From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga09.intel.com ([134.134.136.24]:12305 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750940AbaIFKu1 (ORCPT ); Sat, 6 Sep 2014 06:50:27 -0400 From: Jeff Kirsher To: bhelgaas@google.com Cc: Megan Kamiya , linux-pci@vger.kernel.org, Jeff Kirsher Subject: [PATCH] pci: Parenthesize parameters in PCI_DEVID and PCI_VPD_LRDT_ID macros Date: Sat, 6 Sep 2014 03:49:56 -0700 Message-Id: <1410000596-24190-1-git-send-email-jeffrey.t.kirsher@intel.com> Sender: linux-pci-owner@vger.kernel.org List-ID: From: Megan Kamiya Add parentheses around parameters in PCI_DEVID and PCI_VPD_LRDT_ID macros to prevent possible expansion errors as described by the CERT Secure Coding Standard: PRE01-C: Use parentheses within macros around parameter names Signed-off-by: Megan Kamiya Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- include/linux/pci.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/pci.h b/include/linux/pci.h index 61978a4..cb744f3 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -45,7 +45,7 @@ * In the interest of not exposing interfaces to user-space unnecessarily, * the following kernel-only defines are being added here. */ -#define PCI_DEVID(bus, devfn) ((((u16)bus) << 8) | devfn) +#define PCI_DEVID(bus, devfn) ((((u16)(bus)) << 8) | (devfn)) /* return bus from PCI devid = ((u16)bus_number) << 8) | devfn */ #define PCI_BUS_NUM(x) (((x) >> 8) & 0xff) @@ -1701,7 +1701,7 @@ bool pci_acs_path_enabled(struct pci_dev *start, struct pci_dev *end, u16 acs_flags); #define PCI_VPD_LRDT 0x80 /* Large Resource Data Type */ -#define PCI_VPD_LRDT_ID(x) (x | PCI_VPD_LRDT) +#define PCI_VPD_LRDT_ID(x) ((x) | PCI_VPD_LRDT) /* Large Resource Data Type Tag Item Names */ #define PCI_VPD_LTIN_ID_STRING 0x02 /* Identifier String */ -- 1.9.3