[v4,23/39] port: use C11 alignas

Message ID 1707928564-28796-24-git-send-email-roretzla@linux.microsoft.com (mailing list archive)
State Superseded, archived
Delegated to: David Marchand
Series use C11 alignas and normalize type alignment |


Context Check Description
ci/checkpatch success coding style OK

Commit Message

Tyler Retzlaff Feb. 14, 2024, 4:35 p.m. UTC
  * 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>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
 lib/port/rte_port_frag.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)


diff --git a/lib/port/rte_port_frag.c b/lib/port/rte_port_frag.c
index 883601a..0940f94 100644
--- a/lib/port/rte_port_frag.c
+++ b/lib/port/rte_port_frag.c
@@ -34,7 +34,7 @@ 
 			struct rte_mempool *pool_direct,
 			struct rte_mempool *pool_indirect);
-struct rte_port_ring_reader_frag {
+struct __rte_cache_aligned rte_port_ring_reader_frag {
 	struct rte_port_in_stats stats;
 	/* Input parameters */
@@ -53,7 +53,7 @@  struct rte_port_ring_reader_frag {
 	uint32_t pos_frags;
 	frag_op f_frag;
-} __rte_cache_aligned;
 static void *
 rte_port_ring_reader_frag_create(void *params, int socket_id, int is_ipv4)