linux-kernel - Re: [REGRESSION] failed to boot: commit 1aec4211204d parport: daisy: use new parport device model

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Date:   Mon, 25 Mar 2019 11:04:49 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [REGRESSION] failed to boot: commit 1aec4211204d parport: daisy:
 use new parport device model

On Mon, Mar 25, 2019 at 8:36 AM Steven Rostedt <rostedt@...dmis.org> wrote:
>
> I bisected it down to this commit:
>
>   aec4211204d ("parport: daisy: use new parport device model")

I was confused, because no such commit exists.

But it turns out you have the right commit ID in your subject line,
and you just dropped the initial '1' .

Anyway, that commit does look odd - why is the daisy_drv_init() done
by parport_bus_init() rather than just as a regular module init? And
as a result, now when daisy_drv_init() blocks, that blocks
parport_bus_init(). I dunno. It seems to not really have a good reason
for it.

I think it should just be reverted unless Sudip can come up with a
trivial fix. Greg?

                   Linus