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>

3 files changed, 6 insertions, 7 deletions

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index dac7676ce21b..f69a1854a59c 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1058,11 +1058,11 @@ made_compressed_probe:
 		goto alloc_fail;
 	}
 
-	ctrlsize = le16_to_cpu(epctrl->wMaxPacketSize);
-	readsize = le16_to_cpu(epread->wMaxPacketSize) *
+	ctrlsize = usb_endpoint_maxp(epctrl);
+	readsize = usb_endpoint_maxp(epread) *
 				(quirks == SINGLE_RX_URB ? 1 : 2);
 	acm->combined_interfaces = combined_interfaces;
-	acm->writesize = le16_to_cpu(epwrite->wMaxPacketSize) * 20;
+	acm->writesize = usb_endpoint_maxp(epwrite) * 20;
 	acm->control = control_interface;
 	acm->data = data_interface;
 	acm->minor = minor;
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 2b9ff518b509..1d26a7135dd9 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -682,7 +682,7 @@ next_desc:
 	if (!ep || !usb_endpoint_is_int_in(ep))
 		goto err;
 
-	desc->wMaxPacketSize = le16_to_cpu(ep->wMaxPacketSize);
+	desc->wMaxPacketSize = usb_endpoint_maxp(ep);
 	desc->bMaxPacketSize0 = udev->descriptor.bMaxPacketSize0;
 
 	desc->orq = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 3f94ac34dce3..12cf5e7395a8 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -186,8 +186,7 @@ static int usbtmc_ioctl_abort_bulk_in(struct usbtmc_device_data *data)
 	for (n = 0; n < current_setting->desc.bNumEndpoints; n++)
 		if (current_setting->endpoint[n].desc.bEndpointAddress ==
 			data->bulk_in)
-			max_size = le16_to_cpu(current_setting->endpoint[n].
-						desc.wMaxPacketSize);
+			max_size = usb_endpoint_maxp(&current_setting->endpoint[n].desc);
 
 	if (max_size == 0) {
 		dev_err(dev, "Couldn't get wMaxPacketSize\n");
@@ -636,7 +635,7 @@ static int usbtmc_ioctl_clear(struct usbtmc_device_data *data)
 	for (n = 0; n < current_setting->desc.bNumEndpoints; n++) {
 		desc = &current_setting->endpoint[n].desc;
 		if (desc->bEndpointAddress == data->bulk_in)
-			max_size = le16_to_cpu(desc->wMaxPacketSize);
+			max_size = usb_endpoint_maxp(desc);
 	}
 
 	if (max_size == 0) {