[PATCH v4 1/2] net/ice: remove malloc call for admin queue msg

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

The max message size is defined as 4k, so we don't need a special
malloc/free (and especially not rte_malloc/rte_free) for each call into
the function - especially if no data is present. Replace the malloc
calls with a local memory buffer instead.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 drivers/net/intel/ice/ice_ethdev.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
index 0d6b030536..a59ca2e047 100644
--- a/drivers/net/intel/ice/ice_ethdev.c
+++ b/drivers/net/intel/ice/ice_ethdev.c
@@ -1440,17 +1440,14 @@ ice_handle_aq_msg(struct rte_eth_dev *dev)
 {
 	struct ice_hw *hw = ICE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct ice_ctl_q_info *cq = &hw->adminq;
-	struct ice_rq_event_info event;
+	unsigned char buf[ICE_AQ_MAX_BUF_LEN] = {0};
+	struct ice_rq_event_info event = {
+		.msg_buf = buf,
+		.buf_len = sizeof(buf),
+	};
 	uint16_t pending, opcode;
 	int ret;

-	event.buf_len = ICE_AQ_MAX_BUF_LEN;
-	event.msg_buf = rte_zmalloc(NULL, event.buf_len, 0);
-	if (!event.msg_buf) {
-		PMD_DRV_LOG(ERR, "Failed to allocate mem");
-		return;
-	}
-
 	pending = 1;
 	while (pending) {
 		ret = ice_clean_rq_elem(hw, cq, &event, &pending);
@@ -1477,7 +1474,6 @@ ice_handle_aq_msg(struct rte_eth_dev *dev)
 			break;
 		}
 	}
-	rte_free(event.msg_buf);
 }
 #endif

--
2.51.0