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[02/14] stack: use C11 alignas

Message ID 1707873986-29352-3-git-send-email-roretzla@linux.microsoft.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers
Series use C11 alignas and normalize type alignment |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Tyler Retzlaff Feb. 14, 2024, 1:26 a.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>
---
 lib/stack/rte_stack.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/lib/stack/rte_stack.h b/lib/stack/rte_stack.h
index a379300..277fc27 100644
--- a/lib/stack/rte_stack.h
+++ b/lib/stack/rte_stack.h
@@ -42,7 +42,7 @@  struct rte_stack_lf_head {
 
 struct rte_stack_lf_list {
 	/** List head */
-	struct rte_stack_lf_head head __rte_aligned(16);
+	alignas(16) struct rte_stack_lf_head head;
 	/** List len */
 	RTE_ATOMIC(uint64_t) len;
 };