[dpdk-dev] [PATCH] eal: remove redundant API description

[Thomas Monjalon <thomas@monjalon.net>]

Atomic functions are described in doxygen of the file
lib/librte_eal/common/include/generic/rte_atomic.h
The copies in arch-specific files are redundant
and confuse readers about the genericity of the API.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 .../common/include/arch/arm/rte_atomic_32.h    | 18 ------------------
 .../common/include/arch/ppc_64/rte_atomic.h    | 18 ------------------
 .../common/include/generic/rte_atomic.h        |  3 ---
 3 files changed, 39 deletions(-)

diff --git a/lib/librte_eal/common/include/arch/arm/rte_atomic_32.h b/lib/librte_eal/common/include/arch/arm/rte_atomic_32.h
index 859562e59..7dc0d06d1 100644
--- a/lib/librte_eal/common/include/arch/arm/rte_atomic_32.h
+++ b/lib/librte_eal/common/include/arch/arm/rte_atomic_32.h
@@ -15,28 +15,10 @@ extern "C" {
 
 #include "generic/rte_atomic.h"
 
-/**
- * General memory barrier.
- *
- * Guarantees that the LOAD and STORE operations generated before the
- * barrier occur before the LOAD and STORE operations generated after.
- */
 #define	rte_mb()  __sync_synchronize()
 
-/**
- * Write memory barrier.
- *
- * Guarantees that the STORE operations generated before the barrier
- * occur before the STORE operations generated after.
- */
 #define	rte_wmb() do { asm volatile ("dmb st" : : : "memory"); } while (0)
 
-/**
- * Read memory barrier.
- *
- * Guarantees that the LOAD operations generated before the barrier
- * occur before the LOAD operations generated after.
- */
 #define	rte_rmb() __sync_synchronize()
 
 #define rte_smp_mb() rte_mb()
diff --git a/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h b/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
index ce38350bd..2dd59fd78 100644
--- a/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
+++ b/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
@@ -49,32 +49,14 @@ extern "C" {
 #include <stdint.h>
 #include "generic/rte_atomic.h"
 
-/**
- * General memory barrier.
- *
- * Guarantees that the LOAD and STORE operations generated before the
- * barrier occur before the LOAD and STORE operations generated after.
- */
 #define	rte_mb()  asm volatile("sync" : : : "memory")
 
-/**
- * Write memory barrier.
- *
- * Guarantees that the STORE operations generated before the barrier
- * occur before the STORE operations generated after.
- */
 #ifdef RTE_ARCH_64
 #define	rte_wmb() asm volatile("lwsync" : : : "memory")
 #else
 #define	rte_wmb() asm volatile("sync" : : : "memory")
 #endif
 
-/**
- * Read memory barrier.
- *
- * Guarantees that the LOAD operations generated before the barrier
- * occur before the LOAD operations generated after.
- */
 #ifdef RTE_ARCH_64
 #define	rte_rmb() asm volatile("lwsync" : : : "memory")
 #else
diff --git a/lib/librte_eal/common/include/generic/rte_atomic.h b/lib/librte_eal/common/include/generic/rte_atomic.h
index 4afd1acc3..e91742702 100644
--- a/lib/librte_eal/common/include/generic/rte_atomic.h
+++ b/lib/librte_eal/common/include/generic/rte_atomic.h
@@ -25,7 +25,6 @@
  *
  * Guarantees that the LOAD and STORE operations generated before the
  * barrier occur before the LOAD and STORE operations generated after.
- * This function is architecture dependent.
  */
 static inline void rte_mb(void);
 
@@ -34,7 +33,6 @@ static inline void rte_mb(void);
  *
  * Guarantees that the STORE operations generated before the barrier
  * occur before the STORE operations generated after.
- * This function is architecture dependent.
  */
 static inline void rte_wmb(void);
 
@@ -43,7 +41,6 @@ static inline void rte_wmb(void);
  *
  * Guarantees that the LOAD operations generated before the barrier
  * occur before the LOAD operations generated after.
- * This function is architecture dependent.
  */
 static inline void rte_rmb(void);
 ///@}
-- 
2.20.1