It is always called with 0, so remove the parameter and pass the default down to scrolldelta without checking.
Signed-off-by: Jiri Slaby <[email protected]> --- drivers/tty/vt/keyboard.c | 2 +- drivers/tty/vt/vt.c | 6 ++---- include/linux/vt_kern.h | 2 +- 3 files changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index e75490177725..5b23d23c63d6 100644 --- 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 dc125322f48f..abc79ae19079 100644 --- 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 8d7634247fb4..160f81fe3eb8 100644 --- 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); -- 2.9.0
