USB: remove unnecessary type casting of urb->context

urb->context code cleanup

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

37 files changed, 101 insertions, 101 deletions

diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index a51eeedc18d4..d470c72b737e 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -444,7 +444,7 @@ CXACRU_ALL_FILES(INIT);
 /* the following three functions are stolen from drivers/usb/core/message.c */
 static void cxacru_blocking_completion(struct urb *urb)
 {
-        complete((struct completion *)urb->context);
+        complete(urb->context);
 }
 
 static void cxacru_timeout_kill(unsigned long data)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 33cdf8fa2f20..7b572e75e73c 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -443,7 +443,7 @@ urbs:
 static void acm_write_bulk(struct urb *urb)
 {
         struct acm *acm;
-        struct acm_wb *wb = (struct acm_wb *)urb->context;
+        struct acm_wb *wb = urb->context;
 
         dbg("Entering acm_write_bulk with status %d", urb->status);
 
diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c
index 309c743a09d5..093938697426 100644
--- a/drivers/usb/misc/auerswald.c
+++ b/drivers/usb/misc/auerswald.c
@@ -284,7 +284,7 @@ static void auerchain_complete (struct urb * urb)
         int result;
 
         /* get pointer to element and to chain */
-        pauerchainelement_t acep = (pauerchainelement_t) urb->context;
+        pauerchainelement_t acep = urb->context;
         pauerchain_t         acp = acep->chain;
 
         /* restore original entries in urb */
@@ -594,7 +594,7 @@ ac_fail:/* free the elements */
 /* completion handler for synchronous chained URBs */
 static void auerchain_blocking_completion (struct urb *urb)
 {
-        pauerchain_chs_t pchs = (pauerchain_chs_t)urb->context;
+        pauerchain_chs_t pchs = urb->context;
         pchs->done = 1;
         wmb();
         wake_up (&pchs->wqh);
@@ -847,7 +847,7 @@ static int auerswald_status_retry (int status)
 /* Completion of asynchronous write block */
 static void auerchar_ctrlwrite_complete (struct urb * urb)
 {
-        pauerbuf_t bp = (pauerbuf_t) urb->context;
+        pauerbuf_t bp =  urb->context;
         pauerswald_t cp = ((pauerswald_t)((char *)(bp->list)-(unsigned long)(&((pauerswald_t)0)->bufctl)));
         dbg ("auerchar_ctrlwrite_complete called");
 
@@ -860,7 +860,7 @@ static void auerchar_ctrlwrite_complete (struct urb * urb)
 /* Completion handler for dummy retry packet */
 static void auerswald_ctrlread_wretcomplete (struct urb * urb)
 {
-        pauerbuf_t bp = (pauerbuf_t) urb->context;
+        pauerbuf_t bp = urb->context;
         pauerswald_t cp;
         int ret;
         int status = urb->status;
@@ -904,7 +904,7 @@ static void auerswald_ctrlread_complete (struct urb * urb)
         unsigned int  serviceid;
         pauerswald_t  cp;
         pauerscon_t   scp;
-        pauerbuf_t    bp  = (pauerbuf_t) urb->context;
+        pauerbuf_t bp = urb->context;
         int status = urb->status;
         int ret;
 
@@ -981,7 +981,7 @@ static void auerswald_int_complete (struct urb * urb)
         int ret;
         int status = urb->status;
         pauerbuf_t   bp = NULL;
-        pauerswald_t cp = (pauerswald_t) urb->context;
+        pauerswald_t cp = urb->context;
 
         dbg ("%s called", __func__);
 
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 148b7fe639b2..ec88b3bfee46 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -746,7 +746,7 @@ static ssize_t ftdi_elan_read(struct file *file, char __user *buffer,
 
 static void ftdi_elan_write_bulk_callback(struct urb *urb)
 {
-        struct usb_ftdi *ftdi = (struct usb_ftdi *)urb->context;
+        struct usb_ftdi *ftdi = urb->context;
         int status = urb->status;
 
         if (status && !(status == -ENOENT || status == -ECONNRESET ||
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 0a2549bc0540..1cb54a28347f 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -154,7 +154,7 @@ MODULE_DEVICE_TABLE(usb, iowarrior_ids);
  */
 static void iowarrior_callback(struct urb *urb)
 {
-        struct iowarrior *dev = (struct iowarrior *)urb->context;
+        struct iowarrior *dev = urb->context;
         int intr_idx;
         int read_idx;
         int aux_idx;
@@ -230,7 +230,7 @@ static void iowarrior_write_callback(struct urb *urb)
         struct iowarrior *dev;
         int status = urb->status;
 
-        dev = (struct iowarrior *)urb->context;
+        dev = urb->context;
         /* sync/async unlink faults aren't errors */
         if (status &&
             !(status == -ENOENT ||
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index fae5b1730ba2..9370326a5940 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -753,7 +753,7 @@ exit:
  */
 static void tower_interrupt_in_callback (struct urb *urb)
 {
-        struct lego_usb_tower *dev = (struct lego_usb_tower *)urb->context;
+        struct lego_usb_tower *dev = urb->context;
         int status = urb->status;
         int retval;
 
@@ -810,7 +810,7 @@ exit:
  */
 static void tower_interrupt_out_callback (struct urb *urb)
 {
-        struct lego_usb_tower *dev = (struct lego_usb_tower *)urb->context;
+        struct lego_usb_tower *dev = urb->context;
         int status = urb->status;
 
         dbg(4, "%s: enter, status %d", __func__, status);
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index ada7bf898fe9..7f7021ee4189 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -185,7 +185,7 @@ static void lcd_write_bulk_callback(struct urb *urb)
         struct usb_lcd *dev;
         int status = urb->status;
 
-        dev = (struct usb_lcd *)urb->context;
+        dev = urb->context;
 
         /* sync/async unlink faults aren't errors */
         if (status &&
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 678fac86c467..a51983854ca0 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -201,7 +201,7 @@ found:
 
 static void simple_callback (struct urb *urb)
 {
-        complete ((struct completion *) urb->context);
+        complete(urb->context);
 }
 
 static struct urb *simple_alloc_urb (
@@ -1046,7 +1046,7 @@ static void unlink1_callback (struct urb *urb)
                 status = usb_submit_urb (urb, GFP_ATOMIC);
         if (status) {
                 urb->status = status;
-                complete ((struct completion *) urb->context);
+                complete(urb->context);
         }
 }
 
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 5a2877c22129..0a322fc53d6e 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -248,7 +248,7 @@ static void belkin_sa_close (struct usb_serial_port *port, struct file *filp)
 
 static void belkin_sa_read_int_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct belkin_sa_private *priv;
         unsigned char *data = urb->transfer_buffer;
         int retval;
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index d077534ceaeb..c164e2cf2752 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -300,7 +300,7 @@ static int cyberjack_write_room( struct usb_serial_port *port )
 
 static void cyberjack_read_int_callback( struct urb *urb )
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct cyberjack_private *priv = usb_get_serial_port_data(port);
         unsigned char *data = urb->transfer_buffer;
         int status = urb->status;
@@ -357,7 +357,7 @@ resubmit:
 
 static void cyberjack_read_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct cyberjack_private *priv = usb_get_serial_port_data(port);
         struct tty_struct *tty;
         unsigned char *data = urb->transfer_buffer;
@@ -409,7 +409,7 @@ static void cyberjack_read_bulk_callback (struct urb *urb)
 
 static void cyberjack_write_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct cyberjack_private *priv = usb_get_serial_port_data(port);
         int status = urb->status;
 
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 01dfc0afc654..32121794808d 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -1209,7 +1209,7 @@ static void cypress_unthrottle (struct usb_serial_port *port)
 
 static void cypress_read_int_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct cypress_private *priv = usb_get_serial_port_data(port);
         struct tty_struct *tty;
         unsigned char *data = urb->transfer_buffer;
@@ -1361,7 +1361,7 @@ continue_read:
 
 static void cypress_write_int_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct cypress_private *priv = usb_get_serial_port_data(port);
         int result;
         int status = urb->status;
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index c7cbc02f1a70..d17d1645714f 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -1227,7 +1227,7 @@ static int digi_write(struct usb_serial_port *port, const unsigned char *buf, in
 static void digi_write_bulk_callback(struct urb *urb)
 {
 
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct usb_serial *serial;
         struct digi_port *priv;
         struct digi_serial *serial_priv;
@@ -1605,7 +1605,7 @@ static void digi_shutdown(struct usb_serial *serial)
 
 static void digi_read_bulk_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct digi_port *priv;
         struct digi_serial *serial_priv;
         int ret;
@@ -1664,7 +1664,7 @@ static void digi_read_bulk_callback(struct urb *urb)
 static int digi_read_inb_callback(struct urb *urb)
 {
 
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct tty_struct *tty = port->tty;
         struct digi_port *priv = usb_get_serial_port_data(port);
         int opcode = ((unsigned char *)urb->transfer_buffer)[0];
@@ -1754,7 +1754,7 @@ static int digi_read_inb_callback(struct urb *urb)
 static int digi_read_oob_callback(struct urb *urb)
 {
 
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct usb_serial *serial = port->serial;
         struct digi_port *priv = usb_get_serial_port_data(port);
         int opcode, line, status, val;
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index 5f731d4912f7..c5ec309a3cb1 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -340,7 +340,7 @@ static void empeg_write_bulk_callback (struct urb *urb)
 
 static void empeg_read_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct tty_struct *tty;
         unsigned char *data = urb->transfer_buffer;
         int result;
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 8b531b377dcb..23f51a41093e 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1377,7 +1377,7 @@ error_no_buffer:
 static void ftdi_write_bulk_callback (struct urb *urb)
 {
         unsigned long flags;
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct ftdi_private *priv;
         int data_offset;       /* will be 1 for the SIO and 0 otherwise */
         unsigned long countback;
@@ -1460,7 +1460,7 @@ static int ftdi_chars_in_buffer (struct usb_serial_port *port)
 
 static void ftdi_read_bulk_callback (struct urb *urb)
 { /* ftdi_read_bulk_callback */
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct tty_struct *tty;
         struct ftdi_private *priv;
         unsigned long countread;
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index 513d771adc4e..8ce5a56a48e3 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1046,7 +1046,7 @@ static void garmin_close (struct usb_serial_port *port, struct file * filp)
 static void garmin_write_bulk_callback (struct urb *urb)
 {
         unsigned long flags;
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int status = urb->status;
 
         if (port) {
@@ -1286,7 +1286,7 @@ static void garmin_read_process(struct garmin_data * garmin_data_p,
 static void garmin_read_bulk_callback (struct urb *urb)
 {
         unsigned long flags;
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct usb_serial *serial =  port->serial;
         struct garmin_data * garmin_data_p = usb_get_serial_port_data(port);
         unsigned char *data = urb->transfer_buffer;
@@ -1344,7 +1344,7 @@ static void garmin_read_int_callback (struct urb *urb)
 {
         unsigned long flags;
         int retval;
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct usb_serial *serial = port->serial;
         struct garmin_data * garmin_data_p = usb_get_serial_port_data(port);
         unsigned char *data = urb->transfer_buffer;
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 65765ce76251..537f12a027c2 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -331,7 +331,7 @@ static void flush_and_resubmit_read_urb (struct usb_serial_port *port)
 
 void usb_serial_generic_read_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         unsigned char *data = urb->transfer_buffer;
         int status = urb->status;
         unsigned long flags;
@@ -359,7 +359,7 @@ EXPORT_SYMBOL_GPL(usb_serial_generic_read_bulk_callback);
 
 void usb_serial_generic_write_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int status = urb->status;
 
         dbg("%s - port %d", __func__, port->number);
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 2b676732e9fa..ce2e487f3240 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -589,7 +589,7 @@ static int get_epic_descriptor(struct edgeport_serial *ep)
  *****************************************************************************/
 static void edge_interrupt_callback (struct urb *urb)
 {
-        struct edgeport_serial  *edge_serial = (struct edgeport_serial *)urb->context;
+        struct edgeport_serial  *edge_serial = urb->context;
         struct edgeport_port *edge_port;
         struct usb_serial_port *port;
         unsigned char *data = urb->transfer_buffer;
@@ -689,7 +689,7 @@ exit:
  *****************************************************************************/
 static void edge_bulk_in_callback (struct urb *urb)
 {
-        struct edgeport_serial  *edge_serial = (struct edgeport_serial *)urb->context;
+        struct edgeport_serial  *edge_serial = urb->context;
         unsigned char           *data = urb->transfer_buffer;
         int                     retval;
         __u16                   raw_data_length;
@@ -749,7 +749,7 @@ static void edge_bulk_in_callback (struct urb *urb)
  *****************************************************************************/
 static void edge_bulk_out_data_callback (struct urb *urb)
 {
-        struct edgeport_port *edge_port = (struct edgeport_port *)urb->context;
+        struct edgeport_port *edge_port = urb->context;
         struct tty_struct *tty;
         int status = urb->status;
 
@@ -782,7 +782,7 @@ static void edge_bulk_out_data_callback (struct urb *urb)
  *****************************************************************************/
 static void edge_bulk_out_cmd_callback (struct urb *urb)
 {
-        struct edgeport_port *edge_port = (struct edgeport_port *)urb->context;
+        struct edgeport_port *edge_port = urb->context;
         struct tty_struct *tty;
         int status = urb->status;
 
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 0d412ede839a..05e4fa730730 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -1710,7 +1710,7 @@ static void handle_new_lsr (struct edgeport_port *edge_port, int lsr_data, __u8
 
 static void edge_interrupt_callback (struct urb *urb)
 {
-        struct edgeport_serial *edge_serial = (struct edgeport_serial *)urb->context;
+        struct edgeport_serial *edge_serial = urb->context;
         struct usb_serial_port *port;
         struct edgeport_port *edge_port;
         unsigned char *data = urb->transfer_buffer;
@@ -1803,7 +1803,7 @@ exit:
 
 static void edge_bulk_in_callback (struct urb *urb)
 {
-        struct edgeport_port *edge_port = (struct edgeport_port *)urb->context;
+        struct edgeport_port *edge_port = urb->context;
         unsigned char *data = urb->transfer_buffer;
         struct tty_struct *tty;
         int retval = 0;
@@ -1897,7 +1897,7 @@ static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned c
 
 static void edge_bulk_out_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct edgeport_port *edge_port = usb_get_serial_port_data(port);
         int status = urb->status;
 
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index c90436ea8060..ea924dc48496 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -729,7 +729,7 @@ static void ipaq_close(struct usb_serial_port *port, struct file *filp)
 
 static void ipaq_read_bulk_callback(struct urb *urb)
 {
-        struct usb_serial_port  *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port  *port = urb->context;
         struct tty_struct       *tty;
         unsigned char           *data = urb->transfer_buffer;
         int                     result;
@@ -869,7 +869,7 @@ static void ipaq_write_gather(struct usb_serial_port *port)
 
 static void ipaq_write_bulk_callback(struct urb *urb)
 {
-        struct usb_serial_port  *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port  *port = urb->context;
         struct ipaq_private     *priv = usb_get_serial_port_data(port);
         unsigned long           flags;
         int                     result;
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index 496009cff3a8..004d57385a75 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -393,7 +393,7 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int
 
 static void ir_write_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int status = urb->status;
 
         dbg("%s - port %d", __func__, port->number);
@@ -417,7 +417,7 @@ static void ir_write_bulk_callback (struct urb *urb)
 
 static void ir_read_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct tty_struct *tty;
         unsigned char *data = urb->transfer_buffer;
         int result;
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index b486a54c6f46..8a217648b250 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -186,7 +186,7 @@ static int iuu_tiocmget(struct usb_serial_port *port, struct file *file)
 
 static void iuu_rxcmd(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int result;
         dbg("%s - enter", __func__);
 
@@ -240,7 +240,7 @@ static int iuu_reset(struct usb_serial_port *port, u8 wt)
  */
 static void iuu_update_status_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct iuu_private *priv = usb_get_serial_port_data(port);
         u8 *st;
         dbg("%s - enter", __func__);
@@ -270,7 +270,7 @@ static void iuu_update_status_callback(struct urb *urb)
 
 static void iuu_status_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int result;
         dbg("%s - enter", __func__);
 
@@ -392,7 +392,7 @@ static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1,
 
 static void iuu_led_activity_on(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int result;
         char *buf_ptr = port->write_urb->transfer_buffer;
         *buf_ptr++ = IUU_SET_LED;
@@ -413,7 +413,7 @@ static void iuu_led_activity_on(struct urb *urb)
 
 static void iuu_led_activity_off(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int result;
         char *buf_ptr = port->write_urb->transfer_buffer;
         if (xmas == 1) {
@@ -616,7 +616,7 @@ static int iuu_uart_flush(struct usb_serial_port *port)
 
 static void read_buf_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         unsigned char *data = urb->transfer_buffer;
         struct tty_struct *tty;
         dbg("%s - urb->status = %d", __func__, urb->status);
@@ -692,7 +692,7 @@ static int iuu_read_buf(struct usb_serial_port *port, int len)
 
 static void iuu_uart_read_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct iuu_private *priv = usb_get_serial_port_data(port);
         unsigned int flags;
         int status;
@@ -781,7 +781,7 @@ static int iuu_uart_write(struct usb_serial_port *port, const u8 *buf,
 
 static void read_rxcmd_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int result;
         dbg("%s - enter", __func__);
 
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 0d122feb2b22..3df8a66c5c3c 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -445,7 +445,7 @@ static void	usa26_indat_callback(struct urb *urb)
                 return;
         }
 
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
         tty = port->tty;
         if (tty && urb->actual_length) {
                 /* 0x80 bit is error flag */
@@ -490,7 +490,7 @@ static void	usa2x_outdat_callback(struct urb *urb)
         struct usb_serial_port *port;
         struct keyspan_port_private *p_priv;
 
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
         p_priv = usb_get_serial_port_data(port);
         dbg ("%s - urb %d", __func__, urb == p_priv->out_urbs[1]);
 
@@ -509,7 +509,7 @@ static void	usa26_outcont_callback(struct urb *urb)
         struct usb_serial_port *port;
         struct keyspan_port_private *p_priv;
 
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
         p_priv = usb_get_serial_port_data(port);
 
         if (p_priv->resend_cont) {
@@ -528,7 +528,7 @@ static void	usa26_instat_callback(struct urb *urb)
         int old_dcd_state, err;
         int status = urb->status;
 
-        serial = (struct usb_serial *) urb->context;
+        serial =  urb->context;
 
         if (status) {
                 dbg("%s - nonzero status: %x", __func__, status);
@@ -599,7 +599,7 @@ static void usa28_indat_callback(struct urb *urb)
 
         dbg ("%s", __func__);
 
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
         p_priv = usb_get_serial_port_data(port);
         data = urb->transfer_buffer;
 
@@ -613,7 +613,7 @@ static void usa28_indat_callback(struct urb *urb)
                         return;
                 }
 
-                port = (struct usb_serial_port *) urb->context;
+                port =  urb->context;
                 p_priv = usb_get_serial_port_data(port);
                 data = urb->transfer_buffer;
 
@@ -647,7 +647,7 @@ static void	usa28_outcont_callback(struct urb *urb)
         struct usb_serial_port *port;
         struct keyspan_port_private *p_priv;
 
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
         p_priv = usb_get_serial_port_data(port);
 
         if (p_priv->resend_cont) {
@@ -667,7 +667,7 @@ static void	usa28_instat_callback(struct urb *urb)
         int old_dcd_state;
         int status = urb->status;
 
-        serial = (struct usb_serial *) urb->context;
+        serial =  urb->context;
 
         if (status) {
                 dbg("%s - nonzero status: %x", __func__, status);
@@ -733,7 +733,7 @@ static void	usa49_glocont_callback(struct urb *urb)
 
         dbg ("%s", __func__);
 
-        serial = (struct usb_serial *) urb->context;
+        serial =  urb->context;
         for (i = 0; i < serial->num_ports; ++i) {
                 port = serial->port[i];
                 p_priv = usb_get_serial_port_data(port);
@@ -761,7 +761,7 @@ static void	usa49_instat_callback(struct urb *urb)
 
         dbg ("%s", __func__);
 
-        serial = (struct usb_serial *) urb->context;
+        serial =  urb->context;
 
         if (status) {
                 dbg("%s - nonzero status: %x", __func__, status);
@@ -836,7 +836,7 @@ static void	usa49_indat_callback(struct urb *urb)
                 return;
         }
 
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
         tty = port->tty;
         if (tty && urb->actual_length) {
                 /* 0x80 bit is error flag */
@@ -973,7 +973,7 @@ static void usa90_indat_callback(struct urb *urb)
                 return;
         }
 
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
         p_priv = usb_get_serial_port_data(port);
 
         tty = port->tty;
@@ -1037,7 +1037,7 @@ static void	usa90_instat_callback(struct urb *urb)
         int old_dcd_state, err;
         int status = urb->status;
 
-        serial = (struct usb_serial *) urb->context;
+        serial =  urb->context;
 
         if (status) {
                 dbg("%s - nonzero status: %x", __func__, status);
@@ -1084,7 +1084,7 @@ static void	usa90_outcont_callback(struct urb *urb)
         struct usb_serial_port *port;
         struct keyspan_port_private *p_priv;
 
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
         p_priv = usb_get_serial_port_data(port);
 
         if (p_priv->resend_cont) {
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index b650fb4754b4..ff54203944ca 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -214,7 +214,7 @@ static void keyspan_pda_request_unthrottle(struct work_struct *work)
 
 static void keyspan_pda_rx_interrupt (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct tty_struct *tty = port->tty;
         unsigned char *data = urb->transfer_buffer;
         int i;
@@ -608,7 +608,7 @@ exit:
 
 static void keyspan_pda_write_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct keyspan_pda_private *priv;
 
         port->write_urb_busy = 0;
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index b3ac045ab408..b395ac759888 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -567,7 +567,7 @@ exit:
 
 static void klsi_105_write_bulk_callback ( struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int status = urb->status;
 
         dbg("%s - port %d", __func__, port->number);
@@ -628,7 +628,7 @@ static int klsi_105_write_room (struct usb_serial_port *port)
 
 static void klsi_105_read_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct klsi_105_private *priv = usb_get_serial_port_data(port);
         struct tty_struct *tty;
         unsigned char *data = urb->transfer_buffer;
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index e25c0c2791eb..5fc2cef30e39 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -514,7 +514,7 @@ static void mct_u232_close (struct usb_serial_port *port, struct file *filp)
 
 static void mct_u232_read_int_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct mct_u232_private *priv = usb_get_serial_port_data(port);
         struct usb_serial *serial = port->serial;
         struct tty_struct *tty;
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 7823222570b6..6bcb82d3911a 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -449,7 +449,7 @@ static void mos7840_control_callback(struct urb *urb)
         int result = 0;
         int status = urb->status;
 
-        mos7840_port = (struct moschip_port *)urb->context;
+        mos7840_port = urb->context;
 
         switch (status) {
         case 0:
@@ -554,7 +554,7 @@ static void mos7840_interrupt_callback(struct urb *urb)
         length = urb->actual_length;
         data = urb->transfer_buffer;
 
-        serial = (struct usb_serial *)urb->context;
+        serial = urb->context;
 
         /* Moschip get 5 bytes
          * Byte 1 IIR Port 1 (port.number is 0)
@@ -685,7 +685,7 @@ static void mos7840_bulk_in_callback(struct urb *urb)
                 return;
         }
 
-        mos7840_port = (struct moschip_port *)urb->context;
+        mos7840_port = urb->context;
         if (!mos7840_port) {
                 dbg("%s", "NULL mos7840_port pointer \n");
                 return;
@@ -752,7 +752,7 @@ static void mos7840_bulk_out_data_callback(struct urb *urb)
         int status = urb->status;
         int i;
 
-        mos7840_port = (struct moschip_port *)urb->context;
+        mos7840_port = urb->context;
         spin_lock(&mos7840_port->pool_lock);
         for (i = 0; i < NUM_URBS; i++) {
                 if (urb == mos7840_port->write_urb_pool[i]) {
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index 10090cb52d31..7b7422f49478 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -194,7 +194,7 @@ static void omninet_close (struct usb_serial_port *port, struct file * filp)
 
 static void omninet_read_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port  *port   = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port  *port   = urb->context;
         unsigned char           *data   = urb->transfer_buffer;
         struct omninet_header   *header = (struct omninet_header *) &data[0];
         int status = urb->status;
@@ -309,7 +309,7 @@ static int omninet_write_room (struct usb_serial_port *port)
 static void omninet_write_bulk_callback (struct urb *urb)
 {
 /*      struct omninet_header   *header = (struct omninet_header  *) urb->transfer_buffer; */
-        struct usb_serial_port  *port   = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port  *port   =  urb->context;
         int status = urb->status;
 
         dbg("%s - port %0x\n", __func__, port->number);
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index a83892627d66..e4be2d442b1e 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -545,7 +545,7 @@ static void option_indat_callback(struct urb *urb)
         dbg("%s: %p", __func__, urb);
 
         endpoint = usb_pipeendpoint(urb->pipe);
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
 
         if (status) {
                 dbg("%s: nonzero status: %d on endpoint %02x.",
@@ -579,7 +579,7 @@ static void option_outdat_callback(struct urb *urb)
 
         dbg("%s", __func__);
 
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
 
         usb_serial_port_softint(port);
 
@@ -597,7 +597,7 @@ static void option_instat_callback(struct urb *urb)
 {
         int err;
         int status = urb->status;
-        struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port *port =  urb->context;
         struct option_port_private *portdata = usb_get_serial_port_data(port);
         struct usb_serial *serial = port->serial;
 
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index 87f33e06301c..d92bb6501c84 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -871,7 +871,7 @@ static void oti6858_shutdown(struct usb_serial *serial)
 
 static void oti6858_read_int_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port *port =  urb->context;
         struct oti6858_private *priv = usb_get_serial_port_data(port);
         int transient = 0, can_recv = 0, resubmit = 1;
         int status = urb->status;
@@ -985,7 +985,7 @@ static void oti6858_read_int_callback(struct urb *urb)
 
 static void oti6858_read_bulk_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port *port =  urb->context;
         struct oti6858_private *priv = usb_get_serial_port_data(port);
         struct tty_struct *tty;
         unsigned char *data = urb->transfer_buffer;
@@ -1038,7 +1038,7 @@ static void oti6858_read_bulk_callback(struct urb *urb)
 
 static void oti6858_write_bulk_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port *port =  urb->context;
         struct oti6858_private *priv = usb_get_serial_port_data(port);
         int status = urb->status;
         int result;
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index c60930ec9341..c605fb68f807 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -945,7 +945,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port,
 
 static void pl2303_read_int_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port *port =  urb->context;
         unsigned char *data = urb->transfer_buffer;
         unsigned int actual_length = urb->actual_length;
         int status = urb->status;
@@ -985,7 +985,7 @@ exit:
 
 static void pl2303_read_bulk_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port *port =  urb->context;
         struct pl2303_private *priv = usb_get_serial_port_data(port);
         struct tty_struct *tty;
         unsigned char *data = urb->transfer_buffer;
@@ -1068,7 +1068,7 @@ static void pl2303_read_bulk_callback(struct urb *urb)
 
 static void pl2303_write_bulk_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port *port =  urb->context;
         struct pl2303_private *priv = usb_get_serial_port_data(port);
         int result;
         int status = urb->status;
diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c
index e6acac49a9c8..94bddf06ea4f 100644
--- a/drivers/usb/serial/safe_serial.c
+++ b/drivers/usb/serial/safe_serial.c
@@ -195,7 +195,7 @@ static __u16 __inline__ fcs_compute10 (unsigned char *sp, int len, __u16 fcs)
 
 static void safe_read_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port *port =  urb->context;
         unsigned char *data = urb->transfer_buffer;
         unsigned char length = urb->actual_length;
         int result;
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 23188873eb07..29074c1ba22b 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -457,7 +457,7 @@ static void sierra_indat_callback(struct urb *urb)
         dbg("%s: %p", __func__, urb);
 
         endpoint = usb_pipeendpoint(urb->pipe);
-        port = (struct usb_serial_port *) urb->context;
+        port =  urb->context;
 
         if (status) {
                 dbg("%s: nonzero status: %d on endpoint %02x.",
@@ -487,7 +487,7 @@ static void sierra_instat_callback(struct urb *urb)
 {
         int err;
         int status = urb->status;
-        struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+        struct usb_serial_port *port =  urb->context;
         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
         struct usb_serial *serial = port->serial;
 
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index e0b1564de900..a1c8aef01417 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1098,7 +1098,7 @@ static void ti_break(struct usb_serial_port *port, int break_state)
 
 static void ti_interrupt_callback(struct urb *urb)
 {
-        struct ti_device *tdev = (struct ti_device *)urb->context;
+        struct ti_device *tdev = urb->context;
         struct usb_serial_port *port;
         struct usb_serial *serial = tdev->td_serial;
         struct ti_port *tport;
@@ -1181,7 +1181,7 @@ exit:
 
 static void ti_bulk_in_callback(struct urb *urb)
 {
-        struct ti_port *tport = (struct ti_port *)urb->context;
+        struct ti_port *tport = urb->context;
         struct usb_serial_port *port = tport->tp_port;
         struct device *dev = &urb->dev->dev;
         int status = urb->status;
@@ -1247,7 +1247,7 @@ exit:
 
 static void ti_bulk_out_callback(struct urb *urb)
 {
-        struct ti_port *tport = (struct ti_port *)urb->context;
+        struct ti_port *tport = urb->context;
         struct usb_serial_port *port = tport->tp_port;
         struct device *dev = &urb->dev->dev;
         int status = urb->status;
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index a100a52a376e..5fc20122145f 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -478,7 +478,7 @@ static int visor_chars_in_buffer (struct usb_serial_port *port)
 
 static void visor_write_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct visor_private *priv = usb_get_serial_port_data(port);
         int status = urb->status;
         unsigned long flags;
@@ -502,7 +502,7 @@ static void visor_write_bulk_callback (struct urb *urb)
 
 static void visor_read_bulk_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct visor_private *priv = usb_get_serial_port_data(port);
         unsigned char *data = urb->transfer_buffer;
         int status = urb->status;
@@ -553,7 +553,7 @@ static void visor_read_bulk_callback (struct urb *urb)
 
 static void visor_read_int_callback (struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         int status = urb->status;
         int result;
 
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 6926a81a0ccd..e96bf8663ffc 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -965,7 +965,7 @@ static void command_port_write_callback(struct urb *urb)
 
 static void command_port_read_callback(struct urb *urb)
 {
-        struct usb_serial_port *command_port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *command_port = urb->context;
         struct whiteheat_command_private *command_info;
         int status = urb->status;
         unsigned char *data = urb->transfer_buffer;
@@ -1015,7 +1015,7 @@ static void command_port_read_callback(struct urb *urb)
 
 static void whiteheat_read_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct whiteheat_urb_wrap *wrap;
         unsigned char *data = urb->transfer_buffer;
         struct whiteheat_private *info = usb_get_serial_port_data(port);
@@ -1059,7 +1059,7 @@ static void whiteheat_read_callback(struct urb *urb)
 
 static void whiteheat_write_callback(struct urb *urb)
 {
-        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct usb_serial_port *port = urb->context;
         struct whiteheat_private *info = usb_get_serial_port_data(port);
         struct whiteheat_urb_wrap *wrap;
         int status = urb->status;
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index db55ec39bb83..6610d2dd1e7f 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -110,7 +110,7 @@
  */
 static void usb_stor_blocking_completion(struct urb *urb)
 {
-        struct completion *urb_done_ptr = (struct completion *)urb->context;
+        struct completion *urb_done_ptr = urb->context;
 
         complete(urb_done_ptr);
 }
diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c
index 73e6a66d95a7..be76084c8d7e 100644
--- a/drivers/usb/usb-skeleton.c
+++ b/drivers/usb/usb-skeleton.c
@@ -212,7 +212,7 @@ static void skel_write_bulk_callback(struct urb *urb)
 {
         struct usb_skel *dev;
 
-        dev = (struct usb_skel *)urb->context;
+        dev = urb->context;
 
         /* sync/async unlink faults aren't errors */
         if (urb->status) {