Re: iwlwifi: Direct firmware load for iwl-debug-yoyo.bin failed with error -2

From: Kalle Valo <kvalo@codeaurora.org>
To: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Luca Coelho <luciano.coelho@intel.com>,
	Shahar S Matityahu <shahar.s.matityahu@intel.com>,
	Johannes Berg <johannes.berg@intel.com>,
	Emmanuel Grumbach <emmanuel.grumbach@intel.com>,
	Intel Linux Wireless <linuxwifi@intel.com>,
	linux-wireless@vger.kernel.org
Subject: Re: iwlwifi: Direct firmware load for iwl-debug-yoyo.bin failed with error -2
Date: Sun, 26 Jul 2020 10:22:50 +0300	[thread overview]
Message-ID: <87mu3magfp.fsf@tynnyri.adurom.net> (raw)
In-Reply-To: <CA+icZUWoycCvAAs5H0sigHTB+GGhX5NRVonYqKg7BRLB97dGkA@mail.gmail.com> (Sedat Dilek's message of "Sat, 25 Jul 2020 14:11:32 +0200")

Sedat Dilek <sedat.dilek@gmail.com> writes:

> Hi,
>
> I am seeing this failed/error message for a long time:
>
> [Sat Jul 25 13:03:28 2020] iwlwifi 0000:01:00.0: Direct firmware load
> for iwl-debug-yoyo.bin failed with error -2
>
> So, I started to look for the file "iwl-debug-yoyo.bin" in [1], but failed.
> AFAICS this is a file for debugging purposes?
>
> Why do I see such a message as an end-user w/o iwlwifi-debugging enabled?
> For some end-users I can imagine this looks scary and they will look
> into their cupboards and below their beds but will not find any
> monsters.
>
> I found a rename from an ini file to bin here:
> commit 8d9e982bf9bf ("iwlwifi: dbg_ini: rename external debug
> configuration file")
>
> Is "iwl-debug-yoyo.bin" a binary or as before an ini (text) file I
> have to configure somehow.
>
> Does this need to be guarded by some "ifdef CONFIG_IWLWIFI_DEBUG" in
> "drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c"?
>
> Or does drivers/net/wireless/intel/iwlwifi/Makefile needs some tuning
> - as said I have no iwlwifi debugging enabled via Kconfig?
> ...
> iwlwifi-objs            += iwl-dbg-tlv.o
>
> Please enlighten me/us?
>
> Thanks.
>
> Regards,
> - Sedat -
>
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/linux-firmware.git/
> [2] https://git.kernel.org/linus/e8d9e982bf9bf0e6f99099f1f09a37563b2b95b5
>
>>From my dmesg-output:
>
> [Sa Jul 25 13:03:28 2020] iwlwifi 0000:01:00.0: can't disable ASPM; OS
> doesn't have ASPM control
> [Sa Jul 25 13:03:28 2020] iwlwifi 0000:01:00.0: loaded firmware
> version 18.168.6.1 6000g2b-6.ucode op_mode iwldvm
> [Sa Jul 25 13:03:28 2020] iwlwifi 0000:01:00.0: Direct firmware load
> for iwl-debug-yoyo.bin failed with error -2

There's an RFC patch about this:

https://patchwork.kernel.org/patch/11625759/

I think that should be applied. Intel folks, should I take that directly
to wireless-drivers-next?

-- 
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches