[PATCH] uml: Make a bunch of driver functions static

Noticed by Frank Sorenson - the methods in arch/um/drivers/tty.c should be 
static.  It turns out that all the channels have the same problem, so these
are all fixed.  These files export only a structure of function pointers, so
that structure should be the only externally visible symbol.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/drivers/fd.c

@@ -19,7 +19,7 @@ struct fd_chan {
 	char str[sizeof("1234567890\0")];
 };
 
-void *fd_init(char *str, int device, struct chan_opts *opts)
+static void *fd_init(char *str, int device, struct chan_opts *opts)
 {
 	struct fd_chan *data;
 	char *end;
@@ -43,7 +43,7 @@ void *fd_init(char *str, int device, struct chan_opts *opts)
 	return(data);
 }
 
-int fd_open(int input, int output, int primary, void *d, char **dev_out)
+static int fd_open(int input, int output, int primary, void *d, char **dev_out)
 {
 	struct fd_chan *data = d;
 	int err;
@@ -62,7 +62,7 @@ int fd_open(int input, int output, int primary, void *d, char **dev_out)
 	return(data->fd);
 }
 
-void fd_close(int fd, void *d)
+static void fd_close(int fd, void *d)
 {
 	struct fd_chan *data = d;
 	int err;
@@ -76,7 +76,7 @@ void fd_close(int fd, void *d)
 	}
 }
 
-int fd_console_write(int fd, const char *buf, int n, void *d)
+static int fd_console_write(int fd, const char *buf, int n, void *d)
 {
 	struct fd_chan *data = d;
 

arch/um/drivers/null.c

@@ -10,23 +10,24 @@
 
 static int null_chan;
 
-void *null_init(char *str, int device, struct chan_opts *opts)
+static void *null_init(char *str, int device, struct chan_opts *opts)
 {
 	return(&null_chan);
 }
 
-int null_open(int input, int output, int primary, void *d, char **dev_out)
+static int null_open(int input, int output, int primary, void *d,
+		     char **dev_out)
 {
 	*dev_out = NULL;
 	return(os_open_file(DEV_NULL, of_rdwr(OPENFLAGS()), 0));
 }
 
-int null_read(int fd, char *c_out, void *unused)
+static int null_read(int fd, char *c_out, void *unused)
 {
 	return(-ENODEV);
 }
 
-void null_free(void *data)
+static void null_free(void *data)
 {
 }
 

arch/um/drivers/port_user.c

@@ -28,7 +28,7 @@ struct port_chan {
 	char dev[sizeof("32768\0")];
 };
 
-void *port_init(char *str, int device, struct chan_opts *opts)
+static void *port_init(char *str, int device, struct chan_opts *opts)
 {
 	struct port_chan *data;
 	void *kern_data;
@@ -65,7 +65,7 @@ void *port_init(char *str, int device, struct chan_opts *opts)
 	return(NULL);
 }
 
-void port_free(void *d)
+static void port_free(void *d)
 {
 	struct port_chan *data = d;
 
@@ -73,7 +73,8 @@ void port_free(void *d)
 	kfree(data);
 }
 
-int port_open(int input, int output, int primary, void *d, char **dev_out)
+static int port_open(int input, int output, int primary, void *d,
+		     char **dev_out)
 {
 	struct port_chan *data = d;
 	int fd, err;
@@ -92,7 +93,7 @@ int port_open(int input, int output, int primary, void *d, char **dev_out)
 	return(fd);
 }
 
-void port_close(int fd, void *d)
+static void port_close(int fd, void *d)
 {
 	struct port_chan *data = d;
 
@@ -100,7 +101,7 @@ void port_close(int fd, void *d)
 	os_close_file(fd);
 }
 
-int port_console_write(int fd, const char *buf, int n, void *d)
+static int port_console_write(int fd, const char *buf, int n, void *d)
 {
 	struct port_chan *data = d;
 

arch/um/drivers/pty.c

@@ -22,7 +22,7 @@ struct pty_chan {
 	char dev_name[sizeof("/dev/pts/0123456\0")];
 };
 
-void *pty_chan_init(char *str, int device, struct chan_opts *opts)
+static void *pty_chan_init(char *str, int device, struct chan_opts *opts)
 {
 	struct pty_chan *data;
 
@@ -34,7 +34,8 @@ void *pty_chan_init(char *str, int device, struct chan_opts *opts)
 	return(data);
 }
 
-int pts_open(int input, int output, int primary, void *d, char **dev_out)
+static int pts_open(int input, int output, int primary, void *d,
+		    char **dev_out)
 {
 	struct pty_chan *data = d;
 	char *dev;
@@ -63,7 +64,7 @@ int pts_open(int input, int output, int primary, void *d, char **dev_out)
 	return(fd);
 }
 
-int getmaster(char *line)
+static int getmaster(char *line)
 {
 	char *pty, *bank, *cp;
 	int master, err;
@@ -92,7 +93,8 @@ int getmaster(char *line)
 	return(-1);
 }
 
-int pty_open(int input, int output, int primary, void *d, char **dev_out)
+static int pty_open(int input, int output, int primary, void *d,
+		    char **dev_out)
 {
 	struct pty_chan *data = d;
 	int fd, err;
@@ -115,7 +117,7 @@ int pty_open(int input, int output, int primary, void *d, char **dev_out)
 	return(fd);
 }
 
-int pty_console_write(int fd, const char *buf, int n, void *d)
+static int pty_console_write(int fd, const char *buf, int n, void *d)
 {
 	struct pty_chan *data = d;
 

arch/um/drivers/tty.c

@@ -18,7 +18,7 @@ struct tty_chan {
 	struct termios tt;
 };
 
-void *tty_chan_init(char *str, int device, struct chan_opts *opts)
+static void *tty_chan_init(char *str, int device, struct chan_opts *opts)
 {
 	struct tty_chan *data;
 
@@ -38,7 +38,8 @@ void *tty_chan_init(char *str, int device, struct chan_opts *opts)
 	return(data);
 }
 
-int tty_open(int input, int output, int primary, void *d, char **dev_out)
+static int tty_open(int input, int output, int primary, void *d,
+		    char **dev_out)
 {
 	struct tty_chan *data = d;
 	int fd, err;
@@ -59,7 +60,7 @@ int tty_open(int input, int output, int primary, void *d, char **dev_out)
 	return(fd);
 }
 
-int tty_console_write(int fd, const char *buf, int n, void *d)
+static int tty_console_write(int fd, const char *buf, int n, void *d)
 {
 	struct tty_chan *data = d;
 

arch/um/drivers/xterm.c

@@ -31,6 +31,7 @@ struct xterm_chan {
 	int direct_rcv;
 };
 
+/* Not static because it's called directly by the tt mode gdb code */
 void *xterm_init(char *str, int device, struct chan_opts *opts)
 {
 	struct xterm_chan *data;
@@ -83,8 +84,11 @@ __uml_setup("xterm=", xterm_setup,
 "    are 'xterm=gnome-terminal,-t,-x'.\n\n"
 );
 
-/* XXX This badly needs some cleaning up in the error paths */
-int xterm_open(int input, int output, int primary, void *d, char **dev_out)
+/* XXX This badly needs some cleaning up in the error paths
+ * Not static because it's called directly by the tt mode gdb code
+ */
+int xterm_open(int input, int output, int primary, void *d,
+		      char **dev_out)
 {
 	struct xterm_chan *data = d;
 	unsigned long stack;
@@ -170,6 +174,7 @@ int xterm_open(int input, int output, int primary, void *d, char **dev_out)
 	return(new);
 }
 
+/* Not static because it's called directly by the tt mode gdb code */
 void xterm_close(int fd, void *d)
 {
 	struct xterm_chan *data = d;
@@ -183,12 +188,12 @@ void xterm_close(int fd, void *d)
 	os_close_file(fd);
 }
 
-void xterm_free(void *d)
+static void xterm_free(void *d)
 {
 	free(d);
 }
 
-int xterm_console_write(int fd, const char *buf, int n, void *d)
+static int xterm_console_write(int fd, const char *buf, int n, void *d)
 {
 	struct xterm_chan *data = d;