Re: [PATCH bpf-next v2 3/6] net: remove duplicate reuseport_lookup functions

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Hi Lorenz,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 25085b4e9251c77758964a8e8651338972353642]

url:    https://github.com/intel-lab-lkp/linux/commits/Lorenz-Bauer/net-export-inet_lookup_reuseport-and-inet6_lookup_reuseport/20230613-181619
base:   25085b4e9251c77758964a8e8651338972353642
patch link:    https://lore.kernel.org/r/20230613-so-reuseport-v2-3-b7c69a342613%40isovalent.com
patch subject: [PATCH bpf-next v2 3/6] net: remove duplicate reuseport_lookup functions
config: i386-defconfig (https://download.01.org/0day-ci/archive/20230614/202306140138.DnwjedJ1-lkp@xxxxxxxxx/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build):
        git checkout 25085b4e9251c77758964a8e8651338972353642
        b4 shazam https://lore.kernel.org/r/20230613-so-reuseport-v2-3-b7c69a342613@xxxxxxxxxxxxx
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash net/ipv4/ net/ipv6/

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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306140138.DnwjedJ1-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> net/ipv4/udp.c:409:5: warning: no previous prototype for 'udp_ehashfn' [-Wmissing-prototypes]
     409 | u32 udp_ehashfn(const struct net *net, const __be32 laddr, const __u16 lport,
         |     ^~~~~~~~~~~
--
>> net/ipv6/udp.c:74:5: warning: no previous prototype for 'udp6_ehashfn' [-Wmissing-prototypes]
      74 | u32 udp6_ehashfn(const struct net *net,
         |     ^~~~~~~~~~~~


vim +/udp_ehashfn +409 net/ipv4/udp.c

   407	
   408	INDIRECT_CALLABLE_SCOPE
 > 409	u32 udp_ehashfn(const struct net *net, const __be32 laddr, const __u16 lport,
   410			const __be32 faddr, const __be16 fport)
   411	{
   412		static u32 udp_ehash_secret __read_mostly;
   413	
   414		net_get_random_once(&udp_ehash_secret, sizeof(udp_ehash_secret));
   415	
   416		return __inet_ehashfn(laddr, lport, faddr, fport,
   417				      udp_ehash_secret + net_hash_mix(net));
   418	}
   419	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki




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