From patchwork Tue Sep 29 21:46:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 1373811 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20161025 header.b=HdK7XgY2; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4C1Cg92tBfz9sVS for ; Wed, 30 Sep 2020 07:48:05 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729367AbgI2VsA (ORCPT ); Tue, 29 Sep 2020 17:48:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728646AbgI2Vqy (ORCPT ); Tue, 29 Sep 2020 17:46:54 -0400 Received: from mail-qv1-xf4a.google.com (mail-qv1-xf4a.google.com [IPv6:2607:f8b0:4864:20::f4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E05EFC0613D6 for ; Tue, 29 Sep 2020 14:46:52 -0700 (PDT) Received: by mail-qv1-xf4a.google.com with SMTP id y2so3365040qvs.14 for ; Tue, 29 Sep 2020 14:46:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=Xjrukg6K3IydY/lqqi+bCZNdR5RjdEmABiI8yk+fZMI=; b=HdK7XgY20csMFcb+NLyDCXa0Y0BGLZ848JpvtrKXuN4kP13qc7mB9gIo/tOvGsTK0n Ji2dtRPOFfuxFcA+duNxDZiijoE33HNw7tWDF5E8m1wqENg9cj6ei3CjwJ0N3MORXBa0 OiIDsCN2lwWZN36P+HMA0/i6r+hGq8LSRXCmTEW0ezq9gHlvKKSRObpHJBOae/EdWdAU 32Gd6c/t2yV+iQQ9uWMBg3zEyEcOs6POlcO4VSL93GZziqn82PoJ2cs2fwnaH1D9AfNM SAML6VP9UfLTVbfCFJsAI8Lgk3AeE4OjZhWgBqaEtQTo1lOZgisnM8dMNB6pz6Qg5Lay cqDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=Xjrukg6K3IydY/lqqi+bCZNdR5RjdEmABiI8yk+fZMI=; b=MADzObD0227rRJWb75az53TbsNCakcDwc5Zl8Q3eVP53VmI0t22FW+wcVt4+kKP7AW D/9AXTuXhkAahLwlrMHEfQoVfrVhQZIub6jf6ASZ9sPX5Yo70H5GNsZhSj4tkuLLVIQW 64MsEDX45b0RyLsKksHJKCtb6g/1BWILzPW3f5iC1ZW56dBdqwSSM3coD5Ny4LodW/By g7cO7GZ8pq4F26Zt8Scd2PIKvrmwRElmQrvfWDcubb6yXan9Dw5MCJGrBX0YhD7A/Aa8 wdzw4w/b5ONJhav5FnjPVXxOqj8v+eCJPH/zh+d0AsBoNHyskds0ATA5e5hxeFaBArHR N2fA== X-Gm-Message-State: AOAM532Y//IpMhESYQuNbApZAwCPSlmQj39zHnW119sYmOp7ApVbvuuh l6nk1MWl7+vi1OzsgYaYNG9jubvXr6Qr89lK3/Q= X-Google-Smtp-Source: ABdhPJy7cJ63oyWVE3guhSQ8dpAugUL8BOvZOYiTdX/ZOOHGsEKlj0fM6UJAmLz8cRUfCBdDvDQP4efk1c6ZbLA+m7Q= Sender: "samitolvanen via sendgmr" X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:f693:9fff:fef4:1b6d]) (user=samitolvanen job=sendgmr) by 2002:ad4:42b3:: with SMTP id e19mr6361028qvr.6.1601416011975; Tue, 29 Sep 2020 14:46:51 -0700 (PDT) Date: Tue, 29 Sep 2020 14:46:11 -0700 In-Reply-To: <20200929214631.3516445-1-samitolvanen@google.com> Message-Id: <20200929214631.3516445-10-samitolvanen@google.com> Mime-Version: 1.0 References: <20200929214631.3516445-1-samitolvanen@google.com> X-Mailer: git-send-email 2.28.0.709.gb0816b6eb0-goog Subject: [PATCH v4 09/29] arm64: disable recordmcount with DYNAMIC_FTRACE_WITH_REGS From: Sami Tolvanen To: Masahiro Yamada , Will Deacon , Steven Rostedt Cc: Peter Zijlstra , Greg Kroah-Hartman , "Paul E. McKenney" , Kees Cook , Nick Desaulniers , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, x86@kernel.org, Sami Tolvanen Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY to disable recordmcount when DYNAMIC_FTRACE_WITH_REGS is selected. Signed-off-by: Sami Tolvanen --- arch/arm64/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 6d232837cbee..ad522b021f35 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -155,6 +155,8 @@ config ARM64 select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS \ if $(cc-option,-fpatchable-function-entry=2) + select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY \ + if DYNAMIC_FTRACE_WITH_REGS select HAVE_EFFICIENT_UNALIGNED_ACCESS select HAVE_FAST_GUP select HAVE_FTRACE_MCOUNT_RECORD