linux-kernel - Re: [PATCH v2] net: wireless: rtlwifi: rtl8192de: hw.c: Cleaning up if statement that always evaluates to false

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Message-ID: <1721891.8jxoA0ODQg@al>
Date:	Sat, 21 Jun 2014 23:35:58 +0200
From:	Peter Wu <peter@...ensteyn.nl>
To:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
Cc:	Larry Finger <Larry.Finger@...inger.net>,
	Chaoming Li <chaoming_li@...lsil.com.cn>,
	"John W. Linville" <linville@...driver.com>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: wireless: rtlwifi: rtl8192de: hw.c:  Cleaning up if statement that always evaluates to false

On Saturday 21 June 2014 23:03:42 Rickard Strandqvist wrote:
> I found a logical error in an if statement that always evaluates to false.
> 
> This has after same discussion resulted in that we add a macro to handle this.

See other mail, this subject and commit message still suck. The change itself
is fine.

Don't forget those other drivers. You are aware that the *e drivers are for PCI(e)
devices, and *u for USB right?

Kind regards,
Peter

> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
> ---
>  drivers/net/wireless/rtlwifi/rtl8192de/hw.c  |    2 +-
>  drivers/net/wireless/rtlwifi/rtl8192de/reg.h |    1 +
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/hw.c b/drivers/net/wireless/rtlwifi/rtl8192de/hw.c
> index 2b08671..280c3da 100644
> --- a/drivers/net/wireless/rtlwifi/rtl8192de/hw.c
> +++ b/drivers/net/wireless/rtlwifi/rtl8192de/hw.c
> @@ -1128,7 +1128,7 @@ static int _rtl92de_set_media_status(struct ieee80211_hw *hw,
>  	}
>  	rtl_write_byte(rtlpriv, REG_CR + 2, bt_msr);
>  	rtlpriv->cfg->ops->led_control(hw, ledaction);
> -	if ((bt_msr & 0xfc) == MSR_AP)
> +	if ((bt_msr & MSR_MASK) == MSR_AP)
>  		rtl_write_byte(rtlpriv, REG_BCNTCFG + 1, 0x00);
>  	else
>  		rtl_write_byte(rtlpriv, REG_BCNTCFG + 1, 0x66);
> diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/reg.h b/drivers/net/wireless/rtlwifi/rtl8192de/reg.h
> index 7f29b8d..315a298 100644
> --- a/drivers/net/wireless/rtlwifi/rtl8192de/reg.h
> +++ b/drivers/net/wireless/rtlwifi/rtl8192de/reg.h
> @@ -369,6 +369,7 @@
>  #define	MSR_ADHOC			0x01
>  #define	MSR_INFRA			0x02
>  #define	MSR_AP				0x03
> +#define	MSR_MASK			0x03
>  
>  /* 6. Adaptive Control Registers  (Offset: 0x0160 - 0x01CF) */
>  /* ----------------------------------------------------- */
> 

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