linux-kernel - Re: [PATCH] arm64: mm: remove unused functions and variable protoypes

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Date:	Wed, 25 Feb 2015 11:10:42 +0000
From:	Will Deacon <will.deacon@....com>
To:	Yingjoe Chen <yingjoe.chen@...iatek.com>
Cc:	Catalin Marinas <Catalin.Marinas@....com>,
	Steve Capper <steve.capper@...aro.org>,
	"srv_heupstream@...iatek.com" <srv_heupstream@...iatek.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: mm: remove unused functions and variable protoypes

On Wed, Feb 25, 2015 at 02:47:45AM +0000, Yingjoe Chen wrote:
> The functions __cpu_flush_user_tlb_range and __cpu_flush_kern_tlb_range
> were removed in commit fa48e6f780 'arm64: mm: Optimise tlb flush logic
> where we have >4K granule'. Global variable cpu_tlb was never used in
> arm64.
> 
> Remove them.
> 
> Signed-off-by: Yingjoe Chen <yingjoe.chen@...iatek.com>
> ---
>  arch/arm64/include/asm/tlbflush.h | 5 -----
>  1 file changed, 5 deletions(-)

Acked-by: Will Deacon <will.deacon@....com>

Will

> diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
> index 73f0ce5..4abe9b9 100644
> --- a/arch/arm64/include/asm/tlbflush.h
> +++ b/arch/arm64/include/asm/tlbflush.h
> @@ -24,11 +24,6 @@
>  #include <linux/sched.h>
>  #include <asm/cputype.h>
>  
> -extern void __cpu_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *);
> -extern void __cpu_flush_kern_tlb_range(unsigned long, unsigned long);
> -
> -extern struct cpu_tlb_fns cpu_tlb;
> -
>  /*
>   *	TLB Management
>   *	==============
> -- 
> 1.8.1.1.dirty
> 
> 
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