[dpdk-dev] [PATCH 2/2] net/ena: initialize memory in the allocation macros
Michal Krawczyk
mk at semihalf.com
Tue Jul 4 15:51:53 CEST 2017
From: Alexander Matushevsky <matua at amazon.com>
Uninitialized memory could cause memory corruption, by indicating
completion of the invalid mbuf.
Fixes: 3d3edc265fc8 ("net/ena: make coherent memory allocation NUMA-aware")
Signed-off-by: Alexander Matushevsky <matua at amazon.com>
Signed-off-by: Michal Krawczyk <mk at semihalf.com>
---
drivers/net/ena/base/ena_plat_dpdk.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ena/base/ena_plat_dpdk.h b/drivers/net/ena/base/ena_plat_dpdk.h
index 7eaebf4..71a8c1e 100644
--- a/drivers/net/ena/base/ena_plat_dpdk.h
+++ b/drivers/net/ena/base/ena_plat_dpdk.h
@@ -207,6 +207,7 @@ typedef uint64_t dma_addr_t;
snprintf(z_name, sizeof(z_name), \
"ena_alloc_%d", ena_alloc_cnt++); \
mz = rte_memzone_reserve(z_name, size, node, 0); \
+ memset(mz->addr, 0, size); \
virt = mz->addr; \
phys = mz->phys_addr; \
} while (0)
@@ -219,6 +220,7 @@ typedef uint64_t dma_addr_t;
snprintf(z_name, sizeof(z_name), \
"ena_alloc_%d", ena_alloc_cnt++); \
mz = rte_memzone_reserve(z_name, size, node, 0); \
+ memset(mz->addr, 0, size); \
virt = mz->addr; \
} while (0)
--
2.7.4
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