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From: Lukas Wunner <lukas@wunner.de>
To: Egbert Eich <eich@suse.com>
Cc: Egbert Eich <eich@suse.de>,
	Daniel Vetter <daniel.vetter@ffwll.ch>,
	intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/4] drm: Add a non-locking version of drm_kms_helper_poll_enable().
Date: Wed, 2 Sep 2015 00:31:07 +0200	[thread overview]
Message-ID: <20150901223107.GA3567@wunner.de> (raw)
In-Reply-To: <21990.8779.674094.883043@linux-qknr.fritz.box>

Hi Egbert,

On Wed, Sep 02, 2015 at 12:10:19AM +0200, Egbert Eich wrote:
> Lukas Wunner writes:
>  > On Tue, Sep 01, 2015 at 10:21:32PM +0200, Egbert Eich wrote:
>  > > drm_kms_helper_poll_enable() was converted to lock the mode_config
>  > > mutex in commit 8c4ccc4ab6f64e859d4ff8d7c02c2ed2e956e07f
>  > > ("drm/probe-helper: Grab mode_config.mutex in poll_init/enable").
>  > > 
>  > > This disregarded the cases where this function is called from a context
>  > > where this mutex is already locked.
>  > 
>  > Which ones would that be?
> 
> Have you missed the next patch in the series?

Sorry, I should have asked more precisely: Is this the only one?
If so it may make sense to modify i915_hotplug_work_func or
intel_hpd_irq_storm_disable instead.

Best regards,

Lukas
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  reply	other threads:[~2015-09-01 22:31 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-01 20:21 [PATCH 0/4] Fix numerous issues with HPDstorm handling Egbert Eich
2015-09-01 20:21 ` [PATCH 1/4] drm: Add a non-locking version of drm_kms_helper_poll_enable() Egbert Eich
2015-09-01 21:27   ` Lukas Wunner
2015-09-01 22:10     ` Egbert Eich
2015-09-01 22:31       ` Lukas Wunner [this message]
2015-09-02  4:57         ` Egbert Eich
2015-09-01 22:50     ` Egbert Eich
2015-09-02 11:57   ` Daniel Vetter
2015-09-01 20:21 ` [PATCH 2/4] drm/i915: Call " Egbert Eich
2015-09-02 11:58   ` Daniel Vetter
2015-09-23 14:13     ` [PATCH 1/2] drm: Add a non-locking version of drm_kms_helper_poll_enable(), v2 Egbert Eich
2015-09-23 14:13       ` [PATCH 2/2] drm/i915: Call " Egbert Eich
2015-09-23 14:50       ` [PATCH 1/2] drm: Add a " Daniel Vetter
2015-09-24 12:46         ` Jani Nikula
2015-09-25  6:00           ` Egbert Eich
2015-09-25  7:52             ` Jani Nikula
2015-09-29 14:35               ` Jani Nikula
2015-09-30  8:38         ` Jani Nikula
2015-09-01 20:21 ` [PATCH 3/4] drm/i915: Use the correct hpd_status list for non-G4xx/VLV Egbert Eich
2015-09-02 12:00   ` Daniel Vetter
2015-09-02 12:25     ` Imre Deak
2015-09-02 13:42       ` Jani Nikula
2015-09-01 20:21 ` [PATCH 4/4] drm/i915: Avoid race of intel_crt_detect_hotplug() with HPD interrupt Egbert Eich
2015-09-02 12:06   ` Daniel Vetter
2015-09-02 14:19     ` Egbert Eich
2015-09-02 14:32       ` Jani Nikula
2015-09-02 14:58         ` Egbert Eich
2015-09-02 14:46       ` Daniel Vetter
2015-09-02 15:17         ` Egbert Eich
2015-09-23 14:15         ` [PATCH] drm/i915: Avoid race of intel_crt_detect_hotplug() with HPD interrupt, v2 Egbert Eich
2015-09-23 14:57           ` Daniel Vetter
2015-09-23 15:43             ` Egbert Eich
2015-09-25  6:09               ` [PATCH] drm/i915: On reset/suspend disable hpd pins & cancel pending delayed work Egbert Eich
2015-09-25 12:29                 ` Ville Syrjälä
2015-09-28  7:36                   ` Daniel Vetter

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