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Date: Thu, 18 May 2017 10:41:36 +0200
From: Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 2/9] timers: provide a "modern" variant of timers
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To: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@lst.de>, Thomas Gleixner <tglx@linutronix.de>, Mark Gross <mark.gross@intel.com>, Tejun Heo <tj@kernel.org>, linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, linux-s390 <linux-s390@vger.kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Thu, May 18, 2017 at 10:24:48AM +0200, Christoph Hellwig wrote:
> > b) give the union a name (breaks any reference to timer_list->func in C code):
> > 
> >  +       union {
> >  +               void            (*func)(struct timer_list *timer);
> >  +               void            (*function)(unsigned long);
> >  +       } u;
> 
> I'll look into that, as it seems a lot safer, and places outside
> the timer code shouldn't really touch it (although I bet they do,
> so more fixes for this series..)

Meh.  All the old init_timer users set function directly, so
I guess we need to use the other approach.