[dpdk-stable] [dpdk-dev] [PATCH] net/qede: only access sw rx ring index for debug

[Jerin Jacob]

On Thu, Oct 3, 2019 at 11:59 PM Rasesh Mody <rmody at marvell.com> wrote:
>
> >From: David Marchand <david.marchand at redhat.com>
> >Sent: Friday, September 27, 2019 4:29 AM
> >
> >----------------------------------------------------------------------
> >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>
> >---
>
> Acked-by: Rasesh Mody <rmody at marvell.com>

Changed the subject to "net/qede: only access SW Rx ring index for
debug" to fix check-git-log.sh warning.

Applied to dpdk-next-net-mrvl/master. Thanks

> > 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
>