netdev - RE: [PATCH 8/8 V2] rtlwifi: Remove variable 'noise' from rtl

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Date:	Tue, 17 Sep 2013 09:48:22 +0100
From:	"David Laight" <David.Laight@...LAB.COM>
To:	"Larry Finger" <Larry.Finger@...inger.net>,
	<linville@...driver.com>
Cc:	<linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>
Subject: RE: [PATCH 8/8 V2] rtlwifi: Remove variable 'noise' from rtl_stats struct

> diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h
> index cc03e7c..284ee8d 100644
> --- a/drivers/net/wireless/rtlwifi/wifi.h
> +++ b/drivers/net/wireless/rtlwifi/wifi.h
> @@ -1535,7 +1535,6 @@ struct rtl_stats {
>  	u32 mac_time[2];
>  	s8 rssi;
>  	u8 signal;
> -	u8 noise;
>  	u8 rate;		/* hw desc rate */
>  	u8 received_channel;
>  	u8 control;
> --

Is 'struct rtl_stats' exposed to userspace?
(or even to loadable drivers)
If so you probably ought to replace 'noise' with an explicit
pad in order to avoid changing the offsets of the other fields.

	David



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