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Date:   Tue, 8 Sep 2020 09:29:52 -0600
From:   David Ahern <>
To:     Ido Schimmel <>,
Cc:,,,, Ido Schimmel <>
Subject: Re: [RFC PATCH net-next 14/22] nexthop: Emit a notification when a
 nexthop group is modified

On 9/8/20 3:10 AM, Ido Schimmel wrote:
> From: Ido Schimmel <>
> When a single nexthop is replaced, the configuration of all the groups
> using the nexthop is effectively modified. In this case, emit a
> notification in the nexthop notification chain for each modified group
> so that listeners would not need to keep track of which nexthops are
> member in which groups.
> The notification can only be emitted after the new configuration (i.e.,
> 'struct nh_info') is pointed at by the old shell (i.e., 'struct
> nexthop'). Before that the configuration of the nexthop groups is still
> the same as before the replacement.
> Signed-off-by: Ido Schimmel <>
> ---
>  net/ipv4/nexthop.c | 32 ++++++++++++++++++++++++++++++--
>  1 file changed, 30 insertions(+), 2 deletions(-)

Reviewed-by: David Ahern <>

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