drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c:1807:1: warning: unused variable 'iwl_dbgfs_dbg_time_point_ops'

From: kernel test robot
Date: Thu May 13 2021 - 05:06:25 EST

Hi Mordechay,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c06a2ba62fc401b7aaefd23f5d0bc06d2457ccc1
commit: 9dbb62a29042e543ab6671dc12c1473c3cbc58c2 iwlwifi: mvm: add debugfs entry to trigger a dump as any time-point
date: 3 months ago
config: arm64-randconfig-r001-20210513 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a0fed635fe1701470062495a6ffee1c608f3f1bc)
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 arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9dbb62a29042e543ab6671dc12c1473c3cbc58c2
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 9dbb62a29042e543ab6671dc12c1473c3cbc58c2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c:1807:1: warning: unused variable 'iwl_dbgfs_dbg_time_point_ops' [-Wunused-const-variable]
MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);
^
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c:1554:2: note: expanded from macro 'MVM_DEBUGFS_WRITE_FILE_OPS'
_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
^
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.h:39:37: note: expanded from macro '_MVM_DEBUGFS_WRITE_FILE_OPS'
static const struct file_operations iwl_dbgfs_##name##_ops = { \
^
<scratch space>:48:1: note: expanded from here
iwl_dbgfs_dbg_time_point_ops
^
1 warning generated.


vim +/iwl_dbgfs_dbg_time_point_ops +1807 drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c

1780
1781 /* Device wide debugfs entries */
1782 MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget);
1783 MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8);
1784 MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8);
1785 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1786 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1787 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1788 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1789 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1790 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1791 MVM_DEBUGFS_READ_FILE_OPS(stations);
1792 MVM_DEBUGFS_READ_FILE_OPS(rs_data);
1793 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1794 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1795 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1796 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1797 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1798 MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
1799 MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
1800 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1801 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1802 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1803 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1804 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1805 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1806 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
> 1807 MVM_DEBUGFS_WRITE_FILE_OPS(dbg_time_point, 64);
1808 MVM_DEBUGFS_WRITE_FILE_OPS(indirection_tbl,
1809 (IWL_RSS_INDIRECTION_TABLE_SIZE * 2));
1810 MVM_DEBUGFS_WRITE_FILE_OPS(inject_packet, 512);
1811 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie, 512);
1812 MVM_DEBUGFS_WRITE_FILE_OPS(inject_beacon_ie_restore, 512);
1813

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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