netdev - Re: [PATCH net-next] ipv6: make unsolicited report intervals configurable for mld

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Date:	Mon, 12 Aug 2013 13:09:17 +0200
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	William Manley <william.manley@...view.com>
Cc:	netdev@...r.kernel.org, bcrl@...ck.org, yoshfuji@...ux-ipv6.org
Subject: Re: [PATCH net-next] ipv6: make unsolicited report intervals configurable for mld

On Mon, Aug 12, 2013 at 11:16:34AM +0100, William Manley wrote:
> On 12/08/13 02:48, Hannes Frederic Sowa wrote:
> >Commit cab70040dfd95ee32144f02fade64f0cb94f31a0 ("net: igmp:
> >Reduce Unsolicited report interval to 1s when using IGMPv3") and
> >2690048c01f32bf45d1c1e1ab3079bc10ad2aea7 ("net: igmp: Allow user-space
> >configuration of igmp unsolicited report interval") by William Manley made
> >igmp unsolicited report intervals configurable per interface and corrected
> >the interval of unsolicited igmpv3 report messages resendings to 1s.
> >
> >Same needs to be done for IPv6:
> >
> >MLDv1 (RFC2710 7.10.): 10 seconds
> >MLDv2 (RFC3810 9.11.): 1 second
> >
> >Both intervals are configurable via new procfs knobs
> >mldv1_unsolicited_report_interval and mldv2_unsolicited_report_interval.
> >
> >Cc: William Manley<william.manley@...view.com>
> >Cc: Benjamin LaHaise<bcrl@...ck.org>
> >Cc: YOSHIFUJI Hideaki<yoshfuji@...ux-ipv6.org>
> >Signed-off-by: Hannes Frederic Sowa<hannes@...essinduktion.org>
> 
> Thanks for this.  I'd meant to save you the bother.

I am very sorry if you already started with this. I feared it might already be
forgotten.

> >diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
> >index 7fd8572..158c5e1 100644
> >--- a/net/ipv6/addrconf.c
> >+++ b/net/ipv6/addrconf.c
> >@@ -177,6 +177,8 @@ static struct ipv6_devconf ipv6_devconf __read_mostly 
> >= {
> >  	.accept_redirects	= 1,
> >  	.autoconf		= 1,
> >  	.force_mld_version	= 0,
> >+	.mldv1_unsolicited_report_interval = 10*HZ,
> 
> I think you want spaces around that * operator.
> 
> >+	.mldv2_unsolicited_report_interval = HZ,
> >  	.dad_transmits		= 1,
> >  	.rtr_solicits		= MAX_RTR_SOLICITATIONS,
> >  	.rtr_solicit_interval	= RTR_SOLICITATION_INTERVAL,
> >@@ -211,6 +213,9 @@ static struct ipv6_devconf ipv6_devconf_dflt 
> >__read_mostly = {
> >  	.accept_ra		= 1,
> >  	.accept_redirects	= 1,
> >  	.autoconf		= 1,
> >+	.force_mld_version	= 0,
> 
> Is this a tidyup or does it make a functional difference to this patch? 
>  I suspect the former but I thought I'd check for my own understanding.

Yes, It is solely a small tidy up to bring both structs in line. I will
mention it in the commit message.

> 
> >+	.mldv1_unsolicited_report_interval = 10*HZ,
> 
> Spaces here as well
> 
I will incorporate your other feedback in my next patch.

Thanks you,

  Hannes

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