netdev - Re: [PATCH] RFKILL: fix input layer initialisation

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Date:	Fri, 20 Jun 2008 21:23:15 +0200
From:	Ivo van Doorn <ivdoorn@...il.com>
To:	Dmitry <dbaryshkov@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] RFKILL: fix input layer initialisation

On Friday 20 June 2008, Dmitry wrote:
> Hi,
> 
> 2008/6/19 Ivo van Doorn <ivdoorn@...il.com>:
> > On Thursday 19 June 2008, Dmitry Baryshkov wrote:
> >> Initialise correctly last fields, so tasks can be actually executed
> >>
> >> Also move rfkill-input initialisation to subsys level so that it's
> >> available before generic drivers probing occurs.
> >>
> >> Signed-off-by: Dmitry Baryshkov <dbaryshkov@...il.com>
> >> ---
> >>  net/rfkill/rfkill-input.c |    7 ++++++-
> >>  1 files changed, 6 insertions(+), 1 deletions(-)
> >>
> >> diff --git a/net/rfkill/rfkill-input.c b/net/rfkill/rfkill-input.c
> >> index e4b051d..e4540fc 100644
> >> --- a/net/rfkill/rfkill-input.c
> >> +++ b/net/rfkill/rfkill-input.c
> >> @@ -181,6 +181,11 @@ static struct input_handler rfkill_handler = {
> >>
> >>  static int __init rfkill_handler_init(void)
> >>  {
> >> +     unsigned long last_run = jiffies - msecs_to_jiffies(500);
> >> +     rfkill_wlan.last = last_run;
> >> +     rfkill_bt.last = last_run;
> >> +     rfkill_uwb.last = last_run;
> >> +     rfkill_wimax.last = last_run;
> >
> > I'm not really fan of this approach
> > Can't this not be done someway in the DEFINE_RFKILL_TASK macro
> > where the entire structure is initialized?
> > That way it will automatically be set for all new rfkill task structures later.
> 
> IMHO it can't. the jiffies - mset_to_jiffies isn't a constant
> initialiser; gcc won't permit such a thing

True, but can't we make it a function then? rfkill_init_task() or something.
If we group the initialization steps as closely together as possible it will
make it easier to add new tasks later.

> >>       return input_register_handler(&rfkill_handler);
> >>  }
> >>
> >> @@ -190,5 +195,5 @@ static void __exit rfkill_handler_exit(void)
> >>       flush_scheduled_work();
> >>  }
> >>
> >> -module_init(rfkill_handler_init);
> >> +subsys_initcall(rfkill_handler_init);
> >>  module_exit(rfkill_handler_exit);
> >
> > This sounds good.
> >
> > Ivo
> >
> 
> 
> 


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