netdev - Re: [PATCH v2] net: Fix behaviour of unreachable, blackhole and prohibit routes

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Date:	Thu, 03 Sep 2015 10:29:55 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	nforro@...hat.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH v2] net: Fix behaviour of unreachable, blackhole and
 prohibit routes

From: Nikola Forró <nforro@...hat.com>
Date: Thu, 03 Sep 2015 11:08:51 +0200

> @@ -233,8 +233,10 @@ static inline int fib_lookup(struct net *net, const struct flowi4 *flp,
>  	rcu_read_lock();
>  
>  	tb = fib_get_table(net, RT_TABLE_MAIN);
> -	if (tb && !fib_table_lookup(tb, flp, res, flags | FIB_LOOKUP_NOREF))
> -		err = 0;
> +	if (tb)
> +		err = fib_table_lookup(tb, flp, res, flags | FIB_LOOKUP_NOREF);
> +		if (err == -EAGAIN)
> +			err = -ENETUNREACH;

You didn't test this.
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