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| author | Dave Airlie <airlied@redhat.com> | 2017-01-27 12:04:08 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2017-01-27 12:04:08 +1000 |
| commit | c4d79c22015564a9d922715434a0ec09d1deee30 (patch) | |
| tree | 0244663e07ce8575d6060d0f1dae9d8fef30e829 /include/drm/drm_crtc_helper.h | |
| parent | b0df0b251b25b0bf89ef3e518330fcac300add86 (diff) | |
| download | linux-0-day-c4d79c22015564a9d922715434a0ec09d1deee30.tar.gz linux-0-day-c4d79c22015564a9d922715434a0ec09d1deee30.tar.xz | |
Reinstate "drm/probe-helpers: Drop locking from poll_enable""
This reverts commit 54a07c7bb0da0343734c78212bbe9f3735394962,
and reinstates the original.
[airlied: this might be a bad plan for git].
commit 3846fd9b86001bea171943cc3bb9222cb6da6b42
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Jan 11 10:01:17 2017 +0100
drm/probe-helpers: Drop locking from poll_enable
It was only needed to protect the connector_list walking, see
commit 8c4ccc4ab6f64e859d4ff8d7c02c2ed2e956e07f
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu Jul 9 23:44:26 2015 +0200
drm/probe-helper: Grab mode_config.mutex in poll_init/enable
Unfortunately the commit message of that patch fails to mention that
the new locking check was for the connector_list.
But that requirement disappeared in
commit c36a3254f7857f1ad9badbe3578ccc92be541a8e
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu Dec 15 16:58:43 2016 +0100
drm: Convert all helpers to drm_connector_list_iter
and so we can drop this again.
This fixes a locking inversion on nouveau, where the rpm code needs to
re-enable. But in other places the rpm_get() calls are nested within
the big modeset locks.
While at it, also improve the kerneldoc for these two functions a
notch.
v2: Update the kerneldoc even more to explain that these functions
can't be called concurrently, or bad things happen (Chris).
Diffstat (limited to 'include/drm/drm_crtc_helper.h')
| -rw-r--r-- | include/drm/drm_crtc_helper.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h index 982c299e435a0..d026f5017c33c 100644 --- a/include/drm/drm_crtc_helper.h +++ b/include/drm/drm_crtc_helper.h @@ -73,6 +73,5 @@ extern void drm_kms_helper_hotplug_event(struct drm_device *dev); extern void drm_kms_helper_poll_disable(struct drm_device *dev); extern void drm_kms_helper_poll_enable(struct drm_device *dev); -extern void drm_kms_helper_poll_enable_locked(struct drm_device *dev); #endif |