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| author |   Peter Hurley <peter@hurleysoftware.com> | 2013-08-27 16:12:57 -0400 |
|---|---|---|
| committer |   Ben Skeggs <bskeggs@redhat.com> | 2013-11-08 15:36:03 +1000 |
| commit | ac51bb09837098c422a8825bc155ccd736b9632d (patch) | |
| tree | acea0f5016b1376a64ac42222655c8ef67f98153 /drivers/gpu/drm/nouveau/core/include/core/event.h | |
| parent | drm/nouveau/core: Move event index check from critical section (diff) | |
| download | linux-dev-ac51bb09837098c422a8825bc155ccd736b9632d.tar.xz linux-dev-ac51bb09837098c422a8825bc155ccd736b9632d.zip | |
drm/nouveau/core: Allow asymmetric nouveau_event_get/_put
Most nouveau event handlers have storage in 'static' containers
(structures with lifetimes nearly equivalent to the drm_device),
but are dangerously reused via nouveau_event_get/_put. For
example, if nouveau_event_get is called more than once for a
given handler, the event handler list will be corrupted.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/include/core/event.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/include/core/event.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/core/event.h b/drivers/gpu/drm/nouveau/core/include/core/event.h index ad4d8c283d5f..cb2f632cb3a5 100644 --- a/drivers/gpu/drm/nouveau/core/include/core/event.h +++ b/drivers/gpu/drm/nouveau/core/include/core/event.h @@ -5,8 +5,12 @@ #define NVKM_EVENT_DROP 0 #define NVKM_EVENT_KEEP 1 +/* nouveau_eventh.flags bit #s */ +#define NVKM_EVENT_ENABLE 0 + struct nouveau_eventh { struct list_head head; + unsigned long flags; void *priv; int (*func)(struct nouveau_eventh *, int index); }; |