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SubjectRe: [PATCH] arp: Remove the arp_hh_ops structure
Thank you for the clarification.

On Tue, Feb 23, 2021 at 12:07 AM David Ahern <dsahern@gmail.com> wrote:
>
> On 2/22/21 1:37 AM, Eric Dumazet wrote:
> >
> >
> > On 2/22/21 4:15 AM, Yejune Deng wrote:
> >> The arp_hh_ops structure is similar to the arp_generic_ops structure.
> >> but the latter is more general,so remove the arp_hh_ops structure.
> >>
> >> Fix when took out the neigh->ops assignment:
> >> 8.973653] #PF: supervisor read access in kernel mode
> >> [ 8.975027] #PF: error_code(0x0000) - not-present page
> >> [ 8.976310] PGD 0 P4D 0
> >> [ 8.977036] Oops: 0000 [#1] SMP PTI
> >> [ 8.977973] CPU: 1 PID: 210 Comm: sd-resolve Not tainted 5.11.0-rc7-02046-g4591591ab715 #1
> >> [ 8.979998] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
> >> [ 8.981996] RIP: 0010:neigh_probe (kbuild/src/consumer/net/core/neighbour.c:1009)
> >>
> >
> > I have a hard time understanding this patch submission.
> >
> > This seems a mix of a net-next and net material ?
>
> It is net-next at best.
>
> >
> >
> >
> >> Reported-by: kernel test robot <oliver.sang@intel.com>
> >
> > If this is a bug fix, we want a Fixes: tag
> >
> > This will really help us. Please don't let us guess what is going on.
> >
>
> This patch is a v2. v1 was clearly wrong and not tested; I responded as
> such 12 hours before the robot test.

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