Re: [PATCH v6 0/6] Add HiSilicon SoC uncore Performance Monitoring Unit driver

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On Thu, Oct 19, 2017 at 04:28:35PM +0100, Will Deacon wrote:
> On Thu, Oct 19, 2017 at 01:29:18PM +0100, Mark Rutland wrote:
> > Will, are you happy to queue this?
> > 
> > There's a minor fixup [1] needed in patch 2, but otherwise this looks
> > good to me, and builds cleanly.
> > 
> > I've pushed out a branch [2] with that fix folded in, in case that's
> > easier for you. Otherwise, feel free to pick these up with my Ack.
> 
> I'm just running some build tests on these. I also tweaked your fix slightly
> -- can you check the diff below please?

That's nicer!

My ack stands with that folded in.

Mark.

> diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c
> index 2bff43f0736b..c74542af4acf 100644
> --- a/drivers/perf/hisilicon/hisi_uncore_pmu.c
> +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c
> @@ -69,15 +69,18 @@ static bool hisi_validate_event_group(struct perf_event *event)
>  	/* Include count for the event */
>  	int counters = 1;
>  
> -	/*
> -	 * We must NOT create groups containing mixed PMUs, although
> -	 * software events are acceptable
> -	 */
> -	if (leader->pmu != event->pmu && !is_software_event(leader))
> -		return false;
> +	if (!is_software_event(leader)) {
> +		/*
> +		 * We must NOT create groups containing mixed PMUs, although
> +		 * software events are acceptable
> +		 */
> +		if (leader->pmu != event->pmu)
> +			return false;
>  
> -	/* Increment counter for the leader */
> -	counters++;
> +		/* Increment counter for the leader */
> +		if (leader != event)
> +			counters++;
> +	}
>  
>  	list_for_each_entry(sibling, &event->group_leader->sibling_list,
>  			    group_entry) {
--
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