1 files changed, 5 insertions, 0 deletions

diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 6d865d4eade0..53dee8d3cdcc 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -311,4 +311,9 @@ extern void os_set_pollfd(int i, int fd);
 extern void os_set_ioignore(void);
 extern void init_irq_signals(int on_sigstack);
 
+/* sigio.c */
+extern void write_sigio_workaround(void);
+extern int add_sigio_fd(int fd, int read);
+extern int ignore_sigio_fd(int fd);
+
 #endif