linux-kernel - Re: [PATCH] Raise maximum number of memory controllers

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Message-ID: <20180926093510.GA5584@zn.tnic>
Date:   Wed, 26 Sep 2018 11:35:11 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Luck, Tony" <tony.luck@...el.com>,
        Greg KH <gregkh@...uxfoundation.org>
Cc:     Justin Ernst <justin.ernst@....com>, russ.anderson@....com,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Raise maximum number of memory controllers

On Tue, Sep 25, 2018 at 08:07:33PM +0200, Borislav Petkov wrote:
> Now I remember. I did that for lockdep because it wants statically
> allocated memory. I'll try to think of something tomorrow.

Some more info after some staring:

We could've made the lock_class_key only static storage so that lockdep
is happy but then struct bus_type embeds the *whole* lock_class_key and
not a pointer to it.

Which leaves us with either:

* this fix postponing the problem

* or Greg coming and saying, you're using bus_type all wrong and you
shouldn't and you should remove it completely! :-)

Which would be much better.

Thx.

-- 
Regards/Gruss,
    Boris.

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