From patchwork Fri Jul 13 15:56:44 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gustavo Pimentel X-Patchwork-Id: 943673 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="S+IVGMfh"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41RyBh0Rt0z9s0n for ; Sat, 14 Jul 2018 01:58:04 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730644AbeGMQNJ (ORCPT ); Fri, 13 Jul 2018 12:13:09 -0400 Received: from smtprelay.synopsys.com ([198.182.47.9]:57993 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730822AbeGMQME (ORCPT ); Fri, 13 Jul 2018 12:12:04 -0400 Received: from mailhost.synopsys.com (mailhost3.synopsys.com [10.12.238.238]) by smtprelay.synopsys.com (Postfix) with ESMTP id 6913E24E23E3; Fri, 13 Jul 2018 08:56:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1531497411; bh=ehkaiHzxqzj3X0frGz1XFFt9dOpOvUvrybjch26b/tI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=S+IVGMfh/SFS0doW8lFUymcZFfliIt6Ca79Ilid3Z4Qf1W242Kq59bukoo/sZhsJu 4G6L71Ty13h9VQfH2WZ/KfQY8O7pAD0IstIIVgzz7/Tcc+qSGTD9TQo1D7xRB2yrLp oz0QfaUQkDS67pYPUV+WJu4Wzsetfn/jIrjQsnU8fOlOVmkJrNpRmwLt5IzdAdB4yB 2Sdbhoh0bbRUF82BRlb+ZI+p6Csdj8nhQiO95Lu160Xl+vn6vtAh69hlxBf0BUnh80 RCl/Ktkhq0oDr2ijfF1pfAbWh7Y7c+nFhsj+EU8F+qyWEDMeJ3s0pZ9nQTNXyTL5/0 TNcuTK5NR8Uzg== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 1D3D430E0; Fri, 13 Jul 2018 08:56:51 -0700 (PDT) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 8F59D3E8F8; Fri, 13 Jul 2018 17:56:49 +0200 (CEST) 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 v10 12/12] PCI: endpoint: Add MSI set maximum restriction Date: Fri, 13 Jul 2018 17:56:44 +0200 Message-Id: <9dfb92025894fa5c7bc8f08ae43a58c2001319d6.1531496321.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. Change v7->v8: - Re-sending the patch series. Change v8->v9: - Nothing changed, just to follow the patch set version. Change v9->v10: - 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)