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| author | Ingo Molnar <mingo@kernel.org> | 2016-10-16 11:31:39 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-10-16 11:31:39 +0200 |
| commit | 1d33369db25eb7f37b7a8bd22d736888b4501a9c (patch) | |
| tree | 116d764339be1bca928870151decbedc53a9e1d1 /drivers/dma/virt-dma.h | |
| parent | 23446cb66c073b827779e5eb3dec301623299b32 (diff) | |
| parent | 1001354ca34179f3db924eb66672442a173147dc (diff) | |
| download | talos-op-linux-1d33369db25eb7f37b7a8bd22d736888b4501a9c.tar.gz talos-op-linux-1d33369db25eb7f37b7a8bd22d736888b4501a9c.zip | |
Merge tag 'v4.9-rc1' into x86/urgent, to pick up updates
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/dma/virt-dma.h')
| -rw-r--r-- | drivers/dma/virt-dma.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/dma/virt-dma.h b/drivers/dma/virt-dma.h index d9731ca5e262..3f776a46a29c 100644 --- a/drivers/dma/virt-dma.h +++ b/drivers/dma/virt-dma.h @@ -45,6 +45,8 @@ static inline struct virt_dma_chan *to_virt_chan(struct dma_chan *chan) void vchan_dma_desc_free_list(struct virt_dma_chan *vc, struct list_head *head); void vchan_init(struct virt_dma_chan *vc, struct dma_device *dmadev); struct virt_dma_desc *vchan_find_desc(struct virt_dma_chan *, dma_cookie_t); +extern dma_cookie_t vchan_tx_submit(struct dma_async_tx_descriptor *); +extern int vchan_tx_desc_free(struct dma_async_tx_descriptor *); /** * vchan_tx_prep - prepare a descriptor @@ -55,8 +57,6 @@ struct virt_dma_desc *vchan_find_desc(struct virt_dma_chan *, dma_cookie_t); static inline struct dma_async_tx_descriptor *vchan_tx_prep(struct virt_dma_chan *vc, struct virt_dma_desc *vd, unsigned long tx_flags) { - extern dma_cookie_t vchan_tx_submit(struct dma_async_tx_descriptor *); - extern int vchan_tx_desc_free(struct dma_async_tx_descriptor *); unsigned long flags; dma_async_tx_descriptor_init(&vd->tx, &vc->chan); @@ -123,10 +123,8 @@ static inline void vchan_cyclic_callback(struct virt_dma_desc *vd) */ static inline struct virt_dma_desc *vchan_next_desc(struct virt_dma_chan *vc) { - if (list_empty(&vc->desc_issued)) - return NULL; - - return list_first_entry(&vc->desc_issued, struct virt_dma_desc, node); + return list_first_entry_or_null(&vc->desc_issued, + struct virt_dma_desc, node); } /** |
