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>

8 files changed, 18 insertions, 18 deletions

diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index a6afd15f6a46..fe858711651c 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -213,7 +213,7 @@ static void adu_interrupt_in_callback(struct urb *urb)
 
         if (urb->actual_length > 0 && dev->interrupt_in_buffer[0] != 0x00) {
                 if (dev->read_buffer_length <
-                    (4 * le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize)) -
+                    (4 * usb_endpoint_maxp(dev->interrupt_in_endpoint)) -
                      (urb->actual_length)) {
                         memcpy (dev->read_buffer_primary +
                                 dev->read_buffer_length,
@@ -315,7 +315,7 @@ static int adu_open(struct inode *inode, struct file *file)
                          usb_rcvintpipe(dev->udev,
                                         dev->interrupt_in_endpoint->bEndpointAddress),
                          dev->interrupt_in_buffer,
-                         le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize),
+                         usb_endpoint_maxp(dev->interrupt_in_endpoint),
                          adu_interrupt_in_callback, dev,
                          dev->interrupt_in_endpoint->bInterval);
         dev->read_urb_finished = 0;
@@ -483,7 +483,7 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
                                                          usb_rcvintpipe(dev->udev,
                                                                         dev->interrupt_in_endpoint->bEndpointAddress),
                                                          dev->interrupt_in_buffer,
-                                                         le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize),
+                                                         usb_endpoint_maxp(dev->interrupt_in_endpoint),
                                                          adu_interrupt_in_callback,
                                                          dev,
                                                          dev->interrupt_in_endpoint->bInterval);
@@ -536,7 +536,7 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
                                  usb_rcvintpipe(dev->udev,
                                                 dev->interrupt_in_endpoint->bEndpointAddress),
                                 dev->interrupt_in_buffer,
-                                le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize),
+                                usb_endpoint_maxp(dev->interrupt_in_endpoint),
                                 adu_interrupt_in_callback,
                                 dev,
                                 dev->interrupt_in_endpoint->bInterval);
@@ -622,7 +622,7 @@ static ssize_t adu_write(struct file *file, const __user char *buffer,
                         dbg(4," %s : sending, count = %Zd", __func__, count);
 
                         /* write the data into interrupt_out_buffer from userspace */
-                        buffer_size = le16_to_cpu(dev->interrupt_out_endpoint->wMaxPacketSize);
+                        buffer_size = usb_endpoint_maxp(dev->interrupt_out_endpoint);
                         bytes_to_write = count > buffer_size ? buffer_size : count;
                         dbg(4," %s : buffer_size = %Zd, count = %Zd, bytes_to_write = %Zd",
                             __func__, buffer_size, count, bytes_to_write);
@@ -752,8 +752,8 @@ static int adu_probe(struct usb_interface *interface,
                 goto error;
         }
 
-        in_end_size = le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize);
-        out_end_size = le16_to_cpu(dev->interrupt_out_endpoint->wMaxPacketSize);
+        in_end_size = usb_endpoint_maxp(dev->interrupt_in_endpoint);
+        out_end_size = usb_endpoint_maxp(dev->interrupt_out_endpoint);
 
         dev->read_buffer_primary = kmalloc((4 * in_end_size), GFP_KERNEL);
         if (!dev->read_buffer_primary) {
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 2f41089cd854..2dbe600fbc11 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -2777,7 +2777,7 @@ static int ftdi_elan_probe(struct usb_interface *interface,
                 endpoint = &iface_desc->endpoint[i].desc;
                 if (!ftdi->bulk_in_endpointAddr &&
                     usb_endpoint_is_bulk_in(endpoint)) {
-                        buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
+                        buffer_size = usb_endpoint_maxp(endpoint);
                         ftdi->bulk_in_size = buffer_size;
                         ftdi->bulk_in_endpointAddr = endpoint->bEndpointAddress;
                         ftdi->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index c6184b4d1695..515b67fffab1 100644
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -359,7 +359,7 @@ static int idmouse_probe(struct usb_interface *interface,
         endpoint = &iface_desc->endpoint[0].desc;
         if (!dev->bulk_in_endpointAddr && usb_endpoint_is_bulk_in(endpoint)) {
                 /* we found a bulk in endpoint */
-                dev->orig_bi_size = le16_to_cpu(endpoint->wMaxPacketSize);
+                dev->orig_bi_size = usb_endpoint_maxp(endpoint);
                 dev->bulk_in_size = 0x200; /* works _much_ faster */
                 dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
                 dev->bulk_in_buffer =
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index a2190b983f52..81457904d6ba 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -803,7 +803,7 @@ static int iowarrior_probe(struct usb_interface *interface,
                         dev->int_out_endpoint = endpoint;
         }
         /* we have to check the report_size often, so remember it in the endianess suitable for our machine */
-        dev->report_size = le16_to_cpu(dev->int_in_endpoint->wMaxPacketSize);
+        dev->report_size = usb_endpoint_maxp(dev->int_in_endpoint);
         if ((dev->interface->cur_altsetting->desc.bInterfaceNumber == 0) &&
             (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56))
                 /* IOWarrior56 has wMaxPacketSize different from report size */
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
index cb4096201e29..48c166f0d764 100644
--- a/drivers/usb/misc/ldusb.c
+++ b/drivers/usb/misc/ldusb.c
@@ -721,7 +721,7 @@ static int ld_usb_probe(struct usb_interface *intf, const struct usb_device_id *
         if (dev->interrupt_out_endpoint == NULL)
                 dev_warn(&intf->dev, "Interrupt out endpoint not found (using control endpoint instead)\n");
 
-        dev->interrupt_in_endpoint_size = le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize);
+        dev->interrupt_in_endpoint_size = usb_endpoint_maxp(dev->interrupt_in_endpoint);
         dev->ring_buffer = kmalloc(ring_buffer_size*(sizeof(size_t)+dev->interrupt_in_endpoint_size), GFP_KERNEL);
         if (!dev->ring_buffer) {
                 dev_err(&intf->dev, "Couldn't allocate ring_buffer\n");
@@ -737,7 +737,7 @@ static int ld_usb_probe(struct usb_interface *intf, const struct usb_device_id *
                 dev_err(&intf->dev, "Couldn't allocate interrupt_in_urb\n");
                 goto error;
         }
-        dev->interrupt_out_endpoint_size = dev->interrupt_out_endpoint ? le16_to_cpu(dev->interrupt_out_endpoint->wMaxPacketSize) :
+        dev->interrupt_out_endpoint_size = dev->interrupt_out_endpoint ? usb_endpoint_maxp(dev->interrupt_out_endpoint) :
                                                                          udev->descriptor.bMaxPacketSize0;
         dev->interrupt_out_buffer = kmalloc(write_buffer_size*dev->interrupt_out_endpoint_size, GFP_KERNEL);
         if (!dev->interrupt_out_buffer) {
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index 6482c6e2e6bd..a989356f693e 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -409,7 +409,7 @@ static int tower_open (struct inode *inode, struct file *file)
                           dev->udev,
                           usb_rcvintpipe(dev->udev, dev->interrupt_in_endpoint->bEndpointAddress),
                           dev->interrupt_in_buffer,
-                          le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize),
+                          usb_endpoint_maxp(dev->interrupt_in_endpoint),
                           tower_interrupt_in_callback,
                           dev,
                           dev->interrupt_in_interval);
@@ -928,7 +928,7 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device
                 err("Couldn't allocate read_buffer");
                 goto error;
         }
-        dev->interrupt_in_buffer = kmalloc (le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize), GFP_KERNEL);
+        dev->interrupt_in_buffer = kmalloc (usb_endpoint_maxp(dev->interrupt_in_endpoint), GFP_KERNEL);
         if (!dev->interrupt_in_buffer) {
                 err("Couldn't allocate interrupt_in_buffer");
                 goto error;
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index 6ac106952e95..1871cdf10da3 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -347,7 +347,7 @@ static int lcd_probe(struct usb_interface *interface,
                 if (!dev->bulk_in_endpointAddr &&
                     usb_endpoint_is_bulk_in(endpoint)) {
                         /* we found a bulk in endpoint */
-                        buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
+                        buffer_size = usb_endpoint_maxp(endpoint);
                         dev->bulk_in_size = buffer_size;
                         dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
                         dev->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index bd715006b056..930962f49276 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -1585,8 +1585,8 @@ static struct urb *iso_alloc_urb(
 
         if (bytes < 0 || !desc)
                 return NULL;
-        maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
-        maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
+        maxp = 0x7ff & usb_endpoint_maxp(desc);
+        maxp *= 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11));
         packets = DIV_ROUND_UP(bytes, maxp);
 
         urb = usb_alloc_urb(packets, GFP_KERNEL);
@@ -1656,7 +1656,7 @@ test_iso_queue(struct usbtest_dev *dev, struct usbtest_param *param,
                 "... iso period %d %sframes, wMaxPacket %04x\n",
                 1 << (desc->bInterval - 1),
                 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
-                le16_to_cpu(desc->wMaxPacketSize));
+                usb_endpoint_maxp(desc));
 
         for (i = 0; i < param->sglen; i++) {
                 urbs[i] = iso_alloc_urb(udev, pipe, desc,