From: Johannes Berg johannes.berg@intel.com
stable inclusion from stable-v6.6.33 commit 29caa342391ca7f499a7d6f638d84de5d9711269 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAD6H2
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 62bdd97598f8be82a24f556f78336b05d1c3e84b ]
For the mvm driver, data structures match what's in the firmware, we allocate FW IDs for them already etc. During link switch we already allocate/free the STA links appropriately, but initially we'd allocate them always. Fix this to allocate memory, a STA ID, etc. only for active links.
Fixes: 57974a55d995 ("wifi: iwlwifi: mvm: refactor iwl_mvm_mac_sta_state_common()") Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Miri Korenblit miriam.rachel.korenblit@intel.com Link: https://msgid.link/20240319100755.f2093ff73465.Ie891e1cc9c9df09ae22be6aad5c1... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Wang Hai wanghai38@huawei.com --- drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c index 278454c116fe..3907707e8771 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c @@ -582,14 +582,14 @@ static int iwl_mvm_mld_alloc_sta_links(struct iwl_mvm *mvm, struct ieee80211_sta *sta) { struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); + struct ieee80211_link_sta *link_sta; unsigned int link_id; int ret;
lockdep_assert_held(&mvm->mutex);
- for (link_id = 0; link_id < ARRAY_SIZE(sta->link); link_id++) { - if (!rcu_access_pointer(sta->link[link_id]) || - mvm_sta->link[link_id]) + for_each_sta_active_link(vif, sta, link_sta, link_id) { + if (WARN_ON(mvm_sta->link[link_id])) continue;
ret = iwl_mvm_mld_alloc_sta_link(mvm, vif, sta, link_id);