2 files changed, 10 insertions, 0 deletions

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 9d873163a7ab..e60d6f21fa62 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -215,6 +215,8 @@
                 .notes : { *(.note.*) } :note
 
 #define INITCALLS                                                       \
+        *(.initcall0.init)                                              \
+        *(.initcall0s.init)                                             \
         *(.initcall1.init)                                              \
         *(.initcall1s.init)                                             \
         *(.initcall2.init)                                              \
diff --git a/include/linux/init.h b/include/linux/init.h
index ff40ea118e3a..5eb5d24b7680 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -93,6 +93,14 @@ extern void setup_arch(char **);
         static initcall_t __initcall_##fn##id __attribute_used__ \
         __attribute__((__section__(".initcall" level ".init"))) = fn
 
+/*
+ * A "pure" initcall has no dependencies on anything else, and purely
+ * initializes variables that couldn't be statically initialized.
+ *
+ * This only exists for built-in code, not for modules.
+ */
+#define pure_initcall(fn)               __define_initcall("0",fn,1)
+
 #define core_initcall(fn)               __define_initcall("1",fn,1)
 #define core_initcall_sync(fn)          __define_initcall("1s",fn,1s)
 #define postcore_initcall(fn)           __define_initcall("2",fn,2)