From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Borkmann Subject: Re: [net-next PATCH] bpf: devmap: remove unnecessary value size check Date: Wed, 16 Aug 2017 10:39:58 +0200 Message-ID: <599404DE.8030400@iogearbox.net> References: <20170816063512.14925.40390.stgit@john-Precision-Tower-5810> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: John Fastabend , davem@davemloft.net Return-path: Received: from www62.your-server.de ([213.133.104.62]:33718 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751454AbdHPIkC (ORCPT ); Wed, 16 Aug 2017 04:40:02 -0400 In-Reply-To: <20170816063512.14925.40390.stgit@john-Precision-Tower-5810> Sender: netdev-owner@vger.kernel.org List-ID: On 08/16/2017 08:35 AM, John Fastabend wrote: > In the devmap alloc map logic we check to ensure that the sizeof the > values are not greater than KMALLOC_MAX_SIZE. But, in the dev map case > we ensure the value size is 4bytes earlier in the function because all > values should be netdev ifindex values. > > The second check is harmless but is not needed so remove it. > > Signed-off-by: John Fastabend Acked-by: Daniel Borkmann