From patchwork Wed Jun 10 13:01:01 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 6579101 Return-Path: X-Original-To: patchwork-linux-acpi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 8E0EBC0020 for ; Wed, 10 Jun 2015 13:01:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B5AAD205F5 for ; Wed, 10 Jun 2015 13:01:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CBCA3205F9 for ; Wed, 10 Jun 2015 13:01:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933280AbbFJNBo (ORCPT ); Wed, 10 Jun 2015 09:01:44 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42569 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932972AbbFJNBn (ORCPT ); Wed, 10 Jun 2015 09:01:43 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 527B7B8BAE; Wed, 10 Jun 2015 13:01:43 +0000 (UTC) Received: from shalem.localdomain.com (vpn1-4-95.ams2.redhat.com [10.36.4.95]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t5AD1YL6026315; Wed, 10 Jun 2015 09:01:39 -0400 From: Hans de Goede To: Darren Hart , "Rafael J. Wysocki" Cc: Ben Skeggs , Azael Avalos , Corentin Chary , Lee Chun-Yi , Cezary Jackiewicz , Matthew Garrett , =?UTF-8?q?Pali=20Roh=C3=A1r?= , Ike Panhc , Anisse Astier , Mattia Dongili , Henrique de Moraes Holschuh , platform-driver-x86@vger.kernel.org, ibm-acpi-devel@lists.sourceforge.net, acpi4asus-user@lists.sourceforge.net, dri-devel@lists.freedesktop.org, Aaron Lu , linux-acpi@vger.kernel.org, Hans de Goede Subject: [PATCH 01/32] apple-gmux: Stop using acpi_video_dmi_demote_vendor() Date: Wed, 10 Jun 2015 15:01:01 +0200 Message-Id: <1433941292-21530-2-git-send-email-hdegoede@redhat.com> In-Reply-To: <1433941292-21530-1-git-send-email-hdegoede@redhat.com> References: <1433941292-21530-1-git-send-email-hdegoede@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP acpi_video_dmi_demote_vendor() is going away as part of the cleanup of the code for determinging which backlight class driver(s) to register. The call to acpi_video_dmi_demote_vendor() was meant to undo the call to acpi_video_dmi_promote_vendor() when the gmux device is removed, this is questionable though since the promote call sets a flag, not a counter, so the demote call may undo a promoto done elsewhere. Moreover in practice this is a nop since the gmux device is never removed, and the flag is only checked when acpi/video.ko gets loaded, so even if the user manually removes apple-gmux the demote call is still a nop as video.ko will already have loaded by this time. Also note that none of the other users of acpi_video_dmi_promote_vendor() use acpi_video_dmi_demote_vendor(). If we ever encounter a system with a gmux where the acpi-video interface should be used, then the proper fix would be to dmi-blacklist the gmux driver on that system. Signed-off-by: Hans de Goede --- drivers/platform/x86/apple-gmux.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c index 45032ce..a7f6412 100644 --- a/drivers/platform/x86/apple-gmux.c +++ b/drivers/platform/x86/apple-gmux.c @@ -645,7 +645,6 @@ static void gmux_remove(struct pnp_dev *pnp) apple_gmux_data = NULL; kfree(gmux_data); - acpi_video_dmi_demote_vendor(); acpi_video_register(); apple_bl_register(); }