linux-kernel - Re: [PATCH V15 0/8] arm64/perf: Enable branch stack sampling

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Message-ID: <86wmtubcyo.wl-maz@kernel.org>
Date:   Mon, 04 Dec 2023 08:15:27 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     Anshuman Khandual <anshuman.khandual@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        will@...nel.org, catalin.marinas@....com, mark.rutland@....com,
        Mark Brown <broonie@...nel.org>,
        James Clark <james.clark@....com>,
        Rob Herring <robh@...nel.org>,
        Suzuki Poulose <suzuki.poulose@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        linux-perf-users@...r.kernel.org
Subject: Re: [PATCH V15 0/8] arm64/perf: Enable branch stack sampling

On Fri, 01 Dec 2023 05:38:58 +0000,
Anshuman Khandual <anshuman.khandual@....com> wrote:
> 
> This series enables perf branch stack sampling support on arm64 platform
> via a new arch feature called Branch Record Buffer Extension (BRBE). All
> the relevant register definitions could be accessed here.
> 
> https://developer.arm.com/documentation/ddi0601/2021-12/AArch64-Registers
> 
> This series applies on 6.7-rc3 after the following series from James Clark.
> 
> https://lore.kernel.org/all/20231019165510.1966367-1-james.clark@arm.com/

Please don't base a series on another one. I haven't looked at James
series yet, and dealing with conflict is my business.

You should base it on -rc3, full stop. If there is a dependency, make
it explicit and include a prefix of the other series you depend on.

	M.

-- 
Without deviation from the norm, progress is not possible.