Subject: Re: [PATCH net-next] net/rds: use strscpy() to instead of strncpy()

From: Jakub Kicinski <[email-masked]>
Date: Mon, 9 Jan 2023 19:48:34 -0800

On Mon, 9 Jan 2023 19:48:43 +0800 (CST) [email-masked] wrote:
>  		BUG_ON(strlen(names[i]) >= sizeof(ctr.name));
> -		strncpy(ctr.name, names[i], sizeof(ctr.name) - 1);
> -		ctr.name[sizeof(ctr.name) - 1] = '\0';
> +		strscpy(ctr.name, names[i], sizeof(ctr.name));

You can make use of the fact that strscpy returns useful information
and the copy and the preceding BUG_ON() together.