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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CA52ECA0ED3 for ; Mon, 2 Sep 2024 06:02:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=RLT+ZXlJz8SWaaahByoLRZfSQKkmdiE+KQxWWpCGtXw=; b=QD341Fbex7PzxKg4oA/rRam7N2 x23ODNju9GdQeDT9VGFDiW2lXuwAZ6OTT+U7XHAZuKR1UaZyXXIKUDEgSxRUwvczkHtaJ5SOPRo54 iPjqoUcTW1zvbtDVvv5rTXPeH8v4UGI5LfklAf1TncApb5T0tybeLOmxM7fyFll+Nc82SzOFoTuDT Q54G76xJx/sdjjQqds0bBh0Sam/5qC2osKmhbrZzHSS/UlvqV7ozh6IDKv03XRs3Zi+Dh0wpkJFpY BimqjS2ackzcTIwsOb4xNsWMTPElPZXCj9JyD2HMDqCTL1/PPOVIEsvBmLwe0wKCMATDCQCYZlidU nU+Tn7ow==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sl08i-0000000D5Ny-0IvO; Mon, 02 Sep 2024 06:02:12 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sl07m-0000000D585-3fCc; Mon, 02 Sep 2024 06:01:16 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 16153A416B6; Mon, 2 Sep 2024 06:01:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4953AC4CEC2; Mon, 2 Sep 2024 06:01:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1725256873; bh=uFqYDAGst+R76BzrFXSqxQfFeaOgB/jwHSV/x4bw5xE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=XcGT8ny+K7EZPFWj7plmSyaw+3DUmYHQrHQM/nEmQbnG+VvCxd3U3HDIZTeX7YiRL 1biMvmNuYBWWnQkGh0oHiWSUlCqiK7KZ7mv2ol4roKIvw1j5SP2yZJAPHRBUHL3qRF ShEo26DaXuTOaDOPfo65oFbxkvB50L+QG9bfwOUg= Date: Mon, 2 Sep 2024 08:01:10 +0200 From: Greg Kroah-Hartman To: Yenchia Chen Cc: stable@vger.kernel.org, "Rafael J. Wysocki" , Pavel Machek , Len Brown , Matthias Brugger , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: Re: [PATCH 5.15 0/1] pm, restore async device resume optimization Message-ID: <2024090220-uncaring-pretext-4391@gregkh> References: <20240902031047.9865-1-yenchia.chen@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240902031047.9865-1-yenchia.chen@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240901_230115_000928_3126839F X-CRM114-Status: GOOD ( 12.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Sep 02, 2024 at 11:10:44AM +0800, Yenchia Chen wrote: > From: "yenchia.chen" > > We have met a deadlock issue on our device when resuming. > After applying this patch which is picked from mainline, issue solved. > We'd like to backport to 5.15.y and could you help to review? thanks. > > [ Upstream commit 3e999770ac1c7c31a70685dd5b88e89473509e9c ] For obvious reasons (and as per the documentation), we can't take commits that are not also in all newer kernel releases, otherwise you would have a regression if you moved to a newer kernel, right? Please submit a series for all affected releases if you wish for a patch to be applied to the trees. thanks, greg k-h