linux-kernel - Re: [PATCH] net: wireless/broadcom: fix possible condition with no effect

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Date:   Sun, 26 Jun 2022 13:03:57 +0200
From:   Sebastian Gottschall <s.gottschall@...media-net.de>
To:     Praghadeesh T K S <praghadeeshthevendria@...il.com>,
        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>,
        linux-wireless@...r.kernel.org, b43-dev@...ts.infradead.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     praghadeeshtks@...omail.in, skhan@...uxfoundation.org
Subject: Re: [PATCH] net: wireless/broadcom: fix possible condition with no
 effect

Am 25.06.2022 um 21:29 schrieb Praghadeesh T K S:
> Fix a coccinelle warning by removing condition with no possible effect
>
> Signed-off-by: Praghadeesh T K S <praghadeeshthevendria@...il.com>
> ---
>   drivers/net/wireless/broadcom/b43/xmit.c | 7 +------
>   1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/drivers/net/wireless/broadcom/b43/xmit.c b/drivers/net/wireless/broadcom/b43/xmit.c
> index 7651b1b..667a74b 100644
> --- a/drivers/net/wireless/broadcom/b43/xmit.c
> +++ b/drivers/net/wireless/broadcom/b43/xmit.c
> @@ -169,12 +169,7 @@ static u16 b43_generate_tx_phy_ctl1(struct b43_wldev *dev, u8 bitrate)
>   	const struct b43_phy *phy = &dev->phy;
>   	const struct b43_tx_legacy_rate_phy_ctl_entry *e;
>   	u16 control = 0;
> -	u16 bw;
> -
> -	if (phy->type == B43_PHYTYPE_LP)
> -		bw = B43_TXH_PHY1_BW_20;
> -	else /* FIXME */
> -		bw = B43_TXH_PHY1_BW_20;
> +	u16 bw = B43_TXH_PHY1_BW_20;
Can you check if this is a possible register typo?
>   
>   	if (0) { /* FIXME: MIMO */
>   	} else if (b43_is_cck_rate(bitrate) && phy->type != B43_PHYTYPE_LP) {