Because hip08 supports up to 256 gids and hip06 supports up to 2 gids, it
adds judgement for preventing the gid overflow.
Signed-off-by: Lijun Ou <oulijun@xxxxxxxxxx>
---
drivers/infiniband/hw/hns/hns_roce_main.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index 29fb4fb..e3f79d1 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -81,8 +81,12 @@ static int hns_roce_add_gid(const struct ib_gid_attr *attr, void **context)
unsigned long flags;
int ret;
- if (port >= hr_dev->caps.num_ports)
+ if (port >= hr_dev->caps.num_ports ||
+ attr->index > hr_dev->caps.gid_table_len[port]) {
+ dev_err(hr_dev->dev, "add gid failed. port - %d, index - %d\n",
+ port, attr->index);
return -EINVAL;
+ }
spin_lock_irqsave(&hr_dev->iboe.lock, flags);
--
1.9.1
