netdev - Re: [PATCH 0/3] remove irq_sem cruft from e1000 and derivatives

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: <45DA4992.2070103@intel.com>
Date:	Mon, 19 Feb 2007 17:06:26 -0800
From:	Auke Kok <auke-jan.h.kok@...el.com>
To:	Chris Snook <csnook@...hat.com>
CC:	jeff@...zik.org, jacliburn@...lsouth.net, john.ronciak@...el.com,
	jesse.brandeburg@...el.com, netdev@...r.kernel.org
Subject: Re: [PATCH 0/3] remove irq_sem cruft from e1000 and derivatives

Chris Snook wrote:
> Hey folks --
> 
>      While digging through the atl1 source, I was troubled by the code using
> irq_sem.  I did some digging and found the same code in e1000 and ixgb.  I'm
> not entirely sure what it was originally intended to do, but it doesn't seem
> to be doing anything useful now, except possibly locking interrupts off if
> NAPI is flipped on and off enough times to cause an integer overflow.
> 
>      The following patches completely remove irq_sem from each of the drivers.
>  This has been tested successfully on atl1 and e1000.  If someone would like
> to send me ixgb hardware I'd be glad to test that, otherwise you'll have to
> test it yourself. :)
> 
>      -- Chris


I'm not yet seeing patches 1/3 appear, but I'll certainly take a look at them 
and have them tested in our labs once they appear for e1000 and ixgb.

Cheers,

Auke
-
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