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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-08 04:17:38 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-08 04:17:38 +0400 |
commit | bdf428feb225229b1d4715b45bbdad4a934cd89c (patch) | |
tree | 9bc47e348c2081fd46c0f7d715780ce294a6953d /init/Kconfig | |
parent | a40a7201a4584a66ab234ba1006472be952f20e0 (diff) | |
parent | 184c3fc3f52fb75800deb76deffb70907d1f76ea (diff) | |
download | linux-bdf428feb225229b1d4715b45bbdad4a934cd89c.tar.xz |
Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module update from Rusty Russell:
"Nothing major: support for compressing modules, and auto-tainting
params.
PS. My virtio-next tree is empty: DaveM took the patches I had. There
might be a virtio-rng starvation fix, but so far it's a bit voodoo
so I will get to that in the next two days or it will wait"
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
moduleparam: Resolve missing-field-initializer warning
kbuild: handle module compression while running 'make modules_install'.
modinst: wrap long lines in order to enhance cmd_modules_install
modsign: lookup lines ending in .ko in .mod files
modpost: simplify file name generation of *.mod.c files
modpost: reduce visibility of symbols and constify r/o arrays
param: check for tainting before calling set op.
drm/i915: taint the kernel if unsafe module parameters are set
module: add module_param_unsafe and module_param_named_unsafe
module: make it possible to have unsafe, tainting module params
module: rename KERNEL_PARAM_FL_NOARG to avoid confusion
Diffstat (limited to 'init/Kconfig')
-rw-r--r-- | init/Kconfig | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index b48917717bae..e25a82a291a6 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1919,6 +1919,49 @@ config MODULE_SIG_HASH default "sha384" if MODULE_SIG_SHA384 default "sha512" if MODULE_SIG_SHA512 +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". + + module-init-tools has support for gzip format while kmod handle gzip + and xz compressed modules. + + 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. + + 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. + + 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. + +choice + prompt "Compression algorithm" + depends on MODULE_COMPRESS + default MODULE_COMPRESS_GZIP + help + This determines which sort of compression will be used during + 'make modules_install'. + + GZIP (default) and XZ are supported. + +config MODULE_COMPRESS_GZIP + bool "GZIP" + +config MODULE_COMPRESS_XZ + bool "XZ" + +endchoice + endif # MODULES config INIT_ALL_POSSIBLE |