Messages in this thread Patch in this message | | | From | Sven Eckelmann <> | Subject | [PATCH 2/2] vxlan: Copy needed_tailroom from lowerdev | Date | Thu, 26 Nov 2020 13:52:47 +0100 |
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While vxlan doesn't need any extra tailroom, the lowerdev might need it. In that case, copy it over to reduce the chance for additional (re)allocations in the transmit path.
Signed-off-by: Sven Eckelmann <sven@narfation.org> --- drivers/net/vxlan.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 25b5b5a2dfea..44bb02122526 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -3801,6 +3801,8 @@ static void vxlan_config_apply(struct net_device *dev, needed_headroom = lowerdev->hard_header_len; needed_headroom += lowerdev->needed_headroom; + dev->needed_tailroom = lowerdev->needed_tailroom; + max_mtu = lowerdev->mtu - (use_ipv6 ? VXLAN6_HEADROOM : VXLAN_HEADROOM); if (max_mtu < ETH_MIN_MTU) -- 2.29.2
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