On Fri, 2018-11-30 at 23:51 -0500, Qian Cai wrote:
> netif_napi_add() could report an error like this below due to it allows
> to pass a format string for wildcarding before calling
> dev_get_valid_name(),
>
> "netif_napi_add() called with weight 256 on device eth%d"
>
> For example, hns_enet_drv module does this.
>
> hns_nic_try_get_ae
> hns_nic_init_ring_data
> netif_napi_add
> register_netdev
> dev_get_valid_name
>
> Hence, make it a bit more human-readable.
[]
> diff --git a/net/core/dev.c b/net/core/dev.c
[]
> @@ -6205,7 +6205,8 @@ void netif_napi_add(struct net_device *dev, struct
> napi_struct *napi,
> napi->poll = poll;
> if (weight > NAPI_POLL_WEIGHT)
> pr_err_once("netif_napi_add() called with weight %d on device
> %s\n",
> - weight, dev->name);
> + weight,
> + !strchr(dev->name, '%') ? dev->name : "unknown");
perhaps instead use netdev_err_once
