From patchwork Mon Jul 22 07:11:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunyan Zhang X-Patchwork-Id: 11051711 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C815C6C5 for ; Mon, 22 Jul 2019 07:11:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ABD43284FF for ; Mon, 22 Jul 2019 07:11:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9AE7F28508; Mon, 22 Jul 2019 07:11:49 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9DA6D284FF for ; Mon, 22 Jul 2019 07:11:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To :From: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=cjFHT0sxCpyZwvYJpFHW/kRLsWYEaagRo+PPvtM/2DU=; b=ceG4HjnT7Gp970 C3VPDzNjZSE6AKNPn8aeKz37AaWt2JlbHN7YN5kB3Tc4FFXLmV4e/qxd3Q3J0jo5OWaJX4dzBt4hj B+CWDXoUUvuR3fh5Nlul67aTqZvhhLNdrrI9H4Hi9AhR5zELkKJWf9pVJU6arEeYuHGwy50WNc6x8 mBTRwMYjvLDDUCNITVl7gNeLNQwDmhtVGpek3cQAyPCAjwia/V6IdXw5H9wHeMUaLOpramnscLEio bJiy9wBG6CzUu/sAaG1kI9a097P40yaNT65IzcQmtn/A4krAorop3S3OovYyWxOPWUizKB/fWuVAL DHxUCYl6/OcYVckGEFHw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hpSU7-00037R-Vl; Mon, 22 Jul 2019 07:11:47 +0000 Received: from mail-pf1-x442.google.com ([2607:f8b0:4864:20::442]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hpSU3-00036l-Sd for linux-arm-kernel@lists.infradead.org; Mon, 22 Jul 2019 07:11:45 +0000 Received: by mail-pf1-x442.google.com with SMTP id r1so16919979pfq.12 for ; Mon, 22 Jul 2019 00:11:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=e1pJmXf06oFMwCzMyXmo4V3Hcs9L90I0Lgp7Zs+lizs=; b=iAh0Z3QDrCqnhE6s5INTogxHKD1RMM0Afq5gQ9G5TTIv+84InCYsEJwIsWDmMzciYL kF+ABGPCiz7nv6hIoX8J8Nmk2Ia2Pmn47cXlHbRFq4lon6dXVUeqycjg29Y1cV2zs7Ot RjhwlEu0RliMS34cgKQSSQJTCZNet7811kRlvigJITVWiaii2cRdvxMqF3cx2axLKWx8 XF/EDjGBzXO0TaAucl3/mhya7x+4yNTW0HgmTGRfH9cHY3VPPTI49syz9CI1bbZ509m0 Zx4Hmg5zt4+boXTsyw14Nlq2iT+xb1E52Cju9XpqVQRUnK9aBiesTv8j6Ga+lU+6qYdY uS3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=e1pJmXf06oFMwCzMyXmo4V3Hcs9L90I0Lgp7Zs+lizs=; b=B+vW1rsH46Sifx/SXC7hV4Fb8CewcovBj573PBjkfWxiSJ/D6mWTMh7fagBZqWtEqO ScYGRRoIVcdTEw7YQcsV+fYZe8+rLB2vpgB17nJr35SvJS5tUvlrNcf7uRg+k3HNTIRQ PdoFq0EDCKwy+eFALqSixKWrVoD/SqQ6wtcxnryNMjrlAxLmhKksRU2PHvJGgp1/EH5Z cD5y0H8xfUfnzZhDL4sYW11bkIKwnwHTIT8X4Ci85XlHiBXHQkdgEFVGp6mC2hMILfCL FvAEcCeGKbsYm5jyvA0yGpQp18v/7BEBwEj2Ii5EQTtqePcaEe0mzc8ETPPeMXMWShCK XrNg== X-Gm-Message-State: APjAAAVJrVyr1/XuXiJ5niVx5yUqqB061vKYeP4/F01FI5C/+gVy6Qn2 5XmVNzNdxZ93Dxy0BH0lV7x5hb/z X-Google-Smtp-Source: APXvYqw90pms2WbCzTCZEmaN/6pRv51JhveW4MUeNKwghaamFFptL7ODl0b6Urb5d753rcgiiBSEZQ== X-Received: by 2002:a65:6546:: with SMTP id a6mr15364250pgw.220.1563779502459; Mon, 22 Jul 2019 00:11:42 -0700 (PDT) Received: from ubt.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id q69sm53738861pjb.0.2019.07.22.00.11.40 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 22 Jul 2019 00:11:41 -0700 (PDT) From: Chunyan Zhang To: Russell King , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] ARM: check stmfd instruction using right shift Date: Mon, 22 Jul 2019 15:11:22 +0800 Message-Id: <20190722071122.22434-1-zhang.lyra@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190722_001143_949584_3DA1954F X-CRM114-Status: GOOD ( 11.38 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chunyan Zhang , Lvqiang Huang Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Lvqiang Huang In the commit ef41b5c92498 ("ARM: make kernel oops easier to read"), - .word 0xe92d0000 >> 10 @ stmfd sp!, {} + .word 0xe92d0000 >> 11 @ stmfd sp!, {} then the shift need to change to 11. Signed-off-by: Lvqiang Huang Signed-off-by: Chunyan Zhang --- arch/arm/lib/backtrace.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/lib/backtrace.S b/arch/arm/lib/backtrace.S index 7d7952e..926851b 100644 --- a/arch/arm/lib/backtrace.S +++ b/arch/arm/lib/backtrace.S @@ -70,7 +70,7 @@ for_each_frame: tst frame, mask @ Check for address exceptions 1003: ldr r2, [sv_pc, #-4] @ if stmfd sp!, {args} exists, ldr r3, .Ldsi+4 @ adjust saved 'pc' back one - teq r3, r2, lsr #10 @ instruction + teq r3, r2, lsr #11 @ instruction subne r0, sv_pc, #4 @ allow for mov subeq r0, sv_pc, #8 @ allow for mov + stmia