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Commit 1dd9124e authored by Emmanuel Grumbach's avatar Emmanuel Grumbach Committed by John W. Linville
Browse files

iwlagn: provide data after WARN_ON 



From time to time, we hit a WARN_ON in iwl_mac_remove_interface.
This basically means that we got out of sync with mac80211: the vif
we hold differs from the vif 80211 passes as parameter. Try to get
some data that will help to debug this.

Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 403ba56a

drivers/net/wireless/iwlwifi/iwl-core.c

+7 −1
Original line number Original line Diff line number Diff line
@@ -1328,7 +1328,13 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, 




	mutex_lock(&priv->shrd->mutex);

	mutex_lock(&priv->shrd->mutex);





	WARN_ON(ctx->vif != vif);

	if (WARN_ON(ctx->vif != vif)) {

		struct iwl_rxon_context *tmp;

		IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif);

		for_each_context(priv, tmp)

			IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n",

				tmp->ctxid, tmp, tmp->vif);

	}

	ctx->vif = NULL;

	ctx->vif = NULL;





	iwl_teardown_interface(priv, vif, false);

	iwl_teardown_interface(priv, vif, false);