From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julia Lawall Subject: Re: [PATCH 1/1] netfilter: constify nf_conntrack_l3/4proto parameters Date: Sat, 29 Jul 2017 22:18:38 +0200 (CEST) Message-ID: References: <1501356197-26490-1-git-send-email-Julia.Lawall@lip6.fr> <1501356197-26490-2-git-send-email-Julia.Lawall@lip6.fr> <20170729200343.GH28392@breakpoint.cc> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Cc: "David S. Miller" , bhumirks@gmail.com, kernel-janitors@vger.kernel.org, Pablo Neira Ayuso , Jozsef Kadlecsik , netfilter-devel@vger.kernel.org, coreteam@netfilter.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: Florian Westphal Return-path: In-Reply-To: <20170729200343.GH28392@breakpoint.cc> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Sat, 29 Jul 2017, Florian Westphal wrote: > Julia Lawall wrote: > > When a nf_conntrack_l3/4proto parameter is not on the left hand side > > of an assignment, its address is not taken, and it is not passed to a > > function that may modify its fields, then it can be declared as const. > > > > This change is useful from a documentation point of view, and can > > possibly facilitate making some nf_conntrack_l3/4proto structures const > > subsequently. > > > > Done with the help of Coccinelle. > > > > Some spacing adjusted to fit within 80 characters. > > Acked-by: Florian Westphal > > Thanks Julia. > > I think we can indeed constify these completely after making > 'nla_size' set at compile time. > > I'll send a simple attempt to make it so for l3proto soon. There is another issue with respect to nf_ct_l3proto_unregister. This calls nf_ct_iterate_destroy with l3proto as the second argument. This function has signature: void nf_ct_iterate_destroy(int (*iter)(struct nf_conn *i, void *data), void *data) The void * is not const. Maybe it could be. julia > -- > To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >