[RFC PATCH 21/27] net/intel: remove unnecessary flag clearing

[Bruce Richardson <bruce.richardson@intel.com>]

When cleaning the Tx ring, there is no need to zero out the done flag
from the completed entry. That flag will be automatically cleared when
the descriptor is next written. This gives a small performance benefit.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 drivers/net/intel/common/tx_scalar_fns.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/net/intel/common/tx_scalar_fns.h b/drivers/net/intel/common/tx_scalar_fns.h
index 95e9acbe60..cb45029bd7 100644
--- a/drivers/net/intel/common/tx_scalar_fns.h
+++ b/drivers/net/intel/common/tx_scalar_fns.h
@@ -51,13 +51,6 @@ ci_tx_xmit_cleanup(struct ci_tx_queue *txq)
 	else
 		nb_tx_to_clean = (uint16_t)(desc_to_clean_to - last_desc_cleaned);
 
-	/* The last descriptor to clean is done, so that means all the
-	 * descriptors from the last descriptor that was cleaned
-	 * up to the last descriptor with the RS bit set
-	 * are done. Only reset the threshold descriptor.
-	 */
-	txd[desc_to_clean_to].cmd_type_offset_bsz = 0;
-
 	/* Update the txq to reflect the last descriptor that was cleaned */
 	txq->last_desc_cleaned = desc_to_clean_to;
 	txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + nb_tx_to_clean);
-- 
2.51.0