diff mbox series

[07/16] rcu: remove use of VLAs for Windows built code

Message ID 1713397319-26135-8-git-send-email-roretzla@linux.microsoft.com (mailing list archive)
State Superseded
Delegated to: Thomas Monjalon
Headers
Series remove use of VLAs for Windows built code |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Tyler Retzlaff April 17, 2024, 11:41 p.m. UTC 
  MSVC does not support VLAs, replace VLAs with standard C arrays
or alloca(). alloca() is available for all toolchain/platform
combinations officially supported by DPDK.

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
---
 lib/rcu/rte_rcu_qsbr.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/lib/rcu/rte_rcu_qsbr.c b/lib/rcu/rte_rcu_qsbr.c
index f08d974..971c056 100644
--- a/lib/rcu/rte_rcu_qsbr.c
+++ b/lib/rcu/rte_rcu_qsbr.c
@@ -356,7 +356,7 @@  int rte_rcu_qsbr_dq_enqueue(struct rte_rcu_qsbr_dq *dq, void *e)
 		return 1;
 	}
 
-	char data[dq->esize];
+	char *data = alloca(dq->esize);
 	dq_elem = (__rte_rcu_qsbr_dq_elem_t *)data;
 	/* Start the grace period */
 	dq_elem->token = rte_rcu_qsbr_start(dq->v);
@@ -419,10 +419,10 @@  int rte_rcu_qsbr_dq_enqueue(struct rte_rcu_qsbr_dq *dq, void *e)
 
 	cnt = 0;
 
-	char data[dq->esize];
+	char *data = alloca(dq->esize);
 	/* Check reader threads quiescent state and reclaim resources */
 	while (cnt < n &&
-		rte_ring_dequeue_bulk_elem_start(dq->r, &data,
+		rte_ring_dequeue_bulk_elem_start(dq->r, data,
 					dq->esize, 1, available) != 0) {
 		dq_elem = (__rte_rcu_qsbr_dq_elem_t *)data;