netdev - Re: linux-next: boot test failure (net tree)

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Date:	Wed, 17 Aug 2011 22:40:59 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	David Miller <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Michael Neuling <mikey@...ling.org>,
	Linus <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: linux-next: boot test failure (net tree)

On Wed, 2011-08-17 at 22:22 -0700, Stephen Rothwell wrote:
> Hi Dave,
> 
> On Wed, 17 Aug 2011 10:50:02 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > On Tue, 16 Aug 2011 17:15:25 -0700 (PDT) David Miller <davem@...emloft.net> wrote:
> > >
> > > From: Stephen Rothwell <sfr@...b.auug.org.au>
> > > Date: Wed, 17 Aug 2011 10:01:46 +1000
> > > 
> > > > In particular, CONFIG_TIGON3 newly depends on
> > > > CONFIG_NET_VENDOR_BROADCOM which will no be selected when doing a
> > > > "make oldconfig" from a working config.
> > > 
> > > When you type "make oldconfig" with an existing .config it prompts you
> > > for those vendor guards, giving you ample opportunity to say yes to
> > > them.
> > 
> > Which is a bit of a pain for automated systems.  Ours does (essentially):
> > 
> > yes '' | make oldconfig
> > 
> > We really don't want to select every new config item that comes along.
> 
> So, Mikey did a test for me (he was bitten by this today).  Just one of
> the powerpc configs (pseries_defconfig which should, in theory, build a
> kernel that will boot on almost all our POWER server machines) loses all
> these drivers if you do a "make pseries_defconfig":
> 
>  -CONFIG_IBMVETH=y
>  -CONFIG_PCNET32=y
>  -CONFIG_E100=y
>  -CONFIG_ACENIC=m
>  -CONFIG_ACENIC_OMIT_TIGON_I=y
>  -CONFIG_E1000=y
>  -CONFIG_E1000E=y
>  -CONFIG_BNX2=m
>  -CONFIG_CHELSIO_T3=m
>  -CONFIG_CHELSIO_T4=m
>  -CONFIG_IXGBE=m
>  -CONFIG_IXGB=m
>  -CONFIG_S2IO=m
>  -CONFIG_MYRI10GE=m
>  -CONFIG_NETXEN_NIC=m
>  -CONFIG_QLGE=m
>  -CONFIG_BE2NET=m
> 
> That is just one of our deconfigs ... there are over 400 defconfigs in
> the kernel and a lot of them will need to be updated.
> 
> Mikey asks:  Will Dave take these updates if we get Acks from the
> maintainers?  :-)
> 

I am open to the idea.  I considered updating the the defconfig's, but
was not sure was the best way of doing the changes.  I was not sure
making these changes in Dave's net-next tree would not upset the arch
maintainer's, especially if there is a better tree(s) for the changes.

I am in the finishing up the patches for drivers/net/ {FDDI, PPP, SLIP,
HIPPI, etc.) and since I started this change, I would sign-up for making
the defconfig changes if that helps.

Cheers,
Jeff

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