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  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:	Tue, 22 Apr 2008 10:55:06 +0200
From:	Laurent Pinchart <laurentp@...-semaphore.com>
To:	Scott Wood <scottwood@...escale.com>
Cc:	linuxppc-dev@...abs.org, avorontsov@...mvista.com,
	netdev@...r.kernel.org
Subject: Re: [RFC fs_enet: Convert MII bitbang driver to use GPIO lib

On Monday 21 April 2008 19:56, Scott Wood wrote:
> On Fri, Apr 18, 2008 at 01:34:29PM +0200, Laurent Pinchart wrote:
> > Scott Wood was concerned in 
> > http://patchwork.ozlabs.org/linuxppc/patch?id=17490 that the gpio lib
> > might be an unnecessary burden for memory-constraint platforms. Should we
> > keep two mdio bitbang drivers, one with direct access to the ports and one
> > using gpio lib ? The later solves the concurrent access issues present in
> > the current fs_enet mdio bitbang driber.
> 
> The memory-constrained platform I had in mind was 8xx, which doesn't use
> bitbanged MDIO.  It might nice to keep the gpiolib bit separate to avoid
> situations such as ep8248e where mdiobb would be the only thing requiring
> a gpiolib binding, though -- but it shouldn't be two separate bitbang
> drivers, just the existing bitbang driver plus some glue code that binds
> it to gpiolib.

I would be fine with that if the glue code wasn't 90% of the whole driver. 
There is really little (not to say nothing) that can be shared between the 
two drivers.

-- 
Laurent Pinchart
CSE Semaphore Belgium

Chaussee de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
F +32 (2) 387 42 75

Content of type "application/pgp-signature" skipped

Powered by blists - more mailing lists