linux-kernel - Re: [Intel-wired-lan] [PATCH 1/2] ixgbe: Explicitly initialize reference count to 0

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Message-ID: <CAKgT0UcDz_NDnft5YsZY3c_0vJABXzmZUDk0W4XKx82dJtSh9A@mail.gmail.com>
Date:   Mon, 5 Aug 2019 15:03:57 -0700
From:   Alexander Duyck <alexander.duyck@...il.com>
To:     "Bowers, AndrewX" <andrewx.bowers@...el.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
Subject: Re: [Intel-wired-lan] [PATCH 1/2] ixgbe: Explicitly initialize
 reference count to 0

On Mon, Aug 5, 2019 at 2:42 PM Bowers, AndrewX <andrewx.bowers@...el.com> wrote:
>
> > -----Original Message-----
> > From: Intel-wired-lan [mailto:intel-wired-lan-bounces@...osl.org] On
> > Behalf Of Chuhong Yuan
> > Sent: Friday, August 2, 2019 3:55 AM
> > Cc: netdev@...r.kernel.org; Chuhong Yuan <hslester96@...il.com>; linux-
> > kernel@...r.kernel.org; intel-wired-lan@...ts.osuosl.org; David S . Miller
> > <davem@...emloft.net>
> > Subject: [Intel-wired-lan] [PATCH 1/2] ixgbe: Explicitly initialize reference
> > count to 0
> >
> > The driver does not explicitly call atomic_set to initialize refcount to 0.
> > Add the call so that it will be more straight forward to convert refcount from
> > atomic_t to refcount_t.
> >
> > Signed-off-by: Chuhong Yuan <hslester96@...il.com>
> > ---
> >  drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 1 +
> >  1 file changed, 1 insertion(+)
>
> Tested-by: Andrew Bowers <andrewx.bowers@...el.com>

NAK. This patch is badly broken. We should not be resetting the fcoe
refcnt in ixgbe_setup_fcoe_ddp_resources.