linux-kernel - [PATCH 4.18 64/88] drm/nouveau: Remove duplicate poll_enable() in pmops_runtime

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Date:   Thu, 27 Sep 2018 11:03:45 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Lyude Paul <lyude@...hat.com>,
        Karol Herbst <kherbst@...hat.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Lukas Wunner <lukas@...ner.de>, Ben Skeggs <bskeggs@...hat.com>
Subject: [PATCH 4.18 64/88] drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend()

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lyude Paul <lyude@...hat.com>

commit 611ce855420a6e8b9ff47af5f47431d52c7709f8 upstream.

Since actual hotplug notifications don't get disabled until
nouveau_display_fini() is called, all this will do is cause any hotplugs
that happen between this drm_kms_helper_poll_disable() call and the
actual hotplug disablement to potentially be dropped if ACPI isn't
around to help us.

Signed-off-by: Lyude Paul <lyude@...hat.com>
Acked-by: Karol Herbst <kherbst@...hat.com>
Acked-by: Daniel Vetter <daniel@...ll.ch>
Cc: stable@...r.kernel.org
Cc: Lukas Wunner <lukas@...ner.de>
Signed-off-by: Ben Skeggs <bskeggs@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/nouveau/nouveau_drm.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -835,7 +835,6 @@ nouveau_pmops_runtime_suspend(struct dev
 		return -EBUSY;
 	}
 
-	drm_kms_helper_poll_disable(drm_dev);
 	nouveau_switcheroo_optimus_dsm();
 	ret = nouveau_do_suspend(drm_dev, true);
 	pci_save_state(pdev);