linux-kernel - [PATCH 5.0 32/32] ath10k: Drop WARN_ON()s that always trigger during system resume

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Message-Id: <20190504102453.455405100@linuxfoundation.org>
Date:   Sat,  4 May 2019 12:25:17 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Brian Norris <briannorris@...omium.org>,
        Claire Chang <tientzu@...omium.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Kalle Valo <kvalo@...eaurora.org>
Subject: [PATCH 5.0 32/32] ath10k: Drop WARN_ON()s that always trigger during system resume

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

commit 9e80ad37f6788ed52b89a3cfcd593e0aa69b216d upstream.

ath10k_mac_vif_chan() always returns an error for the given vif
during system-wide resume which reliably triggers two WARN_ON()s
in ath10k_bss_info_changed() and they are not particularly
useful in that code path, so drop them.

Tested: QCA6174 hw3.2 PCI with WLAN.RM.2.0-00180-QCARMSWPZ-1
Tested: QCA6174 hw3.2 SDIO with WLAN.RMH.4.4.1-00007-QCARMSWP-1

Fixes: cd93b83ad927 ("ath10k: support for multicast rate control")
Fixes: f279294e9ee2 ("ath10k: add support for configuring management packet rate")
Cc: stable@...r.kernel.org
Reviewed-by: Brian Norris <briannorris@...omium.org>
Tested-by: Brian Norris <briannorris@...omium.org>
Tested-by: Claire Chang <tientzu@...omium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/ath/ath10k/mac.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -5705,7 +5705,7 @@ static void ath10k_bss_info_changed(stru
 	}

 	if (changed & BSS_CHANGED_MCAST_RATE &&
-	    !WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def))) {
+	    !ath10k_mac_vif_chan(arvif->vif, &def)) {
 		band = def.chan->band;
 		rateidx = vif->bss_conf.mcast_rate[band] - 1;

@@ -5743,7 +5743,7 @@ static void ath10k_bss_info_changed(stru
 	}

 	if (changed & BSS_CHANGED_BASIC_RATES) {
-		if (WARN_ON(ath10k_mac_vif_chan(vif, &def))) {
+		if (ath10k_mac_vif_chan(vif, &def)) {
 			mutex_unlock(&ar->conf_mutex);
 			return;
 		}