tree 90bf693535d3bf75452f851c26563313bd3fc4d4
parent 5991874313eb2c96fd49b22ac225cf2907ffa548
author Stephen Hemminger <sthemmin@microsoft.com> 1477678867 -0700
committer Stephen Hemminger <sthemmin@microsoft.com> 1484329056 -0800

vmbus: use kernel bitops for traversing interrupt mask

Use standard kernel operations for find first set bit to traverse
the channel bit array. This has added benefit of speeding up
lookup on 64 bit and because it uses find first set instruction.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>