[dpdk-dev] [PATCH 1/2 v2] bnxt: use appropriate data type in bnxt_alloc_vnic_attributes
Ajit Khaparde
ajit.khaparde at broadcom.com
Thu Nov 3 19:58:18 CET 2016
Prevent the arithmetic in bnxt_alloc_vnic_attributes from causing
any unintentional havoc because of the usage of a signed variable.
Coverity: 137874
Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
--
v2: Previous attempt did not seem complete.
---
drivers/net/bnxt/bnxt_vnic.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/bnxt/bnxt_vnic.c b/drivers/net/bnxt/bnxt_vnic.c
index 205a940..23c85af 100644
--- a/drivers/net/bnxt/bnxt_vnic.c
+++ b/drivers/net/bnxt/bnxt_vnic.c
@@ -179,7 +179,7 @@ int bnxt_alloc_vnic_attributes(struct bnxt *bp)
HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table) +
HW_HASH_KEY_SIZE);
uint16_t max_vnics;
- int i;
+ uint16_t i;
if (BNXT_PF(bp)) {
struct bnxt_pf_info *pf = &bp->pf;
@@ -197,7 +197,7 @@ int bnxt_alloc_vnic_attributes(struct bnxt *bp)
mz = rte_memzone_lookup(mz_name);
if (!mz) {
mz = rte_memzone_reserve(mz_name,
- entry_length * max_vnics,
+ (uint32_t) entry_length * max_vnics,
SOCKET_ID_ANY,
RTE_MEMZONE_2MB |
RTE_MEMZONE_SIZE_HINT_ONLY);
@@ -210,10 +210,11 @@ int bnxt_alloc_vnic_attributes(struct bnxt *bp)
/* Allocate rss table and hash key */
vnic->rss_table =
- (void *)((char *)mz->addr + (entry_length * i));
+ (void *)((char *)mz->addr + ((uint32_t) entry_length * i));
memset(vnic->rss_table, -1, entry_length);
- vnic->rss_table_dma_addr = mz->phys_addr + (entry_length * i);
+ vnic->rss_table_dma_addr =
+ mz->phys_addr + ((uint32_t) entry_length * i);
vnic->rss_hash_key = (void *)((char *)vnic->rss_table +
HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table));
--
1.8.3.1
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