From patchwork Tue Jun 23 19:54:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 223190 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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 27CE6C433DF for ; Tue, 23 Jun 2020 21:21:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 063F420724 for ; Tue, 23 Jun 2020 21:21:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592947270; bh=HZ2ifpDmMjjxo73WjnqemiqePyzHTWnCg2nXFzCRFc0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=XucjbcT+NLDDqN8xnEeBs56avVxuTR0zWgZkduz4FKOoZNPSkEXcO6XFena6RrBrQ lwJlFmnBoBayQXADjXyC79SU2du2H3c1zhbmsK9XDu2kbbhb5LLnkE7UtY9WEJW22m JJIM1KJzK8U/zRxOvtts9GQYw0y2QY10FbtOyoLg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391058AbgFWVVI (ORCPT ); Tue, 23 Jun 2020 17:21:08 -0400 Received: from mail.kernel.org ([198.145.29.99]:41158 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389862AbgFWUXE (ORCPT ); Tue, 23 Jun 2020 16:23:04 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 E9F502064B; Tue, 23 Jun 2020 20:23:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592943784; bh=HZ2ifpDmMjjxo73WjnqemiqePyzHTWnCg2nXFzCRFc0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rKZwtkdP/iv+gLSSOsRbKUDN78WGxwKfpTvzNzoLajKfNBn6J5dlGMo8askEWYB32 0LZ+D1f8/hgsk6sMNbbq/+34rhWUcXwbQuMCa9nE6LOvBzgWNj3vm0ETk3dDQpxpPW n2yZ7Lf63D2K7nDQvBZgpcnd3NrzAx/PwZWJfZ4c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jon Derrick , Lorenzo Pieralisi , Rob Herring , Sasha Levin Subject: [PATCH 5.4 049/314] PCI: pci-bridge-emul: Fix PCIe bit conflicts Date: Tue, 23 Jun 2020 21:54:04 +0200 Message-Id: <20200623195341.162137621@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200623195338.770401005@linuxfoundation.org> References: <20200623195338.770401005@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jon Derrick [ Upstream commit c88d19181771bd189147681ef38fc1533ebeff4c ] This patch fixes two bit conflicts in the pci-bridge-emul driver: 1. Bit 3 of Device Status (19 of Device Control) is marked as both Write-1-to-Clear and Read-Only. It should be Write-1-to-Clear. The Read-Only and Reserved bitmasks are shifted by 1 bit due to this error. 2. Bit 12 of Slot Control is marked as both Read-Write and Reserved. It should be Read-Write. Link: https://lore.kernel.org/r/20200511162117.6674-2-jonathan.derrick@intel.com Signed-off-by: Jon Derrick Signed-off-by: Lorenzo Pieralisi Acked-by: Rob Herring Signed-off-by: Sasha Levin --- drivers/pci/pci-bridge-emul.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c index 5fd90105510d9..d3b6b9a056185 100644 --- a/drivers/pci/pci-bridge-emul.c +++ b/drivers/pci/pci-bridge-emul.c @@ -195,8 +195,8 @@ static const struct pci_bridge_reg_behavior pcie_cap_regs_behavior[] = { * RO, the rest is reserved */ .w1c = GENMASK(19, 16), - .ro = GENMASK(20, 19), - .rsvd = GENMASK(31, 21), + .ro = GENMASK(21, 20), + .rsvd = GENMASK(31, 22), }, [PCI_EXP_LNKCAP / 4] = { @@ -236,7 +236,7 @@ static const struct pci_bridge_reg_behavior pcie_cap_regs_behavior[] = { PCI_EXP_SLTSTA_CC | PCI_EXP_SLTSTA_DLLSC) << 16, .ro = (PCI_EXP_SLTSTA_MRLSS | PCI_EXP_SLTSTA_PDS | PCI_EXP_SLTSTA_EIS) << 16, - .rsvd = GENMASK(15, 12) | (GENMASK(15, 9) << 16), + .rsvd = GENMASK(15, 13) | (GENMASK(15, 9) << 16), }, [PCI_EXP_RTCTL / 4] = {