Received: by 2002:a05:7412:b995:b0:f9:9502:5bb8 with SMTP id it21csp58425rdb; Thu, 21 Dec 2023 02:45:45 -0800 (PST) X-Google-Smtp-Source: AGHT+IGMnlCYddmwa4G4Jgc0diOh6+ys9uS2w4fMMhLe4QrSfmRVmzPNuwB3hTjgEcCuXzSLcU58 X-Received: by 2002:a05:6358:6a46:b0:173:3300:d901 with SMTP id c6-20020a0563586a4600b001733300d901mr1296478rwh.38.1703155545430; Thu, 21 Dec 2023 02:45:45 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1703155545; cv=none; d=google.com; s=arc-20160816; b=s7evsYtuSysTDW93PtTvfuJ1Ysr1blHrpkOTqI9GeBFD+Tc0HcXiMU0NzamQZlCS/Z UjlwVOPAAXYAaBu6XewXlDHiO4bRA4XrqTA1sN7ORVyEkMO6wKZV+R7a1dJtDpWXViT5 DlidEDiwBEQzbeWPSMutKsexcrCyhXzmH91zKzYCOMADPTn5jvTBdCjU+9R4Xn/mNjmN NG7HmaeTq40im509rgs2iiJ4rpjbydsWr/j185mpnIfOCeNViGGnlPsPTaYbhhd8LyUp VKzlIBSpkOqBasXPVH7yxVw1KJ+tLFkYGlmmazP/SYewv0JQc8msYudFREIdtP9OL8Wb nQBg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:date:message-id:subject :references:in-reply-to:cc:to:from; bh=ip1Aat3QXB2f20bFFIdenTu62MCf6qwYXv6O/uxGUEo=; fh=a8w9Z0482j+QkmJLQF8fPTv3VG9S3xiS0qpZqJjwGmQ=; b=xPu6nk+wnyZEjMpn5JJRF0H5ZVhU1kxgI2SjWRdEEmWYs4up9cMYewmYm3bLShqgFB qPzoK97tZkuezSHl+fd5iGSSVsZp1f1OYizOsaK5qWwEJvoobasTW3SQDFpzNmkT2e63 yrnxich9kewrIYPWeI4KVXxVhqXx06dKDy/ZUR/15N2WWATYp+NMSiZuNQdQNtVsn2Pv jnkIdIRzDTnfNp8cQbGvHtnvIqCOQD8Hm+mRfT59zkUCxkTrfJOhX8yllnQXeTPIWl5G WjcBk0qv4UNynJ7Fdg5RW5KDeDXnqvpu56XPvEIXJ/T35jBM8+kJpXSJXz/D3ZMga91S JTSg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-8229-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) smtp.mailfrom="linux-kernel+bounces-8229-linux.lists.archive=gmail.com@vger.kernel.org" Return-Path: Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org. [147.75.48.161]) by mx.google.com with ESMTPS id y29-20020aa79e1d000000b006d95bcb0280si1321908pfq.32.2023.12.21.02.45.44 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Dec 2023 02:45:45 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-8229-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-8229-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) smtp.mailfrom="linux-kernel+bounces-8229-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id 8D6BEB238EF for ; Thu, 21 Dec 2023 10:43:21 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 62037760A0; Thu, 21 Dec 2023 10:41:01 +0000 (UTC) X-Original-To: linux-kernel@vger.kernel.org Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) (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 43DE9745E9 for ; Thu, 21 Dec 2023 10:40:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ellerman.id.au Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4Swn5f4TZjz4xPc; Thu, 21 Dec 2023 21:40:54 +1100 (AEDT) From: Michael Ellerman To: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Naveen N Rao Cc: Nicholas Piggin , Christophe Leroy , "Aneesh Kumar K.V" , Steven Rostedt , Mark Rutland , Florent Revest , Masami Hiramatsu In-Reply-To: References: Subject: Re: (subset) [RFC PATCH 0/9] powerpc: ftrace updates Message-Id: <170315510015.2192823.8374732857134504654.b4-ty@ellerman.id.au> Date: Thu, 21 Dec 2023 21:38:20 +1100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit On Fri, 08 Dec 2023 22:00:39 +0530, Naveen N Rao wrote: > Early RFC. > > This series attempts to address couple of issues with the existing > support for ftrace on powerpc, with a view towards improving performance > when ftrace is not enabled. See patch 6 for more details. > > Patches 7 and 8 implement support for ftrace direct calls, through > adding support for DYNAMIC_FTRACE_WITH_CALL_OPS. > > [...] Patches 1, 3 and 4 applied to powerpc/next. [1/9] powerpc/ftrace: Fix indentation in ftrace.h https://git.kernel.org/powerpc/c/2ec36570c3581285d15de672eaed10ce7e9218cd [3/9] powerpc/ftrace: Remove nops after the call to ftrace_stub https://git.kernel.org/powerpc/c/ae24db43b3b427eb290b58d55179c32f0a7539d1 [4/9] powerpc/Kconfig: Select FUNCTION_ALIGNMENT_4B https://git.kernel.org/powerpc/c/b20f98e8b3deb50247603f0242ee2d1e38726635 cheers