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Howlett" Cc: oe-kbuild-all@lists.linux.dev, "Liam R. Howlett (Oracle)" Subject: [liam:maple_marks_v7.2 11/31] lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression Message-ID: <202606270937.VMOBGtwx-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/liam/linux.git maple_marks_v7.2 head: be119ad50e9c87a4a975871d84614f7c6aeaf0de commit: ff58b13f4f7886645f07ec9b542536362d4b230c [11/31] maple_tree: Add bulk parent set helper config: nios2-randconfig-r122-20260627 (https://download.01.org/0day-ci/archive/20260627/202606270937.VMOBGtwx-lkp@intel.com/config) compiler: nios2-linux-gcc (GCC) 8.5.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260627/202606270937.VMOBGtwx-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202606270937.VMOBGtwx-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression >> lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression >> lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression >> lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression >> lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression >> lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression >> lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression >> lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression >> lib/maple_tree.c:528:46: sparse: sparse: cast removes address space '__rcu' of expression vim +/__rcu +528 lib/maple_tree.c 498 499 /* 500 * mas_set_parent_slots() - Bulk operation to set many slot parent pointers 501 * @mas: The maple state 502 * @parent: The encoded maple node that is the parent of @enode. 503 * @slot: The slot that of the @enode. 504 * @start_slot: The offset into @slot 505 * @count: The number of slots to set (eg: exclusive) 506 */ 507 static inline 508 void mas_set_parent_slots(struct ma_state *mas, struct maple_enode *parent, 509 void __rcu **slots, unsigned char start_slot, unsigned char count) 510 { 511 unsigned long val; 512 unsigned long shift; 513 unsigned long type; 514 enum maple_type p_type = mte_node_type(parent); 515 unsigned char i; 516 517 MAS_BUG_ON(mas, p_type != maple_range_64 && 518 p_type != maple_arange_64); 519 520 shift = MAPLE_PARENT_SLOT_SHIFT; 521 type = MAPLE_PARENT_RANGE64; 522 523 val = (unsigned long)parent; 524 val &= ~MAPLE_NODE_MASK; 525 526 for (i = 0; i < count; i++) { 527 unsigned long pval = val | ((start_slot + i) << shift) | type; > 528 struct maple_enode *child = (struct maple_enode *)slots[i]; 529 530 mte_to_node(child)->parent = ma_parent_ptr(pval); 531 } 532 } 533 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki