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

[mirror_ubuntu-focal-kernel.git] / drivers / usb / host / ehci-q.c

diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 7fc25b6bd7d249f487e4d2adf8a4ecc150613733..46327272f6148b7c044bec6c8d5c4f0737546310 100644 (file)
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -214,7 +214,7 @@ static void qtd_copy_status (
 }
 
 static void
-ehci_urb_done (struct ehci_hcd *ehci, struct urb *urb, struct pt_regs *regs)
+ehci_urb_done (struct ehci_hcd *ehci, struct urb *urb)
 __releases(ehci->lock)
 __acquires(ehci->lock)
 {
@@ -262,7 +262,7 @@ __acquires(ehci->lock)
 
        /* complete() can reenter this HCD */
        spin_unlock (&ehci->lock);
-       usb_hcd_giveback_urb (ehci_to_hcd(ehci), urb, regs);
+       usb_hcd_giveback_urb (ehci_to_hcd(ehci), urb);
        spin_lock (&ehci->lock);
 }
 
@@ -279,7 +279,7 @@ static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh);
  */
 #define HALT_BIT __constant_cpu_to_le32(QTD_STS_HALT)
 static unsigned
-qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh, struct pt_regs *regs)
+qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh)
 {
        struct ehci_qtd         *last = NULL, *end = qh->dummy;
        struct list_head        *entry, *tmp;
@@ -317,7 +317,7 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh, struct pt_regs *regs)
                /* clean up any state from previous QTD ...*/
                if (last) {
                        if (likely (last->urb != urb)) {
-                               ehci_urb_done (ehci, last->urb, regs);
+                               ehci_urb_done (ehci, last->urb);
                                count++;
                        }
                        ehci_qtd_free (ehci, last);
@@ -407,7 +407,7 @@ halt:
 
        /* last urb's completion might still need calling */
        if (likely (last != NULL)) {
-               ehci_urb_done (ehci, last->urb, regs);
+               ehci_urb_done (ehci, last->urb);
                count++;
                ehci_qtd_free (ehci, last);
        }
@@ -962,7 +962,7 @@ submit_async (
 
 /* the async qh for the qtds being reclaimed are now unlinked from the HC */
 
-static void end_unlink_async (struct ehci_hcd *ehci, struct pt_regs *regs)
+static void end_unlink_async (struct ehci_hcd *ehci)
 {
        struct ehci_qh          *qh = ehci->reclaim;
        struct ehci_qh          *next;
@@ -979,7 +979,7 @@ static void end_unlink_async (struct ehci_hcd *ehci, struct pt_regs *regs)
        ehci->reclaim = next;
        qh->reclaim = NULL;
 
-       qh_completions (ehci, qh, regs);
+       qh_completions (ehci, qh);
 
        if (!list_empty (&qh->qtd_list)
                        && HC_IS_RUNNING (ehci_to_hcd(ehci)->state))
@@ -1047,7 +1047,7 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
                /* if (unlikely (qh->reclaim != 0))
                 *      this will recurse, probably not much
                 */
-               end_unlink_async (ehci, NULL);
+               end_unlink_async (ehci);
                return;
        }
 
@@ -1059,8 +1059,7 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
 
 /*-------------------------------------------------------------------------*/
 
-static void
-scan_async (struct ehci_hcd *ehci, struct pt_regs *regs)
+static void scan_async (struct ehci_hcd *ehci)
 {
        struct ehci_qh          *qh;
        enum ehci_timer_action  action = TIMER_IO_WATCHDOG;
@@ -1084,7 +1083,7 @@ rescan:
                                 */
                                qh = qh_get (qh);
                                qh->stamp = ehci->stamp;
-                               temp = qh_completions (ehci, qh, regs);
+                               temp = qh_completions (ehci, qh);
                                qh_put (qh);
                                if (temp != 0) {
                                        goto rescan;