usb: Remove OHCI useless masking/unmasking of WDH interrupt

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Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=badef819229d455493ba97253dd0e4097b995624
Commit:     badef819229d455493ba97253dd0e4097b995624
Parent:     694cc2087e26f3f62b9f07c5d563564ed77ef203
Author:     Benjamin Herrenschmidt <[EMAIL PROTECTED]>
AuthorDate: Thu Dec 6 13:29:46 2007 -0800
Committer:  Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Fri Feb 1 14:34:53 2008 -0800

    usb: Remove OHCI useless masking/unmasking of WDH interrupt
    
    The OHCI driver's IRQ handler, while processing a WDH interrupt, masks
    and unmasks it.  I believe this is both broken (the write may still be
    posted during the donelist processing it's trying to safeguard) and
    useless as this IRQ may not be reissued until it's acked (unless this
    legacy code is an uncommented workaround for some chip erratum).
    
    Signed-off-by: Benjamin Herrenschmidt <[EMAIL PROTECTED]>
    Signed-off-by: David Brownell <[EMAIL PROTECTED]>
    Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
 drivers/usb/host/ohci-hcd.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index baca09a..8dd5d25 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -810,13 +810,9 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
        }
 
        if (ints & OHCI_INTR_WDH) {
-               if (HC_IS_RUNNING(hcd->state))
-                       ohci_writel (ohci, OHCI_INTR_WDH, &regs->intrdisable);
                spin_lock (&ohci->lock);
                dl_done_list (ohci);
                spin_unlock (&ohci->lock);
-               if (HC_IS_RUNNING(hcd->state))
-                       ohci_writel (ohci, OHCI_INTR_WDH, &regs->intrenable);
        }
 
        if (quirk_zfmicro(ohci) && (ints & OHCI_INTR_SF)) {
-
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