From patchwork Tue Aug 18 21:13:49 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Guilherme G. Piccoli" X-Patchwork-Id: 508504 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id B75D4140562 for ; Wed, 19 Aug 2015 07:33:13 +1000 (AEST) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 99BF81A1D84 for ; Wed, 19 Aug 2015 07:33:13 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from e24smtp05.br.ibm.com (e24smtp05.br.ibm.com [32.104.18.26]) (using TLSv1 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 1EBB41A04EF for ; Wed, 19 Aug 2015 07:14:00 +1000 (AEST) Received: from /spool/local by e24smtp05.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 18 Aug 2015 18:13:55 -0300 Received: from d24dlp01.br.ibm.com (9.18.248.204) by e24smtp05.br.ibm.com (10.172.0.141) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Tue, 18 Aug 2015 18:13:54 -0300 X-Helo: d24dlp01.br.ibm.com X-MailFrom: gpiccoli@linux.vnet.ibm.com X-RcptTo: linuxppc-dev@lists.ozlabs.org Received: from d24relay02.br.ibm.com (d24relay02.br.ibm.com [9.13.184.26]) by d24dlp01.br.ibm.com (Postfix) with ESMTP id 01379352007C for ; Tue, 18 Aug 2015 17:12:46 -0400 (EDT) Received: from d24av04.br.ibm.com (d24av04.br.ibm.com [9.8.31.97]) by d24relay02.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t7ILCAgn27394408 for ; Tue, 18 Aug 2015 18:12:11 -0300 Received: from d24av04.br.ibm.com (localhost [127.0.0.1]) by d24av04.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id t7ILDoeK010248 for ; Tue, 18 Aug 2015 18:13:51 -0300 Received: from localhost ([9.8.3.166]) by d24av04.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id t7ILDoEK010241; Tue, 18 Aug 2015 18:13:50 -0300 From: "Guilherme G. Piccoli" To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 1/2] PCI: Make pci_msi_setup_pci_dev() non-static for use by arch code Date: Tue, 18 Aug 2015 18:13:49 -0300 Message-Id: <1439932430-13375-2-git-send-email-gpiccoli@linux.vnet.ibm.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1439932430-13375-1-git-send-email-gpiccoli@linux.vnet.ibm.com> References: <1439932430-13375-1-git-send-email-gpiccoli@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15081821-0033-0000-0000-00000343385C X-Mailman-Approved-At: Wed, 19 Aug 2015 07:32:15 +1000 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: paulus@samba.org, gwshan@linux.vnet.ibm.com, gpiccoli@linux.vnet.ibm.com MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Commit 1851617cd2 ("PCI/MSI: Disable MSI at enumeration even if kernel doesn't support MSI") changed the location of the code that disables MSI/MSI-X interrupts at PCI probe time in devices that have this flag set. It moved the code from pci_msi_init_pci_dev() to a new function named pci_msi_setup_pci_dev(), called by pci_setup_device(). Since then, the pSeries platform of the powerpc architecture needs to disable MSI at PCI probe time manually, as the code flow doesn't reach pci_setup_device(). For doing so, it wants to call pci_msi_setup_pci_dev(). This patch makes the required function non-static, so that it will be called on PCI probe path on powerpc pSeries platform in next patch. Signed-off-by: Guilherme G. Piccoli --- drivers/pci/probe.c | 2 +- include/linux/pci.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index cefd636..520c5b6 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1103,7 +1103,7 @@ int pci_cfg_space_size(struct pci_dev *dev) #define LEGACY_IO_RESOURCE (IORESOURCE_IO | IORESOURCE_PCI_FIXED) -static void pci_msi_setup_pci_dev(struct pci_dev *dev) +void pci_msi_setup_pci_dev(struct pci_dev *dev) { /* * Disable the MSI hardware to avoid screaming interrupts diff --git a/include/linux/pci.h b/include/linux/pci.h index 8a0321a..860c751 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1202,6 +1202,7 @@ struct msix_entry { u16 entry; /* driver uses to specify entry, OS writes */ }; +void pci_msi_setup_pci_dev(struct pci_dev *dev); #ifdef CONFIG_PCI_MSI int pci_msi_vec_count(struct pci_dev *dev);