diff options
Diffstat (limited to 'drivers/net/usb/hso.c')
| -rw-r--r-- | drivers/net/usb/hso.c | 44 |
1 files changed, 16 insertions, 28 deletions
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 62e9e8dc819..bed8fcedff4 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -958,10 +958,6 @@ static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt, /* Packet is complete. Inject into stack. */ /* We have IP packet here */ odev->skb_rx_buf->protocol = cpu_to_be16(ETH_P_IP); - /* don't check it */ - odev->skb_rx_buf->ip_summed = - CHECKSUM_UNNECESSARY; - skb_reset_mac_header(odev->skb_rx_buf); /* Ship it off to the kernel */ @@ -1001,6 +997,18 @@ static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt, } } +static void fix_crc_bug(struct urb *urb, __le16 max_packet_size) +{ + static const u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF }; + u32 rest = urb->actual_length % le16_to_cpu(max_packet_size); + + if (((rest == 5) || (rest == 6)) && + !memcmp(((u8 *)urb->transfer_buffer) + urb->actual_length - 4, + crc_check, 4)) { + urb->actual_length -= 4; + } +} + /* Moving data from usb to kernel (in interrupt state) */ static void read_bulk_callback(struct urb *urb) { @@ -1029,17 +1037,8 @@ static void read_bulk_callback(struct urb *urb) return; } - if (odev->parent->port_spec & HSO_INFO_CRC_BUG) { - u32 rest; - u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF }; - rest = urb->actual_length % - le16_to_cpu(odev->in_endp->wMaxPacketSize); - if (((rest == 5) || (rest == 6)) && - !memcmp(((u8 *) urb->transfer_buffer) + - urb->actual_length - 4, crc_check, 4)) { - urb->actual_length -= 4; - } - } + if (odev->parent->port_spec & HSO_INFO_CRC_BUG) + fix_crc_bug(urb, odev->in_endp->wMaxPacketSize); /* do we even have a packet? */ if (urb->actual_length) { @@ -1231,18 +1230,8 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb) return; if (status == 0) { - if (serial->parent->port_spec & HSO_INFO_CRC_BUG) { - u32 rest; - u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF }; - rest = - urb->actual_length % - le16_to_cpu(serial->in_endp->wMaxPacketSize); - if (((rest == 5) || (rest == 6)) && - !memcmp(((u8 *) urb->transfer_buffer) + - urb->actual_length - 4, crc_check, 4)) { - urb->actual_length -= 4; - } - } + if (serial->parent->port_spec & HSO_INFO_CRC_BUG) + fix_crc_bug(urb, serial->in_endp->wMaxPacketSize); /* Valid data, handle RX data */ spin_lock(&serial->serial_lock); serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 1; @@ -1745,7 +1734,6 @@ static int hso_serial_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { struct hso_serial *serial = get_serial_by_tty(tty); - void __user *uarg = (void __user *)arg; int ret = 0; D4("IOCTL cmd: %d, arg: %ld", cmd, arg); |