modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'.

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>

1 files changed, 10 insertions, 15 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 968a001790af..bcb7e1e13f7d 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -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"