ring: fix C++ cast error

build error:
include/rte_ring.h:459:22: error: invalid conversion from ‘void*’
to ‘void**’ [-fpermissive]
  ENQUEUE_PTRS(r, &r[1], prod_head, obj_table, n, void *);

Implicit casts of void* to void** are considered warnings in some
compilers.  E.g. g++ version 5.8.  Cast directly to object types

Fixes: a6619414 ("ring: make struct and macros type agnostic")

Signed-off-by: Ed Czeck <ed.czeck@atomicrules.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>

diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
index 28b7b2a..bd29a8a 100644 (file)
--- a/lib/librte_ring/rte_ring.h
+++ b/lib/librte_ring/rte_ring.h
@@ -290,7 +290,7 @@ void rte_ring_dump(FILE *f, const struct rte_ring *r);
        unsigned int i; \
        const uint32_t size = (r)->size; \
        uint32_t idx = prod_head & (r)->mask; \
-       obj_type *ring = (void *)ring_start; \
+       obj_type *ring = (obj_type *)ring_start; \
        if (likely(idx + n < size)) { \
                for (i = 0; i < (n & ((~(unsigned)0x3))); i+=4, idx+=4) { \
                        ring[idx] = obj_table[i]; \
@@ -321,7 +321,7 @@ void rte_ring_dump(FILE *f, const struct rte_ring *r);
        unsigned int i; \
        uint32_t idx = cons_head & (r)->mask; \
        const uint32_t size = (r)->size; \
-       obj_type *ring = (void *)ring_start; \
+       obj_type *ring = (obj_type *)ring_start; \
        if (likely(idx + n < size)) { \
                for (i = 0; i < (n & (~(unsigned)0x3)); i+=4, idx+=4) {\
                        obj_table[i] = ring[idx]; \