +	  .extended_function = acpi_hw_extended_sleep },
> +	{ .legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
> +	  .extended_function = acpi_hw_extended_wake_prep },
> +	{ .legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake),
> +	  .extended_function = acpi_hw_extended_wake }
>  };
> 
>  /*
> --
> 2.7.4
> 
> 
> --
> Kees Cook
> Nexus Security