diff options
| author |   P Praneesh <praneesh.p@oss.qualcomm.com> | 2025-04-11 11:31:54 +0530 |
|---|---|---|
| committer |   Jeff Johnson <jeff.johnson@oss.qualcomm.com> | 2025-04-17 15:49:33 -0700 |
| commit | 65bf4ed2db9ac3590c7f0545b6bbebbacbfd974f (patch) | |
| tree | be552d74628b6b8c4a6da425dffc99c2d97207e6 | |
| parent | wifi: ath12k: Fix memory leak during extended skb allocation (diff) | |
| download | wireguard-linux-65bf4ed2db9ac3590c7f0545b6bbebbacbfd974f.tar.xz wireguard-linux-65bf4ed2db9ac3590c7f0545b6bbebbacbfd974f.zip | |
wifi: ath12k: Use skb->len for dma_unmap_single() length parameter
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@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250411060154.1388159-5-praneesh.p@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath12k/dp_tx.c | 8 |
1 files 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 9bcd20712888..2136eeb278af 100644 --- a/drivers/net/wireless/ath/ath12k/dp_tx.c +++ b/drivers/net/wireless/ath/ath12k/dp_tx.c @@ -493,7 +493,7 @@ map: 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); @@ -529,7 +529,7 @@ 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); } @@ -564,7 +564,7 @@ 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); } @@ -781,7 +781,7 @@ 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); } |