[tnguy-next-queue:dev-queue 107/121] drivers/net/ethernet/intel/ice/ice_txrx_lib.c:293:9: sparse: sparse: context imbalance in 'ice_finalize_xdp_rx' - different lock contexts for basic block

[tnguy-next-queue:dev-queue 107/121] drivers/net/ethernet/intel/ice/ice_txrx_lib.c:293:9: sparse: sparse: context imbalance in 'ice_finalize_xdp_rx' - different lock contexts for basic block

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
CC: Intel Wired LAN <intel-wired-lan@lists.osuosl.org>
CC: linux-kernel(a)vger.kernel.org
TO: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
CC: Tony Nguyen <anthony.l.nguyen@intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git dev-queue
head:   c76f20222c17011e295baee71dbaf7124984636c
commit: 44e4ab6e20ae04ed8e42f178831aaf69f5af5219 [107/121] ice: introduce XDP_TX fallback path
:::::: branch date: 4 days ago
:::::: commit date: 6 days ago
config: alpha-randconfig-s032-20210713 (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git/commit/?id=44e4ab6e20ae04ed8e42f178831aaf69f5af5219
        git remote add tnguy-next-queue https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git
        git fetch --no-tags tnguy-next-queue dev-queue
        git checkout 44e4ab6e20ae04ed8e42f178831aaf69f5af5219
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=alpha SHELL=/bin/bash drivers/net/ethernet/intel/ice/

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


sparse warnings: (new ones prefixed by >>)
>> drivers/net/ethernet/intel/ice/ice_txrx_lib.c:293:9: sparse: sparse: context imbalance in 'ice_finalize_xdp_rx' - different lock contexts for basic block
--
>> drivers/net/ethernet/intel/ice/ice_txrx.c:607:17: sparse: sparse: context imbalance in 'ice_run_xdp' - different lock contexts for basic block
>> drivers/net/ethernet/intel/ice/ice_txrx.c:686:9: sparse: sparse: context imbalance in 'ice_xdp_xmit' - different lock contexts for basic block

vim +/ice_finalize_xdp_rx +293 drivers/net/ethernet/intel/ice/ice_txrx_lib.c

0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  278  
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  279  /**
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  280   * ice_finalize_xdp_rx - Bump XDP Tx tail and/or flush redirect map
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  281   * @rx_ring: Rx ring
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  282   * @xdp_res: Result of the receive batch
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  283   *
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  284   * This function bumps XDP Tx tail and/or flush redirect map, and
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  285   * should be called when a batch of packets has been processed in the
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  286   * napi loop.
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  287   */
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  288  void ice_finalize_xdp_rx(struct ice_ring *rx_ring, unsigned int xdp_res)
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  289  {
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  290  	if (xdp_res & ICE_XDP_REDIR)
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  291  		xdp_do_flush_map();
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04  292  
0891d6d4b1fe1b Krzysztof Kazimierczak 2019-11-04 @293  	if (xdp_res & ICE_XDP_TX) {

:::::: The code at line 293 was first introduced by commit
:::::: 0891d6d4b1fe1becf1a77353b03449955820084b ice: Move common functions to ice_txrx_lib.c

:::::: TO: Krzysztof Kazimierczak <krzysztof.kazimierczak@intel.com>
:::::: CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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

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