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(parent: bda5314) | patch
USB: xhci: Remove unnecessary reads of IRQ_PENDING register.
authorSarah Sharp <sarah.a.sharp@linux.intel.com>
Fri, 30 Jul 2010 05:12:43 +0000 (22:12 -0700)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 10 Aug 2010 21:35:44 +0000 (14:35 -0700)
commit27e0dd4d7ccc3e8e2a79600c3608031022a2298c
tree0121f9f0a3de32ce09c4b26cf3b56284176994f7tree | snapshot
parentbda531452c143b0bafe3dd6567dbfe9274009345commit | diff
USB: xhci: Remove unnecessary reads of IRQ_PENDING register.

Remove a duplicate register read of the interrupt pending register from
xhci_irq().  Also, remove waiting on the posted write of that register.
The host will see it eventually.  It will probably read the register
itself before deciding whether to interrupt the system again, forcing the
posted write to complete.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/host/xhci-ring.c diff | blob | history
Port of xen3.3 xenlinux code to Ubuntu Precise kernel (3.2)