diff options
Diffstat (limited to 'drivers/usb/gadget/u_ether.c')
| -rw-r--r-- | drivers/usb/gadget/u_ether.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index fbe86ca9580..1eda968b564 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -240,6 +240,9 @@ rx_submit(struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags) size += out->maxpacket - 1; size -= size % out->maxpacket; + if (dev->port_usb->is_fixed) + size = max(size, dev->port_usb->fixed_out_len); + skb = alloc_skb(size + NET_IP_ALIGN, gfp_flags); if (skb == NULL) { DBG(dev, "no rx skb\n"); @@ -578,12 +581,19 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb, req->context = skb; req->complete = tx_complete; + /* NCM requires no zlp if transfer is dwNtbInMaxSize */ + if (dev->port_usb->is_fixed && + length == dev->port_usb->fixed_in_len && + (length % in->maxpacket) == 0) + req->zero = 0; + else + req->zero = 1; + /* use zlp framing on tx for strict CDC-Ether conformance, * though any robust network rx path ignores extra padding. * and some hardware doesn't like to write zlps. */ - req->zero = 1; - if (!dev->zlp && (length % in->maxpacket) == 0) + if (req->zero && !dev->zlp && (length % in->maxpacket) == 0) length++; req->length = length; @@ -829,11 +839,9 @@ void gether_cleanup(void) return; unregister_netdev(the_dev->net); + flush_work_sync(&the_dev->work); free_netdev(the_dev->net); - /* assuming we used keventd, it must quiesce too */ - flush_scheduled_work(); - the_dev = NULL; } |