From: Johannes Berg <johannes@sipsolutions.net>
To: linux-wireless@vger.kernel.org
Cc: Johannes Berg <johannes.berg@intel.com>,
Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Subject: [PATCH 25/40] wifi: cfg80211: reg: hold wiphy mutex for wdev iteration
Date: Mon, 28 Aug 2023 13:59:53 +0200 [thread overview]
Message-ID: <20230828135928.70547c5a6593.I2497429a1c6445b1e22143203d81de25ff4c0bb8@changeid> (raw)
In-Reply-To: <20230828115927.116700-41-johannes@sipsolutions.net>
From: Johannes Berg <johannes.berg@intel.com>
Since we will want to remove the wdev lock in the future,
lock the wiphy here to iterate and check the flags.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/wireless/reg.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index f861d1d82b18..1cdaf273d775 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -3575,14 +3575,17 @@ static bool is_wiphy_all_set_reg_flag(enum ieee80211_regulatory_flags flag)
struct wireless_dev *wdev;
for_each_rdev(rdev) {
+ wiphy_lock(&rdev->wiphy);
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
wdev_lock(wdev);
if (!(wdev->wiphy->regulatory_flags & flag)) {
wdev_unlock(wdev);
+ wiphy_unlock(&rdev->wiphy);
return false;
}
wdev_unlock(wdev);
}
+ wiphy_unlock(&rdev->wiphy);
}
return true;
--
2.41.0
next prev parent reply other threads:[~2023-08-28 12:06 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-28 11:59 [PATCH 00/40] wifi: cfg80211/mac80211: locking cleanups Johannes Berg
2023-08-28 11:59 ` [PATCH 01/40] wifi: mac80211: debugfs: lock wiphy instead of RTNL Johannes Berg
2023-08-28 11:59 ` [PATCH 02/40] wifi: mac80211: hold wiphy lock in netdev/link debugfs Johannes Berg
2023-08-28 11:59 ` [PATCH 03/40] wifi: mac80211: lock wiphy for aggregation debugfs Johannes Berg
2023-08-28 11:59 ` [PATCH 04/40] wifi: cfg80211: check RTNL when iterating devices Johannes Berg
2023-08-28 11:59 ` [PATCH 05/40] wifi: cfg80211: add flush functions for wiphy work Johannes Berg
2023-08-28 11:59 ` [PATCH 06/40] wifi: mac80211: flush wiphy work where appropriate Johannes Berg
2023-08-28 11:59 ` [PATCH 07/40] wifi: mac80211: convert A-MPDU work to wiphy work Johannes Berg
2023-08-28 11:59 ` [PATCH 08/40] wifi: mac80211: add more ops assertions Johannes Berg
2023-08-28 11:59 ` [PATCH 09/40] wifi: mac80211: move DFS CAC work to wiphy work Johannes Berg
2023-08-28 11:59 ` [PATCH 10/40] wifi: mac80211: move radar detect " Johannes Berg
2023-08-28 11:59 ` [PATCH 11/40] wifi: mac80211: move scan " Johannes Berg
2023-08-28 11:59 ` [PATCH 12/40] wifi: mac80211: move monitor " Johannes Berg
2023-08-28 11:59 ` [PATCH 13/40] wifi: mac80211: lock wiphy in IP address notifier Johannes Berg
2023-08-28 11:59 ` [PATCH 14/40] wifi: mac80211: move offchannel works to wiphy work Johannes Berg
2023-08-28 11:59 ` [PATCH 15/40] wifi: mac80211: move link activation work " Johannes Berg
2023-08-28 11:59 ` [PATCH 16/40] wifi: mac80211: move dynamic PS " Johannes Berg
2023-08-28 11:59 ` [PATCH 17/40] wifi: mac80211: move sched-scan stop work " Johannes Berg
2023-08-28 11:59 ` [PATCH 18/40] wifi: mac80211: move TDLS " Johannes Berg
2023-08-28 11:59 ` [PATCH 19/40] wifi: mac80211: move key tailroom " Johannes Berg
2023-08-28 11:59 ` [PATCH 20/40] wifi: mac80211: move tspec " Johannes Berg
2023-08-28 11:59 ` [PATCH 21/40] wifi: mac80211: move filter reconfig " Johannes Berg
2023-08-28 11:59 ` [PATCH 22/40] wifi: mac80211: move CSA finalize " Johannes Berg
2023-08-28 11:59 ` [PATCH 23/40] wifi: mac80211: move color change " Johannes Berg
2023-08-28 11:59 ` [PATCH 24/40] wifi: mac80211: check wiphy mutex in ops Johannes Berg
2023-08-28 11:59 ` Johannes Berg [this message]
2023-08-28 11:59 ` [PATCH 26/40] wifi: cfg80211: sme: hold wiphy lock for wdev iteration Johannes Berg
2023-08-28 11:59 ` [PATCH 27/40] wifi: cfg80211: hold wiphy lock in cfg80211_any_wiphy_oper_chan() Johannes Berg
2023-08-28 11:59 ` [PATCH 28/40] wifi: cfg80211: check wiphy mutex is held for wdev mutex Johannes Berg
2023-08-28 11:59 ` [PATCH 29/40] wifi: mac80211: ethtool: hold wiphy mutex Johannes Berg
2023-08-28 11:59 ` [PATCH 30/40] wifi: mac80211: hold wiphy_lock around concurrency checks Johannes Berg
2023-08-28 11:59 ` [PATCH 31/40] wifi: mac80211: extend wiphy lock in interface removal Johannes Berg
2023-08-28 12:00 ` [PATCH 32/40] wifi: mac80211: take wiphy lock for MAC addr change Johannes Berg
2023-08-28 12:00 ` [PATCH 33/40] wifi: mac80211: remove sta_mtx Johannes Berg
2023-08-28 12:00 ` [PATCH 34/40] wifi: mac80211: remove key_mtx Johannes Berg
2023-08-28 12:00 ` [PATCH 35/40] wifi: mac80211: remove chanctx_mtx Johannes Berg
2023-08-28 12:00 ` [PATCH 36/40] wifi: mac80211: remove ampdu_mlme.mtx Johannes Berg
2023-08-28 12:00 ` [PATCH 37/40] wifi: mac80211: remove local->mtx Johannes Berg
2023-08-28 12:00 ` [PATCH 38/40] wifi: mac80211: reduce iflist_mtx Johannes Berg
2023-08-28 12:00 ` [PATCH 39/40] wifi: mac80211: set wiphy for virtual monitors Johannes Berg
2023-08-28 12:00 ` [PATCH 40/40] wifi: cfg80211: remove wdev mutex Johannes Berg
2023-08-29 10:18 ` [PATCH v2 " Johannes Berg
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