netdev - Re: [net-next 10/14] ixgbevf: make sure probe fails on MSI-X enable error

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Date:	Fri, 26 Oct 2012 09:32:21 -0700
From:	Greg Rose <gregory.v.rose@...el.com>
To:	"Kicinski, Jakub" <jakub.kicinski@...el.com>
CC:	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"gospo@...hat.com" <gospo@...hat.com>,
	"sassmann@...hat.com" <sassmann@...hat.com>
Subject: Re: [net-next 10/14] ixgbevf: make sure probe fails on MSI-X enable
 error

On Fri, 26 Oct 2012 12:43:12 +0000
"Kicinski, Jakub" <jakub.kicinski@...el.com> wrote:

> > From: Jakub Kicinski <jakub.kicinski@...el.com>
> > 
> > This driver cannot work without MSI-X interrupts so there is no
> > mechanism to fall back to.
> > 
> > Signed-off-by: Jakub Kicinski <jakub.kicinski@...el.com>
> > Acked-by: Greg Rose <gregory.v.rose@...el.com>
> > Tested-by: Sibai Li <sibai.li@...el.com>
> > Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
> > ---
> >  drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 24
> > +++++++++++------------ 1 file changed, 11 insertions(+), 13
> > deletions(-)
> > 
> > diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
> > b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
> > index b5979ba..7ceccff 100644
> > --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
> > +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
> [...]
> > @@ -1858,7 +1856,7 @@ static int
> > ixgbevf_set_interrupt_capability(struct ixgbevf_adapter *adapter)
> >  	for (vector = 0; vector < v_budget; vector++)
> >  		adapter->msix_entries[vector].entry = vector;
> > 
> > -	ixgbevf_acquire_msix_vectors(adapter, v_budget);
> > +	err = ixgbevf_acquire_msix_vectors(adapter, v_budget);
> > 
> >  	err = netif_set_real_num_tx_queues(netdev,
> > adapter->num_tx_queues); if (err)
> 
> This is clearly wrong. My change was overtaken by:
> 
> commit 91e2b89b04d3f568dc4ec99f242a4a742061e399
> Author: Greg Rose <gregory.v.rose@...el.com>
> Date:   Wed Oct 3 00:57:23 2012 +0000
> 
>     ixgbevf: Set the netdev number of Tx queues
> 
> Please drop this patch, I'll resend a fixed version to Greg.

Yikes!  Yeah, that patch got munged somehow.  Thanks!

- Greg

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