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authorDavid Barksdale <amatus@amatus.name>2014-08-13 16:14:13 -0500
committerDavid Barksdale <amatus@amatus.name>2014-08-13 16:14:13 -0500
commitace6c6d243016e272050787c14e27a83ecd94a25 (patch)
treec837edb1ca98b2552fbc7edba47aeb63f98ca1f0 /drivers/usb/gadget/u_ether.c
parent1b6e1688bd215cd7c9cb75650fa815a1ec6567e1 (diff)
Diffstat (limited to 'drivers/usb/gadget/u_ether.c')
-rw-r--r--drivers/usb/gadget/u_ether.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 2fc02bd9584..df2ea5b99bc 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -125,10 +125,13 @@ static inline int qlen(struct usb_gadget *gadget)
#define xprintk(d, level, fmt, args...) \
printk(level "%s: " fmt , (d)->net->name , ## args)
+#define DEBUG
+#define VERBOSE_DEBUG
+
#ifdef DEBUG
#undef DEBUG
#define DBG(dev, fmt, args...) \
- xprintk(dev , KERN_DEBUG , fmt , ## args)
+ printk(fmt , ## args)
#else
#define DBG(dev, fmt, args...) \
do { } while (0)
@@ -249,7 +252,17 @@ rx_submit(struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags)
* but on at least one, checksumming fails otherwise. Note:
* RNDIS headers involve variable numbers of LE32 values.
*/
+#if defined(CONFIG_USB_GADGET_DWC_OTG)
+ {
+ unsigned int off = 0;
+ off = ((unsigned long) skb->data) % 4; /* align=4 */
+ if (off != 0)
+ skb_reserve(skb, 4 - off);
+ }
+#else
skb_reserve(skb, NET_IP_ALIGN);
+#endif
+
req->buf = skb->data;
req->length = size;
@@ -573,6 +586,18 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb,
length = skb->len;
}
+
+#if defined(CONFIG_USB_GADGET_DWC_OTG)
+ {
+ unsigned int off = 0;
+ off = ((unsigned long) skb->data) % 4; /* align=4 */
+ if (off != 0) {
+ memmove(skb->data + (4 - off), skb->data, skb->len);
+ skb_reserve(skb, 4 - off);
+ }
+ }
+#endif
+
req->buf = skb->data;
req->context = skb;
req->complete = tx_complete;