[ovs-git] [openvswitch/ovs] c32728: netdev-bsd: Fix sign extension bug in ifr_flags on...

[GitHub]

  Branch: refs/heads/branch-2.0
  Home:   https://github.com/openvswitch/ovs
  Commit: c327282702524b88cb9c2e739d52d929972b963e
      https://github.com/openvswitch/ovs/commit/c327282702524b88cb9c2e739d52d929972b963e
  Author: Kevin Lo <kevlo at FreeBSD.org>
  Date:   2015-04-05 (Sun, 05 Apr 2015)

  Changed paths:
    M lib/netdev-bsd.c

  Log Message:
  -----------
  netdev-bsd: Fix sign extension bug in ifr_flags on FreeBSD.

FreeBSD fills the int return value with ifr_flagshigh in the high
16 bits and ifr_flags in the low 16 bits rather than blindly promoting
ifr_flags to an int, which will preserve the sign.
This commit makes sure the flags returned isn't negative and apply mask
0xffff to flags.

Signed-off-by: Kevin Lo <kevlo at FreeBSD.org>
Signed-off-by: Ben Pfaff <blp at nicira.com>