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.h...@broadcom.com> Signed-off-by: Ajit Khaparde <ajit.khapa...@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)