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vt: remove lines parameter from scrollback

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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>
This commit is contained in:
Jiri Slaby 2016-06-23 13:34:23 +02:00 committed by Greg Kroah-Hartman
parent 17b2720b11
commit 1b0ec88ac1
3 changed files with 4 additions and 6 deletions
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2
drivers/tty/vt/keyboard.c
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@ -579,7 +579,7 @@ static void fn_scroll_forw(struct vc_data *vc)
static void fn_scroll_back(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) static void fn_show_mem(struct vc_data *vc)

6
drivers/tty/vt/vt.c
View File

@ -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); 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) scrolldelta(-(vc->vc_rows / 2));
lines = vc->vc_rows / 2;
scrolldelta(-lines);
} }
void scrollfront(struct vc_data *vc, int lines) void scrollfront(struct vc_data *vc, int lines)

2
include/linux/vt_kern.h
View File

@ -45,7 +45,7 @@ void poke_blanked_console(void);
int con_font_op(struct vc_data *vc, struct console_font_op *op); int con_font_op(struct vc_data *vc, struct console_font_op *op);
int con_set_cmap(unsigned char __user *cmap); int con_set_cmap(unsigned char __user *cmap);
int con_get_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 scrollfront(struct vc_data *vc, int lines);
void clear_buffer_attributes(struct vc_data *vc); void clear_buffer_attributes(struct vc_data *vc);
void update_region(struct vc_data *vc, unsigned long start, int count); void update_region(struct vc_data *vc, unsigned long start, int count);