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From:   Ping-Ke Shih <pkshih@realtek.com>
To:     Kalle Valo <kvalo@kernel.org>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
CC:     "ath12k@lists.infradead.org" <ath12k@lists.infradead.org>
Subject: RE: [PATCH 31/50] wifi: ath12k: add mac.c
Thread-Topic: [PATCH 31/50] wifi: ath12k: add mac.c
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Date:   Mon, 15 Aug 2022 06:09:40 +0000
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 <20220812161003.27279-32-kvalo@kernel.org>
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> -----Original Message-----
> From: Kalle Valo <kvalo@kernel.org>
> Sent: Saturday, August 13, 2022 12:10 AM
> To: linux-wireless@vger.kernel.org
> Cc: ath12k@lists.infradead.org
> Subject: [PATCH 31/50] wifi: ath12k: add mac.c
> 
> From: Kalle Valo <quic_kvalo@quicinc.com>
> 
> (Patches split into one patch per file for easier review, but the final
> commit will be one big patch. See the cover letter for more info.)
> 
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
> ---
>  drivers/net/wireless/ath/ath12k/mac.c | 7054 +++++++++++++++++++++++++++++++++
>  1 file changed, 7054 insertions(+)
> 
> diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
> new file mode 100644
> index 000000000000..2ccbd83dc9ca
> --- /dev/null
> +++ b/drivers/net/wireless/ath/ath12k/mac.c
> @@ -0,0 +1,7054 @@

[...]

> +
> +static int get_num_chains(u32 mask)
> +{
> +	int num_chains = 0;
> +
> +	while (mask) {
> +		if (mask & BIT(0))
> +			num_chains++;
> +		mask >>= 1;
> +	}
> +
> +	return num_chains;
> +}

use hweight32()?

--
Ping-Ke