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 092DDC3B1AF for ; Fri, 14 Feb 2020 17:44:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CFF3D20873 for ; Fri, 14 Feb 2020 17:44:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581702287; bh=cdBuiAVRy0pOtOROH6mccpHZwIddggqEXbohsQkh8WM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vwQat/OHxtcQu4iUuWAKQCWqkFOz9CY6wOaNS/6EmDDroQFeFLOdkxGLUy/Gqkk/j 0rzht9K9niH6izQ5B8jiI6AbauniklRAeG8eIQTmyrzGcQ7qboUCNDQ0lzUoICJKr8 Y7wMcIWN1pGSVYImC8I2FPSH4aVArczDNOTr/6KI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389521AbgBNQDB (ORCPT ); Fri, 14 Feb 2020 11:03:01 -0500 Received: from mail.kernel.org ([198.145.29.99]:49790 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389076AbgBNQDA (ORCPT ); Fri, 14 Feb 2020 11:03:00 -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 272642082F; Fri, 14 Feb 2020 16:02:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581696179; bh=cdBuiAVRy0pOtOROH6mccpHZwIddggqEXbohsQkh8WM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AYHf22tJr/xf2eDzhnO0WaBjpnW17bQa3hjG9B70FXT4/lAZQpEuvUECO2zAcTdWT +J7BYF1OLJwXAfnvGU2ZKXALWV9s3KIa2dr4hevsQ1mV+XiG5Z03X2T0WOQ4Dpm636 kI9YfnyY+RPk1S0unEsx7Wk917MRog4l595GTol0= 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 5.4 051/459] PCI/switchtec: Fix vep_vector_number ioread width Date: Fri, 14 Feb 2020 10:55:01 -0500 Message-Id: <20200214160149.11681-51-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200214160149.11681-1-sashal@kernel.org> References: <20200214160149.11681-1-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 465d6afd826e8..efa6abc86995f 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -1276,7 +1276,7 @@ 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