netdev - Re: any reason for "!!netif_carrier_ok" and "!!netif

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Message-Id: <20180827.090424.977658416500279863.davem@davemloft.net>
Date:   Mon, 27 Aug 2018 09:04:24 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     rpjday@...shcourse.ca
Cc:     netdev@...r.kernel.org
Subject: Re: any reason for "!!netif_carrier_ok" and "!!netif_dormant" in
 net-sysfs.c?

From: "Robert P. J. Day" <rpjday@...shcourse.ca>
Date: Mon, 27 Aug 2018 04:55:29 -0400 (EDT)

>   another pedantic oddity -- is there a reason for these two double
> negations in net/core/net-sysfs.c?

It turns an arbitrary integer into a boolean, this is a common
construct across the kernel tree so I'm surprised you've never seen
it before.

Although, I don't know how much more hand holding we're willing to
tolerate continuing to give to you at this point.

Thanks.