Re: [PATCH v3 19/23] sh: use asm-generic/mmu_context.h for no-op implementations

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On Wed, Sep 02, 2020 at 12:15:35AM +1000, Nicholas Piggin wrote:
> Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
> Cc: Rich Felker <dalias@xxxxxxxx>
> Cc: linux-sh@xxxxxxxxxxxxxxx
> Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx>
> ---
> 
> Please ack or nack if you object to this being mered via
> Arnd's tree.

Acked-by: Rich Felker <dalias@xxxxxxxx>

> 
>  arch/sh/include/asm/mmu_context.h    | 5 ++---
>  arch/sh/include/asm/mmu_context_32.h | 9 ---------
>  2 files changed, 2 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/sh/include/asm/mmu_context.h b/arch/sh/include/asm/mmu_context.h
> index 461b1304580b..78eef4e7d5df 100644
> --- a/arch/sh/include/asm/mmu_context.h
> +++ b/arch/sh/include/asm/mmu_context.h
> @@ -84,6 +84,7 @@ static inline void get_mmu_context(struct mm_struct *mm, unsigned int cpu)
>   * Initialize the context related info for a new mm_struct
>   * instance.
>   */
> +#define init_new_context init_new_context
>  static inline int init_new_context(struct task_struct *tsk,
>  				   struct mm_struct *mm)
>  {
> @@ -120,9 +121,7 @@ static inline void switch_mm(struct mm_struct *prev,
>  			activate_context(next, cpu);
>  }
>  
> -#define activate_mm(prev, next)		switch_mm((prev),(next),NULL)
> -#define deactivate_mm(tsk,mm)		do { } while (0)
> -#define enter_lazy_tlb(mm,tsk)		do { } while (0)
> +#include <asm-generic/mmu_context.h>
>  
>  #else
>  
> diff --git a/arch/sh/include/asm/mmu_context_32.h b/arch/sh/include/asm/mmu_context_32.h
> index 71bf12ef1f65..bc5034fa6249 100644
> --- a/arch/sh/include/asm/mmu_context_32.h
> +++ b/arch/sh/include/asm/mmu_context_32.h
> @@ -2,15 +2,6 @@
>  #ifndef __ASM_SH_MMU_CONTEXT_32_H
>  #define __ASM_SH_MMU_CONTEXT_32_H
>  
> -/*
> - * Destroy context related info for an mm_struct that is about
> - * to be put to rest.
> - */
> -static inline void destroy_context(struct mm_struct *mm)
> -{
> -	/* Do nothing */
> -}
> -
>  #ifdef CONFIG_CPU_HAS_PTEAEX
>  static inline void set_asid(unsigned long asid)
>  {
> -- 
> 2.23.0



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