linux-kernel - Re: AW: [PATCH] wifi: ath12k: Remove some dead code

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Message-ID: <bd9f392c-93e5-7147-0f21-f6732b210df5@wanadoo.fr>
Date:   Thu, 18 May 2023 08:17:03 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Walter Harms <wharms@....de>, Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        "ath12k@...ts.infradead.org" <ath12k@...ts.infradead.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: AW: [PATCH] wifi: ath12k: Remove some dead code

Le 25/04/2023 à 14:10, Walter Harms a écrit :
> Does  mcs = ATH12K_HE_MCS_MAX make sense ?
> 

Based on [1], I would say yes, WMI_RATE_PREAMBLE_HE (i.e. 11) looks like 
a valid value.

CJ

[1]: https://www.7signal.com/info/mcs

> re,
>   wh
> ________________________________________
> Von: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> Gesendet: Dienstag, 25. April 2023 13:57:19
> An: Kalle Valo; David S. Miller; Eric Dumazet; Jakub Kicinski; Paolo Abeni
> Cc: linux-kernel@...r.kernel.org; kernel-janitors@...r.kernel.org; Christophe JAILLET; ath12k@...ts.infradead.org; linux-wireless@...r.kernel.org; netdev@...r.kernel.org
> Betreff: [PATCH] wifi: ath12k: Remove some dead code
> 
> ATH12K_HE_MCS_MAX = 11, so this test and the following one are the same.
> Remove the one with the hard coded 11 value.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
>   drivers/net/wireless/ath/ath12k/dp_rx.c | 5 -----
>   1 file changed, 5 deletions(-)
> 
> diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c
> index e78478a5b978..79386562562f 100644
> --- a/drivers/net/wireless/ath/ath12k/dp_rx.c
> +++ b/drivers/net/wireless/ath/ath12k/dp_rx.c
> @@ -1362,11 +1362,6 @@ ath12k_update_per_peer_tx_stats(struct ath12k *ar,
>           * Firmware rate's control to be skipped for this?
>           */
> 
> -       if (flags == WMI_RATE_PREAMBLE_HE && mcs > 11) {
> -               ath12k_warn(ab, "Invalid HE mcs %d peer stats",  mcs);
> -               return;
> -       }
> -
>          if (flags == WMI_RATE_PREAMBLE_HE && mcs > ATH12K_HE_MCS_MAX) {
>                  ath12k_warn(ab, "Invalid HE mcs %d peer stats",  mcs);
>                  return;
> --
> 2.34.1
> 
>