linux-kernel - Re: [PATCH] mm: add config NUMA stub to all architectures

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20120217123037.ecfc5dd9.akpm@linux-foundation.org>
Date:	Fri, 17 Feb 2012 12:30:37 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Konstantin Khlebnikov <khlebnikov@...nvz.org>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: [PATCH] mm: add config NUMA stub to all architectures

On Fri, 17 Feb 2012 16:08:15 +0400
Konstantin Khlebnikov <khlebnikov@...nvz.org> wrote:

> Config NUMA must be defined for all architectures,
> otherwise IS_ENABLED(CONFIG_NUMA) does not work.
> Some arch-specific Kconfig already has this stub.
> This patch adds it to all remaining.

It would be better to teach IS_ENABLED() to handle this situation.  I
don't think there's a way of doing this with cpp :(

This limitation makes IS_ENABLED pretty dangerous, doesn't it?  It
makes it very easy to introduce build breakage with unexpected Kconfig
combinations.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/