Re: [PATCH] net: ipv6: Fix incompatible pointer type warning

[David Miller <davem@davemloft.net>]

From: Emil Goode <emilgoode@gmail.com>
Date: Mon,  3 Jun 2013 14:21:08 +0200

> This fixes the sparse warning below about assignment from
> incompatible pointer type.
> 
> In the following commit the third argument in function ipv6_chk_addr
> was changed to const and struct nf_ipv6_ops was introduced with
> the third argument of .chk_addr beeing const.
> 
> 2a7851bffb008ff4882eee673da74718997b4265
> ("netfilter: add nf_ipv6_ops hook to fix xt_addrtype with IPv6")
> 
> The below commit introduced the warning as the third argument of
> dummy_ipv6_chk_addr and .ipv6_chk_addr in struct pingv6_ops is
> missing a const.
> 
> 6d0bfe22611602f36617bc7aa2ffa1bbb2f54c67
> ("net: ipv6: Add IPv6 support to the ping socket.")
> 
> Sparse output:
> 
> net/ipv6/ping.c: In function ‘pingv6_init’:
> net/ipv6/ping.c:87:27: warning:
> 	assignment from incompatible pointer type [enabled by default]
> 
> Signed-off-by: Emil Goode <emilgoode@gmail.com>

This only happens when you combine net with net-next, therefore your
patch isn't actually relevent to any real GIT tree.

Please make this very clear in the future.