From: Malcolm Priestley Date: Wed, 22 Jul 2015 18:16:35 +0000 (+0100) Subject: staging: vt6655: dead code tx path remove dma_unmap_single X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3a00033ee8697e2e0acf07d03dbea55c4b7236ca;p=openwrt%2Fstaging%2Fblogic.git staging: vt6655: dead code tx path remove dma_unmap_single When pTDInfo->skb_dma not equal to pTDInfo->buf_dma, pTDInfo->skb_dma equals zero. as mentioned in comment pre-allocated buf_dma can't be unmapped so remove dead code. Signed-off-by: Malcolm Priestley Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c index 053291a8e844..695aa25e819d 100644 --- a/drivers/staging/vt6655/device_main.c +++ b/drivers/staging/vt6655/device_main.c @@ -754,10 +754,6 @@ static void device_free_td0_ring(struct vnt_private *pDevice) PSTxDesc pDesc = &(pDevice->apTD0Rings[i]); PDEVICE_TD_INFO pTDInfo = pDesc->pTDInfo; - if (pTDInfo->skb_dma && (pTDInfo->skb_dma != pTDInfo->buf_dma)) - dma_unmap_single(&pDevice->pcid->dev, pTDInfo->skb_dma, - pTDInfo->skb->len, DMA_TO_DEVICE); - dev_kfree_skb(pTDInfo->skb); kfree(pDesc->pTDInfo); } @@ -771,10 +767,6 @@ static void device_free_td1_ring(struct vnt_private *pDevice) PSTxDesc pDesc = &(pDevice->apTD1Rings[i]); PDEVICE_TD_INFO pTDInfo = pDesc->pTDInfo; - if (pTDInfo->skb_dma && (pTDInfo->skb_dma != pTDInfo->buf_dma)) - dma_unmap_single(&pDevice->pcid->dev, pTDInfo->skb_dma, - pTDInfo->skb->len, DMA_TO_DEVICE); - dev_kfree_skb(pTDInfo->skb); kfree(pDesc->pTDInfo); } @@ -975,12 +967,6 @@ static void device_free_tx_buf(struct vnt_private *pDevice, PSTxDesc pDesc) PDEVICE_TD_INFO pTDInfo = pDesc->pTDInfo; struct sk_buff *skb = pTDInfo->skb; - /* pre-allocated buf_dma can't be unmapped. */ - if (pTDInfo->skb_dma && (pTDInfo->skb_dma != pTDInfo->buf_dma)) { - dma_unmap_single(&pDevice->pcid->dev, pTDInfo->skb_dma, - skb->len, DMA_TO_DEVICE); - } - if (skb) ieee80211_tx_status_irqsafe(pDevice->hw, skb);