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Message-ID: <20180926143928.56f1f079@coco.lan>
Date:   Wed, 26 Sep 2018 14:39:28 -0300
From:   Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     "Luck, Tony" <tony.luck@...el.com>,
        Greg KH <gregkh@...uxfoundation.org>,
        Justin Ernst <justin.ernst@....com>, russ.anderson@....com,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
        Aristeu Rozanski Filho <arozansk@...hat.com>
Subject: Re: [PATCH] Raise maximum number of memory controllers

Em Wed, 26 Sep 2018 18:17:49 +0200
Borislav Petkov <bp@...en8.de> escreveu:

> On Wed, Sep 26, 2018 at 01:03:40PM -0300, Mauro Carvalho Chehab wrote:
> > I guess this is/was needed to create things like this:
> > 
> > 	lrwxrwxrwx 1 root root 0 set 26 05:24 /sys/bus/edac/devices/mc -> ../../../devices/system/edac/mc  
> 
> They're still there:
> 
> $ ls -l /sys/bus/edac/devices/
> total 0
> lrwxrwxrwx 1 root root 0 Sep 26 18:15 csrow0 -> ../../../devices/system/edac/mc/mc0/csrow0
> lrwxrwxrwx 1 root root 0 Sep 26 18:15 dimm0 -> ../../../devices/system/edac/mc/mc0/dimm0
> lrwxrwxrwx 1 root root 0 Sep 26 18:15 dimm3 -> ../../../devices/system/edac/mc/mc0/dimm3
> lrwxrwxrwx 1 root root 0 Sep 26 18:15 dimm6 -> ../../../devices/system/edac/mc/mc0/dimm6
> lrwxrwxrwx 1 root root 0 Sep 26 18:15 dimm9 -> ../../../devices/system/edac/mc/mc0/dimm9
> lrwxrwxrwx 1 root root 0 Sep 26 18:15 mc -> ../../../devices/system/edac/mc
> lrwxrwxrwx 1 root root 0 Sep 26 18:15 mc0 -> ../../../devices/system/edac/mc/mc0
> 

Ok. Yeah, probably some changes at the driver's core made that bus
thing obsolete. Or maybe it is there to allow unbind/remove
the edac driver. Had you test it with KASAN and tried to unbind/remove
the EDAC driver?

Thanks,
Mauro

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