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Message-ID: <503E8789.6050809@lwfinger.net>
Date: Wed, 29 Aug 2012 16:20:09 -0500
From: Larry Finger <Larry.Finger@...inger.net>
To: Malcolm Priestley <tvboxspy@...il.com>
CC: netdev@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Re: [PATCH] vt6656: [BUG] - Failed connection, incorrect endian.
v2
On 08/29/2012 03:54 PM, Malcolm Priestley wrote:
>
> This patch fixes a bug with driver failing to negotiate a connection.
>
> The bug was traced to commit
> 203e4615ee9d9fa8d3506b9d0ef30095e4d5bc90
> staging: vt6656: removed custom definitions of Ethernet packet types
>
> In that patch, definitions in include/linux/if_ether.h replaced ones
> in tether.h which had both big and little endian definitions.
>
> include/linux/if_ether.h only refers to big endian values, cpu_to_be16
> should be used for the correct endian architectures.
>
> checkpatch fixed version.
>
> Signed-off-by: Malcolm Priestley <tvboxspy@...il.com>
Patches for staging drivers should be sent to gregkh@...uxfoundation.org. He is
the one that handles them. In addition, the patch subject line usually has the
sequence "staging: vt6656: blabla" the way the faulty patch did.
> ---
> drivers/staging/vt6656/dpc.c | 2 +-
> drivers/staging/vt6656/rxtx.c | 38 +++++++++++++++++++-------------------
> 2 files changed, 20 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c
> index e4bdf2a..3aa895e 100644
> --- a/drivers/staging/vt6656/dpc.c
> +++ b/drivers/staging/vt6656/dpc.c
> @@ -200,7 +200,7 @@ s_vProcessRxMACHeader (
> } else if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_RFC1042[0])) {
> cbHeaderSize += 6;
> pwType = (PWORD) (pbyRxBufferAddr + cbHeaderSize);
> - if ((*pwType == cpu_to_le16(ETH_P_IPX)) ||
> + if ((*pwType == cpu_to_be16(ETH_P_IPX)) ||
> (*pwType == cpu_to_le16(0xF380))) {
> cbHeaderSize -= 8;
> pwType = (PWORD) (pbyRxBufferAddr + cbHeaderSize);
> diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
> index bb46452..b6e04e7 100644
> --- a/drivers/staging/vt6656/rxtx.c
> +++ b/drivers/staging/vt6656/rxtx.c
> @@ -1699,7 +1699,7 @@ s_bPacketToWirelessUsb(
> // 802.1H
> if (ntohs(psEthHeader->wType) > ETH_DATA_LEN) {
> if (pDevice->dwDiagRefCount == 0) {
> - if ((psEthHeader->wType == cpu_to_le16(ETH_P_IPX)) ||
> + if ((psEthHeader->wType == cpu_to_be16(ETH_P_IPX)) ||
> (psEthHeader->wType == cpu_to_le16(0xF380))) {
> memcpy((PBYTE) (pbyPayloadHead),
> abySNAP_Bridgetunnel, 6);
> @@ -2838,10 +2838,10 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
> Packet_Type = skb->data[ETH_HLEN+1];
> Descriptor_type = skb->data[ETH_HLEN+1+1+2];
> Key_info = (skb->data[ETH_HLEN+1+1+2+1] << 8)|(skb->data[ETH_HLEN+1+1+2+2]);
> - if (pDevice->sTxEthHeader.wType == cpu_to_le16(ETH_P_PAE)) {
> - /* 802.1x OR eapol-key challenge frame transfer */
> - if (((Protocol_Version == 1) || (Protocol_Version == 2)) &&
> - (Packet_Type == 3)) {
> + if (pDevice->sTxEthHeader.wType == cpu_to_be16(ETH_P_PAE)) {
> + /* 802.1x OR eapol-key challenge frame transfer */
> + if (((Protocol_Version == 1) || (Protocol_Version == 2)) &&
> + (Packet_Type == 3)) {
> bTxeapol_key = TRUE;
> if(!(Key_info & BIT3) && //WPA or RSN group-key challenge
> (Key_info & BIT8) && (Key_info & BIT9)) { //send 2/2 key
> @@ -2987,19 +2987,19 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
> }
> }
>
> - if (pDevice->sTxEthHeader.wType == cpu_to_le16(ETH_P_PAE)) {
> - if (pDevice->byBBType != BB_TYPE_11A) {
> - pDevice->wCurrentRate = RATE_1M;
> - pDevice->byACKRate = RATE_1M;
> - pDevice->byTopCCKBasicRate = RATE_1M;
> - pDevice->byTopOFDMBasicRate = RATE_6M;
> - } else {
> - pDevice->wCurrentRate = RATE_6M;
> - pDevice->byACKRate = RATE_6M;
> - pDevice->byTopCCKBasicRate = RATE_1M;
> - pDevice->byTopOFDMBasicRate = RATE_6M;
> - }
> - }
> + if (pDevice->sTxEthHeader.wType == cpu_to_be16(ETH_P_PAE)) {
> + if (pDevice->byBBType != BB_TYPE_11A) {
> + pDevice->wCurrentRate = RATE_1M;
> + pDevice->byACKRate = RATE_1M;
> + pDevice->byTopCCKBasicRate = RATE_1M;
> + pDevice->byTopOFDMBasicRate = RATE_6M;
> + } else {
> + pDevice->wCurrentRate = RATE_6M;
> + pDevice->byACKRate = RATE_6M;
> + pDevice->byTopCCKBasicRate = RATE_1M;
> + pDevice->byTopOFDMBasicRate = RATE_6M;
> + }
> + }
>
> DBG_PRT(MSG_LEVEL_DEBUG,
> KERN_INFO "dma_tx: pDevice->wCurrentRate = %d\n",
> @@ -3015,7 +3015,7 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
>
> if (bNeedEncryption == TRUE) {
> DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ntohs Pkt Type=%04x\n", ntohs(pDevice->sTxEthHeader.wType));
> - if ((pDevice->sTxEthHeader.wType) == cpu_to_le16(ETH_P_PAE)) {
> + if ((pDevice->sTxEthHeader.wType) == cpu_to_be16(ETH_P_PAE)) {
> bNeedEncryption = FALSE;
> DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Pkt Type=%04x\n", (pDevice->sTxEthHeader.wType));
> if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
>
The white space looks a bit funny; however, it seems that this driver does not
use tabs at the start, and your patch does.
Larry
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