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xhci: Use ilog2() rather than __ffs() for calculating SEGMENT_SHIFT
authorDavid Howells <dhowells@redhat.com>
Thu, 28 Mar 2013 18:48:28 +0000 (18:48 +0000)
committerSarah Sharp <sarah.a.sharp@linux.intel.com>
Wed, 3 Apr 2013 17:28:31 +0000 (10:28 -0700)
commit6a5d6943fe0e4b1e4c43c3aa1919360f68ae2f9a
tree9699df081c3ba3734dcca3fec525dc3d49e0e069tree | snapshot (tar.gz zip)
parent505bdbc79d20f8f2a56c02498f079bb23b0ef756commit | diff
xhci: Use ilog2() rather than __ffs() for calculating SEGMENT_SHIFT

Use ilog2() rather than __ffs() for calculating SEGMENT_SHIFT as ilog2() can
be worked out at compile time, whereas __ffs() must be calculated at runtime.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: linux-usb@vger.kernel.org
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
drivers/usb/host/xhci.h diff | blob | blame | history