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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2021-12-28 22:14:53 +0100
committerJohannes Berg <johannes.berg@intel.com>2022-01-04 15:47:15 +0100
commitacb99b9b2a08f439a13eafffd2a59b798d983462 (patch)
tree4c6e2bd002d5bd4203cebac0806dc945c8e125fe /net
parent04be6d337d37400ad5b3d5f27ca87645ee5a18a3 (diff)
downloadlinux-acb99b9b2a08f439a13eafffd2a59b798d983462.tar.bz2
mac80211: Add stations iterator where the iterator function may sleep
ieee80211_iterate_active_interfaces() and ieee80211_iterate_active_interfaces_atomic() already exist, where the former allows the iterator function to sleep. Add ieee80211_iterate_stations() which is similar to ieee80211_iterate_stations_atomic() but allows the iterator to sleep. This is needed for adding SDIO support to the rtw88 driver. Some interators there are reading or writing registers. With the SDIO ops (sdio_readb, sdio_writeb and friends) this means that the iterator function may sleep. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Link: https://lore.kernel.org/r/20211228211501.468981-2-martin.blumenstingl@googlemail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/util.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 0e4e1956bcea..f71b042a5c8b 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -862,6 +862,19 @@ static void __iterate_stations(struct ieee80211_local *local,
}
}
+void ieee80211_iterate_stations(struct ieee80211_hw *hw,
+ void (*iterator)(void *data,
+ struct ieee80211_sta *sta),
+ void *data)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ mutex_lock(&local->sta_mtx);
+ __iterate_stations(local, iterator, data);
+ mutex_unlock(&local->sta_mtx);
+}
+EXPORT_SYMBOL_GPL(ieee80211_iterate_stations);
+
void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw,
void (*iterator)(void *data,
struct ieee80211_sta *sta),