On Thu, May 21, 2015 at 04:32:34PM +0800, fu.wei@xxxxxxxxxx wrote:
> From: Fu Wei <fu.wei@xxxxxxxxxx>
>
> Also update Documentation/watchdog/watchdog-kernel-api.txt to
> introduce:
> (1)the new elements in the watchdog_device and watchdog_ops struct;
> (2)the new API "watchdog_init_timeouts".
>
> Reasons:
> (1)kernel already has two watchdog drivers are using "pretimeout":
> drivers/char/ipmi/ipmi_watchdog.c
> drivers/watchdog/kempld_wdt.c(but the definition is different)
> (2)some other dirvers are going to use this: ARM SBSA Generic Watchdog
>
> Signed-off-by: Fu Wei <fu.wei@xxxxxxxxxx>
> ---
[ ... ]
>
> +/* Use the following function to check if a pretimeout value is invalid */
> +static inline bool watchdog_pretimeout_invalid(struct watchdog_device *wdd,
> + unsigned int t)
> +{
> + return ((wdd->max_pretimeout != 0) &&
> + (t < wdd->min_pretimeout || t > wdd->max_pretimeout));
> +}
Should this function also enforce "t < wdd->timeout", and
should watchdog_timeout_invalid() enforce "t > wdd->pretimeout" ?
Thanks,
Guenter
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