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GET /api/patches/53923/?format=api
{ "id": 53923, "url": "http://patchwork.dpdk.org/api/patches/53923/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20190530174819.1160221-5-benjamin.walker@intel.com/", "project": { "id": 1, "url": "http://patchwork.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20190530174819.1160221-5-benjamin.walker@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20190530174819.1160221-5-benjamin.walker@intel.com", "date": "2019-05-30T17:48:11", "name": "[04/12] eal/pci: Collapse two loops in rte_pci_get_iommu_class", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "c8db48174390b29a453009b707c8ac5012c18b72", "submitter": { "id": 487, "url": "http://patchwork.dpdk.org/api/people/487/?format=api", "name": "Walker, Benjamin", "email": "benjamin.walker@intel.com" }, "delegate": null, "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20190530174819.1160221-5-benjamin.walker@intel.com/mbox/", "series": [ { "id": 4830, "url": "http://patchwork.dpdk.org/api/series/4830/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=4830", "date": "2019-05-30T17:48:13", "name": "[01/12] eal: Make rte_eal_using_phys_addrs work sooner", "version": 1, "mbox": "http://patchwork.dpdk.org/series/4830/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/patches/53923/comments/", "check": "fail", "checks": "http://patchwork.dpdk.org/api/patches/53923/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 376501B99E;\n\tThu, 30 May 2019 19:48:49 +0200 (CEST)", "from mga07.intel.com (mga07.intel.com [134.134.136.100])\n\tby dpdk.org (Postfix) with ESMTP id DC7EF1B944\n\tfor <dev@dpdk.org>; Thu, 30 May 2019 19:48:29 +0200 (CEST)", "from fmsmga002.fm.intel.com ([10.253.24.26])\n\tby orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t30 May 2019 10:48:27 -0700", "from bwalker-desk.ch.intel.com ([143.182.136.145])\n\tby fmsmga002.fm.intel.com with ESMTP; 30 May 2019 10:48:27 -0700" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.60,532,1549958400\"; d=\"scan'208\";a=\"180020089\"", "From": "Ben Walker <benjamin.walker@intel.com>", "To": "dev@dpdk.org", "Cc": "Ben Walker <benjamin.walker@intel.com>", "Date": "Thu, 30 May 2019 10:48:11 -0700", "Message-Id": "<20190530174819.1160221-5-benjamin.walker@intel.com>", "X-Mailer": "git-send-email 2.20.1", "In-Reply-To": "<20190530174819.1160221-1-benjamin.walker@intel.com>", "References": "<20190530174819.1160221-1-benjamin.walker@intel.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[dpdk-dev] [PATCH 04/12] eal/pci: Collapse two loops in\n\trte_pci_get_iommu_class", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Two of these loops easily collapse into a single loop.\nThis sets the stage for future simplifications.\n\nSigned-off-by: Ben Walker <benjamin.walker@intel.com>\nChange-Id: I3353f2e3585808cebff3f11805f96e4a1cc7fb3a\n---\n drivers/bus/pci/linux/pci.c | 31 ++++++++++---------------------\n 1 file changed, 10 insertions(+), 21 deletions(-)", "diff": "diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c\nindex 70815e4f0..b7a66d717 100644\n--- a/drivers/bus/pci/linux/pci.c\n+++ b/drivers/bus/pci/linux/pci.c\n@@ -571,7 +571,6 @@ rte_pci_get_iommu_class(void)\n \tbool has_iova_va = false;\n \tbool is_bound_uio = false;\n \tbool iommu_no_va = false;\n-\tbool break_out;\n \tbool need_check;\n \tstruct rte_pci_device *dev = NULL;\n \tstruct rte_pci_driver *drv = NULL;\n@@ -592,8 +591,16 @@ rte_pci_get_iommu_class(void)\n \tFOREACH_DEVICE_ON_PCIBUS(dev) {\n \t\tif (dev->kdrv == RTE_KDRV_VFIO) {\n \t\t\tFOREACH_DRIVER_ON_PCIBUS(drv) {\n-\t\t\t\tif (drv->drv_flags & RTE_PCI_DRV_IOVA_AS_VA &&\n-\t\t\t\t rte_pci_match(drv, dev)) {\n+\t\t\t\tif (!rte_pci_match(drv, dev))\n+\t\t\t\t\tcontinue;\n+\n+\t\t\t\t/*\n+\t\t\t\t* just one PCI device needs to be checked out because\n+\t\t\t\t* the IOMMU hardware is the same for all of them.\n+\t\t\t\t*/\n+\t\t\t\tiommu_no_va = !pci_one_device_iommu_support_va(dev);\n+\n+\t\t\t\tif (drv->drv_flags & RTE_PCI_DRV_IOVA_AS_VA) {\n \t\t\t\t\thas_iova_va = true;\n \t\t\t\t\tbreak;\n \t\t\t\t}\n@@ -630,24 +637,6 @@ rte_pci_get_iommu_class(void)\n \t\t}\n \t}\n \n-\tbreak_out = false;\n-\tFOREACH_DEVICE_ON_PCIBUS(dev) {\n-\t\tFOREACH_DRIVER_ON_PCIBUS(drv) {\n-\t\t\tif (!rte_pci_match(drv, dev))\n-\t\t\t\tcontinue;\n-\t\t\t/*\n-\t\t\t * just one PCI device needs to be checked out because\n-\t\t\t * the IOMMU hardware is the same for all of them.\n-\t\t\t */\n-\t\t\tiommu_no_va = !pci_one_device_iommu_support_va(dev);\n-\t\t\tbreak_out = true;\n-\t\t\tbreak;\n-\t\t}\n-\n-\t\tif (break_out)\n-\t\t\tbreak;\n-\t}\n-\n #ifdef VFIO_PRESENT\n \tis_vfio_noiommu_enabled = rte_vfio_noiommu_is_enabled() == true ?\n \t\t\t\t\ttrue : false;\n", "prefixes": [ "04/12" ] }