[dpdk-dev] [PATCH] eal: fix clang compilation error on ARM64

[Pavan Nikhilesh]

Use __atomic_exchange_n instead of __atomic_exchange_(2/4/8).

Fixes: ff2863570fcc ("eal: introduce atomic exchange operation")

Signed-off-by: Pavan Nikhilesh <pbhagavatula at caviumnetworks.com>
---
 lib/librte_eal/common/include/generic/rte_atomic.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/librte_eal/common/include/generic/rte_atomic.h b/lib/librte_eal/common/include/generic/rte_atomic.h
index 8652c0264..91a6d615a 100644
--- a/lib/librte_eal/common/include/generic/rte_atomic.h
+++ b/lib/librte_eal/common/include/generic/rte_atomic.h
@@ -12,7 +12,9 @@
  * This file defines a generic API for atomic operations.
  */
 
+#include <stdatomic.h>
 #include <stdint.h>
+
 #include <rte_common.h>
 
 #ifdef __DOXYGEN__
@@ -212,7 +214,7 @@ rte_atomic16_exchange(volatile uint16_t *dst, uint16_t val);
 static inline uint16_t
 rte_atomic16_exchange(volatile uint16_t *dst, uint16_t val)
 {
-	return __atomic_exchange_2(dst, val, __ATOMIC_SEQ_CST);
+	return __atomic_exchange_n(dst, val, __ATOMIC_SEQ_CST);
 }
 #endif
 
@@ -491,7 +493,7 @@ rte_atomic32_exchange(volatile uint32_t *dst, uint32_t val);
 static inline uint32_t
 rte_atomic32_exchange(volatile uint32_t *dst, uint32_t val)
 {
-	return __atomic_exchange_4(dst, val, __ATOMIC_SEQ_CST);
+	return __atomic_exchange_n(dst, val, __ATOMIC_SEQ_CST);
 }
 #endif
 
@@ -769,7 +771,7 @@ rte_atomic64_exchange(volatile uint64_t *dst, uint64_t val);
 static inline uint64_t
 rte_atomic64_exchange(volatile uint64_t *dst, uint64_t val)
 {
-	return __atomic_exchange_8(dst, val, __ATOMIC_SEQ_CST);
+	return __atomic_exchange_n(dst, val, __ATOMIC_SEQ_CST);
 }
 #endif
 
-- 
2.17.0