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| author | Fernando Fernandez Mancera <fmancera@suse.de> | 2026-03-25 15:08:42 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-29 21:21:22 +0300 |
| commit | 309b905deee595619cc38719f48d63d57b8bff3d (patch) | |
| tree | 877158428ba63e826349eff2a21faa18682b2dc8 /fs | |
| parent | ced629dc8e5c51ff2b5d847adeeb1035cd655d58 (diff) | |
| download | linux-309b905deee595619cc38719f48d63d57b8bff3d.tar.xz | |
ipv6: convert CONFIG_IPV6 to built-in only and clean up Kconfigs
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/dlm/Kconfig | 2 | ||||
| -rw-r--r-- | fs/gfs2/Kconfig | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/fs/dlm/Kconfig b/fs/dlm/Kconfig index b46165df5a91..fb6ba9f5a634 100644 --- a/fs/dlm/Kconfig +++ b/fs/dlm/Kconfig @@ -2,7 +2,7 @@ menuconfig DLM tristate "Distributed Lock Manager (DLM)" depends on INET - depends on SYSFS && CONFIGFS_FS && (IPV6 || IPV6=n) + depends on SYSFS && CONFIGFS_FS help A general purpose distributed lock manager for kernel or userspace applications. diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig index 7bd231d16d4a..8beee571b6af 100644 --- a/fs/gfs2/Kconfig +++ b/fs/gfs2/Kconfig @@ -26,7 +26,7 @@ config GFS2_FS config GFS2_FS_LOCKING_DLM bool "GFS2 DLM locking" - depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && \ + depends on (GFS2_FS!=n) && NET && INET && \ CONFIGFS_FS && SYSFS && (DLM=y || DLM=GFS2_FS) help Multiple node locking module for GFS2 |