USB: use usb_endpoint_maxp() instead of le16_to_cpu()

Now ${LINUX}/drivers/usb/* can use usb_endpoint_maxp(desc) to get maximum packet size
instead of le16_to_cpu(desc->wMaxPacketSize).
This patch fix it up

Cc: Armin Fuerst <fuerst@in.tum.de>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Johannes Erdfelt <johannes@erdfelt.com>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Oliver Neukum <oliver@neukum.name>
Cc: David Kubicek <dave@awk.cz>
Cc: Johan Hovold <jhovold@gmail.com>
Cc: Brad Hards <bhards@bigpond.net.au>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Dahlmann <dahlmann.thomas@arcor.de>
Cc: David Brownell <david-b@pacbell.net>
Cc: David Lopo <dlopo@chipidea.mips.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Xie Xiaobo <X.Xie@freescale.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Jiang Bo <tanya.jiang@freescale.com>
Cc: Yuan-hsin Chen <yhchen@faraday-tech.com>
Cc: Darius Augulis <augulis.darius@gmail.com>
Cc: Xiaochen Shen <xiaochen.shen@intel.com>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: OKI SEMICONDUCTOR, <toshiharu-linux@dsn.okisemi.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Herbert Pötzl <herbert@13thfloor.at>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: Roman Weissgaerber <weissg@vienna.at>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Tony Olech <tony.olech@elandigitalsystems.com>
Cc: Florian Floe Echtler <echtler@fs.tum.de>
Cc: Christian Lucht <lucht@codemercs.com>
Cc: Juergen Stuber <starblue@sourceforge.net>
Cc: Georges Toth <g.toth@e-biz.lu>
Cc: Bill Ryder <bryder@sgi.com>
Cc: Kuba Ober <kuba@mareimbrium.org>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

6 files changed, 16 insertions, 16 deletions

diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index dd24fc115e4..15dc51ded61 100644
--- a/drivers/usb/host/ohci-q.c
+++ b/drivers/usb/host/ohci-q.c
@@ -428,7 +428,7 @@ static struct ed *ed_get (
 		ed->type = usb_pipetype(pipe);
 
 		info |= (ep->desc.bEndpointAddress & ~USB_DIR_IN) << 7;
-		info |= le16_to_cpu(ep->desc.wMaxPacketSize) << 16;
+		info |= usb_endpoint_maxp(&ep->desc) << 16;
 		if (udev->speed == USB_SPEED_LOW)
 			info |= ED_LOWSPEED;
 		/* only control transfers store pids in tds */
@@ -444,7 +444,7 @@ static struct ed *ed_get (
 				ed->load = usb_calc_bus_time (
 					udev->speed, !is_out,
 					ed->type == PIPE_ISOCHRONOUS,
-					le16_to_cpu(ep->desc.wMaxPacketSize))
+					usb_endpoint_maxp(&ep->desc))
 						/ 1000;
 			}
 		}
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 40a0d8b03ad..a6f256436e7 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -959,7 +959,7 @@ static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb,
 	info.pipenum = get_empty_pipenum(r8a66597, ep);
 	info.address = get_urb_to_r8a66597_addr(r8a66597, urb);
 	info.epnum = usb_endpoint_num(ep);
-	info.maxpacket = le16_to_cpu(ep->wMaxPacketSize);
+	info.maxpacket = usb_endpoint_maxp(ep);
 	info.type = get_r8a66597_type(usb_endpoint_type(ep));
 	info.bufnum = get_bufnum(info.pipenum);
 	info.buf_bsize = get_buf_bsize(info.pipenum);
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index 84ed28b34f9..f6ca80ee4ce 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -280,7 +280,7 @@ static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci,
 			qh->load = usb_calc_bus_time(udev->speed,
 					usb_endpoint_dir_in(&hep->desc),
 					qh->type == USB_ENDPOINT_XFER_ISOC,
-					le16_to_cpu(hep->desc.wMaxPacketSize))
+					usb_endpoint_maxp(&hep->desc))
 				/ 1000 + 1;
 
 	} else {		/* Skeleton QH */
@@ -792,7 +792,7 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb,
 {
 	struct uhci_td *td;
 	unsigned long destination, status;
-	int maxsze = le16_to_cpu(qh->hep->desc.wMaxPacketSize);
+	int maxsze = usb_endpoint_maxp(&qh->hep->desc);
 	int len = urb->transfer_buffer_length;
 	dma_addr_t data = urb->transfer_dma;
 	__hc32 *plink;
@@ -918,7 +918,7 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb,
 {
 	struct uhci_td *td;
 	unsigned long destination, status;
-	int maxsze = le16_to_cpu(qh->hep->desc.wMaxPacketSize);
+	int maxsze = usb_endpoint_maxp(&qh->hep->desc);
 	int len = urb->transfer_buffer_length;
 	int this_sg_len;
 	dma_addr_t data;
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index d446886b22b..d873a0330c9 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1141,8 +1141,8 @@ static u32 xhci_get_max_esit_payload(struct xhci_hcd *xhci,
 	if (udev->speed == USB_SPEED_SUPER)
 		return le16_to_cpu(ep->ss_ep_comp.wBytesPerInterval);
 
-	max_packet = GET_MAX_PACKET(le16_to_cpu(ep->desc.wMaxPacketSize));
-	max_burst = (le16_to_cpu(ep->desc.wMaxPacketSize) & 0x1800) >> 11;
+	max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
+	max_burst = (usb_endpoint_maxp(&ep->desc) & 0x1800) >> 11;
 	/* A 0 in max burst means 1 transfer per ESIT */
 	return max_packet * (max_burst + 1);
 }
@@ -1211,7 +1211,7 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 	/* Set the max packet size and max burst */
 	switch (udev->speed) {
 	case USB_SPEED_SUPER:
-		max_packet = le16_to_cpu(ep->desc.wMaxPacketSize);
+		max_packet = usb_endpoint_maxp(&ep->desc);
 		ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
 		/* dig out max burst from ep companion desc */
 		max_packet = ep->ss_ep_comp.bMaxBurst;
@@ -1223,14 +1223,14 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 		 */
 		if (usb_endpoint_xfer_isoc(&ep->desc) ||
 				usb_endpoint_xfer_int(&ep->desc)) {
-			max_burst = (le16_to_cpu(ep->desc.wMaxPacketSize)
+			max_burst = (usb_endpoint_maxp(&ep->desc)
 				     & 0x1800) >> 11;
 			ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_burst));
 		}
 		/* Fall through */
 	case USB_SPEED_FULL:
 	case USB_SPEED_LOW:
-		max_packet = GET_MAX_PACKET(le16_to_cpu(ep->desc.wMaxPacketSize));
+		max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
 		ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
 		break;
 	default:
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 7113d16e2d3..bf0b52c6c96 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2676,7 +2676,7 @@ static u32 xhci_v1_0_td_remainder(int running_total, int trb_buff_len,
 	 * running_total.
 	 */
 	packets_transferred = (running_total + trb_buff_len) /
-		le16_to_cpu(urb->ep->desc.wMaxPacketSize);
+		usb_endpoint_maxp(&urb->ep->desc);
 
 	return xhci_td_remainder(total_packet_count - packets_transferred);
 }
@@ -2706,7 +2706,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 	num_trbs = count_sg_trbs_needed(xhci, urb);
 	num_sgs = urb->num_sgs;
 	total_packet_count = roundup(urb->transfer_buffer_length,
-			le16_to_cpu(urb->ep->desc.wMaxPacketSize));
+			usb_endpoint_maxp(&urb->ep->desc));
 
 	trb_buff_len = prepare_transfer(xhci, xhci->devs[slot_id],
 			ep_index, urb->stream_id,
@@ -2913,7 +2913,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 
 	running_total = 0;
 	total_packet_count = roundup(urb->transfer_buffer_length,
-			le16_to_cpu(urb->ep->desc.wMaxPacketSize));
+			usb_endpoint_maxp(&urb->ep->desc));
 	/* How much data is in the first TRB? */
 	addr = (u64) urb->transfer_dma;
 	trb_buff_len = TRB_MAX_BUFF_SIZE -
@@ -3239,7 +3239,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 		td_remain_len = td_len;
 		/* FIXME: Ignoring zero-length packets, can those happen? */
 		total_packet_count = roundup(td_len,
-				le16_to_cpu(urb->ep->desc.wMaxPacketSize));
+				usb_endpoint_maxp(&urb->ep->desc));
 		burst_count = xhci_get_burst_count(xhci, urb->dev, urb,
 				total_packet_count);
 		residue = xhci_get_last_burst_packet_count(xhci,
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 1c4432d8fc1..f53596b16de 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -987,7 +987,7 @@ static int xhci_check_maxpacket(struct xhci_hcd *xhci, unsigned int slot_id,
 	out_ctx = xhci->devs[slot_id]->out_ctx;
 	ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index);
 	hw_max_packet_size = MAX_PACKET_DECODED(le32_to_cpu(ep_ctx->ep_info2));
-	max_packet_size = le16_to_cpu(urb->dev->ep0.desc.wMaxPacketSize);
+	max_packet_size = usb_endpoint_maxp(&urb->dev->ep0.desc);
 	if (hw_max_packet_size != max_packet_size) {
 		xhci_dbg(xhci, "Max Packet Size for ep 0 changed.\n");
 		xhci_dbg(xhci, "Max packet size in usb_device = %d\n",