From patchwork Wed Sep 27 14:18:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 728004 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 4CDD9E80AB6 for ; Wed, 27 Sep 2023 14:19:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232231AbjI0OTr (ORCPT ); Wed, 27 Sep 2023 10:19:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53068 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232153AbjI0OTF (ORCPT ); Wed, 27 Sep 2023 10:19:05 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C82B912A; Wed, 27 Sep 2023 07:19:03 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A64EC433C8; Wed, 27 Sep 2023 14:19:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695824343; bh=R1tYu+zCjKRGxXsPNNRChzgkkzMhM2utM9Va0s9nexk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PUYHVpyfvSnS40OV7ujzUUWs1NNnTdFERjVV+dfpdgjuo741w80ZIvnhHiOJeq9Py hGc/6H5B8qBn6h8NQOE3BzRTNvYf2ct1o21vxvm64DlYW/jZrpDBSO86h8/zYE8qW6 hslwikUCqOEM+IHszk3y87vkxXdlk5IJOUDL4cOwj1BRlFvV6I1aauYg7770MGmuFl 52B5RiY/BUbxzffVNYSueH0ScfZDkJ5IDy7xJ/dSGl5ta2A3FHbjfz/oJfHs9+nT6Q PepkjZirRlZKyOV38PR5gWHx0zy7HUQJefPXpz1n8jI3pTDID1HGuUX09SKLFArZIB oAQzbFmn9iftQ== From: Damien Le Moal To: linux-ide@vger.kernel.org Cc: linux-scsi@vger.kernel.org, "Martin K . Petersen" , John Garry , Rodrigo Vivi , Paul Ausbeck , Kai-Heng Feng , Joe Breuer , Geert Uytterhoeven , Chia-Lin Kao Subject: [PATCH v8 19/23] ata: libata-core: Do not resume runtime suspended ports Date: Wed, 27 Sep 2023 23:18:24 +0900 Message-ID: <20230927141828.90288-20-dlemoal@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230927141828.90288-1-dlemoal@kernel.org> References: <20230927141828.90288-1-dlemoal@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org The scsi disk driver does not resume disks that have been runtime suspended by the user. To be consistent with this behavior, do the same for ata ports and skip the PM request in ata_port_pm_resume() if the port was already runtime suspended. With this change, it is no longer necessary to force the PM state of the port to ACTIVE as the PM core code will take care of that when handling runtime resume. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Tested-by: Chia-Lin Kao (AceLan) Tested-by: Geert Uytterhoeven Reviewed-by: Martin K. Petersen --- drivers/ata/libata-core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index df6ed386e6fc..58f03031a259 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5230,10 +5230,8 @@ static void ata_port_resume(struct ata_port *ap, pm_message_t mesg, static int ata_port_pm_resume(struct device *dev) { - ata_port_resume(to_ata_port(dev), PMSG_RESUME, true); - pm_runtime_disable(dev); - pm_runtime_set_active(dev); - pm_runtime_enable(dev); + if (!pm_runtime_suspended(dev)) + ata_port_resume(to_ata_port(dev), PMSG_RESUME, true); return 0; }