[PATCH v3 09/15] dmaengine: Remove last, used from dma_tx_state

Ben Walker
2022-06-22T18:54:21Z

Nothing uses these and they don't convey usable information.

Signed-off-by: Ben Walker <benjamin.walker@intel.com>
---
drivers/dma/dmaengine.h | 4 ----
include/linux/dmaengine.h | 4 ----
2 files changed, 8 deletions(-)

diff --git a/drivers/dma/dmaengine.h b/drivers/dma/dmaengine.h
index e72876a512a39..08c7bd7cfc229 100644
--- a/drivers/dma/dmaengine.h
+++ b/drivers/dma/dmaengine.h
@@ -74,8 +74,6 @@ static inline enum dma_status dma_cookie_status(struct dma_chan *chan,
complete = chan->completed_cookie;
barrier();
if (state) {
- state->last = complete;
- state->used = used;
state->residue = 0;
state->in_flight_bytes = 0;
}
@@ -96,8 +94,6 @@ static inline void dma_set_tx_state(struct dma_tx_state *st,
if (!st)
return;

- st->last = last;
- st->used = used;
st->residue = residue;
}

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index c34f21d19c423..e3e5311b6bb64 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -716,16 +716,12 @@ static inline struct dma_async_tx_descriptor *txd_next(struct dma_async_tx_descr
/**
* struct dma_tx_state - filled in to report the status of
* a transfer.
- * @last: last completed DMA cookie
- * @used: last issued DMA cookie (i.e. the one in progress)
* @residue: the remaining number of bytes left to transmit
* on the selected transfer for states DMA_IN_PROGRESS and
* DMA_PAUSED if this is implemented in the driver, else 0
* @in_flight_bytes: amount of data in bytes cached by the DMA.
*/
struct dma_tx_state {
- dma_cookie_t last;
- dma_cookie_t used;
u32 residue;
u32 in_flight_bytes;
};
--
2.35.1