netdev - Re: [PATCH net-next v3 1/6] net: phy: mscc: migrate to phy_select/restore

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Message-ID: <20181119162529.GA31955@lunn.ch>
Date:   Mon, 19 Nov 2018 17:25:29 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Andreas Schwab <schwab@...e.de>
Cc:     Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Quentin Schulz <quentin.schulz@...tlin.com>,
        davem@...emloft.net, f.fainelli@...il.com,
        allan.nielsen@...rochip.com, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, thomas.petazzoni@...tlin.com,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCH net-next v3 1/6] net: phy: mscc: migrate to
 phy_select/restore_page functions

On Mon, Nov 19, 2018 at 05:14:38PM +0100, Andreas Schwab wrote:
> On Nov 19 2018, Andrew Lunn <andrew@...n.ch> wrote:
> 
> > Could you turn on lockdep and see if it reports a deadlock.
> 
> How do I "turn on lockdep"?

make menuconfig
Kernel hacking
Lock Debugging (spinlocks, mutexes, etc...) 
Lock debugging: prove locking correctness

It has changes its name at some point. it used to be called
CONFIG_LOCKDEP, for locking dependencies. Anybody who has been kernel
hacking for a while still calls it lockdep.

	Andrew