linux-kernel - Re: [PATCH] Made bpf_internal_load_pointer_neg

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Date:	Tue, 12 Aug 2014 07:21:20 +0200
From:	Daniel Borkmann <dborkman@...hat.com>
To:	Alexei Starovoitov <alexei.starovoitov@...il.com>
CC:	Benjamin Lee <leeben@...ux.vnet.ibm.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	dany@...ibm.com, dany4madden@...il.com, benjamin.fik.lee@...il.com
Subject: Re: [PATCH] Made bpf_internal_load_pointer_neg_helper static: fixes
 Sparse warning

On 08/12/2014 02:57 AM, Alexei Starovoitov wrote:
> On Mon, Aug 11, 2014 at 3:00 PM, Benjamin Lee <leeben@...ux.vnet.ibm.com> wrote:
>> I wanted to know what the current status of my patch is since my
>> internship will be ending this Friday and I want to know before then. if
>> there are any problems with it I can fix them before Thursday. Thank you
>> in advance.
>
> using scripts/get_maintainer.pl for cc list would have helped to
> receive response sooner.
>
>> On Fri, 2014-07-18 at 11:34 -0700, Benjamin Lee wrote:
>>> This patch fixes the following Sparse warning:
>>>
>>> net/core/filter.c:52:6: warning: symbol
>>> 'bpf_internal_load_pointer_neg_helper' was not declared. Should it be
>>> static?
>>>
>>> I declared bpf_internal_load_pointer_neg_helper as static because it
>>> is not referenced elsewhere in the kernel. The patched kernel boots
>
> the patch is incorrect, since this function is called out of assembler.
> Try 'git grep bpf_internal_load_pointer_neg_helper'

Agreed.
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