[PATCH v4 37/39] gpudev: use C11 alignas

[Tyler Retzlaff]

* 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 at linux.microsoft.com>
Acked-by: Morten Brørup <mb at smartsharesystems.com>
---
 lib/gpudev/gpudev_driver.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/gpudev/gpudev_driver.h b/lib/gpudev/gpudev_driver.h
index 0b1e7f2..37b6ae3 100644
--- a/lib/gpudev/gpudev_driver.h
+++ b/lib/gpudev/gpudev_driver.h
@@ -72,7 +72,7 @@ struct rte_gpu_mpshared {
 	RTE_ATOMIC(uint16_t) process_refcnt; /* Updated by this library. */
 };
 
-struct rte_gpu {
+struct __rte_cache_aligned rte_gpu {
 	/* Backing device. */
 	struct rte_device *device;
 	/* Data shared between processes. */
@@ -85,7 +85,7 @@ struct rte_gpu {
 	enum rte_gpu_state process_state; /* Updated by this library. */
 	/* Driver-specific private data for the running process. */
 	void *process_private;
-} __rte_cache_aligned;
+};
 
 __rte_internal
 struct rte_gpu *rte_gpu_get_by_name(const char *name);
-- 
1.8.3.1