The GUEST_STATE_BUFFER_TEST config option should default to KUNIT_ALL_TESTS so that if all tests are enabled then it is included, but currently the 'default KUNIT_ALL_TESTS' statement is shadowed by 'def_tristate n', meaning that this second default statement is currently dead code. It looks to me like the commit 6ccbbc33f06a ("KVM: PPC: Add helper library for Guest State Buffers") intended to set the default to KUNIT_ALL_TESTS, but mistakenly missed the def_tristate. This dead code was found by kconfirm, a static analysis tool for Kconfig. Fixes: 6ccbbc33f06a ("KVM: PPC: Add helper library for Guest State Buffers") Signed-off-by: Julian Braha <julianbraha@gmail.com> Tested-by: Gautam Menghani <gautam@linux.ibm.com> Reviewed-by: Amit Machhiwal <amachhiw@linux.ibm.com> Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260405161545.161006-1-julianbraha@gmail.com