Hello, with these patches it is possible to install kernel modules in an arbitrary directory - eg. moving the /lib/modules to /usr/lib/modules or /opt/linux. While the modprobe.d and depmod.d search which already includes multiple paths is expanded to also include $(prefix) the module directory still supports only one location, only a different one under $(module_directory). Having kmod search multiple module locations while only one is supported now might break some assumption about relative module path corresponding to a specific file, would require more invasive changes to implement, and is not supportive of the goal of moving the modules away from /lib. Both kmod and the kernel need to be patched to make use of this feature. Patched kernel is backwards compatible with older kmod. Patched kmod with $(module_directory) set to /lib/modules is equivalent to unpatched kmod. Thanks Michal Link: https://lore.kernel.org/linux-modules/20210112160211.5614-1-msuchanek@xxxxxxx/ v4: set whole path to module directory instead of adding prefix v5: use pkg-config instead of jq, fix build on openssl without sm3 support Michal Suchanek (5): configure: Detect openssl sm3 support man/depmod.d: Fix incorrect /usr/lib search path libkmod, depmod: Load modprobe.d, depmod.d from ${prefix}/lib. kmod: Add pkgconfig file with kmod compile time configuration libkmod, depmod, modprobe: Make directory for kernel modules configurable Makefile.am | 6 +- configure.ac | 30 ++++++++ libkmod/libkmod.c | 11 +-- man/Makefile.am | 10 ++- man/depmod.d.xml | 9 ++- man/depmod.xml | 4 +- man/modinfo.xml | 2 +- man/modprobe.d.xml | 1 + man/modprobe.xml | 2 +- man/modules.dep.xml | 6 +- testsuite/module-playground/Makefile | 2 +- testsuite/setup-rootfs.sh | 109 +++++++++++++++------------ testsuite/test-depmod.c | 16 ++-- testsuite/test-testsuite.c | 8 +- tools/depmod.c | 7 +- tools/kmod.pc.in | 10 +++ tools/modinfo.c | 4 +- tools/modprobe.c | 4 +- tools/static-nodes.c | 6 +- 19 files changed, 156 insertions(+), 91 deletions(-) create mode 100644 tools/kmod.pc.in -- 2.41.0
