lkdtm_DOUBLE_FAULT() already has internal logic to handle !CONFIG_X86_32. Compiling out the prototype actually prevents that logic from being useful.
Fixes the following W=1 warning: drivers/misc/lkdtm/bugs.c: At top level: drivers/misc/lkdtm/bugs.c:420:6: warning: no previous prototype for ‘lkdtm_DOUBLE_FAULT’ [-Wmissing-prototypes] 420 | void lkdtm_DOUBLE_FAULT(void) | ^~~~~~~~~~~~~~~~~~ Cc: Kees Cook <[email protected]> Signed-off-by: Lee Jones <[email protected]> --- drivers/misc/lkdtm/lkdtm.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/misc/lkdtm/lkdtm.h b/drivers/misc/lkdtm/lkdtm.h index 601a2156a0d48..8878538b2c132 100644 --- a/drivers/misc/lkdtm/lkdtm.h +++ b/drivers/misc/lkdtm/lkdtm.h @@ -31,9 +31,7 @@ void lkdtm_CORRUPT_USER_DS(void); void lkdtm_STACK_GUARD_PAGE_LEADING(void); void lkdtm_STACK_GUARD_PAGE_TRAILING(void); void lkdtm_UNSET_SMEP(void); -#ifdef CONFIG_X86_32 void lkdtm_DOUBLE_FAULT(void); -#endif void lkdtm_CORRUPT_PAC(void); /* lkdtm_heap.c */ -- 2.25.1
