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-rw-r--r--arch/arc/include/asm/syscalls.h1
-rw-r--r--arch/arc/include/uapi/asm/unistd.h9
2 files changed, 6 insertions, 4 deletions
diff --git a/arch/arc/include/asm/syscalls.h b/arch/arc/include/asm/syscalls.h
index e56f9fcc5581..772b67ca56e7 100644
--- a/arch/arc/include/asm/syscalls.h
+++ b/arch/arc/include/asm/syscalls.h
@@ -17,6 +17,7 @@ int sys_clone_wrapper(int, int, int, int, int);
int sys_cacheflush(uint32_t, uint32_t uint32_t);
int sys_arc_settls(void *);
int sys_arc_gettls(void);
+int sys_arc_usr_cmpxchg(int *, int, int);
#include <asm-generic/syscalls.h>
diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h
index 41fa2ec9e02c..9a34136d84b2 100644
--- a/arch/arc/include/uapi/asm/unistd.h
+++ b/arch/arc/include/uapi/asm/unistd.h
@@ -27,18 +27,19 @@
#define NR_syscalls __NR_syscalls
+/* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */
+#define __NR_sysfs (__NR_arch_specific_syscall + 3)
+
/* ARC specific syscall */
#define __NR_cacheflush (__NR_arch_specific_syscall + 0)
#define __NR_arc_settls (__NR_arch_specific_syscall + 1)
#define __NR_arc_gettls (__NR_arch_specific_syscall + 2)
+#define __NR_arc_usr_cmpxchg (__NR_arch_specific_syscall + 4)
__SYSCALL(__NR_cacheflush, sys_cacheflush)
__SYSCALL(__NR_arc_settls, sys_arc_settls)
__SYSCALL(__NR_arc_gettls, sys_arc_gettls)
-
-
-/* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */
-#define __NR_sysfs (__NR_arch_specific_syscall + 3)
+__SYSCALL(__NR_arc_usr_cmpxchg, sys_arc_usr_cmpxchg)
__SYSCALL(__NR_sysfs, sys_sysfs)
#undef __SYSCALL
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