From: Junjie Cao <junjie.cao@intel.com>
To: linux-wireless@vger.kernel.org,
Miri Korenblit <miriam.rachel.korenblit@intel.com>,
Johannes Berg <johannes.berg@intel.com>,
Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: linux-kernel@vger.kernel.org, pagadala.yesu.anjaneyulu@intel.com,
shaul.triebitz@intel.com, yedidya.ben.shimol@intel.com,
junjie.cao@intel.com
Subject: [PATCH] wifi: iwlwifi: fix aux ROC time event iterator usage
Date: Thu, 16 Oct 2025 09:49:19 +0800 [thread overview]
Message-ID: <20251016014919.383565-1-junjie.cao@intel.com> (raw)
The list_for_each_entry() iterator must not be used outside the loop.
Even though we break and check for NULL, doing so still violates kernel
iteration rules and triggers Coccinelle's use_after_iter.cocci warning.
Cache the matched entry in aux_roc_te and use it consistently after the
loop. This follows iterator best practices, resolves the warning, and
makes the code more maintainable.
Signed-off-by: Junjie Cao <junjie.cao@intel.com>
---
.../net/wireless/intel/iwlwifi/mvm/time-event.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
index 0c9c2492d8a7..0b12ee8ad618 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
@@ -463,7 +463,7 @@ static int iwl_mvm_aux_roc_te_handle_notif(struct iwl_mvm *mvm,
if (!aux_roc_te) /* Not a Aux ROC time event */
return -EINVAL;
- iwl_mvm_te_check_trigger(mvm, notif, te_data);
+ iwl_mvm_te_check_trigger(mvm, notif, aux_roc_te);
IWL_DEBUG_TE(mvm,
"Aux ROC time event notification - UID = 0x%x action %d (error = %d)\n",
@@ -475,14 +475,14 @@ static int iwl_mvm_aux_roc_te_handle_notif(struct iwl_mvm *mvm,
/* End TE, notify mac80211 */
ieee80211_remain_on_channel_expired(mvm->hw);
iwl_mvm_roc_finished(mvm); /* flush aux queue */
- list_del(&te_data->list); /* remove from list */
- te_data->running = false;
- te_data->vif = NULL;
- te_data->uid = 0;
- te_data->id = TE_MAX;
+ list_del(&aux_roc_te->list); /* remove from list */
+ aux_roc_te->running = false;
+ aux_roc_te->vif = NULL;
+ aux_roc_te->uid = 0;
+ aux_roc_te->id = TE_MAX;
} else if (le32_to_cpu(notif->action) == TE_V2_NOTIF_HOST_EVENT_START) {
set_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status);
- te_data->running = true;
+ aux_roc_te->running = true;
ieee80211_ready_on_channel(mvm->hw); /* Start TE */
} else {
IWL_DEBUG_TE(mvm,
--
2.43.0
reply other threads:[~2025-10-16 1:49 UTC|newest]
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