From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6C71FC433F5 for ; Wed, 10 Nov 2021 00:46:21 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3231461184 for ; Wed, 10 Nov 2021 00:46:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 3231461184 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=cUyc9+3PfAA2z6zz4pM2hN3NZMoymZ10PYqs6mWQzvI=; b=BTtqJSMC4Z85vks05vTbOyb4Hb lAsTMdnV6K8wJBJRNHlUfNHy0RthXsyEnL9TVKIZsvm1PDNe1JpiZzP/J9ZQ8aDlKLyxEhu2phcXX neWnoNQuWIR4FonGt3pZ0RzHszmDBvJA53J+IacSoN+4uVZ2IGcU2X6+vXjfxIok+iGcrxH74Kqfu WSe+Nh7ugMpEieCTvun2K4XtnKBTuabNx1dQ7Twwz8ADWdY6/N96fqbIg/+xWYacaGUQeaYdqJVUu 8wHNRyG4AXjOkvS5WOQFwdsHQbWD09O03oIlrc0IF164SgdS//sSfyOcfRC5zRRTM6GOZipdC7pP6 AkFDy9Sg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mkbjN-004CyJ-Q3; Wed, 10 Nov 2021 00:44:49 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mkbjK-004Cxs-Cg; Wed, 10 Nov 2021 00:44:47 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 612F361181; Wed, 10 Nov 2021 00:44:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1636505085; bh=tBqFQiiw9vqZZssoZ0S0NgR+UhV7SYeIaE17u5h2RS4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=FK+Ut5ifG886KM7+bhYz5EJbVFYjcr7/oRrSuTnJAc2yk/DlDdzOt6MgPitvbhU58 37sFE9Bm/Gbifg2KU1KAr9MBXbcGUTp3yuVxru/nSBvC+QYfC5eNhb36UCQ3mPWBaY cvZ0+3H149wGy0B+mKVXvCZHs101U/TR1D42GED4nCcPA3SzesjQ1v1vpuxCl+tSFP gqi3QhhlW2nSofytRoZU55h9peYdOQlxL8cZkro7h50GjqxI/stXbgps10x1Lz7z1O I6agWthX2Bdd9P1LijBuYSkoUBW64gBLA9jHSY95cuHA/Fl8K8vrIZ6f+1T+N3KCTL PK2VddGMhY2nw== Date: Tue, 9 Nov 2021 19:44:44 -0500 From: Sasha Levin To: Brian Norris Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Leo Yan , Chen-Yu Tsai , Douglas Anderson , Heiko Stuebner , robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, catalin.marinas@arm.com, will.deacon@arm.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Subject: Re: [PATCH AUTOSEL 5.15 17/82] arm64: dts: rockchip: add Coresight debug range for RK3399 Message-ID: References: <20211109221641.1233217-1-sashal@kernel.org> <20211109221641.1233217-17-sashal@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211109_164446_494711_50909468 X-CRM114-Status: GOOD ( 14.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Nov 09, 2021 at 03:25:39PM -0800, Brian Norris wrote: >On Tue, Nov 9, 2021 at 2:17 PM Sasha Levin wrote: >> >> From: Brian Norris >> >> [ Upstream commit 75dccea503b8e176ad044175e891d7bb291b6ba0 ] >> >> Per Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt. >> >> This IP block can be used for sampling the PC of any given CPU, which is >> useful in certain panic scenarios where you can't get the CPU to stop >> cleanly (e.g., hard lockup). > >I don't understand why this is being backported to -stable. First of >all, it won't work because it's missing dependencies (specifically, >around the RK3399 clock driver). But even if it did, I don't see how >this is a candidate for -stable. > >Methinks the AI has gone too far again. Possibly. We try to take patches that enable existing hardware (or hardware features) where the logic is already in the kernel but it's missing something like adding a new PCI ID or a quirk. This also seems to happen with devicetree files which is why this patch got pulled in. I'll drop it if it depends on patches that didn't make it in. Thanks! -- Thanks, Sasha _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel