Building modules, stage 2. MODPOST 1 modules WARNING: "__aeabi_uldivmod" [/home/xw/workspace/github/openwrt-master/build_dir/target-arm_cortex-a9+vfpv3_glibc_eabi/linux-mvebu_cortexa9/ndpi-netfilter-a360566-2.6/ndpi-netfilter/src/xt_ndpi.ko] undefined! about ndpi HOT 3 CLOSED

diff --git a/src/lib/third_party/src/lruc.c b/src/lib/third_party/src/lruc.c
index a63ed99..b450fde 100644
--- a/src/lib/third_party/src/lruc.c
+++ b/src/lib/third_party/src/lruc.c
@@ -156,10 +156,11 @@ lruc *lruc_new(uint64_t cache_size, uint32_t average_length) {
     perror("LRU Cache unable to create cache object");
     return NULL;
   }
-  cache->hash_table_size      = cache_size / average_length;
   cache->average_item_length  = average_length;
   cache->free_memory          = cache_size;
   cache->total_memory         = cache_size;
+  do_div(cache_size, average_length);
+  cache->hash_table_size      = cache_size;
 #ifndef __KERNEL__
   cache->seed                 = time(NULL);
 #else