RE: [PATCH 2/2] tboot: Add return values for tboot_sleep

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Acked-by: Joseph Cihula <joseph.cihula@xxxxxxxxx>

> -----Original Message-----
> From: Konrad Rzeszutek Wilk [mailto:konrad.wilk@xxxxxxxxxx]
> Sent: Saturday, March 10, 2012 10:52 AM
> To: linux-kernel@xxxxxxxxxxxxxxx; x86@xxxxxxxxxx; tglx@xxxxxxxxxxxxx; mingo@xxxxxxxxxx;
> hpa@xxxxxxxxx; linux-acpi@xxxxxxxxxxxxxxx; lenb@xxxxxxxxxx
> Cc: rjw@xxxxxxx; Cihula, Joseph; Konrad Rzeszutek Wilk
> Subject: [PATCH 2/2] tboot: Add return values for tboot_sleep
> 
> . as appropiately. As tboot_sleep now returns values.
> remove tboot_sleep_wrapper.
> 
> Suggested-by: "Rafael J. Wysocki" <rjw@xxxxxxx>
> Acked-by: Joseph Cihula <joseph.cihula@xxxxxxxxx>
> [v1: Return -1/0/+1 instead of ACPI_xx values]
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> ---
>  arch/x86/kernel/tboot.c |   13 ++++---------
>  1 files changed, 4 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c index 1a4ab7d..6410744 100644
> --- a/arch/x86/kernel/tboot.c
> +++ b/arch/x86/kernel/tboot.c
> @@ -272,7 +272,7 @@ static void tboot_copy_fadt(const struct acpi_table_fadt *fadt)
>  		offsetof(struct acpi_table_facs, firmware_waking_vector);  }
> 
> -void tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control)
> +static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32
> +pm1b_control)
>  {
>  	static u32 acpi_shutdown_map[ACPI_S_STATE_COUNT] = {
>  		/* S0,1,2: */ -1, -1, -1,
> @@ -281,7 +281,7 @@ void tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control)
>  		/* S5: */ TB_SHUTDOWN_S5 };
> 
>  	if (!tboot_enabled())
> -		return;
> +		return 0;
> 
>  	tboot_copy_fadt(&acpi_gbl_FADT);
>  	tboot->acpi_sinfo.pm1a_cnt_val = pm1a_control; @@ -292,15 +292,10 @@ void tboot_sleep(u8
> sleep_state, u32 pm1a_control, u32 pm1b_control)
>  	if (sleep_state >= ACPI_S_STATE_COUNT ||
>  	    acpi_shutdown_map[sleep_state] == -1) {
>  		pr_warning("unsupported sleep state 0x%x\n", sleep_state);
> -		return;
> +		return -1;
>  	}
> 
>  	tboot_shutdown(acpi_shutdown_map[sleep_state]);
> -}
> -static int tboot_sleep_wrapper(u8 sleep_state, u32 pm1a_control,
> -			       u32 pm1b_control)
> -{
> -	tboot_sleep(sleep_state, pm1a_control, pm1b_control);
>  	return 0;
>  }
> 
> @@ -352,7 +347,7 @@ static __init int tboot_late_init(void)
>  	atomic_set(&ap_wfs_count, 0);
>  	register_hotcpu_notifier(&tboot_cpu_notifier);
> 
> -	acpi_os_set_prepare_sleep(&tboot_sleep_wrapper);
> +	acpi_os_set_prepare_sleep(&tboot_sleep);
>  	return 0;
>  }
> 
> --
> 1.7.7.5

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