diff --git a/include/linux/export.h b/include/linux/export.h
index f24b86d7dd4d..201262793369 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -46,7 +46,7 @@ extern struct module __this_module;
  * absolute relocations that require runtime processing on relocatable
  * kernels.
  */
-#define __KSYMTAB_ENTRY_NS(sym, sec)					\
+#define __KSYMTAB_ENTRY(sym, sec)					\
 	__ADDRESSABLE(sym)						\
 	asm("	.section \"___ksymtab" sec "+" #sym "\", \"a\"	\n"	\
 	    "	.balign	4					\n"	\
@@ -56,34 +56,17 @@ extern struct module __this_module;
 	    "	.long	__kstrtabns_" #sym "- .			\n"	\
 	    "	.previous					\n")
 
-#define __KSYMTAB_ENTRY(sym, sec)					\
-	__ADDRESSABLE(sym)						\
-	asm("	.section \"___ksymtab" sec "+" #sym "\", \"a\"	\n"	\
-	    "	.balign 4					\n"	\
-	    "__ksymtab_" #sym ":				\n"	\
-	    "	.long	" #sym "- .				\n"	\
-	    "	.long	__kstrtab_" #sym "- .			\n"	\
-	    "	.long	0					\n"	\
-	    "	.previous					\n")
-
 struct kernel_symbol {
 	int value_offset;
 	int name_offset;
 	int namespace_offset;
 };
 #else
-#define __KSYMTAB_ENTRY_NS(sym, sec)					\
-	static const struct kernel_symbol __ksymtab_##sym		\
-	__attribute__((section("___ksymtab" sec "+" #sym), used))	\
-	__aligned(sizeof(void *))					\
-	= { (unsigned long)&sym, __kstrtab_##sym, __kstrtabns_##sym }
-
 #define __KSYMTAB_ENTRY(sym, sec)					\
 	static const struct kernel_symbol __ksymtab_##sym		\
-	asm("__ksymtab_" #sym)						\
 	__attribute__((section("___ksymtab" sec "+" #sym), used))	\
 	__aligned(sizeof(void *))					\
-	= { (unsigned long)&sym, __kstrtab_##sym, NULL }
+	= { (unsigned long)&sym, __kstrtab_##sym, __kstrtabns_##sym }
 
 struct kernel_symbol {
 	unsigned long value;
@@ -94,28 +77,20 @@ struct kernel_symbol {
 
 #ifdef __GENKSYMS__
 
-#define ___EXPORT_SYMBOL(sym,sec)	__GENKSYMS_EXPORT_SYMBOL(sym)
-#define ___EXPORT_SYMBOL_NS(sym,sec,ns)	__GENKSYMS_EXPORT_SYMBOL(sym)
+#define ___EXPORT_SYMBOL(sym, sec, ns)	__GENKSYMS_EXPORT_SYMBOL(sym)
 
 #else
 
-#define ___export_symbol_common(sym, sec)				\
+/* For every exported symbol, place a struct in the __ksymtab section */
+#define ___EXPORT_SYMBOL(sym, sec, ns)					\
 	extern typeof(sym) sym;						\
 	__CRC_SYMBOL(sym, sec);						\
 	static const char __kstrtab_##sym[]				\
 	__attribute__((section("__ksymtab_strings"), used, aligned(1)))	\
-	= #sym								\
-
-/* For every exported symbol, place a struct in the __ksymtab section */
-#define ___EXPORT_SYMBOL_NS(sym, sec, ns)				\
-	___export_symbol_common(sym, sec);				\
+	= #sym;								\
 	static const char __kstrtabns_##sym[]				\
 	__attribute__((section("__ksymtab_strings"), used, aligned(1)))	\
-	= #ns;								\
-	__KSYMTAB_ENTRY_NS(sym, sec)
-
-#define ___EXPORT_SYMBOL(sym, sec)					\
-	___export_symbol_common(sym, sec);				\
+	= ns;								\
 	__KSYMTAB_ENTRY(sym, sec)
 
 #endif
@@ -127,8 +102,7 @@ struct kernel_symbol {
  * be reused in other execution contexts such as the UEFI stub or the
  * decompressor.
  */
-#define __EXPORT_SYMBOL_NS(sym, sec, ns)
-#define __EXPORT_SYMBOL(sym, sec)
+#define __EXPORT_SYMBOL(sym, sec, ns)
 
 #elif defined(CONFIG_TRIM_UNUSED_KSYMS)
 
@@ -144,48 +118,38 @@ struct kernel_symbol {
 #define __ksym_marker(sym)	\
 	static int __ksym_marker_##sym[0] __section(".discard.ksym") __used
 
-#define __EXPORT_SYMBOL(sym, sec)				\
-	__ksym_marker(sym);					\
-	__cond_export_sym(sym, sec, __is_defined(__KSYM_##sym))
-#define __cond_export_sym(sym, sec, conf)			\
-	___cond_export_sym(sym, sec, conf)
-#define ___cond_export_sym(sym, sec, enabled)			\
-	__cond_export_sym_##enabled(sym, sec)
-#define __cond_export_sym_1(sym, sec) ___EXPORT_SYMBOL(sym, sec)
-#define __cond_export_sym_0(sym, sec) /* nothing */
-
-#define __EXPORT_SYMBOL_NS(sym, sec, ns)				\
+#define __EXPORT_SYMBOL(sym, sec, ns)					\
 	__ksym_marker(sym);						\
-	__cond_export_ns_sym(sym, sec, ns, __is_defined(__KSYM_##sym))
-#define __cond_export_ns_sym(sym, sec, ns, conf)			\
-	___cond_export_ns_sym(sym, sec, ns, conf)
-#define ___cond_export_ns_sym(sym, sec, ns, enabled)			\
-	__cond_export_ns_sym_##enabled(sym, sec, ns)
-#define __cond_export_ns_sym_1(sym, sec, ns) ___EXPORT_SYMBOL_NS(sym, sec, ns)
-#define __cond_export_ns_sym_0(sym, sec, ns) /* nothing */
+	__cond_export_sym(sym, sec, ns, __is_defined(__KSYM_##sym))
+#define __cond_export_sym(sym, sec, ns, conf)				\
+	___cond_export_sym(sym, sec, ns, conf)
+#define ___cond_export_sym(sym, sec, ns, enabled)			\
+	__cond_export_sym_##enabled(sym, sec, ns)
+#define __cond_export_sym_1(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns)
+#define __cond_export_sym_0(sym, sec, ns) /* nothing */
 
 #else
 
-#define __EXPORT_SYMBOL_NS(sym,sec,ns)	___EXPORT_SYMBOL_NS(sym,sec,ns)
-#define __EXPORT_SYMBOL(sym,sec)	___EXPORT_SYMBOL(sym,sec)
+#define __EXPORT_SYMBOL(sym, sec, ns)	___EXPORT_SYMBOL(sym, sec, ns)
 
 #endif /* CONFIG_MODULES */
 
 #ifdef DEFAULT_SYMBOL_NAMESPACE
-#undef __EXPORT_SYMBOL
-#define __EXPORT_SYMBOL(sym, sec)				\
-	__EXPORT_SYMBOL_NS(sym, sec, DEFAULT_SYMBOL_NAMESPACE)
+#include <linux/stringify.h>
+#define _EXPORT_SYMBOL(sym, sec)	__EXPORT_SYMBOL(sym, sec, __stringify(DEFAULT_SYMBOL_NAMESPACE))
+#else
+#define _EXPORT_SYMBOL(sym, sec)	__EXPORT_SYMBOL(sym, sec, "")
 #endif
 
-#define EXPORT_SYMBOL(sym)		__EXPORT_SYMBOL(sym, "")
-#define EXPORT_SYMBOL_GPL(sym)		__EXPORT_SYMBOL(sym, "_gpl")
-#define EXPORT_SYMBOL_GPL_FUTURE(sym)	__EXPORT_SYMBOL(sym, "_gpl_future")
-#define EXPORT_SYMBOL_NS(sym, ns)	__EXPORT_SYMBOL_NS(sym, "", ns)
-#define EXPORT_SYMBOL_NS_GPL(sym, ns)	__EXPORT_SYMBOL_NS(sym, "_gpl", ns)
+#define EXPORT_SYMBOL(sym)		_EXPORT_SYMBOL(sym, "")
+#define EXPORT_SYMBOL_GPL(sym)		_EXPORT_SYMBOL(sym, "_gpl")
+#define EXPORT_SYMBOL_GPL_FUTURE(sym)	_EXPORT_SYMBOL(sym, "_gpl_future")
+#define EXPORT_SYMBOL_NS(sym, ns)	__EXPORT_SYMBOL(sym, "", #ns)
+#define EXPORT_SYMBOL_NS_GPL(sym, ns)	__EXPORT_SYMBOL(sym, "_gpl", #ns)
 
 #ifdef CONFIG_UNUSED_SYMBOLS
-#define EXPORT_UNUSED_SYMBOL(sym)	__EXPORT_SYMBOL(sym, "_unused")
-#define EXPORT_UNUSED_SYMBOL_GPL(sym)	__EXPORT_SYMBOL(sym, "_unused_gpl")
+#define EXPORT_UNUSED_SYMBOL(sym)	_EXPORT_SYMBOL(sym, "_unused")
+#define EXPORT_UNUSED_SYMBOL_GPL(sym)	_EXPORT_SYMBOL(sym, "_unused_gpl")
 #else
 #define EXPORT_UNUSED_SYMBOL(sym)
 #define EXPORT_UNUSED_SYMBOL_GPL(sym)
diff --git a/kernel/module.c b/kernel/module.c
index ff2d7359a418..26c13173da3d 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1400,7 +1400,7 @@ static int verify_namespace_is_imported(const struct load_info *info,
 	char *imported_namespace;
 
 	namespace = kernel_symbol_namespace(sym);
-	if (namespace) {
+	if (namespace && namespace[0]) {
 		imported_namespace = get_modinfo(info, "import_ns");
 		while (imported_namespace) {
 			if (strcmp(namespace, imported_namespace) == 0)
