From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C88BD2F4 for ; Mon, 4 Dec 2023 08:15:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ukbJh7RK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8E40DC433C8; Mon, 4 Dec 2023 08:15:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701677730; bh=qlDPIouXtWpmNJTQRrNp5a7BzTLkGsjxWnsfCsot124=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=ukbJh7RKh8jV3uXnw2cPJn4mHHl275D6hZRIzpf6ucpeLMeCV6+ibZpJIxmS5Urwj HOttwV4v4zWqMb1tDTDsPtdPJFmgyI8Fvjmo1cMAc5aMAVgXOudp6YebcI+fc3QlZk qI8pqvwFcfn1FQRVN/3bnfw2pYyewmqFsHalqI/TLRNnwzoeYJ9pK5RtO4puz8Psvv ccVeJrEmQtdTxzOJtlURCCyeaWQ3+MOrkegLZD80pCMohjz7CDXkdNJzD17dmIj9RT J+EFw1digyqjHUZ/NdKhqTuo1lvZmpHHDUGAM8t4pGJ3/0rLwB9bPizhjMu3zTKW5j Fqj5Ebv5X+TRA== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1rA46y-0018f1-14; Mon, 04 Dec 2023 08:15:28 +0000 Date: Mon, 04 Dec 2023 08:15:27 +0000 Message-ID: <86wmtubcyo.wl-maz@kernel.org> From: Marc Zyngier To: Anshuman Khandual Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, will@kernel.org, catalin.marinas@arm.com, mark.rutland@arm.com, Mark Brown , James Clark , Rob Herring , Suzuki Poulose , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , linux-perf-users@vger.kernel.org Subject: Re: [PATCH V15 0/8] arm64/perf: Enable branch stack sampling In-Reply-To: <20231201053906.1261704-1-anshuman.khandual@arm.com> References: <20231201053906.1261704-1-anshuman.khandual@arm.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/29.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: anshuman.khandual@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, will@kernel.org, catalin.marinas@arm.com, mark.rutland@arm.com, broonie@kernel.org, james.clark@arm.com, robh@kernel.org, suzuki.poulose@arm.com, peterz@infradead.org, mingo@redhat.com, acme@kernel.org, linux-perf-users@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Fri, 01 Dec 2023 05:38:58 +0000, Anshuman Khandual 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.