From patchwork Fri Jul 6 13:26:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gustavo Pimentel X-Patchwork-Id: 940495 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=synopsys.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=synopsys.com header.i=@synopsys.com header.b="jG1nNlji"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41MbC90s2hz9s4r for ; Fri, 6 Jul 2018 23:28:21 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933532AbeGFN12 (ORCPT ); Fri, 6 Jul 2018 09:27:28 -0400 Received: from smtprelay.synopsys.com ([198.182.60.111]:37428 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753816AbeGFN0c (ORCPT ); Fri, 6 Jul 2018 09:26:32 -0400 Received: from mailhost.synopsys.com (mailhost1.synopsys.com [10.12.238.239]) by smtprelay.synopsys.com (Postfix) with ESMTP id 77C0E10C1AB5; Fri, 6 Jul 2018 06:26:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1530883591; bh=im0yx8NLmmk4YSOCHqr5ZTYVBeurvysuHYRHrMrQlKo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=jG1nNljiZXveppqiDvGuQifVOgItx0wJ17QN6tp8Re1wR7N29BXDpxwqRrjTYmti3 Su6m/Rfv4oLyPZNFTRXsu0seDn7Fl327WzoPv6+OjDre6cECR8ASIxl+KdHBx181QF vjkRiTPqxJQd38L0k+kDTvL2vp/5oFWdBLWTN6aUCkfLKPXYxG0YF5XGdWb94rLvBM W6NaFlgm+mp0BtN2y6YF9bEy3l+iZAS73/2T/Y2dsp0j8IkqMwY5Eqzxb+rUwxkj5V DW6uSxcowYYTV1I7ykqCnQKki9Ctq2/Ah0dMzptWcClRfx/I0eBz6dB2GZRhw1081H uiglc44/ydHqw== Received: from pt02.synopsys.com (pt02.synopsys.com [10.107.23.240]) by mailhost.synopsys.com (Postfix) with ESMTP id 33DB15E9B; Fri, 6 Jul 2018 06:26:31 -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 038173F7A3; Fri, 6 Jul 2018 14:26:30 +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 v7 11/11] PCI: endpoint: Add MSI set maximum restriction. Date: Fri, 6 Jul 2018 14:26:23 +0100 Message-Id: <51871d1b368bc222213bbbad00f5da5620c37373.1530877028.git.gustavo.pimentel@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add pci_epc_set_msi() maximum 32 interrupts validation. Signed-off-by: Gustavo Pimentel Acked-by: Kishon Vijay Abraham I --- Change v4->v5: - New patch file. Change v5->v6: - Nothing changed, just to follow the patch set version. Change v6->v7: - Nothing changed, just to follow the patch set version. 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)