../../../uts/common/fs/zfs/lua/ltable.c:485:23: error: this statement may fall t
hrough [-Werror=implicit-fallthrough=]
     case LUA_TNUMBER: {
                       ^
../../../uts/common/fs/zfs/lua/ltable.c:493:5: note: here
     default: {
     ^~~~~~~

../../../uts/common/fs/zfs/lua/lstrlib.c:516:16: error: this statement may fall through [-Werror=implicit-fallthrough=]
               s++;  /* 1 match already done */
               ~^~
../../../uts/common/fs/zfs/lua/lstrlib.c:518:13: note: here
             case '*':  /* 0 or more repetitions */
             ^~~~

../../../uts/common/fs/zfs/lua/lgc.c:679:22: error: this statement may fall through [-Werror=implicit-fallthrough=]
       G(L)->strt.nuse--;
../../../uts/common/fs/zfs/lua/lgc.c:681:5: note: here
     case LUA_TLNGSTR: {
     ^~~~

../../../uts/common/fs/zfs/lua/llex.c:475:17: error: this statement may fall through [-Werror=implicit-fallthrough=]
         else if (!lisdigit(ls->current)) return '.';
                 ^
../../../uts/common/fs/zfs/lua/llex.c:478:7: note: here
       case '0': case '1': case '2': case '3': case '4':
       ^~~~

cc1: all warnings being treated as errors