netdev - Re: [PATCH net-next v2 2/2] net: dsa: mv88e6xxx: Clear the PDOWN bit on setup

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Message-ID: <20160329162825.GC4690@lunn.ch>
Date:	Tue, 29 Mar 2016 18:28:25 +0200
From:	Andrew Lunn <andrew@...n.ch>
To:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Cc:	Patrick Uiterwijk <patrick@...terwijk.org>, linux@...ck-us.net,
	davem@...emloft.net, netdev@...r.kernel.org, dennis@...il.us,
	pbrobinson@...il.com
Subject: Re: [PATCH net-next v2 2/2] net: dsa: mv88e6xxx: Clear the PDOWN bit
 on setup

On Tue, Mar 29, 2016 at 12:23:06PM -0400, Vivien Didelot wrote:
> Hi Patrick,
> 
> Two comments below.
> 
> Patrick Uiterwijk <patrick@...terwijk.org> writes:
> 
> > +static int mv88e6xxx_power_on_serdes(struct dsa_switch *ds)
> 
> Since this function assumes the SMI lock is already held, its name
> should be prefixed with _ by convention (_mv88e6xxx_power_on_serdes).

We decided to drop at, since nearly everything would end up with a _
prefix. The assert_smi_lock() should find any missing locks, and
lockdep/deadlocks will make it clear when the lock is taken twice.

	  Andrew