[PATCH v1 11/14] ring: reduce scope of local variables
From: Bruce Richardson <hidden>
Date: 2017-02-23 17:25:05
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
The local variable i is only used for loop control so define it in the enqueue and dequeue blocks directly, rather than at the function level. Signed-off-by: Bruce Richardson <redacted> --- lib/librte_ring/rte_ring.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
index afd5367..db50ce9 100644
--- a/lib/librte_ring/rte_ring.h
+++ b/lib/librte_ring/rte_ring.h@@ -280,6 +280,7 @@ void rte_ring_dump(FILE *f, const struct rte_ring *r); * Placed here since identical code needed in both * single and multi producer enqueue functions */ #define ENQUEUE_PTRS() do { \ + unsigned int i; \ const uint32_t size = r->size; \ uint32_t idx = prod_head & mask; \ if (likely(idx + n < size)) { \
@@ -306,6 +307,7 @@ void rte_ring_dump(FILE *f, const struct rte_ring *r); * Placed here since identical code needed in both * single and multi consumer dequeue functions */ #define DEQUEUE_PTRS() do { \ + unsigned int i; \ uint32_t idx = cons_head & mask; \ const uint32_t size = r->size; \ if (likely(idx + n < size)) { \
@@ -356,7 +358,6 @@ __rte_ring_mp_do_enqueue(struct rte_ring *r, void * const *obj_table, uint32_t cons_tail, free_entries; const unsigned int max = n; int success; - unsigned int i; uint32_t mask = r->mask; /* move prod.head atomically */
@@ -426,7 +427,6 @@ __rte_ring_sp_do_enqueue(struct rte_ring *r, void * const *obj_table, { uint32_t prod_head, cons_tail; uint32_t prod_next, free_entries; - unsigned int i; uint32_t mask = r->mask; prod_head = r->prod.head;
@@ -490,7 +490,6 @@ __rte_ring_mc_do_dequeue(struct rte_ring *r, void **obj_table, uint32_t cons_next, entries; const unsigned max = n; int success; - unsigned int i; uint32_t mask = r->mask; /* move cons.head atomically */
@@ -561,7 +560,6 @@ __rte_ring_sc_do_dequeue(struct rte_ring *r, void **obj_table, { uint32_t cons_head, prod_tail; uint32_t cons_next, entries; - unsigned int i; uint32_t mask = r->mask; cons_head = r->cons.head;
--
2.9.3