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SubjectRe: [PATCH 4/6] Watchdog: introdouce "pretimeout" into framework
On Mon, May 18, 2015 at 10:03:52PM +0200, Arnd Bergmann wrote:
> On Monday 18 May 2015 10:23:30 Guenter Roeck wrote:
> > >
> > > integrate watchdog_init_pretimeout and watchdog_init_timeout will be a
> > > little hard,
> > > we may need to change this API to :
> > >
> > > watchdog_init_timeouts(struct watchdog_device *wdd, unsigned int timeout_parm,
> > > unsigned int pretimeout_parm, struct device *dev)
> > >
> > > then we need to update all the watchdog drivers which use this API,
> > > maybe we can do this in a individual patchset, after this pretimeout
> > > patch is merged.
> > >
> > > Is that OK ? any thought?
> > >
> > That is what I would recommend.
> >
>
> The API change is fine, but I don't think you need to change all drivers.
>
> Just add a small wrapper function in the header file doing the conversion:
>
> static inline int watchdog_init_timeout(struct watchdog_device *wdd,
> unsigned int timeout_parm, struct device *dev)
> {
> return watchdog_init_timeouts(wdd, timeout_parm, ~0ul, dev);
> }
>
> Then you can update the drivers that actually use the pretimeout to
> use the new function at some point, and leave all other drivers calling
> the wrapper function.
>
Excellent idea.

Guenter


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