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Message-ID: <fece118c-22ca-30c5-51b7-b6e9dc56ae59@gmail.com>
Date: Fri, 24 May 2019 16:04:54 -0600
From: David Ahern <dsahern@...il.com>
To: Colin King <colin.king@...onical.com>,
"David S . Miller" <davem@...emloft.net>,
Alexey Kuznetsov <kuznet@....inr.ac.ru>,
Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
netdev@...r.kernel.org
Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] ipv4: remove redundant assignment to n
On 5/24/19 3:56 PM, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
>
> The pointer n is being assigned a value however this value is
> never read in the code block and the end of the code block
> continues to the next loop iteration. Clean up the code by
> removing the redundant assignment.
>
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
> net/ipv4/fib_trie.c | 1 -
> 1 file changed, 1 deletion(-)
>
This looks right to me -- n should have been dropped. It is used in
fib_trie_free from which I created __fib_info_notify_update but
__fib_info_notify_update does do the put_child_root or node_free, it
only walks the tree looking for relevant entries that need to send the
NEWROUTE notifications.
Fixes: 1bff1a0c9bbda ("ipv4: Add function to send route updates")
Reviewed-by: David Ahern <dsahern@...il.com>
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