linux-kernel - Re: [PATCH 1/3] vxlan: silence one build warning

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] [day] [month] [year] [list]

Date:	Mon, 28 Oct 2013 08:25:11 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	David Miller <davem@...emloft.net>
Cc:	zwu.kernel@...il.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, wuzhy@...ux.vnet.ibm.com
Subject: Re: [PATCH 1/3] vxlan: silence one build warning

On Mon, 28 Oct 2013 00:38:07 -0400 (EDT)
David Miller <davem@...emloft.net> wrote:

> From: Stephen Hemminger <stephen@...workplumber.org>
> Date: Fri, 25 Oct 2013 08:41:34 -0700
> 
> > I would rather not fix the warning this way since it risks masking
> > later bugs if this code ever changes.
> 
> But this is suboptimally coded, and is asking for the warning.
> 
> Anything returning a pointer by reference is asking for trouble
> in my opinion.
> 
> The correct thing to do is to make create_v{4,6}_sock() return
> the "struct socket *" as an error pointer.
> 
> No more ambiguous initializations, no more warnings.

Agreed, original code used ERR_PTR (see vxlan_socket_create),
the side effect stuff only came with the addition of IPv6.
--
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/