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net: hns3: add max order judgement for tx spare buffer

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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: e445f08af2 ("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>
This commit is contained in:
Hao Chen 2022-03-26 17:51:01 +08:00 committed by David S. Miller
parent 8778372118
commit a89cbb1699
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
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@ -1038,6 +1038,12 @@ static void hns3_init_tx_spare_buffer(struct hns3_enet_ring *ring)
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) {