pegasus usb-net: Fix endianness bugs

This fixes various endianness bugs. Some harmless and some real ones.
This is tested on a PowerPC-64 machine.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Stable <stable@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 2138535f2339e762590d5cdba26a8593de8c1199..73acbd244aa106493cbdf7c3474937ee44e370f1 100644 (file)
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -297,7 +297,7 @@ static int update_eth_regs_async(pegasus_t * pegasus)
 
        pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
        pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS;
-       pegasus->dr.wValue = 0;
+       pegasus->dr.wValue = cpu_to_le16(0);
        pegasus->dr.wIndex = cpu_to_le16(EthCtrl0);
        pegasus->dr.wLength = cpu_to_le16(3);
        pegasus->ctrl_urb->transfer_buffer_length = 3;
@@ -446,11 +446,12 @@ static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data)
        int i;
        __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
        int ret;
+       __le16 le_data = cpu_to_le16(data);
 
        set_registers(pegasus, EpromOffset, 4, d);
        enable_eprom_write(pegasus);
        set_register(pegasus, EpromOffset, index);
-       set_registers(pegasus, EpromData, 2, &data);
+       set_registers(pegasus, EpromData, 2, &le_data);
        set_register(pegasus, EpromCtrl, EPROM_WRITE);
 
        for (i = 0; i < REG_TIMEOUT; i++) {
@@ -923,29 +924,32 @@ static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev)
 
 static inline void disable_net_traffic(pegasus_t * pegasus)
 {
-       int tmp = 0;
+       __le16 tmp = cpu_to_le16(0);
 
-       set_registers(pegasus, EthCtrl0, 2, &tmp);
+       set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp);
 }
 
 static inline void get_interrupt_interval(pegasus_t * pegasus)
 {
-       __u8 data[2];
+       u16 data;
+       u8 interval;
 
-       read_eprom_word(pegasus, 4, (__u16 *) data);
+       read_eprom_word(pegasus, 4, &data);
+       interval = data >> 8;
        if (pegasus->usb->speed != USB_SPEED_HIGH) {
-               if (data[1] < 0x80) {
+               if (interval < 0x80) {
                        if (netif_msg_timer(pegasus))
                                dev_info(&pegasus->intf->dev, "intr interval "
                                        "changed from %ums to %ums\n",
-                                       data[1], 0x80);
-                       data[1] = 0x80;
+                                       interval, 0x80);
+                       interval = 0x80;
+                       data = (data & 0x00FF) | ((u16)interval << 8);
 #ifdef PEGASUS_WRITE_EEPROM
-                       write_eprom_word(pegasus, 4, *(__u16 *) data);
+                       write_eprom_word(pegasus, 4, data);
 #endif
                }
        }
-       pegasus->intr_interval = data[1];
+       pegasus->intr_interval = interval;
 }
 
 static void set_carrier(struct net_device *net)
@@ -1299,7 +1303,8 @@ static int pegasus_blacklisted(struct usb_device *udev)
        /* Special quirk to keep the driver from handling the Belkin Bluetooth
         * dongle which happens to have the same ID.
         */
-       if ((udd->idVendor == VENDOR_BELKIN && udd->idProduct == 0x0121) &&
+       if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) &&
+           (udd->idProduct == cpu_to_le16(0x0121)) &&
            (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
            (udd->bDeviceProtocol == 1))
                return 1;