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 <[email protected]>
Signed-off-by: Jason A. Donenfeld <[email protected]>
---
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 5eb28f8ee87e..11536f115198 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;
}
--
2.37.3
"Jason A. Donenfeld" <[email protected]> writes:
> 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 <[email protected]>
> Signed-off-by: Jason A. Donenfeld <[email protected]>
Gregory, can I take this directly to wireless tree for v6.0?
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
On Mon, 2022-09-05 at 20:39 +0300, Kalle Valo wrote:
> "Jason A. Donenfeld" <[email protected]> writes:
>
> > 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 <[email protected]>
> > Signed-off-by: Jason A. Donenfeld <[email protected]>
>
> Gregory, can I take this directly to wireless tree for v6.0?
>
We have an identical patch in our tree that I wrote a while ago, just
hasn't made it out ... I guess you can :)
johannes
"Jason A. Donenfeld" <[email protected]> wrote:
> 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 <[email protected]>
> Signed-off-by: Jason A. Donenfeld <[email protected]>
Patch applied to wireless.git, thanks.
4d8421f2dd88 wifi: iwlwifi: don't spam logs with NSS>2 messages
--
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches