linux-kernel - Re: [PATCH 1/3] arm/xen: remove lazy mode related definitions

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Date:   Wed, 13 Sep 2023 16:07:01 -0700 (PDT)
From:   Stefano Stabellini <sstabellini@...nel.org>
To:     Juergen Gross <jgross@...e.com>
cc:     linux-kernel@...r.kernel.org,
        Stefano Stabellini <sstabellini@...nel.org>,
        Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>,
        xen-devel@...ts.xenproject.org
Subject: Re: [PATCH 1/3] arm/xen: remove lazy mode related definitions

On Wed, 13 Sep 2023, Juergen Gross wrote:
> include/xen/arm/hypervisor.h contains definitions related to paravirt
> lazy mode, which are used nowhere in the code.
> 
> All paravirt lazy mode related users are in x86 code, so remove the
> definitions on Arm side.
> 
> Signed-off-by: Juergen Gross <jgross@...e.com>

Acked-by: Stefano Stabellini <sstabellini@...nel.org>


> ---
>  include/xen/arm/hypervisor.h | 12 ------------
>  1 file changed, 12 deletions(-)
> 
> diff --git a/include/xen/arm/hypervisor.h b/include/xen/arm/hypervisor.h
> index 43ef24dd030e..9995695204f5 100644
> --- a/include/xen/arm/hypervisor.h
> +++ b/include/xen/arm/hypervisor.h
> @@ -7,18 +7,6 @@
>  extern struct shared_info *HYPERVISOR_shared_info;
>  extern struct start_info *xen_start_info;
>  
> -/* Lazy mode for batching updates / context switch */
> -enum paravirt_lazy_mode {
> -	PARAVIRT_LAZY_NONE,
> -	PARAVIRT_LAZY_MMU,
> -	PARAVIRT_LAZY_CPU,
> -};
> -
> -static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
> -{
> -	return PARAVIRT_LAZY_NONE;
> -}
> -
>  #ifdef CONFIG_XEN
>  void __init xen_early_init(void);
>  #else
> -- 
> 2.35.3
>