[PATCH][next] dmaengine: amd: qdma: make read-only arrays h2c_types and c2h_types static const

From: Colin Ian King
Date: Thu Sep 12 2024 - 09:10:44 EST


Don't populate the read-only arrays h2c_types and c2h_types on the
stack at run time, instead make them static const.

Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx>
---
drivers/dma/amd/qdma/qdma.c | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/dma/amd/qdma/qdma.c b/drivers/dma/amd/qdma/qdma.c
index b0a1f3ad851b..17a876df9fb3 100644
--- a/drivers/dma/amd/qdma/qdma.c
+++ b/drivers/dma/amd/qdma/qdma.c
@@ -283,16 +283,20 @@ static int qdma_check_queue_status(struct qdma_device *qdev,

static int qdma_clear_queue_context(const struct qdma_queue *queue)
{
- enum qdma_ctxt_type h2c_types[] = { QDMA_CTXT_DESC_SW_H2C,
- QDMA_CTXT_DESC_HW_H2C,
- QDMA_CTXT_DESC_CR_H2C,
- QDMA_CTXT_PFTCH, };
- enum qdma_ctxt_type c2h_types[] = { QDMA_CTXT_DESC_SW_C2H,
- QDMA_CTXT_DESC_HW_C2H,
- QDMA_CTXT_DESC_CR_C2H,
- QDMA_CTXT_PFTCH, };
+ static const enum qdma_ctxt_type h2c_types[] = {
+ QDMA_CTXT_DESC_SW_H2C,
+ QDMA_CTXT_DESC_HW_H2C,
+ QDMA_CTXT_DESC_CR_H2C,
+ QDMA_CTXT_PFTCH,
+ };
+ static const enum qdma_ctxt_type c2h_types[] = {
+ QDMA_CTXT_DESC_SW_C2H,
+ QDMA_CTXT_DESC_HW_C2H,
+ QDMA_CTXT_DESC_CR_C2H,
+ QDMA_CTXT_PFTCH,
+ };
struct qdma_device *qdev = queue->qdev;
- enum qdma_ctxt_type *type;
+ const enum qdma_ctxt_type *type;
int ret, num, i;

if (queue->dir == DMA_MEM_TO_DEV) {
--
2.39.2