i40e: check desc pointer before printing
Check that the descriptors were allocated before trying to dump them to the logfile. While we're there, de-trick-ify the code so as to be easier to read and not abusing the types and unions. Change-ID: I22898f4b22cecda3582d4d9e4018da9cd540f177 Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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