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| author | Masahiro Yamada <masahiroy@kernel.org> | 2021-03-31 22:38:10 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2021-04-25 05:24:33 +0900 |
| commit | d4bbe942098b0c9b487d424a3c545c9ed56462d7 (patch) | |
| tree | 5006f8351cc50548de705865e7fee3d1087b7506 /init | |
| parent | 961ab4a3cd66c285951cf4c8ec10bc8d9a4b0232 (diff) | |
| download | lwn-d4bbe942098b0c9b487d424a3c545c9ed56462d7.tar.gz lwn-d4bbe942098b0c9b487d424a3c545c9ed56462d7.zip | |
kbuild: remove CONFIG_MODULE_COMPRESS
CONFIG_MODULE_COMPRESS is only used to activate the choice for module
compression algorithm. It will be simpler to make the choice always
visible, and add CONFIG_MODULE_COMPRESS_NONE in the choice.
This is more consistent with the "Kernel compression mode" and "Built-in
initramfs compression mode" choices. CONFIG_KERNEL_UNCOMPRESSED and
CONFIG_INITRAMFS_COMPRESSION_NONE are available to choose no compression.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 45 |
1 files changed, 26 insertions, 19 deletions
diff --git a/init/Kconfig b/init/Kconfig index 019c1874e609..510f6fcd9b7f 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -2225,40 +2225,47 @@ config MODULE_SIG_HASH default "sha384" if MODULE_SIG_SHA384 default "sha512" if MODULE_SIG_SHA512 -config MODULE_COMPRESS - bool "Compress modules on installation" +choice + prompt "Module compression mode" help + This option allows you to choose the algorithm which will be used to + compress modules when 'make modules_install' is run. (or, you can + choose to not compress modules at all.) - Compresses kernel modules when 'make modules_install' is run; gzip or - xz depending on "Compression algorithm" below. + External modules will also be compressed in the same way during the + installation. - module-init-tools MAY support gzip, and kmod MAY support gzip and xz. + For modules inside an initrd or initramfs, it's more efficient to + compress the whole initrd or initramfs instead. - Out-of-tree kernel modules installed using Kbuild will also be - compressed upon installation. + This is fully compatible with signed modules. - Note: for modules inside an initrd or initramfs, it's more efficient - to compress the whole initrd or initramfs instead. + Please note that the tool used to load modules needs to support the + corresponding algorithm. module-init-tools MAY support gzip, and kmod + MAY support gzip and xz. - Note: This is fully compatible with signed modules. + Your build system needs to provide the appropriate compression tool + to compress the modules. - If in doubt, say N. + If in doubt, select 'None'. -choice - prompt "Compression algorithm" - depends on MODULE_COMPRESS - default MODULE_COMPRESS_GZIP +config MODULE_COMPRESS_NONE + bool "None" help - This determines which sort of compression will be used during - 'make modules_install'. - - GZIP (default) and XZ are supported. + Do not compress modules. The installed modules are suffixed + with .ko. config MODULE_COMPRESS_GZIP bool "GZIP" + help + Compress modules with GZIP. The installed modules are suffixed + with .ko.gz. config MODULE_COMPRESS_XZ bool "XZ" + help + Compress modules with XZ. The installed modules are suffixed + with .ko.xz. endchoice |