It's user-only since commit a7e0f9bd2ace ("gdbstub: abstract target
specific details from gdb_put_packet_binary").

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 gdbstub/internals.h | 2 --
 gdbstub/user.c      | 2 +-
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/gdbstub/internals.h b/gdbstub/internals.h
index bf5a5c63029..5acc36846f3 100644
--- a/gdbstub/internals.h
+++ b/gdbstub/internals.h
@@ -142,8 +142,6 @@ void gdb_create_default_process(GDBState *s);
 int gdb_signal_to_target(int sig);
 int gdb_target_signal_to_gdb(int sig);
 
-int gdb_get_char(void); /* user only */
-
 /**
  * gdb_continue() - handle continue in mode specific way.
  */
diff --git a/gdbstub/user.c b/gdbstub/user.c
index 0b4bfa9c488..1fef5201f4e 100644
--- a/gdbstub/user.c
+++ b/gdbstub/user.c
@@ -103,7 +103,7 @@ typedef struct {
 
 static GDBUserState gdbserver_user_state;
 
-int gdb_get_char(void)
+static int gdb_get_char(void)
 {
     uint8_t ch;
     int ret;
-- 
2.46.2