tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 33a5644b70e15c265ec94eb3726216950a1476ef commit: 373ce97bdbb6378acf984656798aff4bb706a447 [29971/30000] ipvlan: support use xdp native mode config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20241011/202410111924.i3Aw2F5F-lkp@i...) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241011/202410111924.i3Aw2F5F-lkp@i...)

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/202410111924.i3Aw2F5F-lkp@intel.com/

All warnings (new ones prefixed by >>):

...

drivers/net/ipvlan/ipvlan_main.c:431:19: warning: variable 'old_prog' set but not used [-Wunused-but-set-variable]

431 | struct bpf_prog *old_prog; | ^ 1 warning generated.

vim +/old_prog +431 drivers/net/ipvlan/ipvlan_main.c

426 427 static int ipvlan_xdp_set(struct net_device *dev, struct bpf_prog *prog, 428 struct netlink_ext_ack *extack) 429 { 430 struct ipvl_dev *priv = netdev_priv(dev);

431 struct bpf_prog *old_prog;

432 433 old_prog = rtnl_dereference(priv->xdp_prog); 434 rcu_assign_pointer(priv->xdp_prog, prog); 435 return 0; 436 } 437