tree f34c038e177f5ab0779870b6d2a40e0b155bc515
parent 0c12d91b7064e16e96939243187b12fbd99caac7
author Mitch A Williams <mitch.a.williams@intel.com> 1341015799 +0000
committer David S. Miller <davem@davemloft.net> 1341103245 -0700

igbvf: fix divide by zero

Using ethtool -C ethX rx-usecs 0 crashes with a divide by zero.
Refactor this function to fix this issue and make it more clear
what the intent of each conditional is. Add comment regarding
using a setting of zero.

CC: stable <stable@vger.kernel.org> [3.3+]
CC: David Ahern <daahern@cisco.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>