Android啓動界面右上角黑塊（光標）刪除

1.打開源碼路徑下kernel_imx\drivers\video\console\fbcon.c文件

2.修改函數fbcon_cursor如下

static void fbcon_cursor(struct vc_data *vc, int mode)
{
return;
	struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
	struct fbcon_ops *ops = info->fbcon_par;
	int y;
 	int c = scr_readw((u16 *) vc->vc_pos);

	if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1)
		return;

	if (vc->vc_cursor_type & 0x10)
		fbcon_del_cursor_timer(info);
	else
		fbcon_add_cursor_timer(info);

	ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1;
	if (mode & CM_SOFTBACK) {
		mode &= ~CM_SOFTBACK;
		y = softback_lines;
	} else {
		if (softback_lines)
			fbcon_set_origin(vc);
		y = 0;
	}

	ops->cursor(vc, info, mode, y, get_color(vc, info, c, 1),
		    get_color(vc, info, c, 0));
}

3.修改函數fb_flashcursor如下

static void fb_flashcursor(struct work_struct *work)
{
return;
	struct fb_info *info = container_of(work, struct fb_info, queue);
	struct fbcon_ops *ops = info->fbcon_par;
	struct vc_data *vc = NULL;
	int c;
	int mode;
	int ret;

	/* FIXME: we should sort out the unbind locking instead */
	/* instead we just fail to flash the cursor if we can't get
	 * the lock instead of blocking fbcon deinit */
	ret = console_trylock();
	if (ret == 0)
		return;

	if (ops && ops->currcon != -1)
		vc = vc_cons[ops->currcon].d;

	if (!vc || !CON_IS_VISIBLE(vc) ||
 	    registered_fb[con2fb_map[vc->vc_num]] != info ||
	    vc->vc_deccm != 1) {
		console_unlock();
		return;
	}

	c = scr_readw((u16 *) vc->vc_pos);
	mode = (!ops->cursor_flash || ops->cursor_state.enable) ?
		CM_ERASE : CM_DRAW;
	ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1),
		    get_color(vc, info, c, 0));
	console_unlock();
}