netdev - Re: [PATCH 4/5] mac80211: Add more ethtools stats: survey, rates, etc

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Message-ID: <4F871756.80002@computer.org>
Date:	Thu, 12 Apr 2012 19:56:38 +0200
From:	Jan Ceuleers <jan.ceuleers@...puter.org>
To:	Ben Greear <greearb@...delatech.com>
CC:	Florian Fainelli <florian@...nwrt.org>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 4/5] mac80211: Add more ethtools stats: survey, rates,
 etc

Ben Greear wrote:
> Ethtool stats only supports u64. I think it's easy enough for
> humans or programs to add the negative sign. Can signal or noise
> ever be > 0? If so, that could actually break something that depends
> on flipping the value to negative....

The unit of these quantities is dBm, right? So if the {signal|noise} is 
greater than 1mW the corresponding value in dBm would be positive.

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