[PATCH ath-next v2 4/4] wifi: ath12k: Use skb->len for dma_unmap_single() length parameter

[P Praneesh <praneesh.p@xxxxxxxxxxxxxxxx>]

During dma_unmap_single() for extended skb, the driver currently uses
sizeof() of the corresponding structure. When the allocation size changes,
one of the parameters of dma_unmap_single() needs to be updated everywhere.
Improve code readability by using skb->len instead of sizeof() the structure.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: P Praneesh <praneesh.p@xxxxxxxxxxxxxxxx>
---
 drivers/net/wireless/ath/ath12k/dp_tx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/dp_tx.c b/drivers/net/wireless/ath/ath12k/dp_tx.c
index 03ca45d10f7c..3bda44b41e34 100644
--- a/drivers/net/wireless/ath/ath12k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath12k/dp_tx.c
@@ -481,7 +481,7 @@ int ath12k_dp_tx(struct ath12k *ar, struct ath12k_link_vif *arvif,
 fail_unmap_dma_ext:
 	if (skb_cb->paddr_ext_desc)
 		dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
-				 sizeof(struct hal_tx_msdu_ext_desc),
+				 skb_ext_desc->len,
 				 DMA_TO_DEVICE);
 fail_free_ext_skb:
 	kfree_skb(skb_ext_desc);
@@ -512,7 +512,7 @@ static void ath12k_dp_tx_free_txbuf(struct ath12k_base *ab,
 	dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
 	if (skb_cb->paddr_ext_desc) {
 		dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
-				 sizeof(struct hal_tx_msdu_ext_desc), DMA_TO_DEVICE);
+				 desc_params->skb_ext_desc->len, DMA_TO_DEVICE);
 		dev_kfree_skb_any(desc_params->skb_ext_desc);
 	}
 
@@ -544,7 +544,7 @@ ath12k_dp_tx_htt_tx_complete_buf(struct ath12k_base *ab,
 	dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
 	if (skb_cb->paddr_ext_desc) {
 		dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
-				 sizeof(struct hal_tx_msdu_ext_desc), DMA_TO_DEVICE);
+				 desc_params->skb_ext_desc->len, DMA_TO_DEVICE);
 		dev_kfree_skb_any(desc_params->skb_ext_desc);
 	}
 
@@ -745,7 +745,7 @@ static void ath12k_dp_tx_complete_msdu(struct ath12k *ar,
 	dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
 	if (skb_cb->paddr_ext_desc) {
 		dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
-				 sizeof(struct hal_tx_msdu_ext_desc), DMA_TO_DEVICE);
+				 desc_params->skb_ext_desc->len, DMA_TO_DEVICE);
 		dev_kfree_skb_any(desc_params->skb_ext_desc);
 	}
 
-- 
2.34.1