linux/net/bridge/Kconfig, branch master

ipv6: convert CONFIG_IPV6 to built-in only and clean up Kconfigs

2026-03-29T18:21:22Z

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 Tested-by: Ricardo B. Marlière Acked-by: Krzysztof Kozlowski # arm64 Link: https://patch.msgid.link/20260325120928.15848-2-fmancera@suse.de Signed-off-by: Jakub Kicinski

bridge: cfm: Add BRIDGE_CFM to Kconfig.

2020-10-30T01:39:43Z

This makes it possible to include or exclude the CFM protocol according to 802.1Q section 12.14. Signed-off-by: Henrik Bjoernlund Reviewed-by: Horatiu Vultur Acked-by: Nikolay Aleksandrov Signed-off-by: Jakub Kicinski

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-13T16:57:21Z

Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada

bridge: mrp: Update Kconfig

2020-04-27T18:40:25Z

Add the option BRIDGE_MRP to allow to build in or not MRP support. The default value is N. Reviewed-by: Nikolay Aleksandrov Signed-off-by: Horatiu Vultur Signed-off-by: David S. Miller

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46Z

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

docs: fix some broken documentation references

2018-09-20T17:09:53Z

Some documentation files received recent changes and are pointing to wrong places. Those references can easily fixed with the help of a script: $ ./scripts/documentation-file-ref-check --fix Signed-off-by: Mauro Carvalho Chehab Reviewed-by: Jan Kara Reviewed-by: Darrick J. Wong Signed-off-by: Jonathan Corbet

bridge: Add vlan filtering infrastructure

2013-02-14T00:41:46Z

Adds an optional infrustructure component to bridge that would allow native vlan filtering in the bridge. Each bridge port (as well as the bridge device) now get a VLAN bitmap. Each bit in the bitmap is associated with a vlan id. This way if the bit corresponding to the vid is set in the bitmap that the packet with vid is allowed to enter and exit the port. Write access the bitmap is protected by RTNL and read access protected by RCU. Vlan functionality is disabled by default. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller

net: bridge builtin vs. ipv6 modular

2011-03-10T21:45:57Z

When configs BRIDGE=y and IPV6=m, this build error occurs: br_multicast.c:(.text+0xa3341): undefined reference to `ipv6_dev_get_saddr' BRIDGE_IGMP_SNOOPING is boolean; if it were tristate, then adding depends on IPV6 || IPV6=n to BRIDGE_IGMP_SNOOPING would be a good fix. As it is currently, making BRIDGE depend on the IPV6 config works. Reported-by: Patrick Schaaf Signed-off-by: Randy Dunlap Signed-off-by: David S. Miller

bridge br_multicast: IPv6 MLD support.

2010-04-23T04:35:56Z

Signed-off-by: YOSHIFUJI Hideaki

bridge: depends on INET

2010-03-03T09:23:22Z

br_multicast calls ip_send_check(), so it should depend on INET. built-in: br_multicast.c:(.text+0x88cf4): undefined reference to `ip_send_check' or modular: ERROR: "ip_send_check" [net/bridge/bridge.ko] undefined! Signed-off-by: Randy Dunlap Signed-off-by: David S. Miller