Date: Wed, 15 Jan 2025 23:36:17 GMT 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: 054c5ddf587a - main - net80211: add IEEE80211_IS_LOCKED() Message-ID: <202501152336.50FNaHH2009655@gitrepo.freebsd.org>
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The branch main has been updated by bz: URL: https://cgit.FreeBSD.org/src/commit/?id=054c5ddf587a7a0c430cf64dbf100b718eafdcc5 commit 054c5ddf587a7a0c430cf64dbf100b718eafdcc5 Author: Bjoern A. Zeeb <bz@FreeBSD.org> AuthorDate: 2025-01-15 22:50:01 +0000 Commit: Bjoern A. Zeeb <bz@FreeBSD.org> CommitDate: 2025-01-15 23:36:00 +0000 net80211: add IEEE80211_IS_LOCKED() When trying to sort out a teardown locking problem (downcall in the driver can sleep) I found that the fan-out tree was getting too big to fix net80211 locking per-se for this while working on entirely different problems. Add IEEE80211_IS_LOCKED() so the driver can check and un-/re-lock as necessary (as we do in other cases already) to avoid panics on debug kernels left and right. Sponsored by: The FreeBSD Foundation MFC after: 3 days Reviewed by: adrian Differential Revision: https://reviews.freebsd.org/D48475 --- sys/net80211/ieee80211_freebsd.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/net80211/ieee80211_freebsd.h b/sys/net80211/ieee80211_freebsd.h index b58c55cc7652..ed913f7b3661 100644 --- a/sys/net80211/ieee80211_freebsd.h +++ b/sys/net80211/ieee80211_freebsd.h @@ -73,6 +73,8 @@ typedef struct { mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_OWNED) #define IEEE80211_UNLOCK_ASSERT(_ic) \ mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_NOTOWNED) +#define IEEE80211_IS_LOCKED(_ic) \ + mtx_owned(IEEE80211_LOCK_OBJ(_ic)) /* * Transmit lock.
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