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Unfamilar with the merge flows to dma-buf subsystem. Do you merge this into a dma-buf branch that we can then pick up in 6.12? Matt > > > --- > > drivers/dma-buf/dma-fence-array.c | 78 ++++++++++++++++++++++--------- > > include/linux/dma-fence-array.h | 6 +++ > > 2 files changed, 63 insertions(+), 21 deletions(-) > > > > diff --git a/drivers/dma-buf/dma-fence-array.c b/drivers/dma-buf/dma-fence-array.c > > index c74ac197d5fe..0659e6b29b3c 100644 > > --- a/drivers/dma-buf/dma-fence-array.c > > +++ b/drivers/dma-buf/dma-fence-array.c > > @@ -144,37 +144,38 @@ const struct dma_fence_ops dma_fence_array_ops = { > > EXPORT_SYMBOL(dma_fence_array_ops); > > /** > > - * dma_fence_array_create - Create a custom fence array > > + * dma_fence_array_alloc - Allocate a custom fence array > > + * @num_fences: [in] number of fences to add in the array > > + * > > + * Return dma fence array on success, NULL on failure > > + */ > > +struct dma_fence_array *dma_fence_array_alloc(int num_fences) > > +{ > > + struct dma_fence_array *array; > > + > > + return kzalloc(struct_size(array, callbacks, num_fences), GFP_KERNEL); > > +} > > +EXPORT_SYMBOL(dma_fence_array_alloc); > > + > > +/** > > + * dma_fence_array_init - Arm a custom fence array > > + * @array: [in] dma fence array to arm > > * @num_fences: [in] number of fences to add in the array > > * @fences: [in] array containing the fences > > * @context: [in] fence context to use > > * @seqno: [in] sequence number to use > > * @signal_on_any: [in] signal on any fence in the array > > * > > - * Allocate a dma_fence_array object and initialize the base fence with > > - * dma_fence_init(). > > - * In case of error it returns NULL. > > - * > > - * The caller should allocate the fences array with num_fences size > > - * and fill it with the fences it wants to add to the object. Ownership of this > > - * array is taken and dma_fence_put() is used on each fence on release. > > - * > > - * If @signal_on_any is true the fence array signals if any fence in the array > > - * signals, otherwise it signals when all fences in the array signal. > > + * Implementation of @dma_fence_array_create without allocation. Useful to arm a > > + * preallocated dma fence fence in the path of reclaim or dma fence signaling. > > */ > > -struct dma_fence_array *dma_fence_array_create(int num_fences, > > - struct dma_fence **fences, > > - u64 context, unsigned seqno, > > - bool signal_on_any) > > +void dma_fence_array_init(struct dma_fence_array *array, > > + int num_fences, struct dma_fence **fences, > > + u64 context, unsigned seqno, > > + bool signal_on_any) > > { > > - struct dma_fence_array *array; > > - > > WARN_ON(!num_fences || !fences); > > - array = kzalloc(struct_size(array, callbacks, num_fences), GFP_KERNEL); > > - if (!array) > > - return NULL; > > - > > array->num_fences = num_fences; > > spin_lock_init(&array->lock); > > @@ -200,6 +201,41 @@ struct dma_fence_array *dma_fence_array_create(int num_fences, > > */ > > while (num_fences--) > > WARN_ON(dma_fence_is_container(fences[num_fences])); > > +} > > +EXPORT_SYMBOL(dma_fence_array_init); > > + > > +/** > > + * dma_fence_array_create - Create a custom fence array > > + * @num_fences: [in] number of fences to add in the array > > + * @fences: [in] array containing the fences > > + * @context: [in] fence context to use > > + * @seqno: [in] sequence number to use > > + * @signal_on_any: [in] signal on any fence in the array > > + * > > + * Allocate a dma_fence_array object and initialize the base fence with > > + * dma_fence_init(). > > + * In case of error it returns NULL. > > + * > > + * The caller should allocate the fences array with num_fences size > > + * and fill it with the fences it wants to add to the object. Ownership of this > > + * array is taken and dma_fence_put() is used on each fence on release. > > + * > > + * If @signal_on_any is true the fence array signals if any fence in the array > > + * signals, otherwise it signals when all fences in the array signal. > > + */ > > +struct dma_fence_array *dma_fence_array_create(int num_fences, > > + struct dma_fence **fences, > > + u64 context, unsigned seqno, > > + bool signal_on_any) > > +{ > > + struct dma_fence_array *array; > > + > > + array = dma_fence_array_alloc(num_fences); > > + if (!array) > > + return NULL; > > + > > + dma_fence_array_init(array, num_fences, fences, > > + context, seqno, signal_on_any); > > return array; > > } > > diff --git a/include/linux/dma-fence-array.h b/include/linux/dma-fence-array.h > > index 29c5650c1038..079b3dec0a16 100644 > > --- a/include/linux/dma-fence-array.h > > +++ b/include/linux/dma-fence-array.h > > @@ -79,6 +79,12 @@ to_dma_fence_array(struct dma_fence *fence) > > for (index = 0, fence = dma_fence_array_first(head); fence; \ > > ++(index), fence = dma_fence_array_next(head, index)) > > +struct dma_fence_array *dma_fence_array_alloc(int num_fences); > > +void dma_fence_array_init(struct dma_fence_array *array, > > + int num_fences, struct dma_fence **fences, > > + u64 context, unsigned seqno, > > + bool signal_on_any); > > + > > struct dma_fence_array *dma_fence_array_create(int num_fences, > > struct dma_fence **fences, > > u64 context, unsigned seqno, >