netdev - Re: [net-next] i40iw/i40e: Remove link dependency on i40e

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: <079ceee3bc8cd0ea50dd7ddc12b27512ca5ac49e.camel@intel.com>
Date:   Tue, 22 May 2018 14:04:06 -0700
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     Jason Gunthorpe <jgg@...lanox.com>
Cc:     davem@...emloft.net, dledford@...hat.com,
        Sindhu Devale <sindhu.devale@...el.com>,
        netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com,
        Shiraz Saleem <shiraz.saleem@...el.com>
Subject: Re: [net-next] i40iw/i40e: Remove link dependency on i40e

On Tue, 2018-05-22 at 14:56 -0600, Jason Gunthorpe wrote:
> On Tue, May 22, 2018 at 01:38:31PM -0700, Jeff Kirsher wrote:
> > From: Sindhu Devale <sindhu.devale@...el.com>
> > 
> > Currently i40iw is dependent on i40e symbols
> > i40e_register_client and i40e_unregister_client due to
> > which i40iw cannot be loaded without i40e being loaded.
> > 
> > This patch allows RDMA driver to build and load without
> > linking to LAN driver and without LAN driver being loaded
> > first. Once the LAN driver is loaded, the RDMA driver
> > is notified through the netdevice notifiers to register
> > as client to the LAN driver. Add function pointers to IDC
> > register/unregister in the private VSI structure. This
> > allows a RDMA driver to build without linking to i40e.
> 
> Why would you want to do this? The rdma driver is non-functional
> without the ethernet driver, so why on earth would we want to defeat
> the module dependency mechanism?

This change is driven by the OSV's like Red Hat, where customer's were
updating the i40e driver, which in turn broke i40iw.
Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)