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Store the configuration when dmaengine_slave_config() is called. Signed-off-by: Frank Li --- include/linux/dmaengine.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 01d3e44e3cb426d9ad085eda1bc562ca7d266cb0..362a43c3e36e232b5a65ff78ba0= b692c0401e50c 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -432,6 +432,8 @@ struct dma_chan { char *dbg_client_name; #endif =20 + struct dma_slave_config config; + struct list_head device_node; struct dma_chan_percpu __percpu *local; int client_count; @@ -962,6 +964,8 @@ struct dma_device { static inline int dmaengine_slave_config(struct dma_chan *chan, struct dma_slave_config *config) { + chan->config =3D *config; + if (chan->device->device_config) return chan->device->device_config(chan, config); =20 --=20 2.34.1