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authorDaniel Vetter <daniel.vetter@ffwll.ch>2018-05-03 13:31:38 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2018-05-03 13:38:39 +0300
commit51f170a544bdb06d93316d8ff0814a52daa24a6c (patch)
tree658467e218931c8661b37373346ca76029fa4fc5 /drivers/dma-buf
parentbf3012ada1b2222e770de5c35c1bb16f73b3a01d (diff)
downloadlinux-51f170a544bdb06d93316d8ff0814a52daa24a6c.tar.xz
Revert 190c462d5be19ba622a82f5fd0625087c870a1e6..bf3012ada1b2222e770de5c35c1bb16f73b3a01d"
I shouldn't have pushed this, CI was right - I failed to remove the BUG_ON(!ops->wait); Reported-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/dma-buf')
-rw-r--r--drivers/dma-buf/dma-fence-array.c1
-rw-r--r--drivers/dma-buf/dma-fence.c23
-rw-r--r--drivers/dma-buf/sw_sync.c1
3 files changed, 9 insertions, 16 deletions
diff --git a/drivers/dma-buf/dma-fence-array.c b/drivers/dma-buf/dma-fence-array.c
index a8c254497251..dd1edfb27b61 100644
--- a/drivers/dma-buf/dma-fence-array.c
+++ b/drivers/dma-buf/dma-fence-array.c
@@ -104,6 +104,7 @@ const struct dma_fence_ops dma_fence_array_ops = {
.get_timeline_name = dma_fence_array_get_timeline_name,
.enable_signaling = dma_fence_array_enable_signaling,
.signaled = dma_fence_array_signaled,
+ .wait = dma_fence_default_wait,
.release = dma_fence_array_release,
};
EXPORT_SYMBOL(dma_fence_array_ops);
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index 30fcbe415ff4..4edb9fd3cf47 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -158,10 +158,7 @@ dma_fence_wait_timeout(struct dma_fence *fence, bool intr, signed long timeout)
return -EINVAL;
trace_dma_fence_wait_start(fence);
- if (fence->ops->wait)
- ret = fence->ops->wait(fence, intr, timeout);
- else
- ret = dma_fence_default_wait(fence, intr, timeout);
+ ret = fence->ops->wait(fence, intr, timeout);
trace_dma_fence_wait_end(fence);
return ret;
}
@@ -184,13 +181,6 @@ void dma_fence_release(struct kref *kref)
}
EXPORT_SYMBOL(dma_fence_release);
-/**
- * dma_fence_free - default release function for &dma_fence.
- * @fence: fence to release
- *
- * This is the default implementation for &dma_fence_ops.release. It calls
- * kfree_rcu() on @fence.
- */
void dma_fence_free(struct dma_fence *fence)
{
kfree_rcu(fence, rcu);
@@ -506,6 +496,11 @@ dma_fence_wait_any_timeout(struct dma_fence **fences, uint32_t count,
for (i = 0; i < count; ++i) {
struct dma_fence *fence = fences[i];
+ if (fence->ops->wait != dma_fence_default_wait) {
+ ret = -EINVAL;
+ goto fence_rm_cb;
+ }
+
cb[i].task = current;
if (dma_fence_add_callback(fence, &cb[i].base,
dma_fence_default_wait_cb)) {
@@ -565,7 +560,7 @@ dma_fence_init(struct dma_fence *fence, const struct dma_fence_ops *ops,
spinlock_t *lock, u64 context, unsigned seqno)
{
BUG_ON(!lock);
- BUG_ON(!ops || !ops->wait ||
+ BUG_ON(!ops || !ops->wait || !ops->enable_signaling ||
!ops->get_driver_name || !ops->get_timeline_name);
kref_init(&fence->refcount);
@@ -577,10 +572,6 @@ dma_fence_init(struct dma_fence *fence, const struct dma_fence_ops *ops,
fence->flags = 0UL;
fence->error = 0;
- if (!ops->enable_signaling)
- set_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
- &fence->flags);
-
trace_dma_fence_init(fence);
}
EXPORT_SYMBOL(dma_fence_init);
diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c
index 53c1d6d36a64..3d78ca89a605 100644
--- a/drivers/dma-buf/sw_sync.c
+++ b/drivers/dma-buf/sw_sync.c
@@ -188,6 +188,7 @@ static const struct dma_fence_ops timeline_fence_ops = {
.get_timeline_name = timeline_fence_get_timeline_name,
.enable_signaling = timeline_fence_enable_signaling,
.signaled = timeline_fence_signaled,
+ .wait = dma_fence_default_wait,
.release = timeline_fence_release,
.fence_value_str = timeline_fence_value_str,
.timeline_value_str = timeline_fence_timeline_value_str,