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modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'.

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Andreas turned this option on, only to find out Debian (and Ubuntu!)
don't enable support in their kmod builds.

Shorten the text, and suggest N at the bottom (at least for now).

Reported-by: Andreas Mohr <andim2@users.sf.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2015-06-16 12:16:22 +09:30
parent 6727bb9c6a
commit b6c09b512d
1 changed files with 10 additions and 15 deletions
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25
init/Kconfig
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@ -1948,26 +1948,21 @@ config MODULE_COMPRESS
bool "Compress modules on installation"
depends on MODULES
help
This option compresses the kernel modules when 'make
modules_install' is run.
The modules will be compressed either using gzip or xz depend on the
choice made in "Compression algorithm".
Compresses kernel modules when 'make modules_install' is run; gzip or
xz depending on "Compression algorithm" below.
module-init-tools has support for gzip format while kmod handle gzip
and xz compressed modules.
module-init-tools MAY support gzip, and kmod MAY support gzip and xz.
When a kernel module is installed from outside of the main kernel
source and uses the Kbuild system for installing modules then that
kernel module will also be compressed when it is installed.
Out-of-tree kernel modules installed using Kbuild will also be
compressed upon installation.
This option provides little benefit when the modules are to be used inside
an initrd or initramfs, it generally is more efficient to compress the whole
initrd or initramfs instead.
Note: for modules inside an initrd or initramfs, it's more efficient
to compress the whole initrd or initramfs instead.
This is fully compatible with signed modules while the signed module is
compressed. module-init-tools or kmod handles decompression and provide to
other layer the uncompressed but signed payload.
Note: This is fully compatible with signed modules.
If in doubt, say N.
choice
prompt "Compression algorithm"