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net: disable BRIDGE_NETFILTER by default 

The description says 'If unsure, say N.' but
the module is built as M by default (once
the dependencies are satisfied).

When the module is selected (Y or M), it enables
NETFILTER_FAMILY_BRIDGE and SKB_EXTENSIONS
which alter kernel internal structures.

We (Android Studio Emulator) currently do not
use this module and think this it is more consistent
to have it disabled by default as opposite to
disabling it explicitly to prevent enabling
NETFILTER_FAMILY_BRIDGE and SKB_EXTENSIONS.

Signed-off-by: Roman Kiryanov <rkir@google.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Roman Kiryanov 2020-02-19 13:40:06 -08:00 committed by David S. Miller
parent ac2fcfa9fd
commit 98bda63e20
1 changed files with 0 additions and 1 deletions
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net/Kconfig
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@ -189,7 +189,6 @@ config BRIDGE_NETFILTER
depends on NETFILTER_ADVANCED
select NETFILTER_FAMILY_BRIDGE
select SKB_EXTENSIONS
default m
---help---
Enabling this option will let arptables resp. iptables see bridged
ARP resp. IP traffic. If you want a bridging firewall, you probably