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path: root/drivers/dma/virt-dma.h
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Diffstat (limited to 'drivers/dma/virt-dma.h')
-rw-r--r--drivers/dma/virt-dma.h13
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/dma/virt-dma.h b/drivers/dma/virt-dma.h
index 189e75dbcb15..181b95267866 100644
--- a/drivers/dma/virt-dma.h
+++ b/drivers/dma/virt-dma.h
@@ -29,7 +29,6 @@ struct virt_dma_chan {
spinlock_t lock;
/* protected by vc.lock */
- struct list_head desc_allocated;
struct list_head desc_submitted;
struct list_head desc_issued;
struct list_head desc_completed;
@@ -56,16 +55,11 @@ static inline struct dma_async_tx_descriptor *vchan_tx_prep(struct virt_dma_chan
struct virt_dma_desc *vd, unsigned long tx_flags)
{
extern dma_cookie_t vchan_tx_submit(struct dma_async_tx_descriptor *);
- unsigned long flags;
dma_async_tx_descriptor_init(&vd->tx, &vc->chan);
vd->tx.flags = tx_flags;
vd->tx.tx_submit = vchan_tx_submit;
- spin_lock_irqsave(&vc->lock, flags);
- list_add_tail(&vd->node, &vc->desc_allocated);
- spin_unlock_irqrestore(&vc->lock, flags);
-
return &vd->tx;
}
@@ -128,8 +122,7 @@ static inline struct virt_dma_desc *vchan_next_desc(struct virt_dma_chan *vc)
}
/**
- * vchan_get_all_descriptors - obtain all allocated, submitted and issued
- * descriptors
+ * vchan_get_all_descriptors - obtain all submitted and issued descriptors
* vc: virtual channel to get descriptors from
* head: list of descriptors found
*
@@ -141,7 +134,6 @@ static inline struct virt_dma_desc *vchan_next_desc(struct virt_dma_chan *vc)
static inline void vchan_get_all_descriptors(struct virt_dma_chan *vc,
struct list_head *head)
{
- list_splice_tail_init(&vc->desc_allocated, head);
list_splice_tail_init(&vc->desc_submitted, head);
list_splice_tail_init(&vc->desc_issued, head);
list_splice_tail_init(&vc->desc_completed, head);
@@ -149,14 +141,11 @@ static inline void vchan_get_all_descriptors(struct virt_dma_chan *vc,
static inline void vchan_free_chan_resources(struct virt_dma_chan *vc)
{
- struct virt_dma_desc *vd;
unsigned long flags;
LIST_HEAD(head);
spin_lock_irqsave(&vc->lock, flags);
vchan_get_all_descriptors(vc, &head);
- list_for_each_entry(vd, &head, node)
- async_tx_clear_ack(&vd->tx);
spin_unlock_irqrestore(&vc->lock, flags);
vchan_dma_desc_free_list(vc, &head);