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X-CSE-ConnectionGUID: sj0NehpKQ82HsQt7GWlVXA== X-CSE-MsgGUID: FZtoBkJQTYekawLW+XhzFQ== X-IronPort-AV: E=McAfee;i="6800,10657,11807"; a="81353901" X-IronPort-AV: E=Sophos;i="6.24,187,1774335600"; d="scan'208";a="81353901" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jun 2026 14:47:06 -0700 X-CSE-ConnectionGUID: zEOSAifTTLCnvAi32RLZcw== X-CSE-MsgGUID: XO6QoCIvSXSpMBCn1CmhwQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,187,1774335600"; d="scan'208";a="244721978" Received: from igk-lkp-server01.igk.intel.com (HELO 892db79562d4) ([10.211.93.152]) by orviesa009.jf.intel.com with ESMTP; 04 Jun 2026 14:47:04 -0700 Received: from kbuild by 892db79562d4 with local (Exim 4.98.2) (envelope-from ) id 1wVFu1-000000002Ob-3438; Thu, 04 Jun 2026 21:47:01 +0000 Date: Thu, 04 Jun 2026 23:46:31 +0200 From: kernel test robot To: Umang Jain Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, 0day robot Subject: drivers/usb/early/xhci-dbc.c:657:22: warning: unused variable 'offset' Message-ID: <202606042320.kigKLoga-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/intel-lab-lkp/linux/commits/Umang-Jain/usb-early-xhci-dbc-Track-early_ioremap-size-separately/20260604-225542 head: 2ecba7a3b238002d00204460340708e61b6bee82 commit: 2ecba7a3b238002d00204460340708e61b6bee82 WIP: early: xhci-xdbc: Map lower and with 0 offset to partially work date: 7 hours ago config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260604/202606042320.kigKLoga-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project f43d6834093b19baf79beda8c0337ab020ac5f17) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260604/202606042320.kigKLoga-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202606042320.kigKLoga-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/usb/early/xhci-dbc.c:657:22: warning: unused variable 'offset' [-Wunused-variable] 657 | u32 bus, dev, func, offset; | ^~~~~~ 1 warning generated. vim +/offset +657 drivers/usb/early/xhci-dbc.c aeb9dd1de98c1a Lu Baolu 2017-03-21 653 b0ae33a2d2fb6c Peter Zijlstra 2022-03-04 654 int __init early_xdbc_parse_parameter(char *s, int keep_early) aeb9dd1de98c1a Lu Baolu 2017-03-21 655 { aeb9dd1de98c1a Lu Baolu 2017-03-21 656 unsigned long dbgp_num = 0; aeb9dd1de98c1a Lu Baolu 2017-03-21 @657 u32 bus, dev, func, offset; 298ac860af9a0b Peter Zijlstra 2022-03-04 658 char *e; aeb9dd1de98c1a Lu Baolu 2017-03-21 659 int ret; aeb9dd1de98c1a Lu Baolu 2017-03-21 660 aeb9dd1de98c1a Lu Baolu 2017-03-21 661 if (!early_pci_allowed()) aeb9dd1de98c1a Lu Baolu 2017-03-21 662 return -EPERM; aeb9dd1de98c1a Lu Baolu 2017-03-21 663 b0ae33a2d2fb6c Peter Zijlstra 2022-03-04 664 early_console_keep = keep_early; aeb9dd1de98c1a Lu Baolu 2017-03-21 665 aeb9dd1de98c1a Lu Baolu 2017-03-21 666 if (xdbc.xdbc_reg) aeb9dd1de98c1a Lu Baolu 2017-03-21 667 return 0; aeb9dd1de98c1a Lu Baolu 2017-03-21 668 298ac860af9a0b Peter Zijlstra 2022-03-04 669 if (*s) { 298ac860af9a0b Peter Zijlstra 2022-03-04 670 dbgp_num = simple_strtoul(s, &e, 10); 298ac860af9a0b Peter Zijlstra 2022-03-04 671 if (s == e) aeb9dd1de98c1a Lu Baolu 2017-03-21 672 dbgp_num = 0; 298ac860af9a0b Peter Zijlstra 2022-03-04 673 } aeb9dd1de98c1a Lu Baolu 2017-03-21 674 aeb9dd1de98c1a Lu Baolu 2017-03-21 675 pr_notice("dbgp_num: %lu\n", dbgp_num); aeb9dd1de98c1a Lu Baolu 2017-03-21 676 aeb9dd1de98c1a Lu Baolu 2017-03-21 677 /* Locate the host controller: */ aeb9dd1de98c1a Lu Baolu 2017-03-21 678 ret = xdbc_find_dbgp(dbgp_num, &bus, &dev, &func); aeb9dd1de98c1a Lu Baolu 2017-03-21 679 if (ret) { aeb9dd1de98c1a Lu Baolu 2017-03-21 680 pr_notice("failed to locate xhci host\n"); aeb9dd1de98c1a Lu Baolu 2017-03-21 681 return -ENODEV; aeb9dd1de98c1a Lu Baolu 2017-03-21 682 } aeb9dd1de98c1a Lu Baolu 2017-03-21 683 aeb9dd1de98c1a Lu Baolu 2017-03-21 684 xdbc.vendor = read_pci_config_16(bus, dev, func, PCI_VENDOR_ID); aeb9dd1de98c1a Lu Baolu 2017-03-21 685 xdbc.device = read_pci_config_16(bus, dev, func, PCI_DEVICE_ID); aeb9dd1de98c1a Lu Baolu 2017-03-21 686 xdbc.bus = bus; aeb9dd1de98c1a Lu Baolu 2017-03-21 687 xdbc.dev = dev; aeb9dd1de98c1a Lu Baolu 2017-03-21 688 xdbc.func = func; aeb9dd1de98c1a Lu Baolu 2017-03-21 689 aeb9dd1de98c1a Lu Baolu 2017-03-21 690 /* Map the IO memory: */ aeb9dd1de98c1a Lu Baolu 2017-03-21 691 xdbc.xhci_base = xdbc_map_pci_mmio(bus, dev, func); aeb9dd1de98c1a Lu Baolu 2017-03-21 692 if (!xdbc.xhci_base) aeb9dd1de98c1a Lu Baolu 2017-03-21 693 return -EINVAL; aeb9dd1de98c1a Lu Baolu 2017-03-21 694 2ecba7a3b23800 Umang Jain 2026-06-04 695 xdbc.xdbc_reg = (struct xdbc_regs __iomem *)(xdbc.xhci_base); aeb9dd1de98c1a Lu Baolu 2017-03-21 696 aeb9dd1de98c1a Lu Baolu 2017-03-21 697 return 0; aeb9dd1de98c1a Lu Baolu 2017-03-21 698 } aeb9dd1de98c1a Lu Baolu 2017-03-21 699 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki