linux-kernel - Re: [PATCH 2/4] net: Adjustment parameters in rtnl

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Date:   Tue, 20 Jul 2021 03:24:34 +0000
From:   yajun.deng@...ux.dev
To:     "Rémi Denis-Courmont" <remi@...lab.net>,
        courmisch@...il.com
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] net: Adjustment parameters in rtnl_notify()

July 19, 2021 10:36 PM, "Rémi Denis-Courmont" <remi@...lab.net> wrote:

> Hi,
> 
> Le maanantaina 19. heinäkuuta 2021, 15.25.06 EEST Yajun Deng a écrit :
> 
>> The fifth parameter alread modify from 'struct nlmsghdr *nlh' to
>> 'int report', just adjustment them.
> 
> I can't see that anywhere in the patch.
I had resent the [PATH 0/4] and [PATH 1/4].
> 
>> Add the case the nlh variable is NULL in nlmsg_report().
>> 
>> Signed-off-by: Yajun Deng <yajun.deng@...ux.dev>
>> 
>> diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c
>> index 59aebe296890..03e04d0b8453 100644
>> --- a/net/phonet/pn_netlink.c
>> +++ b/net/phonet/pn_netlink.c
>> @@ -38,7 +38,7 @@ void phonet_address_notify(int event, struct net_device
>> *dev, u8 addr) goto errout;
>> }
>> rtnl_notify(skb, dev_net(dev), 0,
>> - RTNLGRP_PHONET_IFADDR, NULL, GFP_KERNEL);
>> + RTNLGRP_PHONET_IFADDR, 0, GFP_KERNEL);
>> return;
>> errout:
>> rtnl_set_sk_err(dev_net(dev), RTNLGRP_PHONET_IFADDR, err);
>> @@ -204,7 +204,7 @@ void rtm_phonet_notify(int event, struct net_device
>> *dev, u8 dst) goto errout;
>> }
>> rtnl_notify(skb, dev_net(dev), 0,
>> - RTNLGRP_PHONET_ROUTE, NULL, GFP_KERNEL);
>> + RTNLGRP_PHONET_ROUTE, 0, GFP_KERNEL);
>> return;
>> errout:
>> rtnl_set_sk_err(dev_net(dev), RTNLGRP_PHONET_ROUTE, err);
> 
> Sorry but I don't like to replace explicit NULL pointers with implicitly
> converted zeroes.
> 
> --
> 雷米‧德尼-库尔蒙
> http://www.remlab.net