Hi James, kernel test robot noticed the following build warnings: [auto build test WARNING on bpf-next/master] [also build test WARNING on bpf/master linus/master v6.16-rc7 next-20250725] [cannot apply to bpf-next/net] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/James-Bottomley/bpf-make-bpf_key-an-opaque-type/20250724-224304 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20250724143428.4416-3-James.Bottomley%40HansenPartnership.com patch subject: [PATCH 2/3] bpf: remove bpf_key reference config: i386-randconfig-063-20250725 (https://download.01.org/0day-ci/archive/20250726/202507261944.7ub6moae-lkp@xxxxxxxxx/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250726/202507261944.7ub6moae-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/202507261944.7ub6moae-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) kernel/trace/bpf_trace.c:834:41: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __user *[addressable] [assigned] [usertype] sival_ptr @@ got void * @@ kernel/trace/bpf_trace.c:834:41: sparse: expected void [noderef] __user *[addressable] [assigned] [usertype] sival_ptr kernel/trace/bpf_trace.c:834:41: sparse: got void * kernel/trace/bpf_trace.c:3695:52: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3709:56: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3723:52: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3730:56: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3738:52: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3746:56: sparse: sparse: cast removes address space '__user' of expression >> kernel/trace/bpf_trace.c:1349:42: sparse: sparse: non size-preserving pointer to integer cast kernel/trace/bpf_trace.c:1377:42: sparse: sparse: non size-preserving pointer to integer cast kernel/trace/bpf_trace.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, ...): include/linux/rcupdate.h:871:25: sparse: sparse: context imbalance in 'uprobe_prog_run' - unexpected unlock vim +1349 kernel/trace/bpf_trace.c 1339 1340 /** 1341 * bpf_key_put - decrement key reference count if key is valid and free bpf_key 1342 * @bkey: bpf_key structure 1343 * 1344 * Decrement the reference count of the key inside *bkey*, if the pointer 1345 * is valid, and free *bkey*. 1346 */ 1347 __bpf_kfunc void bpf_key_put(struct bpf_key *bkey) 1348 { > 1349 if (system_keyring_id_check((u64)bkey->key) < 0) 1350 key_put(bkey->key); 1351 1352 kfree(bkey); 1353 } 1354 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
