From 5943243914b9fed8e26edcb9d45421721a5e3576 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Thu, 9 Oct 2025 16:18:53 +0200 Subject: [PATCH] dma-buf: use inline lock for the dma-fence-array MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Using the inline lock is now the recommended way for dma_fence implementations. So use this approach for the framework's internal fences as well. Also saves about 4 bytes for the external spinlock. Signed-off-by: Christian König Reviewed-by: Tvrtko Ursulin Reviewed-by: Philipp Stanner Reviewed-by: Boris Brezillon Link: https://lore.kernel.org/r/20260219160822.1529-8-christian.koenig@amd.com --- drivers/dma-buf/dma-fence-array.c | 5 ++--- include/linux/dma-fence-array.h | 1 - 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/dma-buf/dma-fence-array.c b/drivers/dma-buf/dma-fence-array.c index 37e2c6179d779..cd970eceaefb1 100644 --- a/drivers/dma-buf/dma-fence-array.c +++ b/drivers/dma-buf/dma-fence-array.c @@ -204,9 +204,8 @@ void dma_fence_array_init(struct dma_fence_array *array, array->num_fences = num_fences; - spin_lock_init(&array->lock); - dma_fence_init(&array->base, &dma_fence_array_ops, &array->lock, - context, seqno); + dma_fence_init(&array->base, &dma_fence_array_ops, NULL, context, + seqno); init_irq_work(&array->work, irq_dma_fence_array_work); atomic_set(&array->num_pending, signal_on_any ? 1 : num_fences); diff --git a/include/linux/dma-fence-array.h b/include/linux/dma-fence-array.h index 079b3dec0a16b..370b3d2bba371 100644 --- a/include/linux/dma-fence-array.h +++ b/include/linux/dma-fence-array.h @@ -38,7 +38,6 @@ struct dma_fence_array_cb { struct dma_fence_array { struct dma_fence base; - spinlock_t lock; unsigned num_fences; atomic_t num_pending; struct dma_fence **fences; -- 2.53.0