Re: [PATCH v6 08/10] perf/x86/rapl: Remove the global variable rapl_msrs

[Zhang, Rui]

On Fri, 2024-10-25 at 11:13 +0000, Dhananjay Ugwekar wrote:
> Prepare for the addition of RAPL core energy counter support.
> 
> After making the rapl_model struct global, the rapl_msrs global
> variable isn't needed, so remove it.
> 
> Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@xxxxxxx>

Reviewed-by: Zhang Rui <rui.zhang@xxxxxxxxx>
Tested-by: Zhang Rui <rui.zhang@xxxxxxxxx>

thanks,
rui

> ---
>  arch/x86/events/rapl.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/x86/events/rapl.c b/arch/x86/events/rapl.c
> index ae8b450caa9b..e80b62cf9abc 100644
> --- a/arch/x86/events/rapl.c
> +++ b/arch/x86/events/rapl.c
> @@ -150,7 +150,6 @@ static int rapl_pkg_hw_unit[NR_RAPL_PKG_DOMAINS]
> __read_mostly;
>  static struct rapl_pmus *rapl_pmus_pkg;
>  static unsigned int rapl_pkg_cntr_mask;
>  static u64 rapl_timer_ms;
> -static struct perf_msr *rapl_msrs;
>  static struct rapl_model *rapl_model;
>  
>  /*
> @@ -376,7 +375,7 @@ static int rapl_pmu_event_init(struct perf_event
> *event)
>                 return -EINVAL;
>  
>         event->pmu_private = rapl_pmu;
> -       event->hw.event_base = rapl_msrs[bit].msr;
> +       event->hw.event_base = rapl_model->rapl_pkg_msrs[bit].msr;
>         event->hw.config = cfg;
>         event->hw.idx = bit;
>  
> @@ -805,9 +804,7 @@ static int __init rapl_pmu_init(void)
>  
>         rapl_model = (struct rapl_model *) id->driver_data;
>  
> -       rapl_msrs = rapl_model->rapl_pkg_msrs;
> -
> -       rapl_pkg_cntr_mask = perf_msr_probe(rapl_msrs,
> PERF_RAPL_PKG_EVENTS_MAX,
> +       rapl_pkg_cntr_mask = perf_msr_probe(rapl_model-
> >rapl_pkg_msrs, PERF_RAPL_PKG_EVENTS_MAX,
>                                         false, (void *) &rapl_model-
> >pkg_events);
>  
>         ret = rapl_check_hw_unit();