vt: remove lines parameter from scrollback

It is always called with 0, so remove the parameter and pass the
default down to scrolldelta without checking.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index f973bfc..cd08c10 100644 (file)
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -579,7 +579,7 @@ static void fn_scroll_forw(struct vc_data *vc)
 
 static void fn_scroll_back(struct vc_data *vc)
 {
-       scrollback(vc, 0);
+       scrollback(vc);
 }
 
 static void fn_show_mem(struct vc_data *vc)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index dc12532..abc79ae 100644 (file)
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1102,11 +1102,9 @@ static void gotoxay(struct vc_data *vc, int new_x, int new_y)
        gotoxy(vc, new_x, vc->vc_decom ? (vc->vc_top + new_y) : new_y);
 }
 
-void scrollback(struct vc_data *vc, int lines)
+void scrollback(struct vc_data *vc)
 {
-       if (!lines)
-               lines = vc->vc_rows / 2;
-       scrolldelta(-lines);
+       scrolldelta(-(vc->vc_rows / 2));
 }
 
 void scrollfront(struct vc_data *vc, int lines)

diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index 8d76342..160f81f 100644 (file)
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -45,7 +45,7 @@ void poke_blanked_console(void);
 int con_font_op(struct vc_data *vc, struct console_font_op *op);
 int con_set_cmap(unsigned char __user *cmap);
 int con_get_cmap(unsigned char __user *cmap);
-void scrollback(struct vc_data *vc, int lines);
+void scrollback(struct vc_data *vc);
 void scrollfront(struct vc_data *vc, int lines);
 void clear_buffer_attributes(struct vc_data *vc);
 void update_region(struct vc_data *vc, unsigned long start, int count);