[dpdk-dev] [PATCH] net/qede: only access sw rx ring index for debug
David Marchand
david.marchand at redhat.com
Fri Sep 27 13:28:49 CEST 2019
Caught by clang, this idx value is only used for a debug message when
the mbufs allocation fails.
No need to use idx as a temporary storage.
Fixes: 8f2312474529 ("net/qede: fix performance bottleneck in Rx path")
Cc: stable at dpdk.org
Signed-off-by: David Marchand <david.marchand at redhat.com>
---
drivers/net/qede/qede_rxtx.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/qede/qede_rxtx.c b/drivers/net/qede/qede_rxtx.c
index c38cbb9..1fbeba2 100644
--- a/drivers/net/qede/qede_rxtx.c
+++ b/drivers/net/qede/qede_rxtx.c
@@ -46,8 +46,6 @@ static inline int qede_alloc_rx_bulk_mbufs(struct qede_rx_queue *rxq, int count)
int i, ret = 0;
uint16_t idx;
- idx = rxq->sw_rx_prod & NUM_RX_BDS(rxq);
-
if (count > QEDE_MAX_BULK_ALLOC_COUNT)
count = QEDE_MAX_BULK_ALLOC_COUNT;
@@ -56,7 +54,9 @@ static inline int qede_alloc_rx_bulk_mbufs(struct qede_rx_queue *rxq, int count)
PMD_RX_LOG(ERR, rxq,
"Failed to allocate %d rx buffers "
"sw_rx_prod %u sw_rx_cons %u mp entries %u free %u",
- count, idx, rxq->sw_rx_cons & NUM_RX_BDS(rxq),
+ count,
+ rxq->sw_rx_prod & NUM_RX_BDS(rxq),
+ rxq->sw_rx_cons & NUM_RX_BDS(rxq),
rte_mempool_avail_count(rxq->mb_pool),
rte_mempool_in_use_count(rxq->mb_pool));
return -ENOMEM;
--
1.8.3.1
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