[PATCH] erofs: support external crypto for decompression

[kernel test robot]

Hi Tao,

kernel test robot noticed the following build errors:

[auto build test ERROR on ee78a17615ad0cfdbbc27182b1047cd36c9d4d5f]

url:    https://github.com/intel-lab-lkp/linux/commits/Tao-Zeng-via-B4-Relay/erofs-support-external-crypto-for-decompression/20240606-155702
base:   ee78a17615ad0cfdbbc27182b1047cd36c9d4d5f
patch link:    https://lore.kernel.org/r/20240606-erofs-decompression-v1-1-ec5f31396e04%40amlogic.com
patch subject: [PATCH] erofs: support external crypto for decompression
config: arm64-randconfig-004-20240607 (https://download.01.org/0day-ci/archive/20240607/202406071506.XHwo54ej-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project d7d2d4f53fc79b4b58e8d8d08151b577c3699d4a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240607/202406071506.XHwo54ej-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202406071506.XHwo54ej-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from fs/erofs/zdata.c:7:
   In file included from fs/erofs/compress.h:9:
   In file included from fs/erofs/internal.h:11:
   In file included from include/linux/dax.h:6:
   In file included from include/linux/mm.h:2241:
   include/linux/vmstat.h:484:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     484 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     485 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:491:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     491 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     492 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:498:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     498 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:503:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     503 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     504 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:512:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     512 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     513 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   In file included from fs/erofs/zdata.c:7:
>> fs/erofs/compress.h:120:1: error: expected identifier or '('
     120 | {
         | ^
   5 warnings and 1 error generated.


vim +120 fs/erofs/compress.h

   115	
   116	static inline int z_erofs_load_crypto_config(struct super_block *sb,
   117						     struct erofs_super_block *dsb,
   118						     void *data,
   119						     int size);
 > 120	{
   121		if (crypto) {
   122			erofs_err(sb, "crypto algorithm isn't enabled");
   123			return -EINVAL;
   124		}
   125		return 0;
   126	}
   127	#endif
   128	

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