Re: [PATCH] net/core: tidy up an error message

[Joe Perches <joe@perches.com>]

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