linux-kernel - Re: [PATCH 2/4] interconnect: Always call pre

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Date:   Mon, 12 Jul 2021 08:39:57 -0700
From:   Mike Tipton <mdtipton@...eaurora.org>
To:     okukatla@...eaurora.org
Cc:     djakov@...nel.org, bjorn.andersson@...aro.org, agross@...nel.org,
        saravanak@...gle.com, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        mdtipton=codeaurora.org@...eaurora.org
Subject: Re: [PATCH 2/4] interconnect: Always call pre_aggregate before
 aggregate

On 7/1/2021 11:55 AM, okukatla@...eaurora.org wrote:
> On 2021-06-26 02:58, Mike Tipton wrote:
>> The pre_aggregate callback isn't called in all cases before calling
>> aggregate. Add the missing calls so providers can rely on consistent
>> framework behavior.
>>
>> Fixes: d3703b3e255f ("interconnect: Aggregate before setting initial 
>> bandwidth")
>> Signed-off-by: Mike Tipton <mdtipton@...eaurora.org>
>> ---
>>  drivers/interconnect/core.c | 5 ++++-
>>  1 file changed, 4 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
>> index 945121e18b5c..cfd54c90a6bb 100644
>> --- a/drivers/interconnect/core.c
>> +++ b/drivers/interconnect/core.c
>> @@ -973,9 +973,12 @@ void icc_node_add(struct icc_node *node, struct
>> icc_provider *provider)
>>      }
>>      node->avg_bw = node->init_avg;
>>      node->peak_bw = node->init_peak;
>> -    if (provider->aggregate)
>> +    if (provider->aggregate) {
>> +        if (provider->pre_aggregate)
>> +            provider->pre_aggregate(node);
> nit: we can invoke pre_aggregate() out side of if (qcom_icc_aggregate).

Sure, will update this.

> 
>>          provider->aggregate(node, 0, node->init_avg, node->init_peak,
>>                      &node->avg_bw, &node->peak_bw);
>> +    }
>>      provider->set(node, node);
>>      node->avg_bw = 0;
>>      node->peak_bw = 0;