From: Jiri Bohac <jbohac@suse.cz>
Patch-mainline: Never, problem no longer present in v5.14
References: bsc#1192802
Subject: iwlwifi: fix spectre issue in iwl_dbgfs_update_pm

Found by Smatch:
	drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
		iwl_dbgfs_tof_range_request_write() warn: potential spectre issue 
		'mvm->tof_data.range_req.ap' [w] (local cap)

---
 drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
index b685e8281ca0..7b3b381b01ac 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
@@ -67,6 +67,7 @@
 #include "mvm.h"
 #include "fw/api/tof.h"
 #include "debugfs.h"
+#include <linux/nospec.h>
 
 static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
 				 struct ieee80211_vif *vif,
@@ -981,6 +982,7 @@ static ssize_t iwl_dbgfs_tof_range_request_write(struct ieee80211_vif *vif,
 			ret = -EINVAL;
 			goto out;
 		}
+		i = array_index_nospec(i, IWL_MVM_TOF_MAX_APS);
 
 		ap.burst_period = cpu_to_le16(burst_period);
 
-- 
2.32.0