mirror of
https://github.com/torvalds/linux.git
synced 2026-05-12 16:18:45 +02:00
309b905dee
Maintaining a modular IPv6 stack offers image size savings for specific setups, this benefit is outweighed by the architectural burden it imposes on the subsystems on implementation and maintenance. Therefore, drop it. Change CONFIG_IPV6 from tristate to bool. Remove all Kconfig dependencies across the tree that explicitly checked for IPV6=m. In addition, remove MODULE_DESCRIPTION(), MODULE_ALIAS(), MODULE_AUTHOR() and MODULE_LICENSE(). This is also replacing module_init() by device_initcall(). It is not possible to use fs_initcall() as IPv4 does because that creates a race condition on IPv6 addrconf. Finally, modify the default configs from CONFIG_IPV6=m to CONFIG_IPV6=y except for m68k as according to the bloat-o-meter the image is increasing by 330KB~ and that isn't acceptable. Instead, disable IPv6 on this architecture by default. This is aligned with m68k RAM requirements and recommendations [1]. [1] http://www.linux-m68k.org/faq/ram.html Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de> Tested-by: Ricardo B. Marlière <rbm@suse.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> # arm64 Link: https://patch.msgid.link/20260325120928.15848-2-fmancera@suse.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
86 lines
2.5 KiB
Plaintext
86 lines
2.5 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
#
|
|
# 802.1d Ethernet Bridging
|
|
#
|
|
|
|
config BRIDGE
|
|
tristate "802.1d Ethernet Bridging"
|
|
select LLC
|
|
select STP
|
|
help
|
|
If you say Y here, then your Linux box will be able to act as an
|
|
Ethernet bridge, which means that the different Ethernet segments it
|
|
is connected to will appear as one Ethernet to the participants.
|
|
Several such bridges can work together to create even larger
|
|
networks of Ethernets using the IEEE 802.1 spanning tree algorithm.
|
|
As this is a standard, Linux bridges will cooperate properly with
|
|
other third party bridge products.
|
|
|
|
In order to use the Ethernet bridge, you'll need the bridge
|
|
configuration tools; see <file:Documentation/networking/bridge.rst>
|
|
for location. Please read the Bridge mini-HOWTO for more
|
|
information.
|
|
|
|
If you enable iptables support along with the bridge support then you
|
|
turn your bridge into a bridging IP firewall.
|
|
iptables will then see the IP packets being bridged, so you need to
|
|
take this into account when setting up your firewall rules.
|
|
Enabling arptables support when bridging will let arptables see
|
|
bridged ARP traffic in the arptables FORWARD chain.
|
|
|
|
To compile this code as a module, choose M here: the module
|
|
will be called bridge.
|
|
|
|
If unsure, say N.
|
|
|
|
config BRIDGE_IGMP_SNOOPING
|
|
bool "IGMP/MLD snooping"
|
|
depends on BRIDGE
|
|
depends on INET
|
|
default y
|
|
help
|
|
If you say Y here, then the Ethernet bridge will be able selectively
|
|
forward multicast traffic based on IGMP/MLD traffic received from
|
|
each port.
|
|
|
|
Say N to exclude this support and reduce the binary size.
|
|
|
|
If unsure, say Y.
|
|
|
|
config BRIDGE_VLAN_FILTERING
|
|
bool "VLAN filtering"
|
|
depends on BRIDGE
|
|
depends on VLAN_8021Q
|
|
default n
|
|
help
|
|
If you say Y here, then the Ethernet bridge will be able selectively
|
|
receive and forward traffic based on VLAN information in the packet
|
|
any VLAN information configured on the bridge port or bridge device.
|
|
|
|
Say N to exclude this support and reduce the binary size.
|
|
|
|
If unsure, say Y.
|
|
|
|
config BRIDGE_MRP
|
|
bool "MRP protocol"
|
|
depends on BRIDGE
|
|
default n
|
|
help
|
|
If you say Y here, then the Ethernet bridge will be able to run MRP
|
|
protocol to detect loops
|
|
|
|
Say N to exclude this support and reduce the binary size.
|
|
|
|
If unsure, say N.
|
|
|
|
config BRIDGE_CFM
|
|
bool "CFM protocol"
|
|
depends on BRIDGE
|
|
help
|
|
If you say Y here, then the Ethernet bridge will be able to run CFM
|
|
protocol according to 802.1Q section 12.14
|
|
|
|
Say N to exclude this support and reduce the binary size.
|
|
|
|
If unsure, say N.
|