linux-kernel - RE: [linux-nics] [PATCH] e1000: remove unused variables

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:	Mon, 1 Dec 2014 18:56:46 +0000
From:	"Fujinaka, Todd" <todd.fujinaka@...el.com>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	Ben Hutchings <ben@...adent.org.uk>
CC:	Linux NICS <Linux-nics@...tope.jf.intel.com>,
	"e1000-devel@...ts.sourceforge.net" 
	<e1000-devel@...ts.sourceforge.net>,
	Hisashi T Fujinaka <htodd@...fifty.com>,
	"Vick, Matthew" <matthew.vick@...el.com>,
	"Greg@...tope.jf.intel.com" <Greg@...tope.jf.intel.com>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"Wyborny, Carolyn" <carolyn.wyborny@...el.com>,
	"John@...tope.jf.intel.com" <John@...tope.jf.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [linux-nics] [PATCH] e1000: remove unused variables

After discussing this locally, I'd like to NAK it because this could cause regressions to parts that are still in use but we don't have access to. Also, the assignment was necessary in the past for some versions of gcc and since this may be used in embedded systems using older compilers, we should leave it be.

Thanks.

Todd Fujinaka
Software Application Engineer
Networking Division (ND)
Intel Corporation
todd.fujinaka@...el.com
(503) 712-4565

-----Original Message-----
From: linux-nics-bounces@...tope.jf.intel.com [mailto:linux-nics-bounces@...tope.jf.intel.com] On Behalf Of Sudip Mukherjee
Sent: Sunday, November 30, 2014 8:55 PM
To: Ben Hutchings
Cc: Linux NICS; e1000-devel@...ts.sourceforge.net; Hisashi T Fujinaka; Vick, Matthew; Greg@...tope.jf.intel.com; Kirsher, Jeffrey T; netdev@...r.kernel.org; Wyborny, Carolyn; John@...tope.jf.intel.com; linux-kernel@...r.kernel.org
Subject: Re: [linux-nics] [PATCH] e1000: remove unused variables

On Sun, Nov 30, 2014 at 01:45:13AM +0000, Ben Hutchings wrote:
> On Wed, 2014-11-26 at 21:59 -0800, Hisashi T Fujinaka wrote:
> > I'm pretty sure those double reads are there for a reason, so most 
> > of this I'm going to have to check on Monday. We have a long holiday 
> > weekend here in the US.
> [...]
> 
> If there were double register reads being replaced with single 
> register reads, I'd agree this was likely to introduce a regression.  
> But all I see is var = er32(REG) being changed to er32(REG).

no, double register reads are not modified. only the unused variables are removed.

thanks
sudip

> 
> Ben.
> 
> --
> Ben Hutchings
> The world is coming to an end.	Please log off.


_______________________________________________
Linux-nics mailing list
Linux-nics@...el.com
--
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/