From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: Martin Kaiser <martin@kaiser.cx>,
David Woodhouse <dwmw2@infradead.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Fabio Estevam <fabio.estevam@nxp.com>,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mtd: rawnand: mxc: remove __init qualifier from mxcnd_probe_dt
Date: Tue, 26 Jun 2018 09:36:50 +0200 [thread overview]
Message-ID: <20180626093650.5835593b@xps13> (raw)
In-Reply-To: <20180626092413.703249c8@bbrezillon>
Hi Boris,
On Tue, 26 Jun 2018 09:24:13 +0200, Boris Brezillon
<boris.brezillon@bootlin.com> wrote:
> On Tue, 26 Jun 2018 09:10:05 +0200
> Miquel Raynal <miquel.raynal@bootlin.com> wrote:
>
> > Hi Martin, Boris,
> >
> > On Fri, 22 Jun 2018 16:50:25 +0200, Martin Kaiser <martin@kaiser.cx>
> > wrote:
> >
> > > mxcnd_probe_dt is called from mxcnd_probe, which is not marked as __init.
> > >
> >
> > I think this line is just a side note and should be at the end of the
> > commit log.
> >
> > > Using the sysfs unbind, bind nodes, mxcnd_probe and mxcnd_probe_dt can
> > > potentially be called at any time. After the __init functions are cleaned,
> > > mxcnd_probe_dt is no longer available. Calling it anyway causes a crash.
> >
> > The above paragraph explains the problem and the solution, you can just
> > add something like "mcvnd_probe is untouched because it is already not
> > marked as __init" instead of the first line.
> >
> > >
> > > Signed-off-by: Martin Kaiser <martin@kaiser.cx>
> >
> > Boris, do you think this patch is a good candidate for stable?
> >
> > If yes, Martin, could you please add a couple of stable/fixes tags above
> > your SoB?
>
> We should at least have a Fixes tag. For the stable one, I'm not so
> sure because the bug does not exist in practice (the compiler always
> inline mxcnd_probe_dt()).
Fine, then a Fixes tag will be enough and I will take it into
nand/next as it is not urgent at all to have it in the main tree.
Miquèl
next prev parent reply other threads:[~2018-06-26 7:36 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-22 14:50 [PATCH] mtd: rawnand: mxc: remove __init qualifier from mxcnd_probe_dt Martin Kaiser
2018-06-26 7:10 ` Miquel Raynal
2018-06-26 7:24 ` Boris Brezillon
2018-06-26 7:36 ` Miquel Raynal [this message]
2018-06-27 8:55 ` Martin Kaiser
2018-06-27 8:52 ` [PATCH v2] " Martin Kaiser
2018-06-27 9:01 ` Miquel Raynal
2018-06-27 20:47 ` [PATCH v3] " Martin Kaiser
2018-06-27 21:35 ` Boris Brezillon
2018-07-01 18:12 ` Miquel Raynal
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