From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58279C07E98 for ; Sat, 3 Jul 2021 09:04:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3A3CB61440 for ; Sat, 3 Jul 2021 09:04:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230089AbhGCJGt (ORCPT ); Sat, 3 Jul 2021 05:06:49 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:33885 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229582AbhGCJGt (ORCPT ); Sat, 3 Jul 2021 05:06:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1625303055; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=TVu0raAXHHac8RYBeboQlPHsVSFx1+2WCdPZevKx+R0=; b=EVFXqqoBc85nnNKiYKr/a03krcowvMv+XbMOLvPBBH0YIGt1cMcahHe3rVn2tRK5kI7qM7 W1Vf1Okc9ILQdyeKkdZ5WKShGh7IQB31afeHJAzcYwwhonZoMJD7k4DTzYiGemAtmSTvAf WM1hspD8jk9A+UJjjZxS87iVWI1LrhA= Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-266-X0vpI8kfNpmnalXYWuHW1g-1; Sat, 03 Jul 2021 05:04:14 -0400 X-MC-Unique: X0vpI8kfNpmnalXYWuHW1g-1 Received: by mail-wm1-f72.google.com with SMTP id j38-20020a05600c1c26b02901dbf7d18ff8so7537752wms.8 for ; Sat, 03 Jul 2021 02:04:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=TVu0raAXHHac8RYBeboQlPHsVSFx1+2WCdPZevKx+R0=; b=TSBuInW2c6ZT1EARGgVa2srY68MbekEEoXXeKHG2GdOZSwWuKZnCpKZVdWIdR9LMi+ MHbSVMB40KFJhW87lS9iuxvm7l05Cn+kx5hyHwe3of9b31DUY1SawN2d3aPiIAdobrW4 Aj0ymIpoXY6oZ0Darqv5jKXD+qoAIZ6CzL451oegbfoAKEUrgvMHesHrPIBL+YnhgbrB Uk6dlpD0J7N1/gUfuU4NW8LBxHCOI8JJU6JFFr87BihQmcZ5z9I/wmAfXsNwVq0rAm3K 1NMuVH2N+fjz9RDSqFYjXCDTwEiF3q7fMfTlcQlFXVQwIOaNEpXx1Z4T8qagssi2IInr sAbA== X-Gm-Message-State: AOAM531RErbqEr8xg+pAqUYYffNO7ggi3GggKyo5I6gdIGegA0qpbHp9 muznA7XWHgQyoqw+03Pg/sUe52hfby6T3R8q3eu5E+lg5CVAju5/LnfKdWd7h+9reWcP5H1Hi++ 3AuK0ABQRCmOLatDq X-Received: by 2002:a05:600c:1d06:: with SMTP id l6mr1310992wms.111.1625303051925; Sat, 03 Jul 2021 02:04:11 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwBiMbxnrnsML4eQwt8oUtcimEaS5j9QhAj9zlj+jkBSqLAfDER1GiUjarz9whoxVL6duyUJw== X-Received: by 2002:a05:600c:1d06:: with SMTP id l6mr1310965wms.111.1625303051644; Sat, 03 Jul 2021 02:04:11 -0700 (PDT) Received: from redhat.com ([2.55.4.39]) by smtp.gmail.com with ESMTPSA id 2sm5714024wrz.87.2021.07.03.02.04.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 03 Jul 2021 02:04:11 -0700 (PDT) Date: Sat, 3 Jul 2021 05:04:07 -0400 From: "Michael S. Tsirkin" To: kernel test robot Cc: Zhu Lingshan , jasowang@redhat.com, clang-built-linux@googlegroups.com, kbuild-all@lists.01.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org Subject: Re: [PATCH 2/3] vDPA/ifcvf: implement management netlink framework for ifcvf Message-ID: <20210703050320-mutt-send-email-mst@kernel.org> References: <20210630082145.5729-3-lingshan.zhu@intel.com> <202107010221.pN7dwv6A-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202107010221.pN7dwv6A-lkp@intel.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, Jul 01, 2021 at 03:04:09AM +0800, kernel test robot wrote: > Hi Zhu, > > Thank you for the patch! Perhaps something to improve: > > [auto build test WARNING on linus/master] > [also build test WARNING on v5.13 next-20210630] > [If your patch is applied to the wrong git tree, kindly drop us a note. > And when submitting patch, we suggest to use '--base' as documented in > https://git-scm.com/docs/git-format-patch] > > url: https://github.com/0day-ci/linux/commits/Zhu-Lingshan/vDPA-ifcvf-implement-management-netlink-framework/20210630-162940 > base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 007b350a58754a93ca9fe50c498cc27780171153 > config: x86_64-randconfig-a015-20210630 (attached as .config) > compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d21d5472501460933e78aead04cf59579025ba4) > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # install x86_64 cross compiling tool for clang build > # apt-get install binutils-x86-64-linux-gnu > # https://github.com/0day-ci/linux/commit/7ea782fbd896e1a5b3c01b29f4929773748a525f > git remote add linux-review https://github.com/0day-ci/linux > git fetch --no-tags linux-review Zhu-Lingshan/vDPA-ifcvf-implement-management-netlink-framework/20210630-162940 > git checkout 7ea782fbd896e1a5b3c01b29f4929773748a525f > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot > > All warnings (new ones prefixed by >>): > > >> drivers/vdpa/ifcvf/ifcvf_main.c:612:14: warning: variable 'adapter' is uninitialized when used here [-Wuninitialized] > put_device(&adapter->vdpa.dev); > ^~~~~~~ > drivers/vdpa/ifcvf/ifcvf_main.c:546:31: note: initialize the variable 'adapter' to silence this warning > struct ifcvf_adapter *adapter; > ^ > = NULL > 1 warning generated. > Actually the problem is real and this is almost surely the wrong fix. We need an extra label to skip using put_device when adapter was not yet initialized. > vim +/adapter +612 drivers/vdpa/ifcvf/ifcvf_main.c > > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 541 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 542 static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id) > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 543 { > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 544 struct ifcvf_vdpa_mgmt_dev *ifcvf_mgmt_dev; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 545 struct device *dev = &pdev->dev; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 546 struct ifcvf_adapter *adapter; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 547 u32 dev_type; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 548 int ret; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 549 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 550 ifcvf_mgmt_dev = kzalloc(sizeof(struct ifcvf_vdpa_mgmt_dev), GFP_KERNEL); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 551 if (!ifcvf_mgmt_dev) { > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 552 IFCVF_ERR(pdev, "Failed to alloc memory for the vDPA management device\n"); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 553 return -ENOMEM; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 554 } > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 555 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 556 dev_type = get_dev_type(pdev); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 557 switch (dev_type) { > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 558 case VIRTIO_ID_NET: > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 559 ifcvf_mgmt_dev->mdev.id_table = id_table_net; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 560 break; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 561 case VIRTIO_ID_BLOCK: > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 562 ifcvf_mgmt_dev->mdev.id_table = id_table_blk; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 563 break; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 564 default: > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 565 IFCVF_ERR(pdev, "VIRTIO ID %u not supported\n", dev_type); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 566 ret = -EOPNOTSUPP; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 567 goto err; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 568 } > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 569 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 570 ifcvf_mgmt_dev->mdev.ops = &ifcvf_vdpa_mgmt_dev_ops; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 571 ifcvf_mgmt_dev->mdev.device = dev; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 572 ifcvf_mgmt_dev->pdev = pdev; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 573 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 574 ret = pcim_enable_device(pdev); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 575 if (ret) { > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 576 IFCVF_ERR(pdev, "Failed to enable device\n"); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 577 goto err; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 578 } > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 579 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 580 ret = pcim_iomap_regions(pdev, BIT(0) | BIT(2) | BIT(4), > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 581 IFCVF_DRIVER_NAME); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 582 if (ret) { > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 583 IFCVF_ERR(pdev, "Failed to request MMIO region\n"); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 584 goto err; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 585 } > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 586 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 587 ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 588 if (ret) { > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 589 IFCVF_ERR(pdev, "No usable DMA configuration\n"); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 590 goto err; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 591 } > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 592 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 593 ret = devm_add_action_or_reset(dev, ifcvf_free_irq_vectors, pdev); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 594 if (ret) { > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 595 IFCVF_ERR(pdev, > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 596 "Failed for adding devres for freeing irq vectors\n"); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 597 goto err; > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 598 } > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 599 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 600 pci_set_master(pdev); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 601 > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 602 ret = vdpa_mgmtdev_register(&ifcvf_mgmt_dev->mdev); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 603 if (ret) { > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 604 IFCVF_ERR(pdev, > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 605 "Failed to initialize the management interfaces\n"); > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 606 goto err; > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 607 } > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 608 > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 609 return 0; > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 610 > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 611 err: > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 @612 put_device(&adapter->vdpa.dev); > 7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2021-06-30 613 kfree(ifcvf_mgmt_dev); > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 614 return ret; > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 615 } > 5a2414bc454e89 drivers/virtio/vdpa/ifcvf/ifcvf_main.c Zhu Lingshan 2020-03-26 616 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org