mal_probe crash

[Herbert Xu]

On Fri, Jan 09, 2009 at 03:42:25PM +0100, Geert Uytterhoeven wrote:
> On Thu, 8 Jan 2009, Benjamin Herrenschmidt wrote:
>
> > There isn't that I know of. The EMAC code creates a single NAPI instance
> > for all EMACs and I think used to completely disconnect things. The old
> > code created a fake netdev just for NAPI, that became unnecessary with
> > the new NAPI stuff.... but it looks like the way we do things now
> > displeases some changes in the network stack. I'll have to dig.
> 
> Verified on my Sequoia (which now lost its network :-(
> 
> The regression/problem (requiring a valid net_device in netif_napi_add(), even
> if CONFIG_NETPOLL=n) seems to be introduced by commit
> d565b0a1a9b6ee7dff46e1f68b26b526ac11ae50 ("net: Add Generic Receive Offload
> infrastructure").

Yes EMAC just needs to go back to the old fake dev setup.

Cheers,
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