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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 C0A5BC2BA83 for ; Fri, 14 Feb 2020 17:15:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9B8572082F for ; Fri, 14 Feb 2020 17:15:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581700525; bh=cDiexPInADw27bWzF75BYpemo7Fx1QdHbtTM10EHw+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=W8FmeSDv5LgqCKYwIj5Hmpv4wMVoaN6WQKQXoFHjfFF0j11HDdDH9EJl7ecu6Tbdv a58h9FsaCOC/HzAsqSnN2QH40YrPur73r2SzE9Xu5kgJfdK/Yjb2DXPwIklkfKOak4 qVbyGMiv4i4HlIagGWus/j7AlGkK1HTQszgirgwY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391226AbgBNRPU (ORCPT ); Fri, 14 Feb 2020 12:15:20 -0500 Received: from mail.kernel.org ([198.145.29.99]:39664 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391950AbgBNQMR (ORCPT ); Fri, 14 Feb 2020 11:12:17 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 42374246AA; Fri, 14 Feb 2020 16:12:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581696737; bh=cDiexPInADw27bWzF75BYpemo7Fx1QdHbtTM10EHw+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0WDR4HQu7WDoS+y2XGsN4YWkwjOuy35GWvMkF0qGFiSVpRgTCg4pPz2pe2ZpjXUze fZOj3RZ6NrDLzS/o3U6/DIdqfJg6gnRSddIQxriM/TwJBoFMKzI8Yp2U6wwb7jYaqt RDuM88vtcjaCRO/qS7QYgHSL36LS6u2CajVSZbZE= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Logan Gunthorpe , Doug Meyer , Bjorn Helgaas , Sasha Levin , linux-pci@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 022/252] PCI/switchtec: Fix vep_vector_number ioread width Date: Fri, 14 Feb 2020 11:07:57 -0500 Message-Id: <20200214161147.15842-22-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200214161147.15842-1-sashal@kernel.org> References: <20200214161147.15842-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Logan Gunthorpe [ Upstream commit 9375646b4cf03aee81bc6c305aa18cc80b682796 ] 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: Sasha Levin --- drivers/pci/switch/switchtec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index ceb7ab3ba3d09..43431816412c1 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -1186,7 +1186,7 @@ static int switchtec_init_isr(struct switchtec_dev *stdev) 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; -- 2.20.1