Clarify init_module() deprecation for IBT-enabled kernel#354
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jserv merged 1 commit intosysprog21:masterfrom Feb 2, 2026
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Clarify init_module() deprecation for IBT-enabled kernel#354jserv merged 1 commit intosysprog21:masterfrom
jserv merged 1 commit intosysprog21:masterfrom
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linD026
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Update the module initialization section to warn readers that using init_module() and cleanup_module() directly causes build failures on IBT (Indirect Branch Tracking) enabled systems starting from kernel 6.15[1]. This information helps newcomers identify and resolve common build errors when following older examples, since IBT has been enabled by default for x86 target since kernel 6.2[2]. [1] torvalds/linux@4fab2d76 [2] torvalds/linux@4fd5f70 Signed-off-by: Yu-Cheng Chen <otteryc210@gmail.com>
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Update the module initialization section to warn readers that using init_module() and cleanup_module() directly causes build failures on IBT (Indirect Branch Tracking) enabled systems starting from kernel 6.15[1]. This information helps newcomers identify and resolve common build errors when following older examples, since IBT has been enabled by default for x86 target since kernel 6.2[2].
Close #353
[1] torvalds/linux@4fab2d76
[2] torvalds/linux@4fd5f70
Summary by cubic
Clarified the module initialization docs to warn that using init_module() and cleanup_module() directly causes build failures on IBT-enabled kernels (6.15+), with IBT enabled by default on x86 since 6.2. Points readers to the preferred module_init/module_exit approach so they avoid outdated examples and build errors.
Written for commit b806379. Summary will update on new commits.