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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 78154C433E2 for ; Mon, 8 Jun 2020 23:28:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F41D2074B for ; Mon, 8 Jun 2020 23:28:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591658890; bh=56jubeqSvCe5abxjdH8iGRYSrHs+X6XVvwqLUlx67Zo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=p/s6W9SuKID6IFejRJQb8NuP9iD146xkmhF+lU/0lziGooksq2sX4VgcGHZPEgpOI wlYqcQtS/ELoPUHnwFukBanXksA1n8PL38jGV4APxlfXYt2Tf8B6csoJ7PZZqLjm1S YrMyxHTDvJnk8QlyDCaGv9C23boUxUXcxr9LE9+8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387696AbgFHX2H (ORCPT ); Mon, 8 Jun 2020 19:28:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:46958 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387397AbgFHXWZ (ORCPT ); Mon, 8 Jun 2020 19:22:25 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id ECF582086A; Mon, 8 Jun 2020 23:22:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591658544; bh=56jubeqSvCe5abxjdH8iGRYSrHs+X6XVvwqLUlx67Zo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DACyNFBNx8YZ0aOdjm+9JGcUp790ezNSDkuLCn1zFIwl/+vqVlInDxrm4vEusVrgH aAFxfO/nQw7VsyTHSByQJKJ9ElPu3HSiWoWoZHtPCnwR5oJv4ml6daW1ux4x8vzYNc psgd6PD5wGIXwz4aTzQI/BldxW63bJrqLx0Ik5w0= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Chris Chiu , Hans de Goede , Andy Shevchenko , Sasha Levin , acpi4asus-user@lists.sourceforge.net, platform-driver-x86@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 166/175] platform/x86: asus_wmi: Reserve more space for struct bias_args Date: Mon, 8 Jun 2020 19:18:39 -0400 Message-Id: <20200608231848.3366970-166-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200608231848.3366970-1-sashal@kernel.org> References: <20200608231848.3366970-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chris Chiu [ Upstream commit 7b91f1565fbfbe5a162d91f8a1f6c5580c2fc1d0 ] On the ASUS laptop UX325JA/UX425JA, most of the media keys are not working due to the ASUS WMI driver fails to be loaded. The ACPI error as follows leads to the failure of asus_wmi_evaluate_method. ACPI BIOS Error (bug): AE_AML_BUFFER_LIMIT, Field [IIA3] at bit offset/length 96/32 exceeds size of target Buffer (96 bits) (20200326/dsopcode-203) No Local Variables are initialized for Method [WMNB] ACPI Error: Aborting method \_SB.ATKD.WMNB due to previous error (AE_AML_BUFFER_LIMIT) (20200326/psparse-531) The DSDT for the WMNB part shows that 5 DWORD required for local variables and the 3rd variable IIA3 hit the buffer limit. Method (WMNB, 3, Serialized) { .. CreateDWordField (Arg2, Zero, IIA0) CreateDWordField (Arg2, 0x04, IIA1) CreateDWordField (Arg2, 0x08, IIA2) CreateDWordField (Arg2, 0x0C, IIA3) CreateDWordField (Arg2, 0x10, IIA4) Local0 = (Arg1 & 0xFFFFFFFF) If ((Local0 == 0x54494E49)) .. } The limitation is determined by the input acpi_buffer size passed to the wmi_evaluate_method. Since the struct bios_args is the data structure used as input buffer by default for all ASUS WMI calls, the size needs to be expanded to fix the problem. Signed-off-by: Chris Chiu Reviewed-by: Hans de Goede Signed-off-by: Andy Shevchenko Signed-off-by: Sasha Levin --- drivers/platform/x86/asus-wmi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 41e28552b2ce..b1f4a31ba1ee 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -111,6 +111,8 @@ struct bios_args { u32 arg0; u32 arg1; u32 arg2; /* At least TUF Gaming series uses 3 dword input buffer. */ + u32 arg4; + u32 arg5; } __packed; /* -- 2.25.1