Re: [PATCH V10 11/12] io_uring/uring_cmd: support leasing device kernel buffer to io_uring

[kernel test robot <lkp@intel.com>]

Hi Ming,

kernel test robot noticed the following build errors:

[auto build test ERROR on axboe-block/for-next]
[also build test ERROR on next-20241107]
[cannot apply to linus/master v6.12-rc6]
[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/Ming-Lei/io_uring-rsrc-pass-struct-io_ring_ctx-reference-to-rsrc-helpers/20241107-190456
base:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next
patch link:    https://lore.kernel.org/r/20241107110149.890530-12-ming.lei%40redhat.com
patch subject: [PATCH V10 11/12] io_uring/uring_cmd: support leasing device kernel buffer to io_uring
config: arm64-randconfig-001-20241108 (https://download.01.org/0day-ci/archive/20241108/202411080354.5JXKXPEW-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241108/202411080354.5JXKXPEW-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/202411080354.5JXKXPEW-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from block/ioctl.c:4:
   In file included from include/linux/blkdev.h:9:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:8:
   In file included from include/linux/cacheflush.h:5:
   In file included from arch/arm64/include/asm/cacheflush.h:11:
   In file included from include/linux/kgdb.h:19:
   In file included from include/linux/kprobes.h:28:
   In file included from include/linux/ftrace.h:13:
   In file included from include/linux/kallsyms.h:13:
   In file included from include/linux/mm.h:2213:
   include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     504 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     505 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     511 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     512 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   In file included from block/ioctl.c:15:
>> include/linux/io_uring/cmd.h:89:1: error: expected identifier or '('
      89 | {
         | ^
   3 warnings and 1 error generated.


vim +89 include/linux/io_uring/cmd.h

    62	
    63	int io_uring_cmd_lease_kbuf(struct io_uring_cmd *ioucmd,
    64				    struct io_rsrc_node *node);
    65	#else
    66	static inline int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw,
    67				      struct iov_iter *iter, void *ioucmd)
    68	{
    69		return -EOPNOTSUPP;
    70	}
    71	static inline void io_uring_cmd_done(struct io_uring_cmd *cmd, ssize_t ret,
    72			ssize_t ret2, unsigned issue_flags)
    73	{
    74	}
    75	static inline void __io_uring_cmd_do_in_task(struct io_uring_cmd *ioucmd,
    76				    void (*task_work_cb)(struct io_uring_cmd *, unsigned),
    77				    unsigned flags)
    78	{
    79	}
    80	static inline void io_uring_cmd_mark_cancelable(struct io_uring_cmd *cmd,
    81			unsigned int issue_flags)
    82	{
    83	}
    84	static inline void io_uring_cmd_issue_blocking(struct io_uring_cmd *ioucmd)
    85	{
    86	}
    87	static inline int io_uring_cmd_lease_kbuf(struct io_uring_cmd *ioucmd,
    88						  struct io_rsrc_node *node);
  > 89	{
    90		return -EOPNOTSUPP;
    91	}
    92	#endif
    93	

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