netdev - Re: [PATCH net] net: use inet_ehash

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Date:   Mon, 14 Jan 2019 19:31:41 +0100
From:   Marcus Hüwe <suse-tux@....de>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuznet@....inr.ac.ru,
        yoshfuji@...ux-ipv6.org
Subject: Re: [PATCH net] net: use inet_ehash_bucket(...) for consistency

On 2019-01-14 08:47:47 -0800, Eric Dumazet wrote:
> On 01/12/2019 06:07 AM, Marcus Huewe wrote:
> > Make the access to the struct inet_hashinfo's ehash member consistent.
> > In net/ipv4/inet_hashtables.c, the ehash member is accessed by calling
> > inet_ehash_bucket(...) except for the access in __inet_lookup_established.
> > In order to make the access consistent, use inet_ehash_bucket(...)
> > in __inet_lookup_established.
> > 
> > Signed-off-by: Marcus Huewe <suse-tux@....de>
> > ---
> >  net/ipv4/inet_hashtables.c | 3 +--
> >  1 file changed, 1 insertion(+), 2 deletions(-)
> > 
> > diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
> > index 942265d65eb3..2b54eb6e5951 100644
> > --- a/net/ipv4/inet_hashtables.c
> > +++ b/net/ipv4/inet_hashtables.c
> > @@ -361,8 +361,7 @@ struct sock *__inet_lookup_established(struct net *net,
> >  	 * have wildcards anyways.
> >  	 */
> >  	unsigned int hash = inet_ehashfn(net, daddr, hnum, saddr, sport);
> > -	unsigned int slot = hash & hashinfo->ehash_mask;
> > -	struct inet_ehash_bucket *head = &hashinfo->ehash[slot];
> > +	struct inet_ehash_bucket *head = inet_ehash_bucket(hashinfo, hash);
> >  
> >  begin:
> >  	sk_nulls_for_each_rcu(sk, node, &head->chain) {
> > 
> 
> Have you actually compiled the kernel once this patch is applied ?
> 
*blush*
Please ignore - sorry for the noise.


Marcus