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bwn: remove unused ic_headroom

Description

bwn: remove unused ic_headroom

Unlike bwi(4), bwn(4) does not rely on ic_headroom (despite having it
set) but splits the bwn_txhdr (first) segment into its own transaction.
Remove ic_headroom to avoid net80211 troubles with not enough space in
the mbuf around ieee80211_mbuf_adjust().

PR: 275616
Approved by: re (cperciva)

(cherry picked from commit 59dba901f227420647e4856f03cb782a3375c220)
(cherry picked from commit 0f032804b6ec70c8f8ee4fe1ed83a3356946b5e8)

Details

Provenance
Frank Hilgendorf <frank.hilgendorf@posteo.de>Authored on Dec 13 2023, 11:48 PM
bzCommitted on Feb 19 2024, 4:05 PM
Parents
rG75316a59b39e: rdmsr_safe/wrmsr_safe: handle pcb_onfault nesting
Branches
Unknown
Tags
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Event Timeline

bz committed rGdc50f981e17c: bwn: remove unused ic_headroom (authored by Frank Hilgendorf <frank.hilgendorf@posteo.de>).Feb 19 2024, 4:05 PM