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 2A3B3C4332F for ; Wed, 19 Oct 2022 10:48:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229849AbiJSKsn (ORCPT ); Wed, 19 Oct 2022 06:48:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53970 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233350AbiJSKqk (ORCPT ); Wed, 19 Oct 2022 06:46:40 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C08311A94B; Wed, 19 Oct 2022 03:21:44 -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 C1C25B822E7; Wed, 19 Oct 2022 08:48:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2DFB9C433C1; Wed, 19 Oct 2022 08:48:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666169280; bh=e+Vd7JvFc0fcUes11UDUpyQCNraPicOwdsaoFGchMI0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iF42qtVC6DvH4BKvQfmRFFrA8te46MQxqmBe0VXi4l8guCHruQGa5/gkU3yn1vqkb AhK63lvEOC6x14198wvQq415Y3xpKLbZ/WmKgZtAC74EQ0I18A8CHKWm7gIivIm0Ns PYF+AeSElwXyg3LNij+MEERasKE3S8k/Pkt4CnRg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Huisong Li , Sudeep Holla , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 6.0 219/862] ACPI: PCC: Fix Tx acknowledge in the PCC address space handler Date: Wed, 19 Oct 2022 10:25:06 +0200 Message-Id: <20221019083259.705947570@linuxfoundation.org> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221019083249.951566199@linuxfoundation.org> References: <20221019083249.951566199@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: linux-kernel@vger.kernel.org From: Huisong Li [ Upstream commit 18729106c26fb97d4c9ae63ba7aba9889a058dc4 ] Currently, mbox_client_txdone() is called from the PCC address space handler and that expects the user the Tx state machine to be controlled by the client which is not the case and the below warning is thrown: | PCCT: Client can't run the TX ticker Let the controller run the state machine and the end of Tx can be acknowledge by calling mbox_chan_txdone() instead. Fixes: 77e2a04745ff ("ACPI: PCC: Implement OperationRegion handler for the PCC Type 3 subtype") Signed-off-by: Huisong Li Reviewed-by: Sudeep Holla Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/acpi_pcc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/acpi_pcc.c b/drivers/acpi/acpi_pcc.c index 16ba875e3293..ee4ce5ba1fb2 100644 --- a/drivers/acpi/acpi_pcc.c +++ b/drivers/acpi/acpi_pcc.c @@ -121,7 +121,7 @@ acpi_pcc_address_space_handler(u32 function, acpi_physical_address addr, } } - mbox_client_txdone(data->pcc_chan->mchan, ret); + mbox_chan_txdone(data->pcc_chan->mchan, ret); memcpy_fromio(value, data->pcc_comm_addr, data->ctx.length); -- 2.35.1