IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

[powerpc.git] / drivers / usb / host / ohci-q.c

diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index e372306..e08d1a2 100644 (file)
--- a/drivers/usb/host/ohci-q.c
+++ b/drivers/usb/host/ohci-q.c
@@ -7,6 +7,8 @@
  * This file is licenced under the GPL.
  */
 
+#include <linux/irq.h>
+
 static void urb_free_priv (struct ohci_hcd *hc, urb_priv_t *urb_priv)
 {
        int             last = urb_priv->length - 1;
@@ -34,7 +36,7 @@ static void urb_free_priv (struct ohci_hcd *hc, urb_priv_t *urb_priv)
  * PRECONDITION:  ohci lock held, irqs blocked.
  */
 static void
-finish_urb (struct ohci_hcd *ohci, struct urb *urb, struct pt_regs *regs)
+finish_urb (struct ohci_hcd *ohci, struct urb *urb)
 __releases(ohci->lock)
 __acquires(ohci->lock)
 {
@@ -73,7 +75,7 @@ __acquires(ohci->lock)
 
        /* urb->complete() can reenter this HCD */
        spin_unlock (&ohci->lock);
-       usb_hcd_giveback_urb (ohci_to_hcd(ohci), urb, regs);
+       usb_hcd_giveback_urb (ohci_to_hcd(ohci), urb);
        spin_lock (&ohci->lock);
 
        /* stop periodic dma if it's not needed */
@@ -910,7 +912,7 @@ static struct td *dl_reverse_done_list (struct ohci_hcd *ohci)
 
 /* there are some urbs/eds to unlink; called in_irq(), with HCD locked */
 static void
-finish_unlinks (struct ohci_hcd *ohci, u16 tick, struct pt_regs *regs)
+finish_unlinks (struct ohci_hcd *ohci, u16 tick)
 {
        struct ed       *ed, **last;
 
@@ -923,7 +925,7 @@ rescan_all:
                /* only take off EDs that the HC isn't using, accounting for
                 * frame counter wraps and EDs with partially retired TDs
                 */
-               if (likely (regs && HC_IS_RUNNING(ohci_to_hcd(ohci)->state))) {
+               if (likely (get_irq_regs() && HC_IS_RUNNING(ohci_to_hcd(ohci)->state))) {
                        if (tick_before (tick, ed->tick)) {
 skip_ed:
                                last = &ed->ed_next;
@@ -990,7 +992,7 @@ rescan_this:
                        /* if URB is done, clean up */
                        if (urb_priv->td_cnt == urb_priv->length) {
                                modified = completed = 1;
-                               finish_urb (ohci, urb, regs);
+                               finish_urb (ohci, urb);
                        }
                }
                if (completed && !list_empty (&ed->td_list))
@@ -1068,7 +1070,7 @@ rescan_this:
  * scanning the (re-reversed) donelist as this does.
  */
 static void
-dl_done_list (struct ohci_hcd *ohci, struct pt_regs *regs)
+dl_done_list (struct ohci_hcd *ohci)
 {
        struct td       *td = dl_reverse_done_list (ohci);
 
@@ -1084,7 +1086,7 @@ dl_done_list (struct ohci_hcd *ohci, struct pt_regs *regs)
 
                /* If all this urb's TDs are done, call complete() */
                if (urb_priv->td_cnt == urb_priv->length)
-                       finish_urb (ohci, urb, regs);
+                       finish_urb (ohci, urb);
 
                /* clean schedule:  unlink EDs that are no longer busy */
                if (list_empty (&ed->td_list)) {