linux-kernel - Re: [PATCH 1/4] mac80211: Fix likely misuse of

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Date:	Wed, 30 May 2012 13:29:42 -0700
From:	Ben Greear <greearb@...delatech.com>
To:	Joe Perches <joe@...ches.com>
CC:	"John W. Linville" <linville@...driver.com>,
	Johannes Berg <johannes@...solutions.net>,
	"David S. Miller" <davem@...emloft.net>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] mac80211: Fix likely misuse of | for &

On 05/30/2012 01:25 PM, Joe Perches wrote:
> Using | with a constant is always true.
> Likely this should have be&.

Yes, I think your change is correct.  Looks like something
a compiler or static analysis tool could catch and warn about...

Sorry for the bug!

Ben

>
> cc: Ben Greear<greearb@...delatech.com>
> Signed-off-by: Joe Perches<joe@...ches.com>
> ---
>   net/mac80211/cfg.c |    6 +++---
>   1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
> index 495831e..e9cecca 100644
> --- a/net/mac80211/cfg.c
> +++ b/net/mac80211/cfg.c
> @@ -533,16 +533,16 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy,
>   		sinfo.filled = 0;
>   		sta_set_sinfo(sta,&sinfo);
>
> -		if (sinfo.filled | STATION_INFO_TX_BITRATE)
> +		if (sinfo.filled&  STATION_INFO_TX_BITRATE)
>   			data[i] = 100000 *
>   				cfg80211_calculate_bitrate(&sinfo.txrate);
>   		i++;
> -		if (sinfo.filled | STATION_INFO_RX_BITRATE)
> +		if (sinfo.filled&  STATION_INFO_RX_BITRATE)
>   			data[i] = 100000 *
>   				cfg80211_calculate_bitrate(&sinfo.rxrate);
>   		i++;
>
> -		if (sinfo.filled | STATION_INFO_SIGNAL_AVG)
> +		if (sinfo.filled&  STATION_INFO_SIGNAL_AVG)
>   			data[i] = (u8)sinfo.signal_avg;
>   		i++;
>   	} else {


-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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