diff options
| author | Marek Belisko <marek.belisko@gmail.com> | 2010-11-02 13:44:10 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-11-09 16:07:02 -0800 |
| commit | d2b07455b85d20c72e4182fe7d53d8c70838f984 (patch) | |
| tree | 86e6ccea2b1021a9a88b28bd4b6d68b5bf9b4d6d /drivers/staging | |
| parent | 019bd3f825a7fc438b1e9ce7d145b03f13102aee (diff) | |
| download | op-kernel-dev-d2b07455b85d20c72e4182fe7d53d8c70838f984.zip op-kernel-dev-d2b07455b85d20c72e4182fe7d53d8c70838f984.tar.gz | |
staging: ft1000: Pseudo header handlig improved.
Handling for pseudo header was done by directly copying
data to tx buffer. This hide a functionality and make
code unreadable.
Use approach where fill pseudo_hdr structure first with data and then copy
to beginning of buffer.
Signed-off-by: Marek Belisko <marek.belisko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/ft1000/ft1000-usb/ft1000_hw.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c index 5a9edfb..90394e1 100644 --- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c +++ b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c @@ -1017,10 +1017,9 @@ static int ft1000_copy_down_pkt (struct net_device *netdev, u8 *packet, u16 len) struct ft1000_device *pFt1000Dev = pInfo->pFt1000Dev; - int i, count, ret; - USHORT *pTemp; - USHORT checksum; + int count, ret; u8 *t; + struct pseudo_hdr hdr; if (!pInfo->CardReady) { @@ -1044,21 +1043,21 @@ static int ft1000_copy_down_pkt (struct net_device *netdev, u8 *packet, u16 len) if ( count % 4) count = count + (4- (count %4) ); - pTemp = (PUSHORT)&(pFt1000Dev->tx_buf[0]); - *pTemp ++ = ntohs(count); - *pTemp ++ = 0x1020; - *pTemp ++ = 0x2010; - *pTemp ++ = 0x9100; - *pTemp ++ = 0; - *pTemp ++ = 0; - *pTemp ++ = 0; - pTemp = (PUSHORT)&(pFt1000Dev->tx_buf[0]); - checksum = *pTemp ++; - for (i=1; i<7; i++) - { - checksum ^= *pTemp ++; - } - *pTemp++ = checksum; + memset(&hdr, 0, sizeof(struct pseudo_hdr)); + + hdr.length = ntohs(count); + hdr.source = 0x10; + hdr.destination = 0x20; + hdr.portdest = 0x20; + hdr.portsrc = 0x10; + hdr.sh_str_id = 0x91; + hdr.control = 0x00; + + hdr.checksum = hdr.length ^ hdr.source ^ hdr.destination ^ + hdr.portdest ^ hdr.portsrc ^ hdr.sh_str_id ^ + hdr.control; + + memcpy(&pFt1000Dev->tx_buf[0], &hdr, sizeof(hdr)); memcpy(&(pFt1000Dev->tx_buf[sizeof(struct pseudo_hdr)]), packet, len); netif_stop_queue(netdev); |
