Makefile: Add conditional check for KSU hook configurations

Author: Loukious

drivers/kernelsu/Makefile

@@ -112,6 +112,9 @@ $(info -- KernelSU-Next Manager signature hash: $(KSU_NEXT_MANAGER_HASH))
 ## Logic flipped for HAVE_KSU_HOOK: 0 is success, 1 is failure
 HAVE_KSU_HOOK ?= 1
 
+# Only check hooks when we have config (skip during clean/mrproper when .config is absent)
+ifneq ($(CONFIG_KSU_MANUAL_HOOK)$(CONFIG_KSU_KPROBES_HOOK),)
+
 # Checks hooks state
 ifeq ($(CONFIG_KSU_KPROBES_HOOK), y)
 $(info -- KernelSU-Next: Hook mode: Kprobes)
@@ -131,6 +134,8 @@ ifneq ($(HAVE_KSU_HOOK),0)
 $(error -- KernelSU-Next: No hooks were defined, please integrate manual hooks in your kernel!)
 endif
 
+endif # hook config check
+
 # some backports
 ifneq ($(shell grep -Eq "^static int can_umount" $(srctree)/fs/namespace.c; echo $$?),0)
 $(info -- KSU_NEXT: adding function 'static int can_umount(const struct path *path, int flags);' to $(srctree)/fs/namespace.c)