[PATCH v3 33/39] compressdev: use C11 alignas

[Tyler Retzlaff <roretzla@linux.microsoft.com>]

* Move __rte_aligned from the end of {struct,union} definitions to
  be between {struct,union} and tag.

  The placement between {struct,union} and the tag allows the desired
  alignment to be imparted on the type regardless of the toolchain being
  used for all of GCC, LLVM, MSVC compilers building both C and C++.

* Replace use of __rte_aligned(a) on variables/fields with alignas(a).

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
---
 lib/compressdev/rte_comp.h                 | 4 ++--
 lib/compressdev/rte_compressdev_internal.h | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/compressdev/rte_comp.h b/lib/compressdev/rte_comp.h
index 3606ebf..830a240 100644
--- a/lib/compressdev/rte_comp.h
+++ b/lib/compressdev/rte_comp.h
@@ -356,7 +356,7 @@ struct rte_comp_xform {
  * Comp operations are enqueued and dequeued in comp PMDs using the
  * rte_compressdev_enqueue_burst() / rte_compressdev_dequeue_burst() APIs
  */
-struct rte_comp_op {
+struct __rte_cache_aligned rte_comp_op {
 	enum rte_comp_op_type op_type;
 	union {
 		void *private_xform;
@@ -478,7 +478,7 @@ struct rte_comp_op {
 	 * will be set to RTE_COMP_OP_STATUS_SUCCESS after operation
 	 * is successfully processed by a PMD
 	 */
-} __rte_cache_aligned;
+};
 
 /**
  * Creates an operation pool
diff --git a/lib/compressdev/rte_compressdev_internal.h b/lib/compressdev/rte_compressdev_internal.h
index 01b7764..8a626d3 100644
--- a/lib/compressdev/rte_compressdev_internal.h
+++ b/lib/compressdev/rte_compressdev_internal.h
@@ -69,7 +69,7 @@ typedef uint16_t (*compressdev_enqueue_pkt_burst_t)(void *qp,
 		struct rte_comp_op **ops, uint16_t nb_ops);
 
 /** The data structure associated with each comp device. */
-struct rte_compressdev {
+struct __rte_cache_aligned rte_compressdev {
 	compressdev_dequeue_pkt_burst_t dequeue_burst;
 	/**< Pointer to PMD receive function */
 	compressdev_enqueue_pkt_burst_t enqueue_burst;
@@ -87,7 +87,7 @@ struct rte_compressdev {
 	__extension__
 	uint8_t attached : 1;
 	/**< Flag indicating the device is attached */
-} __rte_cache_aligned;
+};
 
 /**
  *
@@ -96,7 +96,7 @@ struct rte_compressdev {
  * This structure is safe to place in shared memory to be common among
  * different processes in a multi-process configuration.
  */
-struct rte_compressdev_data {
+struct __rte_cache_aligned rte_compressdev_data {
 	uint8_t dev_id;
 	/**< Compress device identifier */
 	int socket_id;
@@ -115,7 +115,7 @@ struct rte_compressdev_data {
 
 	void *dev_private;
 	/**< PMD-specific private data */
-} __rte_cache_aligned;
+};
 
 #ifdef __cplusplus
 }
-- 
1.8.3.1