linux-kernel - [PATCH AUTOSEL 5.19 09/29] wifi: iwlwifi: don't spam logs with NSS>2 messages

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Message-Id: <20221002224922.238837-9-sashal@kernel.org>
Date:   Sun,  2 Oct 2022 18:49:02 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     "Jason A. Donenfeld" <Jason@...c4.com>,
        Johannes Berg <johannes.berg@...el.com>,
        Kalle Valo <kvalo@...nel.org>, Sasha Levin <sashal@...nel.org>,
        gregory.greenman@...el.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        luciano.coelho@...el.com, emmanuel.grumbach@...el.com,
        miriam.rachel.korenblit@...el.com, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.19 09/29] wifi: iwlwifi: don't spam logs with NSS>2 messages

From: "Jason A. Donenfeld" <Jason@...c4.com>

[ Upstream commit 4d8421f2dd88583cc7a4d6c2a5532c35e816a52a ]

I get a log line like this every 4 seconds when connected to my AP:

[15650.221468] iwlwifi 0000:09:00.0: Got NSS = 4 - trimming to 2

Looking at the code, this seems to be related to a hardware limitation,
and there's nothing to be done. In an effort to keep my dmesg
manageable, downgrade this error to "debug" rather than "info".

Cc: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
Signed-off-by: Kalle Valo <kvalo@...nel.org>
Link: https://lore.kernel.org/r/20220905172246.105383-1-Jason@zx2c4.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index c5626ff83805..640e3786c244 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1833,8 +1833,8 @@ static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm,
 	* If nss < MAX: we can set zeros in other streams
 	*/
 	if (nss > MAX_HE_SUPP_NSS) {
-		IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
-			 MAX_HE_SUPP_NSS);
+		IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
+			       MAX_HE_SUPP_NSS);
 		nss = MAX_HE_SUPP_NSS;
 	}
 
-- 
2.35.1