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Fix checking if the DF flag was set in ENA driver
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Authored by mk_semihalf.com on Oct 31 2017, 1:45 PM.
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Details

Summary

The previous way of checking for DF was not valid.
When DF is enabled, the DF bit should be 1.

The original way of checking it was wrong in 2 ways: first of all, it
was not checking for single bit, secondly, it was checking for 0.

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Repository
rS FreeBSD src repository - subversion
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