diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2026-10-06 12:04:14 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2026-10-09 16:12:48 +0200 |
| commit | 17a3455f15c0a4edbcbad625ef227558499ea98f (patch) | |
| tree | 01bda375ae9dec6c3b579f405904a9e0eb00679d /include | |
| parent | 04655cc0d2a15a89a3869898303620094ee23e14 (diff) | |
wifi: nl80211: read WMM reg rule under RCU
freq_reg_info() returns a pointer into the current regdomain,
so we need RTNL, cfg80211_mutex or RCU, but I want to remove
the RTNL, so just use RCU here.
Also document that this is required, we didn't say when the
function could be used at all.
Link: https://patch.msgid.link/20261006120655.c6fce71ad991.I07ae7ed37bc8ff6d75c87e19d77e4c5379a8e167@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/cfg80211.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 5ae97e72cef2..f2cf71a75b2d 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -8197,6 +8197,8 @@ void wiphy_apply_custom_regulatory(struct wiphy *wiphy, * it wants to follow we respect that unless a country IE has been received * and processed already. * + * Must be called within an RCU read-side critical section. + * * Return: A valid pointer, or, when an error occurs, for example if no rule * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to * check and PTR_ERR() to obtain the numeric return value. The numeric return |