On 11/22/24 4:19 PM, Matthew Maurer wrote: > If you know that your kernel modules will only ever be loaded by a newer > kernel, you can disable BASIC_MODVERSIONS to save space. This also > allows easy creation of test modules to seee how tooling will respond to > modules that only have the new format. > > Signed-off-by: Matthew Maurer <mmaurer@xxxxxxxxxx> > --- > kernel/module/Kconfig | 15 +++++++++++++++ > scripts/Makefile.modpost | 1 + > scripts/mod/modpost.c | 19 +++++++++++-------- > 3 files changed, 27 insertions(+), 8 deletions(-) > > diff --git a/kernel/module/Kconfig b/kernel/module/Kconfig > index a31c617cd67d3d66b24d2fba34cbd5cc9c53ab78..f28b361494c4b4cc2446d683589f9452a0043b2b 100644 > --- a/kernel/module/Kconfig > +++ b/kernel/module/Kconfig > @@ -161,6 +161,7 @@ config MODULE_UNLOAD_TAINT_TRACKING > config MODVERSIONS > bool "Module versioning support" > depends on !COMPILE_TEST > + selects BASIC_MODVERSIONS tested? 'selects' is not valid. > help > Usually, you have to use modules compiled with your kernel. > Saying Y here makes it sometimes possible to use modules > @@ -218,6 +219,20 @@ config EXTENDED_MODVERSIONS > The most likely reason you would enable this is to enable Rust > support. If unsure, say N. > > +config BASIC_MODVERSIONS > + bool "Basic Module Versioning Support" > + depends on MODVERSIONS > + help > + This enables basic MODVERSIONS support, allowing older tools or > + kernels to potentially load modules. > + > + Disabling this may cause older `modprobe` or `kmod` to be unable > + to read MODVERSIONS information from built modules. With this > + disabled, older kernels may treat this module as unversioned. > + > + This is enabled by default when MODVERSIONS are enabled. > + If unsure, say Y. > + > config MODULE_SRCVERSION_ALL > bool "Source checksum for all modules" > help -- ~Randy
