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-rw-r--r--arch/um/include/shared/os.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 6c656ef096c99..5babad8c5f75e 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -241,7 +241,6 @@ extern void block_signals(void);
extern void unblock_signals(void);
extern int um_set_signals(int enable);
extern int um_set_signals_trace(int enable);
-extern int os_is_signal_stack(void);
extern void deliver_alarm(void);
extern void register_pm_wake_signal(void);
extern void block_signals_hard(void);