Re: [PATCH net-next v3 2/4] udp: Remove disconnected sockets from the 4-tuple hash

[kernel test robot <lkp@intel.com>]

Hi Jordan,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Jordan-Rife/udp-Only-compare-daddr-dport-when-sk_state-TCP_ESTABLISHED/20260331-082300
base:   net-next/main
patch link:    https://lore.kernel.org/r/20260330215707.2374657-3-jrife%40google.com
patch subject: [PATCH net-next v3 2/4] udp: Remove disconnected sockets from the 4-tuple hash
config: sparc64-randconfig-r071-20260331 (https://download.01.org/0day-ci/archive/20260401/202604010154.iewJbUya-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 8.5.0
smatch: v0.5.0-9004-gb810ac53
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260401/202604010154.iewJbUya-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604010154.iewJbUya-lkp@intel.com/

All warnings (new ones prefixed by >>):

   net/ipv4/udp.c: In function 'udp_disconnect_unhash4':
   net/ipv4/udp.c:2182:31: error: implicit declaration of function 'udp_get_table_prot'; did you mean 'vm_get_page_prot'? [-Werror=implicit-function-declaration]
     struct udp_table *udptable = udp_get_table_prot(sk);
                                  ^~~~~~~~~~~~~~~~~~
                                  vm_get_page_prot
>> net/ipv4/udp.c:2182:31: warning: initialization of 'struct udp_table *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
   cc1: some warnings being treated as errors


vim +2182 net/ipv4/udp.c

  2179	
  2180	static int udp_disconnect_unhash4(struct sock *sk, int flags)
  2181	{
> 2182		struct udp_table *udptable = udp_get_table_prot(sk);
  2183	
  2184		udp_unhash4(udptable, sk);
  2185		__udp_disconnect(sk, flags);
  2186	
  2187		return 0;
  2188	}
  2189	

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