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=-2.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 E5921C5CFEB for ; Mon, 9 Jul 2018 17:44:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8EB74208A2 for ; Mon, 9 Jul 2018 17:44:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="Pd119mJB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8EB74208A2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=synopsys.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933970AbeGIRow (ORCPT ); Mon, 9 Jul 2018 13:44:52 -0400 Received: from smtprelay.synopsys.com ([198.182.60.111]:56707 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933800AbeGIRm6 (ORCPT ); Mon, 9 Jul 2018 13:42:58 -0400 Received: from mailhost.synopsys.com (mailhost3.synopsys.com [10.12.238.238]) by smtprelay.synopsys.com (Postfix) with ESMTP id C31A310C1B11; Mon, 9 Jul 2018 10:42:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1531158177; bh=W20p2o9rztSoy4c/asUzVmF0OpbORizZSgTD8uF3fYQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=Pd119mJB6UcywPR7LNlOOa7Qu/hOvbZRQkN906JpEhvjvRx71T/PaorRSVXbsZ7Tp leJVnsZDVyU1WuKrSKP+Tz2pHloLQimY30cPJOAYVQmdv37QD6WuktZTPbwr7cWFdY nbKyRC6+BLMW3sfd/CO+FkgvXO0V84hNKFvSi1rnmZrdhI+Yh5enxQL5gHBZIOEfFc gLNOYbSoQ8CmfiE4Tn3WMBg2rUJymhy/JLAWhkEQSIglgF+wJXrgrwERl0X7Gl/4Uu PcuFBFvlfNwHEH+J50QVTri46AORg9DJuUTIPHwuNM4yo60wFieBUJF21MHJBaSiiT LTKJmO6uuTjrw== Received: from pt02.synopsys.com (pt02.synopsys.com [10.107.23.240]) by mailhost.synopsys.com (Postfix) with ESMTP id 76CF83727; Mon, 9 Jul 2018 10:42:57 -0700 (PDT) Received: from UbuntuMate-64Bits.internal.synopsys.com (gustavo-e7480.internal.synopsys.com [10.107.25.102]) by pt02.synopsys.com (Postfix) with ESMTP id 12F3F3EDAF; Mon, 9 Jul 2018 18:42:56 +0100 (WEST) From: Gustavo Pimentel To: bhelgaas@google.com, lorenzo.pieralisi@arm.com, Joao.Pinto@synopsys.com, jingoohan1@gmail.com, kishon@ti.com, adouglas@cadence.com, jesper.nilsson@axis.com, shawn.lin@rock-chips.com Cc: linux-pci@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Gustavo Pimentel Subject: [PATCH v9 12/12] PCI: endpoint: Add MSI set maximum restriction Date: Mon, 9 Jul 2018 18:42:50 +0100 Message-Id: <62cd7313fad048e1f20f7e3c7cc0380c88dd3c4e.1531155252.git.gustavo.pimentel@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add pci_epc_set_msi() maximum 32 interrupts validation. Signed-off-by: Gustavo Pimentel Acked-by: Kishon Vijay Abraham I --- drivers/pci/endpoint/pci-epc-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c index c72e656..094dcc3 100644 --- a/drivers/pci/endpoint/pci-epc-core.c +++ b/drivers/pci/endpoint/pci-epc-core.c @@ -201,7 +201,8 @@ int pci_epc_set_msi(struct pci_epc *epc, u8 func_no, u8 interrupts) u8 encode_int; unsigned long flags; - if (IS_ERR_OR_NULL(epc) || func_no >= epc->max_functions) + if (IS_ERR_OR_NULL(epc) || func_no >= epc->max_functions || + interrupts > 32) return -EINVAL; if (!epc->ops->set_msi) -- 2.7.4