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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-01-11 12:01:17 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-01-12 22:31:17 +0300 |
| commit | 3846fd9b86001bea171943cc3bb9222cb6da6b42 (patch) | |
| tree | 4f7e6dfbf41fad6d5b1b72b8b85f3761c9a0b151 /drivers/gpu/drm/drm_atomic.c | |
| parent | fdf35a6b22247746a7053fc764d04218a9306f82 (diff) | |
| download | linux-3846fd9b86001bea171943cc3bb9222cb6da6b42.tar.xz | |
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).
Cc: Dave Airlie <airlied@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Lyude <lyude@redhat.com>
Reviewed-by: Lyude <lyude@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170111090117.5134-1-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
0 files changed, 0 insertions, 0 deletions