eal: make u64 reciprocal divisor const

The divisor is not modified here. Doesn't really matter for optimizaton
since the function is inline already; but helps with expressing
intent.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

diff --git a/lib/librte_eal/common/include/rte_reciprocal.h b/lib/librte_eal/common/include/rte_reciprocal.h
index 3492c73bafeacb5434cac5f6181b2a05d00a3ae6..63e16fde0aa864f4c5a9777e67d715269d39bc82 100644 (file)
--- a/lib/librte_eal/common/include/rte_reciprocal.h
+++ b/lib/librte_eal/common/include/rte_reciprocal.h
@@ -77,7 +77,7 @@ mullhi_u64(uint64_t x, uint64_t y)
 }
 
 static __rte_always_inline uint64_t
-rte_reciprocal_divide_u64(uint64_t a, struct rte_reciprocal_u64 *R)
+rte_reciprocal_divide_u64(uint64_t a, const struct rte_reciprocal_u64 *R)
 {
        uint64_t t = mullhi_u64(a, R->m);