linux-kernel - Re: [PATCH 2/9] scripts/modpost: add a exception for USB gadget drivers

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: <20120816130344.GD26408@arwen.pp.htv.fi>
Date:	Thu, 16 Aug 2012 16:03:46 +0300
From:	Felipe Balbi <balbi@...com>
To:	"ABRAHAM, KISHON VIJAY" <kishon@...com>
Cc:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Felipe Balbi <balbi@...com>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/9] scripts/modpost: add a exception for USB gadget
 drivers

On Thu, Aug 16, 2012 at 06:35:07PM +0530, ABRAHAM, KISHON VIJAY wrote:
> Hi Sebastian,
> 
> On Thu, Aug 16, 2012 at 1:29 AM, Sebastian Andrzej Siewior
> <bigeasy@...utronix.de> wrote:
> > The "driver" struct for a gadget driver is named *_driver. On module
> > load, the gadget expects a UDC driver to be loaded and avaiable. If this
> > is not the case => -ENODEV and bye bye. That means that the gadget
> Will this be taken care of in your future series (with configfs?).
> There might be cases when your gadget driver gets loaded before the
> UDC driver.

with configfs that won't be a problem because even though function
drivers are loaded, they won't bind to any controller until we tell them
to through configfs. IOW, functions will only bind to UDCs after we
assign them to a particular usb interface through configfs.

-- 
balbi

Download attachment "signature.asc" of type "application/pgp-signature" (837 bytes)