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Subject: [dpdk-dev] [Bug 121] In ixgbe_tx_free_bufs function the variable
 free on stack is used before initialization
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https://bugs.dpdk.org/show_bug.cgi?id=3D121

            Bug ID: 121
           Summary: In ixgbe_tx_free_bufs function the variable free on
                    stack is used before initialization
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: CONFIRMED
          Severity: normal
          Priority: Normal
         Component: core
          Assignee: dev@dpdk.org
          Reporter: valentin.radulescu@enea.com
  Target Milestone: ---

static __rte_always_inline int
ixgbe_tx_free_bufs(struct ixgbe_tx_queue *txq)
{
....
    struct rte_mbuf *m, *free[RTE_IXGBE_TX_MAX_FREE_BUF_SZ];
....

       if (nb_free >=3D RTE_IXGBE_TX_MAX_FREE_BUF_SZ ||
            (nb_free > 0 && m->pool !=3D free[0]->pool)) { <---free[0] is f=
rom
the stack
            rte_mempool_put_bulk(free[0]->pool,
                         (void **)free, nb_free);
            nb_free =3D 0;
        }

        free[nb_free++] =3D m;  <-- free is set later
}

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