linux-kernel - RE: [PATCH] bnx2x: Fix enabling network interfaces without VFs

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Date:   Mon, 13 Sep 2021 11:18:33 +0000
From:   Shai Malin <smalin@...vell.com>
To:     Adrian Bunk <bunk@...nel.org>
CC:     Ariel Elior <aelior@...vell.com>,
        Sudarsana Reddy Kalluru <skalluru@...vell.com>,
        GR-everest-linux-l2 <GR-everest-linux-l2@...vell.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] bnx2x: Fix enabling network interfaces without VFs


On 9/12/2021 at 1:42PM, Adrian Bunk Wrote:
> On Mon, Sep 13, 2021 at 08:14:33AM +0000, Shai Malin wrote:
> > On 9/12/2021 at 10:08PM, Adrian Bunk Wrote:
> > > This function is called to enable SR-IOV when available,
> > > not enabling interfaces without VFs was a regression.
> > >
> > > Fixes: 65161c35554f ("bnx2x: Fix missing error code in bnx2x_iov_init_one()")
> > > Signed-off-by: Adrian Bunk <bunk@...nel.org>
> > > Reported-by: YunQiang Su <wzssyqa@...il.com>
> > > Tested-by: YunQiang Su <wzssyqa@...il.com>
> > > Cc: stable@...r.kernel.org
> > > ---
> > >  drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> > > b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> > > index f255fd0b16db..6fbf735fca31 100644
> > > --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> > > +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
> > > @@ -1224,7 +1224,7 @@ int bnx2x_iov_init_one(struct bnx2x *bp, int
> > > int_mode_param,
> > >
> > >  	/* SR-IOV capability was enabled but there are no VFs*/
> > >  	if (iov->total == 0) {
> > > -		err = -EINVAL;
> > > +		err = 0;
> > >  		goto failed;
> > >  	}
> >
> > Thanks for reporting this issue!
> > But the complete fix should also not use "goto failed".
> > Instead, please create a new "goto skip_vfs" so it will skip
> > the log of "Failed err=".
> 
> Is this really desirable?
> It is a debug print not enabled by default,
> and trying to enable SR-IOV did fail.

I agree.

Acked-by: Shai Malin <smalin@...vell.com>

> 
> cu
> Adrian