Re: [PATCH] hwmon: (lm63) Drop redundant safety on cache lifetime

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On Sun, May 19, 2013 at 04:56:29PM +0200, Jean Delvare wrote:
> time_after (as opposed to time_after_equal) already ensures that the
> cache lifetime is at least as much as requested. There is no point in
> manually adding another jiffy to that value, and this can confuse the
> reader into wrong interpretation.
> 
> Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx>

Acked-by: Guenter Roeck <linux@xxxxxxxxxxxx>

> Cc: Imre Deak <imre.deak@xxxxxxxxx>
> ---
>  drivers/hwmon/lm63.c |    5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> --- linux-3.10-rc1.orig/drivers/hwmon/lm63.c	2013-05-19 16:34:42.927249143 +0200
> +++ linux-3.10-rc1/drivers/hwmon/lm63.c	2013-05-19 16:34:50.933419344 +0200
> @@ -247,9 +247,8 @@ static struct lm63_data *lm63_update_dev
>  
>  	mutex_lock(&data->update_lock);
>  
> -	next_update = data->last_updated
> -	  + msecs_to_jiffies(data->update_interval) + 1;
> -
> +	next_update = data->last_updated +
> +		      msecs_to_jiffies(data->update_interval);
>  	if (time_after(jiffies, next_update) || !data->valid) {
>  		if (data->config & 0x04) { /* tachometer enabled  */
>  			/* order matters for fan1_input */
> 
> 
> -- 
> Jean Delvare
> 
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> http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
> 

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