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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Hans de Goede <hdegoede@redhat.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        Sasha Levin <sashal@kernel.org>,
        Justin Forbes <jmforbes@linuxtx.org>,
        Mark Pearson <markpearson@lenovo.com>
Subject: [PATCH 5.4 33/33] Revert "ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE"
Date:   Thu, 10 Mar 2022 15:19:34 +0100
Message-Id: <20220310140809.711995140@linuxfoundation.org>
In-Reply-To: <20220310140808.741682643@linuxfoundation.org>
References: <20220310140808.741682643@linuxfoundation.org>
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit 9d09cb110868f027d015fbc6c64ba1e45a69a192 which is
commit dc0075ba7f387fe4c48a8c674b11ab6f374a6acc upstream.

It's been reported to cause problems with a number of Fedora and Arch
Linux users, so drop it for now until that is resolved.

Link: https://lore.kernel.org/r/CAJZ5v0gE52NT=4kN4MkhV3Gx=M5CeMGVHOF0jgTXDb5WwAMs_Q@mail.gmail.com
Link: https://lore.kernel.org/r/31b9d1cd-6a67-218b-4ada-12f72e6f00dc@redhat.com
Reported-by: Hans de Goede <hdegoede@redhat.com>
Reported-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Justin Forbes <jmforbes@linuxtx.org>
Cc: Mark Pearson <markpearson@lenovo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/ec.c    |   10 ----------
 drivers/acpi/sleep.c |   14 ++++++++++----
 2 files changed, 10 insertions(+), 14 deletions(-)

--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -2003,16 +2003,6 @@ bool acpi_ec_dispatch_gpe(void)
 		return true;
 
 	/*
-	 * Cancel the SCI wakeup and process all pending events in case there
-	 * are any wakeup ones in there.
-	 *
-	 * Note that if any non-EC GPEs are active at this point, the SCI will
-	 * retrigger after the rearming in acpi_s2idle_wake(), so no events
-	 * should be missed by canceling the wakeup here.
-	 */
-	pm_system_cancel_wakeup();
-
-	/*
 	 * Dispatch the EC GPE in-band, but do not report wakeup in any case
 	 * to allow the caller to process events properly after that.
 	 */
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -1003,13 +1003,19 @@ static bool acpi_s2idle_wake(void)
 		if (acpi_check_wakeup_handlers())
 			return true;
 
-		/*
-		 * Check non-EC GPE wakeups and if there are none, cancel the
-		 * SCI-related wakeup and dispatch the EC GPE.
-		 */
+		/* Check non-EC GPE wakeups and dispatch the EC GPE. */
 		if (acpi_ec_dispatch_gpe())
 			return true;
 
+		/*
+		 * Cancel the SCI wakeup and process all pending events in case
+		 * there are any wakeup ones in there.
+		 *
+		 * Note that if any non-EC GPEs are active at this point, the
+		 * SCI will retrigger after the rearming below, so no events
+		 * should be missed by canceling the wakeup here.
+		 */
+		pm_system_cancel_wakeup();
 		acpi_os_wait_events_complete();
 
 		/*