commit | 63fb3a280061c5a1d9190015e5a074213f9d23c0 | [log] [tgz] |
---|---|---|
author | Alan Stern <stern@rowland.harvard.edu> | Fri Oct 11 11:28:02 2013 -0400 |
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Fri Oct 11 16:37:45 2013 -0700 |
tree | d19fa5a572dfc898651194b3ab50848035cc423a | |
parent | 6ec4147e7bdbde168f5bce30de5984aa4f971b22 [diff] |
USB: NS_TO_US should round up Host controller drivers use the NS_TO_US macro to convert transaction times, which are computed in nanoseconds, to microseconds for scheduling. Periodic scheduling requires worst-case estimates, but the macro does its conversion using round-to-nearest. This patch changes it to use round-up, giving a correct worst-case value. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>