linux-kernel - Re: linux-next: manual merge of the net-next tree with the net tree

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Date:   Tue, 9 Jul 2019 10:27:28 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     David Miller <davem@...emloft.net>,
        Networking <netdev@...r.kernel.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Matteo Croce <mcroce@...hat.com>,
        Florian Westphal <fw@...len.de>
Subject: Re: linux-next: manual merge of the net-next tree with the net tree

Hi all,

On Tue, 2 Jul 2019 12:13:57 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Today's linux-next merge of the net-next tree got a conflict in:
> 
>   net/ipv4/devinet.c
> 
> between commit:
> 
>   2e6054636816 ("ipv4: don't set IPv6 only flags to IPv4 addresses")
> 
> from the net tree and commit:
> 
>   2638eb8b50cf ("net: ipv4: provide __rcu annotation for ifa_list")
> 
> from the net-next tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc net/ipv4/devinet.c
> index c5ebfa199794,137d1892395d..000000000000
> --- a/net/ipv4/devinet.c
> +++ b/net/ipv4/devinet.c
> @@@ -473,11 -482,10 +487,13 @@@ static int __inet_insert_ifa(struct in_
>   	ifa->ifa_flags &= ~IFA_F_SECONDARY;
>   	last_primary = &in_dev->ifa_list;
>   
>  +	/* Don't set IPv6 only flags to IPv4 addresses */
>  +	ifa->ifa_flags &= ~IPV6ONLY_FLAGS;
>  +
> - 	for (ifap = &in_dev->ifa_list; (ifa1 = *ifap) != NULL;
> - 	     ifap = &ifa1->ifa_next) {
> + 	ifap = &in_dev->ifa_list;
> + 	ifa1 = rtnl_dereference(*ifap);
> + 
> + 	while (ifa1) {
>   		if (!(ifa1->ifa_flags & IFA_F_SECONDARY) &&
>   		    ifa->ifa_scope <= ifa1->ifa_scope)
>   			last_primary = &ifa1->ifa_next;


I am still getting this conflict (the commit ids may have changed).
Just a reminder in case you think Linus may need to know.

-- 
Cheers,
Stephen Rothwell

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