Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <CA+icZUWoycCvAAs5H0sigHTB+GGhX5NRVonYqKg7BRLB97dGkA@mail.gmail.com>
 <87mu3magfp.fsf@tynnyri.adurom.net> <CA+icZUUY_cSbhT8piRED_RBw4rjrMesVoNgj-sCLnGU0zoAzWA@mail.gmail.com>
In-Reply-To: <CA+icZUUY_cSbhT8piRED_RBw4rjrMesVoNgj-sCLnGU0zoAzWA@mail.gmail.com>
Reply-To: sedat.dilek@gmail.com
From:   Sedat Dilek <sedat.dilek@gmail.com>
Date:   Tue, 28 Jul 2020 23:23:29 +0200
Message-ID: <CA+icZUVCPxjp3zQg1rgx+33v1vjZCep6uEg4wkmq3MdY4a9j5w@mail.gmail.com>
Subject: Re: iwlwifi: Direct firmware load for iwl-debug-yoyo.bin failed with
 error -2
To:     Kalle Valo <kvalo@codeaurora.org>
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
Content-Type: text/plain; charset="UTF-8"
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

On Tue, Jul 28, 2020 at 3:13 PM Sedat Dilek <sedat.dilek@gmail.com> wrote:
>
> On Sun, Jul 26, 2020 at 9:23 AM Kalle Valo <kvalo@codeaurora.org> wrote:
> >
> > 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?
> >
>
> Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # Linux v5.8-rc7; GCC
> v10.2 + GNU/ld v2.35
>

Re-tested with LLVM/Clang/LLD v11.0.0-rc1.

- Sedat -