From patchwork Mon Sep 11 04:02:13 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: 721669 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 07421C71153 for ; Mon, 11 Sep 2023 04:03:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233645AbjIKEDB (ORCPT ); Mon, 11 Sep 2023 00:03:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53304 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231761AbjIKEC6 (ORCPT ); Mon, 11 Sep 2023 00:02:58 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E45F11BE; Sun, 10 Sep 2023 21:02:49 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05554C433C8; Mon, 11 Sep 2023 04:02:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694404969; bh=vqzkUUP3N9azAe/Qwg9XhX6L+Y6At/1NJvewATcW2EE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BYWLXbhPn2QrsFWKNB51Lzkis8wQ4SMoIpi7lvEGH5TKlfxokHXpzvKSlZcKLNrpg YmI14K5eNxd1OyHU4gQTLAwsLhLt9x00Uh1v8yGEMYdUbyKBRfQ6iuojFfmmrzhQnp ely+LSvhlY+dME2tp6/zjxv7dbqG4yPRKdHTd9kkVN8YMujaZRrJGk/9PcwJKWZHbj o0EiiXuhf7Fwq4zsLEqrVLEvajLVX06iImiTMx1269O3ZMcwXkpyxSgRnDFXfiuvIZ G3eqnXhSWOHGTdAnrTtLDgMBgLITLR2ojgM4nKjsLgtEW6EexSRAPni7OJCIuMtCEm 85ITMAAupkNCg== 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 Subject: [PATCH 15/19] ata: libata-core: Do not resume ports that have been runtime suspended Date: Mon, 11 Sep 2023 13:02:13 +0900 Message-ID: <20230911040217.253905-16-dlemoal@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230911040217.253905-1-dlemoal@kernel.org> References: <20230911040217.253905-1-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 for 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 --- 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 c4a32abc2e29..26e94edf5103 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5234,10 +5234,8 @@ 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; }