netdev - Re: [PATCH 2/9] ocrdma: Driver for Emulex OneConnect RDMA adapter

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]

Date:	Thu, 22 Mar 2012 16:45:43 -0700
From:	Roland Dreier <roland@...estorage.com>
To:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Cc:	Parav.Pandit@...lex.com, David.Laight@...lab.com,
	linux-rdma@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 2/9] ocrdma: Driver for Emulex OneConnect RDMA adapter

On Thu, Mar 22, 2012 at 3:44 PM, Jason Gunthorpe
<jgunthorpe@...idianresearch.com> wrote:
> For hardware facing structures I'd combine this with a static assert
> to verify structure size at compile time.
>
> So..
>
> 1) Avoid using attributes unless the structure has unaligned members.
> 2) Avoid creating structures with unaligned members (eg for userspace
>   communication)
> 3) Frown at hardware/firmware developers who make communication
>   structures with unaligned members :)
> 4) Be explicit about padding in your layout for 64/32
>   compatibility.

Excellent summary, thanks Jason.

 - R.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html