linux-kernel - Re: [PATCH v2 10/21] x86/xen: split off smp

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Date:   Mon, 13 Mar 2017 08:37:42 +0100
From:   Juergen Gross <jgross@...e.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>,
        xen-devel@...ts.xenproject.org
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Andrew Jones <drjones@...hat.com>
Subject: Re: [PATCH v2 10/21] x86/xen: split off smp_hvm.c

On 02/03/17 18:53, Vitaly Kuznetsov wrote:
> Move PVHVM related code to smp_hvm.c. Drop 'static' qualifier from
> xen_smp_send_reschedule(), xen_smp_send_call_function_ipi(),
> xen_smp_send_call_function_single_ipi(), these functions will be moved to
> common smp code when smp_pv.c is split.
> 
> Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>

One nit below, with this addressed:

Reviewed-by: Juergen Gross <jgross@...e.com>

> ---
>  arch/x86/xen/Kconfig   |  4 ++++
>  arch/x86/xen/Makefile  |  1 +
>  arch/x86/xen/smp.c     | 57 +++----------------------------------------------
>  arch/x86/xen/smp.h     |  3 +++
>  arch/x86/xen/smp_hvm.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++
>  5 files changed, 69 insertions(+), 54 deletions(-)
>  create mode 100644 arch/x86/xen/smp_hvm.c
> 

> diff --git a/arch/x86/xen/smp.h b/arch/x86/xen/smp.h
> index a059adb..bf36e79 100644
> --- a/arch/x86/xen/smp.h
> +++ b/arch/x86/xen/smp.h
> @@ -14,6 +14,9 @@ extern void xen_smp_intr_free(unsigned int cpu);
>  extern int xen_smp_intr_init_pv(unsigned int cpu);
>  extern void xen_smp_intr_free_pv(unsigned int cpu);
>  
> +extern void xen_smp_send_reschedule(int cpu);
> +extern void xen_smp_send_call_function_ipi(const struct cpumask *mask);
> +extern void xen_smp_send_call_function_single_ipi(int cpu);

Could you please drop the "extern" qualifier when adding new function
prototypes? I know this just follows the style of the file, but I'd
prefer not to add new instances.


Juergen