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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-07 20:17:38 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-07 20:17:38 -0400
commitbdf428feb225229b1d4715b45bbdad4a934cd89c (patch)
tree9bc47e348c2081fd46c0f7d715780ce294a6953d /init/Kconfig
parenta40a7201a4584a66ab234ba1006472be952f20e0 (diff)
parent184c3fc3f52fb75800deb76deffb70907d1f76ea (diff)
downloadlinux-linaro-stable-bdf428feb225229b1d4715b45bbdad4a934cd89c.tar.gz
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/Kconfig43
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