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New upstream version 17.11.5
[deb_dpdk.git]
/
lib
/
librte_sched
/
rte_reciprocal.c
diff --git
a/lib/librte_sched/rte_reciprocal.c
b/lib/librte_sched/rte_reciprocal.c
index
652f023
..
385109c
100644
(file)
--- a/
lib/librte_sched/rte_reciprocal.c
+++ b/
lib/librte_sched/rte_reciprocal.c
@@
-38,28
+38,13
@@
#include "rte_reciprocal.h"
#include "rte_reciprocal.h"
-/* find largest set bit.
- * portable and slow but does not matter for this usage.
- */
-static inline int fls(uint32_t x)
-{
- int b;
-
- for (b = 31; b >= 0; --b) {
- if (x & (1u << b))
- return b + 1;
- }
-
- return 0;
-}
-
struct rte_reciprocal rte_reciprocal_value(uint32_t d)
{
struct rte_reciprocal R;
uint64_t m;
int l;
struct rte_reciprocal rte_reciprocal_value(uint32_t d)
{
struct rte_reciprocal R;
uint64_t m;
int l;
- l =
fls
(d - 1);
+ l =
rte_fls_u32
(d - 1);
m = ((1ULL << 32) * ((1ULL << l) - d));
m /= d;
m = ((1ULL << 32) * ((1ULL << l) - d));
m /= d;