From: Alan Stern <stern@rowland.harvard.edu>
Date: Wed, 14 Jul 2010 15:03:36 +0000 (-0400)
Subject: USB: EHCI: simplify remainder computations
X-Git-Tag: v2.6.36-rc1~293^2~61
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bccbefaae050186bed3bcc74b1fd1a9b8c6710b2;p=pandora-kernel.git

USB: EHCI: simplify remainder computations

This patch (as1406) adds a micro-optimization to ehci-hcd's scheduling
code.  Instead of computing remainders with respect to the schedule
length, use bitwise-and (which is quicker).  We know that the schedule
length will always be a power of two, but the compiler doesn't have
this information.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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