From: Junxian Huang Date: Tue, 17 Oct 2023 12:52:38 +0000 (+0800) Subject: RDMA/hns: Fix unnecessary port_num transition in HW stats allocation X-Git-Tag: v6.6.2~222 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1210137c7f82beb0dd7506a4befb05753c0979b7;p=thirdparty%2Fkernel%2Fstable.git RDMA/hns: Fix unnecessary port_num transition in HW stats allocation [ Upstream commit b4a797b894dc91a541ea230db6fa00cc74683bfd ] The num_ports capability of devices should be compared with the number of port(i.e. the input param "port_num") but not the port index(i.e. port_num - 1). Fixes: 5a87279591a1 ("RDMA/hns: Support hns HW stats") Signed-off-by: Junxian Huang Link: https://lore.kernel.org/r/20231017125239.164455-7-huangjunxian6@hisilicon.com Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index d9d546cdef525..e1a88f2d51b6c 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -547,9 +547,8 @@ static struct rdma_hw_stats *hns_roce_alloc_hw_port_stats( struct ib_device *device, u32 port_num) { struct hns_roce_dev *hr_dev = to_hr_dev(device); - u32 port = port_num - 1; - if (port > hr_dev->caps.num_ports) { + if (port_num > hr_dev->caps.num_ports) { ibdev_err(device, "invalid port num.\n"); return NULL; }