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Re: [PATCH] ath9k: remove repetitions of mask array size

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Thank you!

Kalle should be in CC.

Am 16.04.2016 um 16:54 schrieb Bob Copeland:
> The constant "123", which is the number of elements in
> mask_m / mask_p, is repeated several times in this function.
> 
> Replace memsets with array initialization, and replace a loop
> conditional with ARRAY_SIZE() so that we don't repeat ourselves.
> 
> Signed-off-by: Bob Copeland <me@xxxxxxxxxxxxxxx>

Reviewed-by: Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>

> ---
>  drivers/net/wireless/ath/ath9k/ar5008_phy.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
> index 1b271b9..8eea8d2 100644
> --- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
> +++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
> @@ -260,8 +260,8 @@ void ar5008_hw_cmn_spur_mitigate(struct ath_hw *ah,
>  	int cur_bin;
>  	int upper, lower, cur_vit_mask;
>  	int i;
> -	int8_t mask_m[123];
> -	int8_t mask_p[123];
> +	int8_t mask_m[123] = {0};
> +	int8_t mask_p[123] = {0};
>  	int8_t mask_amt;
>  	int tmp_mask;
>  	static const int pilot_mask_reg[4] = {
> @@ -274,9 +274,6 @@ void ar5008_hw_cmn_spur_mitigate(struct ath_hw *ah,
>  	};
>  	static const int inc[4] = { 0, 100, 0, 0 };
>  
> -	memset(&mask_m, 0, sizeof(int8_t) * 123);
> -	memset(&mask_p, 0, sizeof(int8_t) * 123);
> -
>  	cur_bin = -6000;
>  	upper = bin + 100;
>  	lower = bin - 100;
> @@ -302,7 +299,7 @@ void ar5008_hw_cmn_spur_mitigate(struct ath_hw *ah,
>  	upper = bin + 120;
>  	lower = bin - 120;
>  
> -	for (i = 0; i < 123; i++) {
> +	for (i = 0; i < ARRAY_SIZE(mask_m); i++) {
>  		if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
>  			/* workaround for gcc bug #37014 */
>  			volatile int tmp_v = abs(cur_vit_mask - bin);
> 


-- 
Regards,
Oleksij

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