Add max order judgement for tx spare buffer to avoid triggering
call trace, print related fail information instead, when user
set tx spare buf size to a large value which causes order
exceeding 10.
Fixes: e445f08af2b1 ("net: hns3: add support to set/get tx copybreak buf size via ethtool for hns3 driver")
Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
return;
order = get_order(alloc_size);
+ if (order >= MAX_ORDER) {
+ if (net_ratelimit())
+ dev_warn(ring_to_dev(ring), "failed to allocate tx spare buffer, exceed to max order\n");
+ return;
+ }
+
tx_spare = devm_kzalloc(ring_to_dev(ring), sizeof(*tx_spare),
GFP_KERNEL);
if (!tx_spare) {