On Monday 13 December 2010 08:40:54 Felix Fietkau wrote:
>
> diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
> index cdca4c3..69f7792 100644
> --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
> +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
> @@ -30,9 +30,69 @@ void ar9003_paprd_enable(struct ath_hw *ah, bool val)
> +
> +static int get_streams(int mask)
> +{
> + return !!(mask & BIT(0)) + !!(mask & BIT(1)) + !!(mask & BIT(2));
> +}
> +
I think there's a generic library function for that:
hweight[8|16|32].
Also, some CPUs have a special "population count" instruction
and hweight* takes full advantage of that too.
Regards,
Chr
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