linux-kernel - Re: [PATCH] macsec: fix crypto Kconfig dependency

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Message-ID: <20160419074455.10a96986@canb.auug.org.au>
Date:	Tue, 19 Apr 2016 07:44:55 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	herbert@...dor.apana.org.au, arnd@...db.de, sd@...asysnail.net,
	hannes@...essinduktion.org, johannes@...solutions.net,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] macsec: fix crypto Kconfig dependency

Hi Dave,

On Mon, 18 Apr 2016 12:43:16 -0400 (EDT) David Miller <davem@...emloft.net> wrote:
>
> From: Herbert Xu <herbert@...dor.apana.org.au>
> Date: Mon, 18 Apr 2016 18:43:36 +0800
> 
> > Right, the problem is that nothing within crypto ever selects
> > CRYPTO since it's also used as a way of hiding the crypto menu
> > options.  
> 
> As far as I understand it, this won't help.  Because selects do not
> trigger other selects and dependencies.

My understanding is that selects trigger other selects, but do not
honour dependencies.  So, in general, you should not select a symbol
that has dependencies (unless you also have the same dependencies or
select those dependencies).

-- 
Cheers,
Stephen Rothwell