linux-kernel - Re: [PATCH] perf: Consolidate branch sample filter helpers

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Message-ID: <808b31ab-f4d7-ede4-abaf-def639455c36@arm.com>
Date:   Wed, 7 Sep 2022 11:51:56 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>
Subject: Re: [PATCH] perf: Consolidate branch sample filter helpers



On 9/6/22 15:39, Peter Zijlstra wrote:
> On Tue, Sep 06, 2022 at 02:14:14PM +0530, Anshuman Khandual wrote:
>> Besides the branch type filtering requests, 'event.attr.branch_sample_type'
>> also contains various flags indicating which additional information should
>> be captured, along with the base branch record. These flags help configure
>> the underlying hardware, and capture the branch records appropriately when
>> required e.g after PMU interrupt. But first, this moves an existing helper
>> perf_sample_save_hw_index() into the header before adding some more helpers
>> for other branch sample filter flags.
>>
>> Cc: Peter Zijlstra <peterz@...radead.org>
>> Cc: Ingo Molnar <mingo@...hat.com>
>> Cc: Arnaldo Carvalho de Melo <acme@...nel.org>
>> Cc: linux-perf-users@...r.kernel.org
>> Cc: linux-kernel@...r.kernel.org
>> Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
>> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
>> ---
>> Hello Peter,
>>
>> Could you please consider taking this patch along with others on the perf
>> ABI series. This patch has been part of the original BRBE driver series,
>> which will have one less patch to include going forward. Thank you.
>>
>> - Anshuman
>>
>> This applies on v6.0-rc4 but after applying the following patch series
>>
>> https://lore.kernel.org/all/20220824044822.70230-1-anshuman.khandual@arm.com/
>>
> 
> Yeah, but it doesn't cleanly apply to tip/perf/core....
> 
> The conflict looks trivial, let me stomp on it to make it fit :-)

Thank you.