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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id F33BEC433EF for ; Mon, 31 Jan 2022 17:38:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: 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=VZ2dmoHD9krG+Mr/dIdTtNaWBBYvnl1CoJDfM66uYK0=; b=n7sPnHnnKcFLnu Tx7pLYShPANR5LM6xwBT8qzmh0TyJEILyjsobI4vwqdPWq81xZkh5US58JhZf/h7s1LfsMXirhl56 cI9s3XxEN/BXTDo8bMEGiscJLO+vL7NueEnS88uvSok/pJPZeCrxSVjPt7RMRpshhIkKRl5BiN2mW UxwQtPPKsR+xfeUj85rP8jlcBae/Fvv5PLouJpOzhOYaKVYLcnSekugUDQLZ5hKwsVLmnL04CH5ZG o4+zpbbsEfLZqnu1u5eWLinLLvlBFHKm/+UeXQROzLNKxqsAhdcmBbCY8vermVi/Fz7ivlJ4iZRlR fMUkkVH0nWaxBqF3fwNw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nEac7-00AARH-GJ; Mon, 31 Jan 2022 17:37:16 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nEaMy-00A4ff-WC for linux-arm-kernel@lists.infradead.org; Mon, 31 Jan 2022 17:21:40 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id DA4AEB82BB2; Mon, 31 Jan 2022 17:21:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95ADDC340E8; Mon, 31 Jan 2022 17:21:32 +0000 (UTC) Date: Mon, 31 Jan 2022 12:21:31 -0500 From: Steven Rostedt To: Ard Biesheuvel Cc: linux@armlinux.org.uk, linux-arm-kernel@lists.infradead.org, Sudeep Holla , Cristian Marussi , Nathan Chancellor , Nick Desaulniers , Arnd Bergmann , Linus Walleij , Masami Hiramatsu Subject: Re: [PATCH v2 00/12] ARM: ftrace fixes and cleanups Message-ID: <20220131122131.5a4de5ea@gandalf.local.home> In-Reply-To: <20220131170347.381551-1-ardb@kernel.org> References: <20220131170347.381551-1-ardb@kernel.org> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220131_092137_242546_CDF1B8F4 X-CRM114-Status: GOOD ( 19.51 ) 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-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 31 Jan 2022 18:03:35 +0100 Ard Biesheuvel wrote: > This series addresses a number of issues in the ARM support code for > ftrace, mostly related to Thumb2 but affecting other configurations as > well. > > Changes since v1: > - add a couple of patches to enable ftrace in Thumb2 mode when building > with Clang, which was the one remaining unsupported configuration > - fix up some minor code issues caught by the bots > - add some acks > > Cc: Steven Rostedt > Cc: Sudeep Holla > Cc: Cristian Marussi > Cc: Nathan Chancellor > Cc: Nick Desaulniers > Cc: Arnd Bergmann > Cc: Linus Walleij > Cc: Masami Hiramatsu > > Ard Biesheuvel (12): > ARM: ftrace: ensure that ADR take Thumb bit into account > ARM: ftrace: use ADD not POP to counter PUSH at entry > ARM: ftrace: use trampolines to keep .init.text in branching range > ARM: ftrace: avoid redundant loads or clobbering IP > ARM: ftrace: avoid unnecessary literal loads > ARM: ftrace: enable HAVE_FUNCTION_GRAPH_FP_TEST > ARM: unwind: track location of LR value in stack frame > ARM: ftrace: enable the graph tracer with the EABI unwinder > ARM: kprobes: treat R7 as the frame pointer register in Thumb2 builds > drivers/firmware/scmi: disable ftrace for Clang Thumb2 builds > ARM: cacheflush: avoid clobbering the frame pointer in Thumb2 mode > Revert "ARM: 9144/1: forbid ftrace with clang and thumb2_kernel" > I'm not strong on ARM assembly, but to the best of my ability and reading the change logs, the "ftrace" portions look good. Reviewed-by: Steven Rostedt (Google) -- Steve _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel