Subject: [PATCH 6/9] arm64: Add new routine local_disable

From: [email-masked] (Catalin Marinas)
Date: Tue, 26 Aug 2014 17:04:43 +0100

On Fri, Aug 22, 2014 at 08:49:16PM +0100, Geoff Levand wrote:
> Add the new arm64 routine local_disable() to allow the masking of several DAIF
> flags in one operation.  Currently, we only have routines to mask individual
> flags, and to mask several flags multiple calls to daifset are required.
> 
> Signed-off-by: Geoff Levand <[email-masked]>
> ---
>  arch/arm64/include/asm/irqflags.h | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/arch/arm64/include/asm/irqflags.h b/arch/arm64/include/asm/irqflags.h
> index 11cc941..28521d4 100644
> --- a/arch/arm64/include/asm/irqflags.h
> +++ b/arch/arm64/include/asm/irqflags.h
> @@ -113,5 +113,18 @@ static inline int arch_irqs_disabled_flags(unsigned long flags)
>  #define local_dbg_enable()	asm("msr	daifclr, #8" : : : "memory")
>  #define local_dbg_disable()	asm("msr	daifset, #8" : : : "memory")
>  
> +enum daif_flag {
> +	DAIF_FIQ   = (1UL << 6),
> +	DAIF_IRQ   = (1UL << 7),
> +	DAIF_ASYNC = (1UL << 8),
> +	DAIF_DBG   = (1UL << 9),
> +	DAIF_ALL   = (0xffUL << 6),
> +};
> +
> +static inline void local_disable(unsigned long daif_flags)
> +{
> +	arch_local_irq_restore(daif_flags | arch_local_save_flags());
> +}

Who's using this function? I don't see any patch in this series calling
it.

-- 
Catalin