rndis_host: cleanup: byteswap data from device instead of RNDIS_* defines
All other values from device provided buffer are byteswapped, so it seems more logical to do same for these. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jussi Kivilinna
David S. Miller
parent
d5543206b2
commit
3eef366898
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@ -77,16 +77,17 @@ static void rndis_msg_indicate(struct usbnet *dev, struct rndis_indicate *msg,
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if (dev->driver_info->indication) {
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dev->driver_info->indication(dev, msg, buflen);
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} else {
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switch (msg->status) {
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case cpu_to_le32(RNDIS_STATUS_MEDIA_CONNECT):
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u32 status = le32_to_cpu(msg->status);
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switch (status) {
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case RNDIS_STATUS_MEDIA_CONNECT:
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dev_info(udev, "rndis media connect\n");
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break;
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case cpu_to_le32(RNDIS_STATUS_MEDIA_DISCONNECT):
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case RNDIS_STATUS_MEDIA_DISCONNECT:
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dev_info(udev, "rndis media disconnect\n");
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break;
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default:
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dev_info(udev, "rndis indication: 0x%08x\n",
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le32_to_cpu(msg->status));
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dev_info(udev, "rndis indication: 0x%08x\n", status);
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}
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}
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}
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@ -109,16 +110,17 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
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int retval;
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int partial;
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unsigned count;
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__le32 rsp;
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u32 xid = 0, msg_len, request_id;
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u32 xid = 0, msg_len, request_id, msg_type, rsp,
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status;
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/* REVISIT when this gets called from contexts other than probe() or
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* disconnect(): either serialize, or dispatch responses on xid
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*/
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msg_type = le32_to_cpu(buf->msg_type);
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/* Issue the request; xid is unique, don't bother byteswapping it */
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if (likely(buf->msg_type != cpu_to_le32(RNDIS_MSG_HALT) &&
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buf->msg_type != cpu_to_le32(RNDIS_MSG_RESET))) {
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if (likely(msg_type != RNDIS_MSG_HALT && msg_type != RNDIS_MSG_RESET)) {
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xid = dev->xid++;
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if (!xid)
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xid = dev->xid++;
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@ -149,7 +151,7 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
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}
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/* Poll the control channel; the request probably completed immediately */
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rsp = buf->msg_type | cpu_to_le32(RNDIS_MSG_COMPLETION);
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rsp = le32_to_cpu(buf->msg_type) | RNDIS_MSG_COMPLETION;
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for (count = 0; count < 10; count++) {
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memset(buf, 0, CONTROL_BUFFER_SIZE);
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retval = usb_control_msg(dev->udev,
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@ -160,30 +162,31 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
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buf, buflen,
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RNDIS_CONTROL_TIMEOUT_MS);
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if (likely(retval >= 8)) {
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msg_type = le32_to_cpu(buf->msg_type);
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msg_len = le32_to_cpu(buf->msg_len);
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status = le32_to_cpu(buf->status);
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request_id = (__force u32) buf->request_id;
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if (likely(buf->msg_type == rsp)) {
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if (likely(msg_type == rsp)) {
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if (likely(request_id == xid)) {
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if (unlikely(rsp ==
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cpu_to_le32(RNDIS_MSG_RESET_C)))
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if (unlikely(rsp == RNDIS_MSG_RESET_C))
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return 0;
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if (likely(cpu_to_le32(RNDIS_STATUS_SUCCESS)
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== buf->status))
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if (likely(RNDIS_STATUS_SUCCESS ==
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status))
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return 0;
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dev_dbg(&info->control->dev,
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"rndis reply status %08x\n",
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le32_to_cpu(buf->status));
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status);
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return -EL3RST;
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}
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dev_dbg(&info->control->dev,
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"rndis reply id %d expected %d\n",
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request_id, xid);
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/* then likely retry */
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} else switch (buf->msg_type) {
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case cpu_to_le32(RNDIS_MSG_INDICATE): /* fault/event */
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} else switch (msg_type) {
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case RNDIS_MSG_INDICATE: /* fault/event */
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rndis_msg_indicate(dev, (void *)buf, buflen);
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break;
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case cpu_to_le32(RNDIS_MSG_KEEPALIVE): { /* ping */
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case RNDIS_MSG_KEEPALIVE: { /* ping */
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struct rndis_keepalive_c *msg = (void *)buf;
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msg->msg_type = cpu_to_le32(RNDIS_MSG_KEEPALIVE_C);
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@ -404,14 +407,14 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
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phym = &phym_unspec;
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}
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if ((flags & FLAG_RNDIS_PHYM_WIRELESS) &&
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*phym != cpu_to_le32(RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN)) {
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le32_to_cpup(phym) != RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
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netif_dbg(dev, probe, dev->net,
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"driver requires wireless physical medium, but device is not\n");
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retval = -ENODEV;
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goto halt_fail_and_release;
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}
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if ((flags & FLAG_RNDIS_PHYM_NOT_WIRELESS) &&
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*phym == cpu_to_le32(RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN)) {
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le32_to_cpup(phym) == RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
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netif_dbg(dev, probe, dev->net,
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"driver requires non-wireless physical medium, but device is wireless.\n");
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retval = -ENODEV;
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@ -496,16 +499,16 @@ int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
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while (likely(skb->len)) {
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struct rndis_data_hdr *hdr = (void *)skb->data;
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struct sk_buff *skb2;
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u32 msg_len, data_offset, data_len;
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u32 msg_type, msg_len, data_offset, data_len;
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msg_type = le32_to_cpu(hdr->msg_type);
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msg_len = le32_to_cpu(hdr->msg_len);
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data_offset = le32_to_cpu(hdr->data_offset);
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data_len = le32_to_cpu(hdr->data_len);
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/* don't choke if we see oob, per-packet data, etc */
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if (unlikely(hdr->msg_type != cpu_to_le32(RNDIS_MSG_PACKET) ||
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skb->len < msg_len ||
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(data_offset + data_len + 8) > msg_len)) {
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if (unlikely(msg_type != RNDIS_MSG_PACKET || skb->len < msg_len
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|| (data_offset + data_len + 8) > msg_len)) {
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dev->net->stats.rx_frame_errors++;
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netdev_dbg(dev->net, "bad rndis message %d/%d/%d/%d, len %d\n",
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le32_to_cpu(hdr->msg_type),
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