[dpdk-dev] [PATCH 2/8] net/bnxt: fix to avoid a segfault
Ajit Khaparde
ajit.khaparde at broadcom.com
Thu Jul 20 06:48:20 CEST 2017
Fix use of local variable to avoid segfault.
cnt was incorrectly tested and decremented in the loop that removes
a VLAN from the table.
Fixes: 36735a932ca7 ("support set VF QOS and MAC anti spoof")
Signed-off-by: Stephen Hurd <stephen.hurd at broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
drivers/net/bnxt/rte_pmd_bnxt.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/net/bnxt/rte_pmd_bnxt.c b/drivers/net/bnxt/rte_pmd_bnxt.c
index 0a8fb1e..0d48873 100644
--- a/drivers/net/bnxt/rte_pmd_bnxt.c
+++ b/drivers/net/bnxt/rte_pmd_bnxt.c
@@ -500,6 +500,7 @@ int rte_pmd_bnxt_set_vf_vlan_filter(uint8_t port, uint16_t vlan,
continue;
}
+ /* cnt is one less than vlan_count */
cnt = bp->pf.vf_info[i].vlan_count++;
/*
* And finally, add to the
@@ -511,19 +512,19 @@ int rte_pmd_bnxt_set_vf_vlan_filter(uint8_t port, uint16_t vlan,
ve->vid = rte_cpu_to_be_16(vlan);
}
} else {
- for (j = 0; cnt; j++) {
+ for (j = 0; j < cnt; j++) {
if (rte_be_to_cpu_16(
- bp->pf.vf_info[i].vlan_table[j].vid) !=
- vlan)
+ bp->pf.vf_info[i].vlan_table[j].vid) !=
+ vlan)
continue;
memmove(
- &bp->pf.vf_info[i].vlan_table[j],
- &bp->pf.vf_info[i].vlan_table[j + 1],
- getpagesize() -
- ((j + 1) *
+ &bp->pf.vf_info[i].vlan_table[j],
+ &bp->pf.vf_info[i].vlan_table[j + 1],
+ getpagesize() -
+ ((j + 1) *
sizeof(struct bnxt_vlan_table_entry)));
j--;
- cnt = bp->pf.vf_info[i].vlan_count--;
+ cnt = --bp->pf.vf_info[i].vlan_count;
}
}
rte_pmd_bnxt_set_vf_vlan_anti_spoof(dev->data->port_id,
--
2.10.1 (Apple Git-78)
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