[dpdk-dev] [PATCH v1] lib/distributor: fix unaligned 128-bit write

[David Hunt]

When the distributor sample app is built as a 32-bit app,
the data buffer passed to find_match_vec can be unaligned,
causing a segmentation fault due to writing a 128-bit value
using _mm_store_si128().  128-bit align the data being
passed in so this does not happen.

Fixes: 775003ad2f96 ("distributor: add new burst-capable library")

Cc: stable at dpdk.org

Signed-off-by: David Hunt <david.hunt at intel.com>
---
 lib/distributor/rte_distributor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/distributor/rte_distributor.c b/lib/distributor/rte_distributor.c
index 07e385a259..c210cf86bd 100644
--- a/lib/distributor/rte_distributor.c
+++ b/lib/distributor/rte_distributor.c
@@ -478,7 +478,7 @@ rte_distributor_process(struct rte_distributor *d,
 		return 0;
 
 	while (next_idx < num_mbufs) {
-		uint16_t matches[RTE_DIST_BURST_SIZE];
+		uint16_t matches[RTE_DIST_BURST_SIZE] __rte_aligned(128);
 		unsigned int pkts;
 
 		if ((num_mbufs - next_idx) < RTE_DIST_BURST_SIZE)
-- 
2.17.1