Hi Ryan, kernel test robot noticed the following build warnings: [auto build test WARNING on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Ryan-Wilson/bpf-Add-multi-prog-support-for-XDP-BPF-programs/20241115-015104 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20241114170721.3939099-1-ryantimwilson%40gmail.com patch subject: [PATCH bpf-next] bpf: Add multi-prog support for XDP BPF programs config: x86_64-randconfig-122-20241117 (https://download.01.org/0day-ci/archive/20241117/202411172107.yHI94Ps2-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241117/202411172107.yHI94Ps2-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202411172107.yHI94Ps2-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) net/core/dev.c:3387:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ net/core/dev.c:3387:23: sparse: expected restricted __wsum [usertype] csum net/core/dev.c:3387:23: sparse: got unsigned int net/core/dev.c:3387:23: sparse: sparse: cast from restricted __wsum >> net/core/dev.c:9416:76: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct bpf_mprog_entry *entry @@ got struct bpf_mprog_entry [noderef] __rcu * @@ net/core/dev.c:9416:76: sparse: expected struct bpf_mprog_entry *entry net/core/dev.c:9416:76: sparse: got struct bpf_mprog_entry [noderef] __rcu * net/core/dev.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/xarray.h, ...): include/linux/page-flags.h:237:46: sparse: sparse: self-comparison always evaluates to false include/linux/page-flags.h:237:46: sparse: sparse: self-comparison always evaluates to false net/core/dev.c:3837:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block net/core/dev.c:4800:9: sparse: sparse: context imbalance in 'kick_defer_list_purge' - different lock contexts for basic block net/core/dev.c:4901:19: sparse: sparse: context imbalance in 'enqueue_to_backlog' - different lock contexts for basic block net/core/dev.c:5315:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block net/core/dev.c:5996:9: sparse: sparse: context imbalance in 'flush_backlog' - different lock contexts for basic block net/core/dev.c:6123:9: sparse: sparse: context imbalance in 'process_backlog' - different lock contexts for basic block vim +9416 net/core/dev.c 9409 9410 u8 dev_xdp_prog_count(struct net_device *dev) 9411 { 9412 u8 count = 0; 9413 int i; 9414 9415 for (i = 0; i < __MAX_XDP_MODE; i++) > 9416 if (dev->xdp_state[i] && xdp_entry_is_active(dev->xdp_state[i])) 9417 count++; 9418 return count; 9419 } 9420 EXPORT_SYMBOL_GPL(dev_xdp_prog_count); 9421 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
