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Date:   Thu, 03 Mar 2022 06:00:11 +0000
To:     Simon Wunderlich <>
Subject: Re: [PATCH 1/3] batman-adv: Request iflink once in batadv-on-batadv check


This series was applied to netdev/net.git (master)
by Simon Wunderlich <>:

On Wed,  2 Mar 2022 17:30:47 +0100 you wrote:
> From: Sven Eckelmann <>
> There is no need to call dev_get_iflink multiple times for the same
> net_device in batadv_is_on_batman_iface. And since some of the
> .ndo_get_iflink callbacks are dynamic (for example via RCUs like in
> vxcan_get_iflink), it could easily happen that the returned values are not
> stable. The pre-checks before __dev_get_by_index are then of course bogus.
> [...]

Here is the summary with links:
  - [1/3] batman-adv: Request iflink once in batadv-on-batadv check
  - [2/3] batman-adv: Request iflink once in batadv_get_real_netdevice
  - [3/3] batman-adv: Don't expect inter-netns unique iflink indices

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