From: kernel test robot <lkp@intel.com>
To: Umang Jain <uajain@igalia.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
0day robot <lkp@intel.com>
Subject: drivers/usb/early/xhci-dbc.c:657:22: warning: unused variable 'offset'
Date: Thu, 04 Jun 2026 23:46:31 +0200 [thread overview]
Message-ID: <202606042320.kigKLoga-lkp@intel.com> (raw)
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 <lkp@intel.com>
| 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
reply other threads:[~2026-06-04 21:47 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202606042320.kigKLoga-lkp@intel.com \
--to=lkp@intel.com \
--cc=llvm@lists.linux.dev \
--cc=oe-kbuild-all@lists.linux.dev \
--cc=uajain@igalia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox