Re: [PATCH nf-next] netfilter: conntrack: add conntrack event timestamp

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

Hi Florian,

kernel test robot noticed the following build warnings:

[auto build test WARNING on netfilter-nf/main]
[also build test WARNING on linus/master v6.12-rc6 next-20241107]
[cannot apply to nf-next/master horms-ipvs/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Florian-Westphal/netfilter-conntrack-add-conntrack-event-timestamp/20241108-034444
base:   https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git main
patch link:    https://lore.kernel.org/r/20241107194117.32116-1-fw%40strlen.de
patch subject: [PATCH nf-next] netfilter: conntrack: add conntrack event timestamp
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20241108/202411080731.bDRRTgah-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241108/202411080731.bDRRTgah-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/202411080731.bDRRTgah-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> net/netfilter/nf_conntrack_netlink.c:386:1: warning: 'ctnetlink_dump_event_timestamp' defined but not used [-Wunused-function]
     386 | ctnetlink_dump_event_timestamp(struct sk_buff *skb, const struct nf_conn *ct)
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/ctnetlink_dump_event_timestamp +386 net/netfilter/nf_conntrack_netlink.c

   384	
   385	static int
 > 386	ctnetlink_dump_event_timestamp(struct sk_buff *skb, const struct nf_conn *ct)
   387	{
   388	#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
   389		const struct nf_conntrack_ecache *e = nf_ct_ecache_find(ct);
   390	
   391		if (e) {
   392			u64 ts = local64_read(&e->timestamp);
   393	
   394			if (ts)
   395				return nla_put_be64(skb, CTA_TIMESTAMP_EVENT,
   396						    cpu_to_be64(ts), CTA_TIMESTAMP_PAD);
   397		}
   398	#endif
   399		return 0;
   400	}
   401	

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