@@ -970,7 +970,7 @@ void redraw_screen(struct vc_data *vc, int is_switch)
}
if (redraw) {
- int update;
+ bool update;
int old_was_color = vc->vc_can_do_color;
set_origin(vc);
@@ -122,9 +122,9 @@ static bool dummycon_scroll(struct vc_data *vc, unsigned int top,
return false;
}
-static int dummycon_switch(struct vc_data *vc)
+static bool dummycon_switch(struct vc_data *vc)
{
- return 0;
+ return false;
}
/*
@@ -446,9 +446,9 @@ static void mdacon_clear(struct vc_data *c, unsigned int y, unsigned int x,
scr_memsetw(dest, eattr, width * 2);
}
-static int mdacon_switch(struct vc_data *c)
+static bool mdacon_switch(struct vc_data *c)
{
- return 1; /* redrawing needed */
+ return true; /* redrawing needed */
}
static int mdacon_blank(struct vc_data *c, int blank, int mode_switch)
@@ -459,7 +459,7 @@ static void newport_cursor(struct vc_data *vc, bool enable)
newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs);
}
-static int newport_switch(struct vc_data *vc)
+static bool newport_switch(struct vc_data *vc)
{
static int logo_drawn = 0;
@@ -473,7 +473,7 @@ static int newport_switch(struct vc_data *vc)
}
}
- return 1;
+ return true;
}
static int newport_blank(struct vc_data *c, int blank, int mode_switch)
@@ -293,9 +293,9 @@ static void sticon_clear(struct vc_data *conp, unsigned int sy, unsigned int sx,
conp->vc_video_erase_char, font_data[conp->vc_num]);
}
-static int sticon_switch(struct vc_data *conp)
+static bool sticon_switch(struct vc_data *conp)
{
- return 1; /* needs refreshing */
+ return true; /* needs refreshing */
}
static int sticon_blank(struct vc_data *c, int blank, int mode_switch)
@@ -614,7 +614,7 @@ static void vgacon_doresize(struct vc_data *c,
raw_spin_unlock_irqrestore(&vga_lock, flags);
}
-static int vgacon_switch(struct vc_data *c)
+static bool vgacon_switch(struct vc_data *c)
{
int x = c->vc_cols * VGA_FONTWIDTH;
int y = c->vc_rows * c->vc_cell_height;
@@ -643,7 +643,7 @@ static int vgacon_switch(struct vc_data *c)
vgacon_doresize(c, c->vc_cols, c->vc_rows);
}
- return 0; /* Redrawing not needed */
+ return false; /* Redrawing not needed */
}
static void vga_set_palette(struct vc_data *vc, const unsigned char *table)
@@ -2056,7 +2056,7 @@ static int fbcon_resize(struct vc_data *vc, unsigned int width,
return 0;
}
-static int fbcon_switch(struct vc_data *vc)
+static bool fbcon_switch(struct vc_data *vc)
{
struct fb_info *info, *old_info = NULL;
struct fbcon_ops *ops;
@@ -2178,9 +2178,9 @@ static int fbcon_switch(struct vc_data *vc)
vc->vc_origin + vc->vc_size_row * vc->vc_top,
vc->vc_size_row * (vc->vc_bottom -
vc->vc_top) / 2);
- return 0;
+ return false;
}
- return 1;
+ return true;
}
static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info,
@@ -46,6 +46,8 @@ enum vc_intensity;
* @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
* Return true if no generic handling should be done.
* Invoked by csi_M and printing to the console.
+ * @con_switch: notifier about the console switch; it is supposed to return
+ * true if a redraw is needed.
* @con_set_palette: sets the palette of the console to @table (optional)
* @con_scrolldelta: the contents of the console should be scrolled by @lines.
* Invoked by user. (optional)
@@ -66,7 +68,7 @@ struct consw {
bool (*con_scroll)(struct vc_data *vc, unsigned int top,
unsigned int bottom, enum con_scroll dir,
unsigned int lines);
- int (*con_switch)(struct vc_data *vc);
+ bool (*con_switch)(struct vc_data *vc);
int (*con_blank)(struct vc_data *vc, int blank, int mode_switch);
int (*con_font_set)(struct vc_data *vc, struct console_font *font,
unsigned int vpitch, unsigned int flags);
The non-zero (true) return value from consw::con_switch() means a redraw is needed. So make this return type a bool explicitly instead of int. The latter might imply that -Eerrors are expected. They are not. And document the hook. Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-parisc@vger.kernel.org --- drivers/tty/vt/vt.c | 2 +- drivers/video/console/dummycon.c | 4 ++-- drivers/video/console/mdacon.c | 4 ++-- drivers/video/console/newport_con.c | 4 ++-- drivers/video/console/sticon.c | 4 ++-- drivers/video/console/vgacon.c | 4 ++-- drivers/video/fbdev/core/fbcon.c | 6 +++--- include/linux/console.h | 4 +++- 8 files changed, 17 insertions(+), 15 deletions(-)