linux-kernel - Re: [PATCH 1/1] rtlwifi: remove superfluous condition

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Message-ID: <4e6de16f-b42c-920a-60a2-fcc88e282dc0@lwfinger.net>
Date:	Sun, 31 Jul 2016 09:14:40 -0500
From:	Larry Finger <Larry.Finger@...inger.net>
To:	Heinrich Schuchardt <xypron.glpk@....de>,
	Chaoming Li <chaoming_li@...lsil.com.cn>,
	Kalle Valo <kvalo@...eaurora.org>
Cc:	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] rtlwifi: remove superfluous condition

On 07/31/2016 05:30 AM, Heinrich Schuchardt wrote:
> If sta == NULL, the changed line will not be reached.
> So no need to check if stat == NULL here.
>
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@....de>
> ---
>  drivers/net/wireless/realtek/rtlwifi/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

I agree. If sta were NULL, we would never have reached this statement. There is, 
however, a typo in the last line of the commit message. Once this is fixed, you 
may add the line "Acked-by: Larry Finger <Larry.Finger@...inger.net>"

Thanks,

Larry

>
> diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
> index 41f77f8..7aee5ebb1 100644
> --- a/drivers/net/wireless/realtek/rtlwifi/core.c
> +++ b/drivers/net/wireless/realtek/rtlwifi/core.c
> @@ -1135,7 +1135,7 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
>  					mac->mode = WIRELESS_MODE_AC_24G;
>  			}
>
> -			if (vif->type == NL80211_IFTYPE_STATION && sta)
> +			if (vif->type == NL80211_IFTYPE_STATION)
>  				rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0);
>  			rcu_read_unlock();
>
>