From patchwork Fri Dec 3 13:19:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 12694706 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 91316C433F5 for ; Fri, 3 Dec 2021 13:22:28 +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: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:In-Reply-To:References: List-Owner; bh=opp67z0+0WOyko/qGUGdtLe7BCfxBGOnrtyXpPLyBJk=; b=XwsaX2otC8G3gm TTEG/Ck2bkHnoIvzPOJ1tmXc10FUiDZ5G7mSJfp28V/P4URMIXlASlME1sUS8FeUSEYWimKdNTPGm 9fA1u6d1v7rSJdrDhFUpU29UrkU+OvugGXWu43fehlSBo5WNUHgBF6iv34992HgP2OD5SK5NWHInU 4fqceKEbsoN5d8XOUceVCoyQECaKy4c9MpExcTqv2UtAKAA1aM8r4Xjeal91swz3zSgN7EmtWjQ7M lF4STcDVW1pfFDfvWBjyMV9fNY/WyHImZWhtMA0ycpfZFTSMF6z9r0FhdRIqN4UfmxeaVbuqk6GJk skWXLqzk4xL4d+BpI0bw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mt8Ub-00FtyJ-Cy; Fri, 03 Dec 2021 13:20:51 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mt8TZ-00FtRS-8W for linux-arm-kernel@lists.infradead.org; Fri, 03 Dec 2021 13:19:46 +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 dfw.source.kernel.org (Postfix) with ESMTPS id 2D7B262A5C; Fri, 3 Dec 2021 13:19:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 54C40C53FAD; Fri, 3 Dec 2021 13:19:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638537583; bh=LM3IvW6tyw+wXNHiyZ9pLHq/xH80ZhSAffxzn3xw+TA=; h=Date:From:To:Cc:Subject:From; b=pKuTex03s2Rllks4GEm3EKOJlMGeDJVexpIGR1wsllueJug/HUbPBQplRghv3Ifml tAoC6i+VPe+wsn1UTdmhFTxOOedt49F2/1slkSDoIPXF6Z+qyX/29AM3wsAEalQCVS 4Dkqi2vZJ6hyLUFdm2aRD2Te5tymc+ZYp7zswvKm9IOfW3TyTVUqHxnAysb8Jnpano ZdLBgRw78QWgOgqL3gJdIxas87qFC68erwE9S4mAxuON/+iMueYt0l1CX0gBzD1i6J snqN2GRSHMPqYsTMWCqzVRGe7GHXi6PYXB1xLGNwY+nAs+zxsN5j4eFDvlEgkAPOz8 HFFyqzMhOcUmQ== Date: Fri, 3 Dec 2021 13:19:38 +0000 From: Will Deacon To: torvalds@linux-foundation.org Cc: catalin.marinas@arm.com, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel-team@android.com Subject: [GIT PULL] arm64 fixes for -rc4 Message-ID: <20211203131937.GA27943@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211203_051945_374592_9449AF70 X-CRM114-Status: GOOD ( 13.60 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Linus, Please pull these three arm64 fixes for -rc4. One of them is just a trivial documentation fix, whereas the other two address a warning in the kexec code and a crash in ftrace on systems implementing BTI. The latter patch has a couple of ugly ifdefs which Mark plans to clean up separately, but as-is the patch is straightforward for backporting to stable kernels. Cheers, Will --->8 The following changes since commit 94902d849e85093aafcdbea2be8e2beff47233e6: arm64: uaccess: avoid blocking within critical sections (2021-11-24 09:16:26 +0000) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git tags/arm64-fixes for you to fetch changes up to 35b6b28e69985eafb20b3b2c7bd6eca452b56b53: arm64: ftrace: add missing BTIs (2021-12-02 10:18:32 +0000) ---------------------------------------------------------------- arm64 fixes for -rc4 - Add missing BTI landing instructions to the ftrace*_caller trampolines - Fix kexec() WARN when DEBUG_VIRTUAL is enabled - Fix PAC documentation by removing stale references to compiler flags ---------------------------------------------------------------- Kuan-Ying Lee (1): arm64: update PAC description for kernel Mark Rutland (2): arm64: kexec: use __pa_symbol(empty_zero_page) arm64: ftrace: add missing BTIs Documentation/arm64/pointer-authentication.rst | 9 ++++----- arch/arm64/kernel/entry-ftrace.S | 6 ++++++ arch/arm64/kernel/machine_kexec.c | 2 +- 3 files changed, 11 insertions(+), 6 deletions(-)