linux-kernel - Re: [PATCH -next] ia64/sn: fix percpu warnings

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <4AE85D28.90809@kernel.org>
Date:	Wed, 28 Oct 2009 16:03:04 +0100
From:	Tejun Heo <tj@...nel.org>
To:	"Luck, Tony" <tony.luck@...el.com>
CC:	Randy Dunlap <randy.dunlap@...cle.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Jes Sorensen <jes@....com>,
	"linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	akpm <akpm@...ux-foundation.org>
Subject: Re: [PATCH -next] ia64/sn: fix percpu warnings

Hello,

Luck, Tony wrote:
>> WARNING: "per_cpu____sn_cnodeid_to_nasid" [drivers/misc/sgi-xp/xpc.ko] has no CRC!
> 
> Note that this warning goes away if I fix the mismatch declaration so
> that we have:
> 
> DECLARE_PER_CPU(short, __sn_cnodeide_to_nasid[MAX_COMPACT_NODES]);
> in arch.h
> 
> and
> 
> DEFINE_PER_CPU(short, __sn_cnodeide_to_nasid[MAX_COMPACT_NODES]);
> in setup.c

Umm... the correct correct declaration and definition would be

DECLARE_PER_CPU(short [MAX_COMPACT_NODES], __sn_cnodeide_to_nasid);

and

DEFINE_PER_CPU(short [MAX_COMPACT_NODES], __sn_cnodeide_to_nasid);

So that the first part contains full type.  Doing it the other way
might cause problems if the __weak trick is turned on.

Thanks.

-- 
tejun
--
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/