netdev - Re: [PATCH net-next] iproute2: bridge: support vlan range

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Date:	Sun, 18 Jan 2015 09:44:18 -0800
From:	Scott Feldman <sfeldma@...il.com>
To:	roopa <roopa@...ulusnetworks.com>
Cc:	Netdev <netdev@...r.kernel.org>, shemminger@...tta.com,
	"vyasevic@...hat.com" <vyasevic@...hat.com>,
	Wilson Kok <wkok@...ulusnetworks.com>
Subject: Re: [PATCH net-next] iproute2: bridge: support vlan range

On Sun, Jan 18, 2015 at 1:11 AM, roopa <roopa@...ulusnetworks.com> wrote:
> On 1/17/15, 5:35 PM, Scott Feldman wrote:
>>
>> On Thu, Jan 15, 2015 at 10:52 PM,  <roopa@...ulusnetworks.com> wrote:
>>>
>>> From: Roopa Prabhu <roopa@...ulusnetworks.com>
>>>
>>> This patch adds vlan range support to bridge command
>>> using the newly added vinfo flags BRIDGE_VLAN_INFO_RANGE_BEGIN and
>>> BRIDGE_VLAN_INFO_RANGE_END.
>>>
>
>>
>>> +                               vinfo.flags |=
>>> BRIDGE_VLAN_INFO_RANGE_BEGIN;
>>> +                       } else {
>>> +                               vinfo.vid = atoi(*argv);
>>> +                       }
>>>                  } else if (strcmp(*argv, "self") == 0) {
>>>                          flags |= BRIDGE_FLAGS_SELF;
>>>                  } else if (strcmp(*argv, "master") == 0) {
>>> @@ -67,7 +78,7 @@ static int vlan_modify(int cmd, int argc, char **argv)
>>>                  argc--; argv++;
>>>          }
>>>
>>> -       if (d == NULL || vid == -1) {
>>> +       if (d == NULL || vinfo.vid == -1) {
>>
>> Where was vinfo.vid initialized to -1?  Maybe use vid rather than
>> vinfo.vid in the code above where parsing the arg, and continue using
>> vid and vid_end until final put of vinfo.
>>
> There is already a "memset(&vinfo, 0, sizeof(vinfo));"  in the code in the
> beginning of the function.

That's the problem...vinfo.vid is initialized to 0, not -1, so
checking if vinfo.vid == -1 is always false.
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