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staging: vt6655: remove unnecessary variable skb_dma

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skb_dma flips from 0 to the contents buf_dma.

This is nolonger necessary so use buf_dma directly
and remove skb_dma altogether.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2015-07-22 19:16:36 +01:00 committed by Greg Kroah-Hartman
parent 3a00033ee8
commit 06f716a57e
3 changed files with 1 additions and 4 deletions
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1
drivers/staging/vt6655/desc.h
View File

@ -256,7 +256,6 @@ typedef struct tagDEVICE_TD_INFO {
void *mic_hdr;
struct sk_buff *skb;
unsigned char *buf;
dma_addr_t skb_dma;
dma_addr_t buf_dma;
dma_addr_t curr_desc;
unsigned long dwReqCount;

3
drivers/staging/vt6655/device_main.c
View File

@ -970,7 +970,6 @@ static void device_free_tx_buf(struct vnt_private *pDevice, PSTxDesc pDesc)
if (skb)
ieee80211_tx_status_irqsafe(pDevice->hw, skb);
pTDInfo->skb_dma = 0;
pTDInfo->skb = NULL;
pTDInfo->byFlags = 0;
}
@ -1201,7 +1200,7 @@ static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
head_td->m_td1TD1.wReqCount =
cpu_to_le16((u16)head_td->pTDInfo->dwReqCount);
head_td->buff_addr = cpu_to_le32(head_td->pTDInfo->skb_dma);
head_td->buff_addr = cpu_to_le32(head_td->pTDInfo->buf_dma);
/* Poll Transmit the adapter */
wmb();

1
drivers/staging/vt6655/rxtx.c
View File

@ -1202,7 +1202,6 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
ptdCurr->pTDInfo->dwReqCount = cbReqCount;
ptdCurr->pTDInfo->dwHeaderLength = cbHeaderLength;
ptdCurr->pTDInfo->skb_dma = ptdCurr->pTDInfo->buf_dma;
return cbHeaderLength;
}