[PATCH 6.6 058/139] tty: vt: make init parameter of consw::con_init() a bool
Greg Kroah-Hartman
gregkh at linuxfoundation.org
Thu Jul 3 14:42:01 UTC 2025
6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiri Slaby (SUSE) <jirislaby at kernel.org>
[ Upstream commit dae3e6b6180f1a2394b984c596d39ed2c57d25fe ]
The 'init' parameter of consw::con_init() is true for the first call of
the hook on a particular console. So make the parameter a bool.
And document the hook.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby at kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
Cc: Helge Deller <deller at gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley at HansenPartnership.com>
Cc: Daniel Vetter <daniel at ffwll.ch>
Cc: linux-fbdev at vger.kernel.org
Cc: dri-devel at lists.freedesktop.org
Cc: linux-parisc at vger.kernel.org
Tested-by: Helge Deller <deller at gmx.de> # parisc STI console
Link: https://lore.kernel.org/r/20240122110401.7289-21-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Stable-dep-of: 03bcbbb3995b ("dummycon: Trigger redraw when switching consoles with deferred takeover")
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
drivers/tty/vt/vt.c | 8 ++++----
drivers/video/console/dummycon.c | 2 +-
drivers/video/console/mdacon.c | 2 +-
drivers/video/console/newport_con.c | 2 +-
drivers/video/console/sticon.c | 2 +-
drivers/video/console/vgacon.c | 4 ++--
drivers/video/fbdev/core/fbcon.c | 2 +-
include/linux/console.h | 4 +++-
8 files changed, 14 insertions(+), 12 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 6bd1a7785e888..83028ccf6e529 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -999,7 +999,7 @@ int vc_cons_allocated(unsigned int i)
return (i < MAX_NR_CONSOLES && vc_cons[i].d);
}
-static void visual_init(struct vc_data *vc, int num, int init)
+static void visual_init(struct vc_data *vc, int num, bool init)
{
/* ++Geert: vc->vc_sw->con_init determines console size */
if (vc->vc_sw)
@@ -1083,7 +1083,7 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */
vc->port.ops = &vc_port_ops;
INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
- visual_init(vc, currcons, 1);
+ visual_init(vc, currcons, true);
if (!*vc->uni_pagedict_loc)
con_set_default_unimap(vc);
@@ -3474,7 +3474,7 @@ static int __init con_init(void)
vc_cons[currcons].d = vc = kzalloc(sizeof(struct vc_data), GFP_NOWAIT);
INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
tty_port_init(&vc->port);
- visual_init(vc, currcons, 1);
+ visual_init(vc, currcons, true);
/* Assuming vc->vc_{cols,rows,screenbuf_size} are sane here. */
vc->vc_screenbuf = kzalloc(vc->vc_screenbuf_size, GFP_NOWAIT);
vc_init(vc, currcons || !vc->vc_sw->con_save_screen);
@@ -3642,7 +3642,7 @@ static int do_bind_con_driver(const struct consw *csw, int first, int last,
old_was_color = vc->vc_can_do_color;
vc->vc_sw->con_deinit(vc);
vc->vc_origin = (unsigned long)vc->vc_screenbuf;
- visual_init(vc, i, 0);
+ visual_init(vc, i, false);
set_origin(vc);
update_attr(vc);
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index f1711b2f9ff05..9a19eb72a18b9 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -97,7 +97,7 @@ static const char *dummycon_startup(void)
return "dummy device";
}
-static void dummycon_init(struct vc_data *vc, int init)
+static void dummycon_init(struct vc_data *vc, bool init)
{
vc->vc_can_do_color = 1;
if (init) {
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index ef29b321967f0..c5b255c968794 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -352,7 +352,7 @@ static const char *mdacon_startup(void)
return "MDA-2";
}
-static void mdacon_init(struct vc_data *c, int init)
+static void mdacon_init(struct vc_data *c, bool init)
{
c->vc_complement_mask = 0x0800; /* reverse video */
c->vc_display_fg = &mda_display_fg;
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index e8e4f82cd4a1b..12c64ef470877 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -324,7 +324,7 @@ static const char *newport_startup(void)
return NULL;
}
-static void newport_init(struct vc_data *vc, int init)
+static void newport_init(struct vc_data *vc, bool init)
{
int cols, rows;
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 992a4fa431aaa..0bfeabc3f7c72 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -273,7 +273,7 @@ static int sticon_font_set(struct vc_data *vc, struct console_font *font,
return sticon_set_font(vc, font, vpitch);
}
-static void sticon_init(struct vc_data *c, int init)
+static void sticon_init(struct vc_data *c, bool init)
{
struct sti_struct *sti = sticon_sti;
int vc_cols, vc_rows;
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index c9ec89649b055..490e157aebdd4 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -332,7 +332,7 @@ static const char *vgacon_startup(void)
return display_desc;
}
-static void vgacon_init(struct vc_data *c, int init)
+static void vgacon_init(struct vc_data *c, bool init)
{
struct uni_pagedict *p;
@@ -349,7 +349,7 @@ static void vgacon_init(struct vc_data *c, int init)
c->vc_scan_lines = vga_scan_lines;
c->vc_font.height = c->vc_cell_height = vga_video_font_height;
- /* set dimensions manually if init != 0 since vc_resize() will fail */
+ /* set dimensions manually if init is true since vc_resize() will fail */
if (init) {
c->vc_cols = vga_video_num_columns;
c->vc_rows = vga_video_num_lines;
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 75996ef9992e4..9f10a6e92e509 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -993,7 +993,7 @@ static const char *fbcon_startup(void)
return display_desc;
}
-static void fbcon_init(struct vc_data *vc, int init)
+static void fbcon_init(struct vc_data *vc, bool init)
{
struct fb_info *info;
struct fbcon_ops *ops;
diff --git a/include/linux/console.h b/include/linux/console.h
index 7de11c763eb35..4efe76ac56d74 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -36,6 +36,8 @@ enum vc_intensity;
/**
* struct consw - callbacks for consoles
*
+ * @con_init: initialize the console on @vc. @init is true for the very first
+ * call on this @vc.
* @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.
@@ -46,7 +48,7 @@ enum vc_intensity;
struct consw {
struct module *owner;
const char *(*con_startup)(void);
- void (*con_init)(struct vc_data *vc, int init);
+ void (*con_init)(struct vc_data *vc, bool init);
void (*con_deinit)(struct vc_data *vc);
void (*con_clear)(struct vc_data *vc, int sy, int sx, int height,
int width);
--
2.39.5
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