From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E444C76188 for ; Mon, 3 Apr 2023 14:31:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233477AbjDCObx (ORCPT ); Mon, 3 Apr 2023 10:31:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35686 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233490AbjDCObu (ORCPT ); Mon, 3 Apr 2023 10:31:50 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D253D4FA9 for ; Mon, 3 Apr 2023 07:31:42 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id CF837B81C63 for ; Mon, 3 Apr 2023 14:31:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 43C77C433EF; Mon, 3 Apr 2023 14:31:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1680532299; bh=XUlcWoUW+KDtBHjGCUOL1/ueJjtMd/b3JHYVLsv9gCU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=huNucVfyJehMidx47euTjxQxKOOGZkUYc5xoa5wI0xDZnjMfXc9lC4ZImjGDbewGw PGlb+ZZAJYmMAw3RSnXXfQyREWXj2x2DoNEBqrQvflcUR1lVZVC2DIn4RUZwHlhR2Y FrQAKfPkT3oiow7wYWctRgNhzUtbRgPkuI93jbRY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mark Pearson , =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= , Hans de Goede , Sasha Levin Subject: [PATCH 5.15 30/99] platform/x86: think-lmi: Add possible_values for ThinkStation Date: Mon, 3 Apr 2023 16:08:53 +0200 Message-Id: <20230403140404.263734739@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230403140356.079638751@linuxfoundation.org> References: <20230403140356.079638751@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Mark Pearson [ Upstream commit 8a02d70679fc1c434401863333c8ea7dbf201494 ] ThinkStation platforms don't support the API to return possible_values but instead embed it in the settings string. Try and extract this information and set the possible_values attribute appropriately. Fixes: a40cd7ef22fb ("platform/x86: think-lmi: Add WMI interface support on Lenovo platforms") Signed-off-by: Mark Pearson Link: https://lore.kernel.org/r/20230320003221.561750-4-mpearson-lenovo@squebb.ca Reviewed-by: Thomas Weißschuh Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede Signed-off-by: Sasha Levin --- drivers/platform/x86/think-lmi.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index b7428f5ec4c4c..c9ed2644bb8a6 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -943,6 +943,26 @@ static int tlmi_analyze(void) if (ret || !setting->possible_values) pr_info("Error retrieving possible values for %d : %s\n", i, setting->display_name); + } else { + /* + * Older Thinkstations don't support the bios_selections API. + * Instead they store this as a [Optional:Option1,Option2] section of the + * name string. + * Try and pull that out if it's available. + */ + char *item, *optstart, *optend; + + if (!tlmi_setting(setting->index, &item, LENOVO_BIOS_SETTING_GUID)) { + optstart = strstr(item, "[Optional:"); + if (optstart) { + optstart += strlen("[Optional:"); + optend = strstr(optstart, "]"); + if (optend) + setting->possible_values = + kstrndup(optstart, optend - optstart, + GFP_KERNEL); + } + } } /* * firmware-attributes requires that possible_values are separated by ';' but -- 2.39.2