bpf: make generic bpf_jit_alloc_* depend on MODULES

Signed-off-by: Jesse Chan <jc@linux.com>
Change-Id: I33067d0b6dbc86a87bc7aca56b96f81b3bb3d010
Signed-off-by: TogoFire <togofire@mailfence.com>

kernel/bpf/core.c

@@ -800,6 +800,7 @@ static void bpf_jit_uncharge_modmem(u32 pages)
 	atomic_long_sub(pages, &bpf_jit_current);
 }
 
+#ifdef CONFIG_MODULES
 void *__weak bpf_jit_alloc_exec(unsigned long size)
 {
 	return module_alloc(size);
@@ -809,6 +810,7 @@ void __weak bpf_jit_free_exec(void *addr)
 {
 	module_memfree(addr);
 }
+#endif
 
 #if IS_ENABLED(CONFIG_BPF_JIT) && IS_ENABLED(CONFIG_CFI_CLANG)
 bool __weak arch_bpf_jit_check_func(const struct bpf_prog *prog)