2 files changed, 21 insertions, 14 deletions
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 807f1e533226..829d66c67fc2 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -2,6 +2,7 @@
 #define _LINUX_LINKAGE_H
 
 #include <linux/compiler.h>
+#include <linux/stringify.h>
 #include <asm/linkage.h>
 
 #ifdef __cplusplus
@@ -14,6 +15,26 @@
 #define asmlinkage CPP_ASMLINKAGE
 #endif
 
+#ifndef SYMBOL_NAME
+#ifdef CONFIG_SYMBOL_PREFIX
+#define SYMBOL_NAME(x) CONFIG_SYMBOL_PREFIX ## x
+#else
+#define SYMBOL_NAME(x) x
+#endif
+#endif
+#define __SYMBOL_NAME(x) __stringify(SYMBOL_NAME(x))
+
+#ifndef cond_syscall
+#define cond_syscall(x) asm(".weak\t" __SYMBOL_NAME(x) \
+	"\n\t.set\t" __SYMBOL_NAME(x) "," __SYMBOL_NAME(sys_ni_syscall));
+#endif
+
+#ifndef SYSCALL_ALIAS
+#define SYSCALL_ALIAS(alias, name)				\
+	asm ("\t.globl " __SYMBOL_NAME(alias)			\
+	"\n\t.set\t" __SYMBOL_NAME(alias) "," __SYMBOL_NAME(name))
+#endif
+
 #define __page_aligned_data	__section(.data..page_aligned) __aligned(PAGE_SIZE)
 #define __page_aligned_bss	__section(.bss..page_aligned) __aligned(PAGE_SIZE)
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 3e07b92efbf6..87584373305d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -183,20 +183,6 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
 
-#ifdef CONFIG_PPC64
-#define SYSCALL_ALIAS(alias, name)					\
-	asm ("\t.globl " #alias "\n\t.set " #alias ", " #name "\n"	\
-	     "\t.globl ." #alias "\n\t.set ." #alias ", ." #name)
-#else
-#if defined(CONFIG_ALPHA) || defined(CONFIG_MIPS)
-#define SYSCALL_ALIAS(alias, name)					\
-	asm ( #alias " = " #name "\n\t.globl " #alias)
-#else
-#define SYSCALL_ALIAS(alias, name)					\
-	asm ("\t.globl " #alias "\n\t.set " #alias ", " #name)
-#endif
-#endif
-
 #ifdef CONFIG_FTRACE_SYSCALLS
 #define SYSCALL_DEFINEx(x, sname, ...)				\
 	static const char *types_##sname[] = {			\