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 see how tooling will respond to modules that only have the new format.
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| @@ -217,6 +217,21 @@ config EXTENDED_MODVERSIONS · 216 unmodified lines | ||
| 217 | 217 | The most likely reason you would enable this is to enable Rust |
| 218 | 218 | support. If unsure, say N. |
| 219 | 219 | |
| 220 | +config BASIC_MODVERSIONS | |
| 221 | + bool "Basic Module Versioning Support" | |
| 222 | + depends on MODVERSIONS | |
| 223 | + default y | |
| 224 | + help | |
| 225 | + This enables basic MODVERSIONS support, allowing older tools or | |
| 226 | + kernels to potentially load modules. | |
| 227 | + | |
| 228 | + Disabling this may cause older `modprobe` or `kmod` to be unable | |
| 229 | + to read MODVERSIONS information from built modules. With this | |
| 230 | + disabled, older kernels may treat this module as unversioned. | |
| 231 | + | |
| 232 | + This is enabled by default when MODVERSIONS are enabled. | |
| 233 | + If unsure, say Y. | |
| 234 | + | |
| 220 | 235 | config MODULE_SRCVERSION_ALL |
| 221 | 236 | bool "Source checksum for all modules" |
| 222 | 237 | help |