linux-kernel - Re: Regression in 6.16-rc1 iwlwifi: IRQ issue

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Message-ID: <31460147-3df4-cb16-4537-ab3a0b5b9eb5@gmail.com>
Date: Tue, 17 Jun 2025 07:29:17 -0400
From: Woody Suwalski <terraluna977@...il.com>
To: LKML <linux-kernel@...r.kernel.org>
Cc: "Korenblit, Miriam Rachel" <miriam.rachel.korenblit@...el.com>,
 johannes.berg@...el.com
Subject: Re: Regression in 6.16-rc1 iwlwifi: IRQ issue

Woody Suwalski wrote:
> Hi Miri,
>
> Just had a chance to try 6.16-rc1 on an older Dell XPS and noticed a 
> constant stream of warning messages
> similar to
>
> "wrong command queue 0 (should be 9), sequence 0x0 readp=40 writep=40"
>
> However actual WiFi connection seems functional.
>
> Is it something you have taken care of in -next already or have I 
> found a new problem?
> And if the latter - can you make a quick patch to test, or will you 
> need a full bisection to analyze?
>
> Thanks, Woody
>
>
Fixed by a patch from Johannes:

diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/main.c b/drivers/net/wireless/intel/iwlwifi/dvm/main.c
index dbfd45948e8b..66211426aa3a 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/main.c
@@ -1316,6 +1316,7 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
  		     sizeof(trans->conf.no_reclaim_cmds));
  	memcpy(trans->conf.no_reclaim_cmds, no_reclaim_cmds,
  	       sizeof(no_reclaim_cmds));
+	trans->conf.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
  
  	switch (iwlwifi_mod_params.amsdu_size) {
  	case IWL_AMSDU_DEF:

Thanks, Woody