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Otherwise won't compile on generic 4.18.0 systems.
This code hasn't actually been compiled or tested on RHEL yet (a slightly different version was compiled but did not work).
Note: this code has not yet been compiled, so there may be compilation issues.
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Hello John,
The code change is for supporting hijack UDP. UDP will be slower than TCP, due to absence of TSO.
Where UDP can be used:
1. When network blocks unknown protocol
2. When network blocks TCP (due to tcp state machine or firewall preventing TCP flag "SR" to pass through).
Thanks