diff options
Diffstat (limited to 'lib/librte_ring/rte_ring_c11_mem.h')
-rw-r--r-- | lib/librte_ring/rte_ring_c11_mem.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/librte_ring/rte_ring_c11_mem.h b/lib/librte_ring/rte_ring_c11_mem.h index cb3f82b1..94df3c4a 100644 --- a/lib/librte_ring/rte_ring_c11_mem.h +++ b/lib/librte_ring/rte_ring_c11_mem.h @@ -66,14 +66,14 @@ __rte_ring_move_prod_head(struct rte_ring *r, unsigned int is_sp, *old_head = __atomic_load_n(&r->prod.head, __ATOMIC_ACQUIRE); - const uint32_t cons_tail = r->cons.tail; + /* * The subtraction is done between two unsigned 32bits value * (the result is always modulo 32 bits even if we have * *old_head > cons_tail). So 'free_entries' is always between 0 * and capacity (which is < size). */ - *free_entries = (capacity + cons_tail - *old_head); + *free_entries = (capacity + r->cons.tail - *old_head); /* check that we have enough room in ring */ if (unlikely(n > *free_entries)) @@ -133,13 +133,13 @@ __rte_ring_move_cons_head(struct rte_ring *r, int is_sc, n = max; *old_head = __atomic_load_n(&r->cons.head, __ATOMIC_ACQUIRE); - const uint32_t prod_tail = r->prod.tail; + /* The subtraction is done between two unsigned 32bits value * (the result is always modulo 32 bits even if we have * cons_head > prod_tail). So 'entries' is always between 0 * and size(ring)-1. */ - *entries = (prod_tail - *old_head); + *entries = (r->prod.tail - *old_head); /* Set the actual entries for dequeue */ if (n > *entries) |