X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Fcommon%2Finclude%2Frte_common.h;h=c3528380731052de81289c78a6cc4b08c35e4e20;hb=30a0df64aaed5cbf33fd5d237d5812cee1cc0ef9;hp=459d082d148e925f238e13f9d4f2220df0765e99;hpb=f26c2b39b271cdcd857ba518c5e48c78cb1c30af;p=dpdk.git

diff --git a/lib/librte_eal/common/include/rte_common.h b/lib/librte_eal/common/include/rte_common.h
index 459d082d14..c352838073 100644
--- a/lib/librte_eal/common/include/rte_common.h
+++ b/lib/librte_eal/common/include/rte_common.h
@@ -538,6 +538,9 @@ rte_bsf32_safe(uint64_t v, uint32_t *pos)
 /**
  * Return the rounded-up log2 of a integer.
  *
+ * @note Contrary to the logarithm mathematical operation,
+ * rte_log2_u32(0) == 0 and not -inf.
+ *
  * @param v
  *     The input parameter.
  * @return
@@ -632,6 +635,9 @@ rte_fls_u64(uint64_t x)
 /**
  * Return the rounded-up log2 of a 64-bit integer.
  *
+ * @note Contrary to the logarithm mathematical operation,
+ * rte_log2_u64(0) == 0 and not -inf.
+ *
  * @param v
  *     The input parameter.
  * @return