Re: [PATCH v4 1/2] audit: add audit_log_packet_ip4 and audit_log_packet_ip6 helper functions

From: kernel test robot
Date: Sat Nov 01 2025 - 09:14:28 EST


Hi Ricardo,

kernel test robot noticed the following build errors:

[auto build test ERROR on pcmoore-audit/next]
[also build test ERROR on netfilter-nf/main nf-next/master linus/master v6.18-rc3 next-20251031]
[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/Ricardo-Robaina/audit-add-audit_log_packet_ip4-and-audit_log_packet_ip6-helper-functions/20251031-220605
base: https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit.git next
patch link: https://lore.kernel.org/r/cfafc5247fbfcd2561de16bcff67c1afd5676c9e.1761918165.git.rrobaina%40redhat.com
patch subject: [PATCH v4 1/2] audit: add audit_log_packet_ip4 and audit_log_packet_ip6 helper functions
config: m68k-defconfig (https://download.01.org/0day-ci/archive/20251101/202511012016.TaXzGDDi-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251101/202511012016.TaXzGDDi-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511012016.TaXzGDDi-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

net/netfilter/nft_log.c: In function 'nft_log_eval_audit':
>> net/netfilter/nft_log.c:48:31: error: implicit declaration of function 'audit_log_packet_ip4'; did you mean 'audit_log_capset'? [-Wimplicit-function-declaration]
48 | fam = audit_log_packet_ip4(ab, skb) ? NFPROTO_IPV4 : -1;
| ^~~~~~~~~~~~~~~~~~~~
| audit_log_capset
>> net/netfilter/nft_log.c:51:31: error: implicit declaration of function 'audit_log_packet_ip6'; did you mean 'audit_log_capset'? [-Wimplicit-function-declaration]
51 | fam = audit_log_packet_ip6(ab, skb) ? NFPROTO_IPV6 : -1;
| ^~~~~~~~~~~~~~~~~~~~
| audit_log_capset


vim +48 net/netfilter/nft_log.c

28
29 static void nft_log_eval_audit(const struct nft_pktinfo *pkt)
30 {
31 struct sk_buff *skb = pkt->skb;
32 struct audit_buffer *ab;
33 int fam = -1;
34
35 if (!audit_enabled)
36 return;
37
38 ab = audit_log_start(NULL, GFP_ATOMIC, AUDIT_NETFILTER_PKT);
39 if (!ab)
40 return;
41
42 audit_log_format(ab, "mark=%#x", skb->mark);
43
44 switch (nft_pf(pkt)) {
45 case NFPROTO_BRIDGE:
46 switch (eth_hdr(skb)->h_proto) {
47 case htons(ETH_P_IP):
> 48 fam = audit_log_packet_ip4(ab, skb) ? NFPROTO_IPV4 : -1;
49 break;
50 case htons(ETH_P_IPV6):
> 51 fam = audit_log_packet_ip6(ab, skb) ? NFPROTO_IPV6 : -1;
52 break;
53 }
54 break;
55 case NFPROTO_IPV4:
56 fam = audit_log_packet_ip4(ab, skb) ? NFPROTO_IPV4 : -1;
57 break;
58 case NFPROTO_IPV6:
59 fam = audit_log_packet_ip6(ab, skb) ? NFPROTO_IPV6 : -1;
60 break;
61 }
62
63 if (fam == -1)
64 audit_log_format(ab, " saddr=? daddr=? proto=-1");
65
66 audit_log_end(ab);
67 }
68

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