Merge branch 'linaro-android-3.10-lsk' of git://android.git.linaro.org/kernel/linaro-android into linux-linaro-lsk-android

Conflicts:
	arch/arm64/Kconfig
	arch/arm64/include/asm/barrier.h
	arch/arm64/include/asm/elf.h
	arch/arm64/include/asm/ptrace.h
	arch/arm64/kernel/Makefile
	arch/arm64/kernel/debug-monitors.c
	arch/arm64/kernel/entry.S
	arch/arm64/kernel/hw_breakpoint.c
	arch/arm64/kernel/kuser32.S
	arch/arm64/kernel/ptrace.c
	arch/arm64/kernel/setup.c
	arch/arm64/kernel/traps.c
	kernel/fork.c

1 files changed, 21 insertions, 4 deletions

diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c
index 7646a564bfda..5c274f1d7b7a 100644
--- a/drivers/usb/gadget/f_rndis.c
+++ b/drivers/usb/gadget/f_rndis.c
@@ -66,10 +66,10 @@
  *   - MS-Windows drivers sometimes emit undocumented requests.
  */
 
-static bool rndis_multipacket_dl_disable;
-module_param(rndis_multipacket_dl_disable, bool, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(rndis_multipacket_dl_disable,
-	"Disable RNDIS Multi-packet support in DownLink");
+static unsigned int rndis_dl_max_pkt_per_xfer = 3;
+module_param(rndis_dl_max_pkt_per_xfer, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(rndis_dl_max_pkt_per_xfer,
+	"Maximum packets per transfer for DL aggregation");
 
 static unsigned int rndis_ul_max_pkt_per_xfer = 3;
 module_param(rndis_ul_max_pkt_per_xfer, uint, S_IRUGO | S_IWUSR);
@@ -457,6 +457,7 @@ static void rndis_command_complete(struct usb_ep *ep, struct usb_request *req)
 {
 	struct f_rndis			*rndis = req->context;
 	int				status;
+	rndis_init_msg_type		*buf;
 
 	/* received RNDIS command from USB_CDC_SEND_ENCAPSULATED_COMMAND */
 //	spin_lock(&dev->lock);
@@ -464,6 +465,21 @@ static void rndis_command_complete(struct usb_ep *ep, struct usb_request *req)
 	if (status < 0)
 		pr_err("RNDIS command error %d, %d/%d\n",
 			status, req->actual, req->length);
+
+	buf = (rndis_init_msg_type *)req->buf;
+
+	if (buf->MessageType == RNDIS_MSG_INIT) {
+		if (buf->MaxTransferSize > 2048)
+			rndis->port.multi_pkt_xfer = 1;
+		else
+			rndis->port.multi_pkt_xfer = 0;
+		pr_info("%s: MaxTransferSize: %d : Multi_pkt_txr: %s\n",
+				__func__, buf->MaxTransferSize,
+				rndis->port.multi_pkt_xfer ? "enabled" :
+							    "disabled");
+		if (rndis_dl_max_pkt_per_xfer <= 1)
+			rndis->port.multi_pkt_xfer = 0;
+	}
 //	spin_unlock(&dev->lock);
 }
 
@@ -865,6 +881,7 @@ rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
 	rndis->port.wrap = rndis_add_header;
 	rndis->port.unwrap = rndis_rm_hdr;
 	rndis->port.ul_max_pkts_per_xfer = rndis_ul_max_pkt_per_xfer;
+	rndis->port.dl_max_pkts_per_xfer = rndis_dl_max_pkt_per_xfer;
 
 	rndis->port.func.name = "rndis";
 	rndis->port.func.strings = rndis_strings;