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From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel@savoirfairelinux.com,
	"David S. Miller" <davem@davemloft.net>,
	Florian Fainelli <f.fainelli@gmail.com>
Subject: Re: [PATCH net-next 8/8] net: dsa: mv88e6xxx: fail on mismatching probe
Date: Fri, 10 Jun 2016 16:32:03 -0400	[thread overview]
Message-ID: <87fuskkcos.fsf@ketchup.mtl.sfl> (raw)
In-Reply-To: <20160609022149.GF2227@lunn.ch>

Hi,

Andrew Lunn <andrew@lunn.ch> writes:

> On Wed, Jun 08, 2016 at 08:44:56PM -0400, Vivien Didelot wrote:
>> Now that we have access at probe time to the chip info described in the
>> device tree, check if the probed device matches the device node,
>> otherwise warn the user and fail.
>
> What good is this? So what if the device tree says a different
> model. We don't care, we don't use that information at all, we read it
> from the device itself.

So we can end up with a badly described device tree. It seems to be a
question of rigor vs. flexibility. I don't know much about the DT
philosophy and I don't really mind as long as we warn the user.

I'd like to have other opinions on this though before pushing v2.

Thanks,

        Vivien

      reply	other threads:[~2016-06-10 20:32 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-09  0:44 [PATCH net-next 0/8] net: dsa: mv88e6xxx: misc probe improvements Vivien Didelot
2016-06-09  0:44 ` [PATCH net-next 1/8] net: dsa: mv88e6xxx: fix style issues Vivien Didelot
2016-06-09  2:22   ` Andrew Lunn
2016-06-09  0:44 ` [PATCH net-next 2/8] net: dsa: mv88e6xxx: remove redundant assignments Vivien Didelot
2016-06-09  2:30   ` Andrew Lunn
2016-06-09  0:44 ` [PATCH net-next 3/8] net: dsa: mv88e6xxx: use already declared variables Vivien Didelot
2016-06-09  2:31   ` Andrew Lunn
2016-06-09  0:44 ` [PATCH net-next 4/8] net: dsa: mv88e6xxx: do not increment bus refcount Vivien Didelot
2016-06-09  2:36   ` Andrew Lunn
2016-06-10 19:59     ` Vivien Didelot
2016-06-10 20:06       ` Andrew Lunn
2016-06-09  0:44 ` [PATCH net-next 5/8] net: dsa: mv88e6xxx: add switch register helpers Vivien Didelot
2016-06-09  2:39   ` Andrew Lunn
2016-06-09 12:53     ` Vivien Didelot
2016-06-09  0:44 ` [PATCH net-next 6/8] net: dsa: mv88e6xxx: add chip detection helper Vivien Didelot
2016-06-09  0:44 ` [PATCH net-next 7/8] net: dsa: mv88e6xxx: explicit compatible devices Vivien Didelot
2016-06-09  2:14   ` Andrew Lunn
2016-06-10 20:26     ` Vivien Didelot
2016-06-09  0:44 ` [PATCH net-next 8/8] net: dsa: mv88e6xxx: fail on mismatching probe Vivien Didelot
2016-06-09  2:21   ` Andrew Lunn
2016-06-10 20:32     ` Vivien Didelot [this message]

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