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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4250C3B189 for ; Thu, 13 Feb 2020 15:42:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BC4F620661 for ; Thu, 13 Feb 2020 15:42:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581608544; bh=WQYTaSRBExE6PaosO5v/KWzCmYCtSkS2DD6iHQlv0Ng=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wVpmr7UFVRGInd6PCwIculrHX/5JadxhsV0lpfLFhWqoro5Gl7Zut65ygqiOnNr9q GYeGH6qaKfg5+OL2DtDq35HfIkMl2Efq4r0SQU5Xo5wEavpHM2sbE7t8MtDhJlHnfT IhQd8vMtfkYmjSD2Iz7Wi/YzTO1Z5hrZ7o9RfQjg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728002AbgBMP2P (ORCPT ); Thu, 13 Feb 2020 10:28:15 -0500 Received: from mail.kernel.org ([198.145.29.99]:54938 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729594AbgBMP2P (ORCPT ); Thu, 13 Feb 2020 10:28:15 -0500 Received: from localhost (unknown [104.132.1.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3D39D206DB; Thu, 13 Feb 2020 15:28:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581607694; bh=WQYTaSRBExE6PaosO5v/KWzCmYCtSkS2DD6iHQlv0Ng=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gHX8idXLwhT1ad7e6Xjd75NaPO2SFAlJrydspHlSx5x7CUlgE3YH8/pMgksuV6CKC Y1zE6cqo6IGn7D+t11dU/l/bqPGeDRBxo1LuNSHktbcg73i6bcDyV1g1fDW0lNi9Sp 3uq+vKVSYFIpO0lNF7O0GkdpamFFCO7FbYzdFlUY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Doug Meyer , Logan Gunthorpe , Bjorn Helgaas Subject: [PATCH 5.5 017/120] PCI/switchtec: Fix vep_vector_number ioread width Date: Thu, 13 Feb 2020 07:20:13 -0800 Message-Id: <20200213151907.873573308@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200213151901.039700531@linuxfoundation.org> References: <20200213151901.039700531@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Logan Gunthorpe commit 9375646b4cf03aee81bc6c305aa18cc80b682796 upstream. vep_vector_number is actually a 16 bit register which should be read with ioread16() instead of ioread32(). Fixes: 080b47def5e5 ("MicroSemi Switchtec management interface driver") Link: https://lore.kernel.org/r/20200106190337.2428-3-logang@deltatee.com Reported-by: Doug Meyer Signed-off-by: Logan Gunthorpe Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- drivers/pci/switch/switchtec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -1276,7 +1276,7 @@ static int switchtec_init_isr(struct swi if (nvecs < 0) return nvecs; - event_irq = ioread32(&stdev->mmio_part_cfg->vep_vector_number); + event_irq = ioread16(&stdev->mmio_part_cfg->vep_vector_number); if (event_irq < 0 || event_irq >= nvecs) return -EFAULT;