[linux-next:fs-next 337/433] fs/bcachefs/btree_key_cache.c:758:9: sparse: sparse: dereference of noderef expression

[linux-next:fs-next 337/433] fs/bcachefs/btree_key_cache.c:758:9: sparse: sparse: dereference of noderef expression

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git fs-next
head:   7ba615b05fbe745265e898c3bf8db40453c59b8a
commit: f316d2e88651ba94dff468e038621a5385002b2d [337/433] bcachefs: Rip out freelists from btree key cache
config: csky-randconfig-r132-20240822 (https://download.01.org/0day-ci/archive/20240822/202408221407.KnZ1VF8O-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 14.1.0
reproduce: (https://download.01.org/0day-ci/archive/20240822/202408221407.KnZ1VF8O-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408221407.KnZ1VF8O-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   fs/bcachefs/btree_key_cache.c: note: in included file:
   fs/bcachefs/bcachefs.h:996:9: sparse: sparse: array of flexible structures
   fs/bcachefs/btree_key_cache.c:687:32: sparse: sparse: context imbalance in 'bch2_fs_btree_key_cache_exit' - different lock contexts for basic block
>> fs/bcachefs/btree_key_cache.c:758:9: sparse: sparse: dereference of noderef expression

vim +758 fs/bcachefs/btree_key_cache.c

   750	
   751	void bch2_btree_key_cache_to_text(struct printbuf *out, struct btree_key_cache *bc)
   752	{
   753		printbuf_tabstop_push(out, 24);
   754		printbuf_tabstop_push(out, 12);
   755	
   756		prt_printf(out, "keys:\t%lu\r\n",		atomic_long_read(&bc->nr_keys));
   757		prt_printf(out, "dirty:\t%lu\r\n",		atomic_long_read(&bc->nr_dirty));
 > 758		prt_printf(out, "table size:\t%u\r\n",		bc->table.tbl->size);
   759	
   760		prt_printf(out, "\nshrinker:\n");
   761		prt_printf(out, "requested_to_free:\t%lu\r\n",	bc->requested_to_free);
   762		prt_printf(out, "freed:\t%lu\r\n",		bc->freed);
   763		prt_printf(out, "skipped_dirty:\t%lu\r\n",	bc->skipped_dirty);
   764		prt_printf(out, "skipped_accessed:\t%lu\r\n",	bc->skipped_accessed);
   765		prt_printf(out, "skipped_lock_fail:\t%lu\r\n",	bc->skipped_lock_fail);
   766	}
   767	

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