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rtwn: make sure RCR_APPFCS stays set in monitor mode / mode changes.
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Authored by adrian on Dec 16 2024, 8:12 PM.
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Details

Summary

My previous commit meant that APPFCS wasn't enabled during monitor
mode and likely other corner cases.

Ensure it stays on at all times.

This, amusingly, fixes monitor mode in RTL8812AU/RTL8821AU - without it,
I don't see HT/VHT frames in monitor mode but I can still receive them
in normal STA mode.

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Repository
rG FreeBSD src repository
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Build Status
Buildable 61206
Build 58090: arc lint + arc unit