linux-kernel - Re: [Regression][BISECTED] kernel boot hang after 19898ce9cf8a ("wifi: iwlwifi: split 22000.c into multiple files")

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Date:   Sun, 09 Jul 2023 20:07:40 +0200
From:   Johannes Berg <johannes@...solutions.net>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux regressions mailing list <regressions@...ts.linux.dev>
Cc:     "Zhang, Rui" <rui.zhang@...el.com>,
        "Greenman, Gregory" <gregory.greenman@...el.com>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "Baruch, Yaara" <yaara.baruch@...el.com>,
        "Ben Ami, Golan" <golan.ben.ami@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Sisodiya, Mukesh" <mukesh.sisodiya@...el.com>,
        Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        netdev <netdev@...r.kernel.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Bagas Sanjaya <bagasdotme@...il.com>
Subject: Re: [Regression][BISECTED] kernel boot hang after 19898ce9cf8a
 ("wifi: iwlwifi: split 22000.c into multiple files")

On Sun, 2023-07-09 at 09:31 -0700, Linus Torvalds wrote:
> On Fri, 7 Jul 2023 at 03:55, Linux regression tracking (Thorsten
> Leemhuis) <regressions@...mhuis.info> wrote:
> > 
> > [CCing the regression list, netdev, the net maintainers, and Linus;
> > Johannes and Kalle as well, but just for the record, they afaik are
> > unavailable]
> 
> So I will release rc1 with this issue, but remind me - if it hasn't
> had any traction next week and the radio silence continues, I'll just
> revert it all.

Sorry. I got back home a few hours ago (for few days anyway) and I think
I already know what the issue is. I'll send a fix to try in a few
minutes, was just trying to collect all the reported-by etc.

There's clearly a separate bug in the init failure path, but the reason
it fails in the first place is a mismatch between different changes.

johannes