Date: Sun, 08 Mar 2026 17:07:34 +0000 From: Bjoern A. Zeeb <bz@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 6cfd2b93e680 - main - net80211: fix VHT160/80P80/80 chanwidth selection in the "40-" case Message-ID: <69adacd6.45bf4.3cc0e7a1@gitrepo.freebsd.org>
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The branch main has been updated by bz: URL: https://cgit.FreeBSD.org/src/commit/?id=6cfd2b93e68061c7831016b91c2e308d01658764 commit 6cfd2b93e68061c7831016b91c2e308d01658764 Author: Bjoern A. Zeeb <bz@FreeBSD.org> AuthorDate: 2026-03-08 00:57:33 +0000 Commit: Bjoern A. Zeeb <bz@FreeBSD.org> CommitDate: 2026-03-08 13:50:02 +0000 net80211: fix VHT160/80P80/80 chanwidth selection in the "40-" case Depending on the base channel ni_vht_chan2 - ni_vht_chan1 can be negative. Apply abs() as indicated in the comments right above | CCFS1 - CCFS0 | = 8 or > 16 in order to fix the channel width selection. Sponsored by: The FreeBSD Foundation PR: 293645 Fixes: 4bf049bfeefd9 MFC after: 3 days Reviewed by: adrian Differential Revision: https://reviews.freebsd.org/D55717 --- sys/net80211/ieee80211_ht.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sys/net80211/ieee80211_ht.c b/sys/net80211/ieee80211_ht.c index 38568674a792..9b2b0df33785 100644 --- a/sys/net80211/ieee80211_ht.c +++ b/sys/net80211/ieee80211_ht.c @@ -34,6 +34,7 @@ #include <sys/param.h> #include <sys/kernel.h> +#include <sys/libkern.h> #include <sys/malloc.h> #include <sys/systm.h> #include <sys/endian.h> @@ -2038,11 +2039,11 @@ do { \ } /* CCFS1 > 0 and | CCFS1 - CCFS0 | = 8 */ - if (ni->ni_vht_chan2 > 0 && (ni->ni_vht_chan2 - ni->ni_vht_chan1) == 8) + if (ni->ni_vht_chan2 > 0 && abs(ni->ni_vht_chan2 - ni->ni_vht_chan1) == 8) can_vht160 = can_vht80 = true; /* CCFS1 > 0 and | CCFS1 - CCFS0 | > 16 */ - if (ni->ni_vht_chan2 > 0 && (ni->ni_vht_chan2 - ni->ni_vht_chan1) > 16) + if (ni->ni_vht_chan2 > 0 && abs(ni->ni_vht_chan2 - ni->ni_vht_chan1) > 16) can_vht80p80 = can_vht80 = true; /* CFFS1 == 0 */home | help
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