On 9/5/24 08:05, Roberto Sassu wrote: ... > +module_init(digest_cache_test_init); > +module_exit(digest_cache_test_fini); > +MODULE_LICENSE("GPL"); Missing MODULE_DESCRIPTION() Since commit 1fffe7a34c89 ("script: modpost: emit a warning when the description is missing"), a module without a MODULE_DESCRIPTION() will result in a warning when built with make W=1. Recently, multiple developers have been eradicating these warnings treewide, and very few are left, so please don't introduce a new one :)