rndis_host: pass buffer length to rndis_command
Pass buffer length to rndis_command so that rndis_command can read full response buffer from device instead of max CONTROL_BUFFER_SIZE bytes. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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0caa11663c
commit
818727badc
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@ -74,7 +74,7 @@ EXPORT_SYMBOL_GPL(rndis_status);
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* Call context is likely probe(), before interface name is known,
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* which is why we won't try to use it in the diagnostics.
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*/
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int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf)
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int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
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{
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struct cdc_state *info = (void *) &dev->data;
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int master_ifnum;
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@ -121,7 +121,7 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf)
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USB_CDC_GET_ENCAPSULATED_RESPONSE,
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USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
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0, master_ifnum,
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buf, CONTROL_BUFFER_SIZE,
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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_len = le32_to_cpu(buf->msg_len);
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@ -239,7 +239,7 @@ static int rndis_query(struct usbnet *dev, struct usb_interface *intf,
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u.get->len = cpu_to_le32(in_len);
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u.get->offset = ccpu2(20);
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retval = rndis_command(dev, u.header);
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retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
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if (unlikely(retval < 0)) {
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dev_err(&intf->dev, "RNDIS_MSG_QUERY(0x%08x) failed, %d\n",
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oid, retval);
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@ -328,7 +328,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
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u.init->max_transfer_size = cpu_to_le32(dev->rx_urb_size);
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net->change_mtu = NULL;
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retval = rndis_command(dev, u.header);
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retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
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if (unlikely(retval < 0)) {
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/* it might not even be an RNDIS device!! */
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dev_err(&intf->dev, "RNDIS init failed, %d\n", retval);
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@ -409,7 +409,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
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u.set->offset = ccpu2((sizeof *u.set) - 8);
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*(__le32 *)(u.buf + sizeof *u.set) = RNDIS_DEFAULT_FILTER;
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retval = rndis_command(dev, u.header);
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retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
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if (unlikely(retval < 0)) {
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dev_err(&intf->dev, "rndis set packet filter, %d\n", retval);
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goto halt_fail_and_release;
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@ -424,7 +424,7 @@ halt_fail_and_release:
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memset(u.halt, 0, sizeof *u.halt);
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u.halt->msg_type = RNDIS_MSG_HALT;
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u.halt->msg_len = ccpu2(sizeof *u.halt);
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(void) rndis_command(dev, (void *)u.halt);
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(void) rndis_command(dev, (void *)u.halt, CONTROL_BUFFER_SIZE);
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fail_and_release:
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usb_set_intfdata(info->data, NULL);
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usb_driver_release_interface(driver_of(intf), info->data);
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@ -449,7 +449,7 @@ void rndis_unbind(struct usbnet *dev, struct usb_interface *intf)
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if (halt) {
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halt->msg_type = RNDIS_MSG_HALT;
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halt->msg_len = ccpu2(sizeof *halt);
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(void) rndis_command(dev, (void *)halt);
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(void) rndis_command(dev, (void *)halt, CONTROL_BUFFER_SIZE);
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kfree(halt);
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}
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@ -448,7 +448,7 @@ static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
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u.get->msg_len = ccpu2(sizeof *u.get);
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u.get->oid = oid;
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ret = rndis_command(dev, u.header);
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ret = rndis_command(dev, u.header, buflen);
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if (ret == 0) {
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ret = le32_to_cpu(u.get_c->len);
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*len = (*len > ret) ? ret : *len;
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@ -498,7 +498,7 @@ static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
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u.set->handle = ccpu2(0);
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memcpy(u.buf + sizeof(*u.set), data, len);
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ret = rndis_command(dev, u.header);
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ret = rndis_command(dev, u.header, buflen);
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if (ret == 0)
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ret = rndis_error_status(u.set_c->status);
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@ -260,7 +260,8 @@ struct rndis_keepalive_c { /* IN (optionally OUT) */
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extern void rndis_status(struct usbnet *dev, struct urb *urb);
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extern int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf);
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extern int
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rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen);
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extern int
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generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags);
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extern void rndis_unbind(struct usbnet *dev, struct usb_interface *intf);
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