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

mainline inclusion
from mainline-net-5.17
commit a89cbb16
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4YXIM
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a89cbb16995b

----------------------------------------------------------------------

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: e445f08a ("net: hns3: add support to set/get tx copybreak buf size via ethtool for hns3 driver")
Signed-off-by: NHao Chen <chenhao288@hisilicon.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYue Haibing <yuehaibing@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

@@ -1037,6 +1037,12 @@ 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) {