7:28 p.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3d5895cd351757f69c9a66fb5fc8cf19f454d773
commit: 7319a1cc3ca9f719e4ef1b1882f6fdb57d0719b8 net/mlx5e: TC, Refactor tc update skb
function
date: 4 months ago
config: x86_64-randconfig-r026-20210722 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
9625ca5b602616b2f5584e8a49ba93c52c141e40)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 7319a1cc3ca9f719e4ef1b1882f6fdb57d0719b8
# 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 <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
> drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c:653:14:
warning: variable 'reg_c1' set but not used [-Wunused-but-set-variable]
u32 reg_c0, reg_c1;
^
1 warning generated.
vim +/reg_c1 +653 drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
645
646 bool mlx5e_rep_tc_update_skb(struct mlx5_cqe64 *cqe,
647 struct sk_buff *skb,
648 struct mlx5e_tc_update_priv *tc_priv)
649 {
650 struct mlx5_mapped_obj mapped_obj;
651 struct mlx5_eswitch *esw;
652 struct mlx5e_priv *priv;
653 u32 reg_c0, reg_c1;
654 int err;
655
656 reg_c0 = (be32_to_cpu(cqe->sop_drop_qpn) & MLX5E_TC_FLOW_ID_MASK);
657 if (!reg_c0 || reg_c0 == MLX5_FS_DEFAULT_FLOW_TAG)
658 return true;
659
660 /* If reg_c0 is not equal to the default flow tag then skb->mark
661 * is not supported and must be reset back to 0.
662 */
663 skb->mark = 0;
664
665 reg_c1 = be32_to_cpu(cqe->ft_metadata);
666
667 priv = netdev_priv(skb->dev);
668 esw = priv->mdev->priv.eswitch;
669 err = mapping_find(esw->offloads.reg_c0_obj_pool, reg_c0, &mapped_obj);
670 if (err) {
671 netdev_dbg(priv->netdev,
672 "Couldn't find mapped object for reg_c0: %d, err: %d\n",
673 reg_c0, err);
674 return false;
675 }
676
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org