[dpdk-dev] [PATCH] net/ixgbe: fix build for gcc 4.8.5

[Ye Xiaolong]

On 01/14, Ferruh Yigit wrote:
>Build error:
>  In function ‘ixgbe_recv_pkts_lro_bulk_alloc’:
>../drivers/net/ixgbe/ixgbe_rxtx.c:2209:24:
>  error: ‘next_sc_entry’ may be used uninitialized in this function
>  [-Werror=maybe-uninitialized]
>    next_sc_entry->fbuf = first_seg;
>                        ^
>http://mails.dpdk.org/archives/test-report/2020-January/113891.html
>
>This is a compiler false positive and error not seen by newer compilers,
>or clang but to fix the warning initializing the complained variable.
>
>According git bisect, no idea how:
>Fixes: 8a2e7ce976fd ("net/ixgbe: avoid multiple definitions of bool")
>
>Reported-by: Maxime Coquelin <maxime.coquelin at redhat.com>
>Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
>---
>Cc: dharmik.thakkar at arm.com
>---
> drivers/net/ixgbe/ixgbe_rxtx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
>index 13b06eb9c..30f890572 100644
>--- a/drivers/net/ixgbe/ixgbe_rxtx.c
>+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
>@@ -2028,7 +2028,7 @@ ixgbe_recv_pkts_lro(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts,
> 		bool eop;
> 		struct ixgbe_rx_entry *rxe;
> 		struct ixgbe_scattered_rx_entry *sc_entry;
>-		struct ixgbe_scattered_rx_entry *next_sc_entry;
>+		struct ixgbe_scattered_rx_entry *next_sc_entry = NULL;
> 		struct ixgbe_rx_entry *next_rxe = NULL;
> 		struct rte_mbuf *first_seg;
> 		struct rte_mbuf *rxm;
>-- 
>2.24.1
>

Acked-by: Xiaolong Ye <xiaolong.ye at intel.com>