From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758757AbdENAEg (ORCPT ); Sat, 13 May 2017 20:04:36 -0400 Received: from cloudserver094114.home.net.pl ([79.96.170.134]:60287 "EHLO cloudserver094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756164AbdENAEb (ORCPT ); Sat, 13 May 2017 20:04:31 -0400 From: "Rafael J. Wysocki" To: Linux PM , Linux ACPI Cc: LKML , Mika Westerberg , Srinivas Pandruvada , David Box Subject: [PATCH 1/3] PM / wakeup: Fix up wakeup_source_report_event() Date: Sun, 14 May 2017 01:52:22 +0200 Message-ID: <3528950.icdapGkanb@aspire.rjw.lan> User-Agent: KMail/4.14.10 (Linux/4.11.0-rc6+; KDE/4.14.9; x86_64; ; ) In-Reply-To: <2169867.RZcCZmJK9B@aspire.rjw.lan> References: <2169867.RZcCZmJK9B@aspire.rjw.lan> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rafael J. Wysocki Commit 8a537ece3d94 (PM / wakeup: Integrate mechanism to abort transitions in progress) modified wakeup_source_report_event() and wakeup_source_activate() to make it possible to call pm_system_wakeup() from the latter if so indicated by the caller of the former (via a new function argument added by that commit), but it overlooked the fact that in some situations wakeup_source_report_event() is called to signal a "hard" event (ie. such that should abort a system suspend in progress) after pm_stay_awake() has been called for the same wakeup source object, in which case the pm_system_wakeup() will not trigger. To work around this issue, modify wakeup_source_activate() and wakeup_source_report_event() again so that pm_system_wakeup() is called by the latter directly (if its last argument is true), in which case the additional argument does not need to be passed to wakeup_source_activate() any more, so drop it from there. Fixes: 8a537ece3d94 (PM / wakeup: Integrate mechanism to abort transitions in progress) Reported-by: David E. Box Signed-off-by: Rafael J. Wysocki --- drivers/base/power/wakeup.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) Index: linux-pm/drivers/base/power/wakeup.c =================================================================== --- linux-pm.orig/drivers/base/power/wakeup.c +++ linux-pm/drivers/base/power/wakeup.c @@ -512,13 +512,12 @@ static bool wakeup_source_not_registered /** * wakup_source_activate - Mark given wakeup source as active. * @ws: Wakeup source to handle. - * @hard: If set, abort suspends in progress and wake up from suspend-to-idle. * * Update the @ws' statistics and, if @ws has just been activated, notify the PM * core of the event by incrementing the counter of of wakeup events being * processed. */ -static void wakeup_source_activate(struct wakeup_source *ws, bool hard) +static void wakeup_source_activate(struct wakeup_source *ws) { unsigned int cec; @@ -526,9 +525,6 @@ static void wakeup_source_activate(struc "unregistered wakeup source\n")) return; - if (hard) - pm_system_wakeup(); - ws->active = true; ws->active_count++; ws->last_time = ktime_get(); @@ -554,7 +550,10 @@ static void wakeup_source_report_event(s ws->wakeup_count++; if (!ws->active) - wakeup_source_activate(ws, hard); + wakeup_source_activate(ws); + + if (hard) + pm_system_wakeup(); } /**