Re: [PATCH][V2] flow dissector: check if arp_eth is null rather than arp

From: David Miller
Date: Mon Jan 16 2017 - 13:49:29 EST


From: Colin King <colin.king@xxxxxxxxxxxxx>
Date: Fri, 13 Jan 2017 18:48:20 +0000

> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> arp is being checked instead of arp_eth to see if the call to
> __skb_header_pointer failed. Fix this by checking arp_eth is
> null instead of arp. Also fix to use length hlen rather than
> hlen - sizeof(_arp); thanks to Eric Dumazet for spotting
> this latter issue.
>
> CoverityScan CID#1396428 ("Logically dead code") on 2nd
> arp comparison (which should be arp_eth instead).
>
> Fixes: commit 55733350e5e8b70c5 ("flow disector: ARP support")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Applied, thanks.