From 61e7d91bcf7725b9fcd9cbfc5fa0e0f84f19e6de Mon Sep 17 00:00:00 2001
From: Luca Coelho <luciano.coelho@intel.com>
Date: Fri, 1 Sep 2017 18:57:35 +0300
Subject: [PATCH] iwlwifi: mvm: handle FIF_ALLMULTI when setting multicast addresses
Git-commit: 61e7d91bcf7725b9fcd9cbfc5fa0e0f84f19e6de
Patch-mainline: v4.14-rc4
References: FATE#326294

We were ignoring the FIF_ALLMULTI flag when setting the multicast
addresses with MCAST_FILTER_CMD.  Check if this flag is set and enable
pass_all accordingly.  We also need to set the count to 0 if pass_all
is enable so we don't pass addresses to the firmware when not needed
(as doing so causes an assert).

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=196741

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 635db63f972e..3bcaa82f59b2 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1643,6 +1643,12 @@ static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
 	if (!cmd)
 		goto out;
 
+	if (changed_flags & FIF_ALLMULTI)
+		cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
+
+	if (cmd->pass_all)
+		cmd->count = 0;
+
 	iwl_mvm_recalc_multicast(mvm);
 out:
 	mutex_unlock(&mvm->mutex);
-- 
2.19.2