-----Original Message-----
From: Chengchang Tang <tangchengchang@huawei.com>

quoted

quoted

+		ret = rte_eth_dev_get_reg_info(i, &reg_info);
+		if (ret) {
+			printf("Error getting device reg info: %d\n", ret);
+			continue;
+		}
+
+		buf_size = reg_info.length * reg_info.width;

If it is to get the regs length, you can directly call

"rte_ethtool_get_regs_len(uint16_t port_id)" API , instead of  again writing the
above logic.

quoted

And use the returned length in below malloc.

This logic is indeed identical to the logic of the "rte_ethtool_get_regs_len" API
of Ethtool, but the method of using the "rte_eth_dev_get_reg_info" API is the
case. All users will have similar code logic when using this API.

Oh yes, my bad, I overlooked it. It makes complete sense now.