[PATCH v3] tty: vt: Remove some repetitive initialization

From: oushixiong
Date: Tue Aug 01 2023 - 22:21:13 EST


Members vc_col, vc_rows and vc_size_row of the struct vc_data have been
initialized in visual_init(), so it no longer to initialized them again
in vc_init().

Signed-off-by: oushixiong <oushixiong@xxxxxxxxxx>
---
v1->v2:
- Fix the comment.
v2->v3:
- Fix the comment again.

drivers/tty/vt/vt.c | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 1e8e57b45688..cf77011a8f4e 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -140,8 +140,7 @@ EXPORT_SYMBOL(vc_cons);
static const struct consw *con_driver_map[MAX_NR_CONSOLES];

static int con_open(struct tty_struct *, struct file *);
-static void vc_init(struct vc_data *vc, unsigned int rows,
- unsigned int cols, int do_clear);
+static void vc_init(struct vc_data *vc, int do_clear);
static void gotoxy(struct vc_data *vc, int new_x, int new_y);
static void save_cur(struct vc_data *vc);
static void reset_terminal(struct vc_data *vc, int do_clear);
@@ -1103,7 +1102,7 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */
if (global_cursor_default == -1)
global_cursor_default = 1;

- vc_init(vc, vc->vc_rows, vc->vc_cols, 1);
+ vc_init(vc, 1);
vcs_make_sysfs(currcons);
atomic_notifier_call_chain(&vt_notifier_list, VT_ALLOCATE, &param);

@@ -3398,16 +3397,10 @@ module_param_named(color, default_color, int, S_IRUGO | S_IWUSR);
module_param_named(italic, default_italic_color, int, S_IRUGO | S_IWUSR);
module_param_named(underline, default_underline_color, int, S_IRUGO | S_IWUSR);

-static void vc_init(struct vc_data *vc, unsigned int rows,
- unsigned int cols, int do_clear)
+static void vc_init(struct vc_data *vc, int do_clear)
{
int j, k ;

- vc->vc_cols = cols;
- vc->vc_rows = rows;
- vc->vc_size_row = cols << 1;
- vc->vc_screenbuf_size = vc->vc_rows * vc->vc_size_row;
-
set_origin(vc);
vc->vc_pos = vc->vc_origin;
reset_vc(vc);
@@ -3475,8 +3468,7 @@ static int __init con_init(void)
visual_init(vc, currcons, 1);
/* Assuming vc->vc_{cols,rows,screenbuf_size} are sane here. */
vc->vc_screenbuf = kzalloc(vc->vc_screenbuf_size, GFP_NOWAIT);
- vc_init(vc, vc->vc_rows, vc->vc_cols,
- currcons || !vc->vc_sw->con_save_screen);
+ vc_init(vc, currcons || !vc->vc_sw->con_save_screen);
}
currcons = fg_console = 0;
master_display_fg = vc = vc_cons[currcons].d;
--
2.25.1


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