netdev - Re: [PATCH RESEND net-next 06/16] sfc: Introduce and use MCDI_DECLARE

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: <1377253570.2586.15.camel@deadeye.wl.decadent.org.uk>
Date:	Fri, 23 Aug 2013 11:26:10 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	David Miller <davem@...emloft.net>
CC:	<netdev@...r.kernel.org>, <linux-net-drivers@...arflare.com>
Subject: Re: [PATCH RESEND net-next 06/16] sfc: Introduce and use
 MCDI_DECLARE_BUF macro

On Thu, 2013-08-22 at 22:02 -0700, David Miller wrote:
> From: Ben Hutchings <bhutchings@...arflare.com>
> Date: Thu, 22 Aug 2013 20:26:49 +0100
> 
> > MCDI_DECLARE_BUF declares a variable as an MCDI buffer of the
> > requested length, adding any necessary padding.
> > 
> > Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>
> 
> There really isn't a guarentee that a u8 array is going to
> aligned appropriately to write dwords there using casts like
> you do.

Yes, but this has been wrong for years.

> Since you're here macro'izing the declaration, take the time to fix it
> to specify the necessary alignment as well.
[...]

My intent was to separate refactoring changes with no immediate effect
(#6-9) from functional changes (#10-11), making them easier to review.
The alignment gets fixed by #11.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

--
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