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staging: vt6656: rxtx.c: s_vGetFreeContext use single tx memset.

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memset to 0 structure _USB_SEND_CONTEXT pContext->Data to its
size of MAX_TOTAL_SIZE_WITH_ALL_HEADERS as defined
in device.h

This removes the need for memset in the TX path.

It also allows the removal of dead structure
TX_BUFFER_CONTAINER BufferHeader;

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2013-08-05 21:09:14 +01:00 committed by Greg Kroah-Hartman
parent a66698110b
commit c0de17e468
1 changed files with 1 additions and 11 deletions
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12
drivers/staging/vt6656/rxtx.c
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@ -155,6 +155,7 @@ static void *s_vGetFreeContext(struct vnt_private *pDevice)
pContext = pDevice->apTD[ii];
if (pContext->bBoolInUse == false) {
pContext->bBoolInUse = true;
memset(pContext->Data, 0, MAX_TOTAL_SIZE_WITH_ALL_HEADERS);
pReturnContext = pContext;
break;
}
@ -1206,7 +1207,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
}
pTxBufHead = (PTX_BUFFER) usbPacketBuf;
memset(pTxBufHead, 0, sizeof(TX_BUFFER));
// Get pkt type
if (ntohs(psEthHeader->h_proto) > ETH_DATA_LEN) {
@ -1582,8 +1582,6 @@ static void s_vGenerateMACHeader(struct vnt_private *pDevice,
{
struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *)pbyBufferAddr;
memset(pMACHeader, 0, (sizeof(struct ieee80211_hdr)));
if (uDMAIdx == TYPE_ATIMDMA) {
pMACHeader->frame_control = TYPE_802_11_ATIM;
} else {
@ -1699,7 +1697,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
cbFrameBodySize = pPacket->cbPayloadLen;
pTxBufHead = (PSTxBufHead) pbyTxBufferAddr;
wTxBufSize = sizeof(STxBufHead);
memset(pTxBufHead, 0, wTxBufSize);
if (pDevice->byBBType == BB_TYPE_11A) {
wCurrentRate = RATE_6M;
@ -1828,9 +1825,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
cbHeaderSize = wTxBufSize + sizeof(SRrvTime_ab) + sizeof(STxDataHead_ab);
}
memset((void *)(pbyTxBufferAddr + wTxBufSize), 0,
(cbHeaderSize - wTxBufSize));
memcpy(&(sEthHeader.h_dest[0]),
&(pPacket->p80211Header->sA3.abyAddr1[0]),
ETH_ALEN);
@ -1968,7 +1962,6 @@ CMD_STATUS csBeacon_xmit(struct vnt_private *pDevice,
pTxBufHead = (PSTxShortBufHead) pbyTxBufferAddr;
wTxBufSize = sizeof(STxShortBufHead);
memset(pTxBufHead, 0, wTxBufSize);
if (pDevice->byBBType == BB_TYPE_11A) {
wCurrentRate = RATE_6M;
@ -2077,7 +2070,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
pbyTxBufferAddr = (u8 *)(&pTX_Buffer->adwTxKey[0]);
pTxBufHead = (PSTxBufHead) pbyTxBufferAddr;
wTxBufSize = sizeof(STxBufHead);
memset(pTxBufHead, 0, wTxBufSize);
if (pDevice->byBBType == BB_TYPE_11A) {
wCurrentRate = RATE_6M;
@ -2233,8 +2225,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
pvTxDataHd = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR);
cbHeaderSize = wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR + sizeof(STxDataHead_ab);
}
memset((void *)(pbyTxBufferAddr + wTxBufSize), 0,
(cbHeaderSize - wTxBufSize));
memcpy(&(sEthHeader.h_dest[0]),
&(p80211Header->sA3.abyAddr1[0]),
ETH_ALEN);