diff options
| author | Andreas Gruenbacher <[email protected]> | 2022-08-05 18:37:03 +0200 |
|---|---|---|
| committer | Andreas Gruenbacher <[email protected]> | 2022-08-05 18:37:03 +0200 |
| commit | 446279168e030fd0ed68e2bba336bef8bb3da352 (patch) | |
| tree | 0944d4dc64b07f74a6cf73d2ce803a789f8d786d /include/linux/dmaengine.h | |
| parent | 44dab005fd4298c209ea32ffda6131cad4358d21 (diff) | |
| parent | 6feaec81477af0390a41470cbd6b353f68dd853c (diff) | |
Merge part of branch 'for-next.instantiate' into for-next
Diffstat (limited to 'include/linux/dmaengine.h')
| -rw-r--r-- | include/linux/dmaengine.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 842d4f7ca752..b46b88e6aa0d 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -870,7 +870,6 @@ struct dma_device { struct device *dev; struct module *owner; struct ida chan_ida; - struct mutex chan_mutex; /* to protect chan_ida */ u32 src_addr_widths; u32 dst_addr_widths; @@ -1031,6 +1030,14 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma( return chan->device->device_prep_interleaved_dma(chan, xt, flags); } +/** + * dmaengine_prep_dma_memset() - Prepare a DMA memset descriptor. + * @chan: The channel to be used for this descriptor + * @dest: Address of buffer to be set + * @value: Treated as a single byte value that fills the destination buffer + * @len: The total size of dest + * @flags: DMA engine flags + */ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memset( struct dma_chan *chan, dma_addr_t dest, int value, size_t len, unsigned long flags) |