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Age	Commit message (Collapse)	Author
2026-09-24	kconfig: Add "def_string", "def_int" and "def_hex"	Kees Cook
	Kconfig has offered "def_bool" and "def_tristate" as a shorthand for a type definition plus a default since before the git era, but has never offered the equivalent for the other three types. Conor Dooley ran into this gap[1] when fixing a symbol that had been given the wrong type: Unfortunately, there is no such thing as "def_string", but in this case we can use "default" to propagate the value of ... Nothing in the grammar requires the restriction. The rule that consumes a default is already type agnostic. Add the three missing types. No changes are needed to existing diagnostics. E.g. declaring a symbol "bool" and then assigning it with "def_string" still reports warning: ignoring type redefinition of 'CONFLICT' from 'bool' to 'string' Added tests for the types. Build tested ARCH=x86_64 with GCC 16.2.0. Tests pass with "make testconfig". Link: https://lore.kernel.org/all/20230111104848.2088516-1-conor.dooley@microchip.com/ [1] Assisted-by: LLM Signed-off-by: Kees Cook <kees@kernel.org> Tested-by: Julian Braha <julianbraha@gmail.com> Reviewed-by: Julian Braha <julianbraha@gmail.com> Link: https://patch.msgid.link/20260919005929.4077729-1-kees@kernel.org Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2026-06-03	kconfig: add kconfig-sym-check static checker	Andrew Jones
	Add 'make kconfig-sym-check', a static checker that finds Kconfig symbols referenced in expressions (select, depends on, default, etc.) but never defined via config/menuconfig anywhere in the tree. New dangling symbols are reported as errors (exit 1) unless they are listed in an exclusion file, e.g. KCONFIG_SYM_CHECK_EXCLUDES=sym-check-excludes make kconfig-sym-check The exclusion file lists one symbol per line; blank lines and lines starting with '#' are ignored. The checker also warns about uppercase N/Y/M used as tristate literal values following the same logic as checkpatch. This new static checker is the script used for [1] with a few improvements to avoid some false positives. Link: https://bugzilla.kernel.org/show_bug.cgi?id=216748 [1] Assisted-by: Claude:claude-sonnet-4-6 Signed-off-by: Andrew Jones <andrew.jones@linux.dev> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Julian Braha <julianbraha@gmail.com> Tested-by: Nicolas Schier <nsc@kernel.org> Acked-by: Nicolas Schier <nsc@kernel.org> Link: https://patch.msgid.link/20260527142703.107110-1-andrew.jones@linux.dev Signed-off-by: Nathan Chancellor <nathan@kernel.org>