* Re: [PATCH] netfilter: xt_HL: add pr_fmt, default case and NULL checks
[not found] <20260403193929.89449-1-marino.dzalto@gmail.com>
@ 2026-04-21 16:24 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-04-21 16:24 UTC (permalink / raw)
To: Marino Dzalto, pablo, fw
Cc: llvm, oe-kbuild-all, netfilter-devel, coreteam, netdev,
linux-kernel, Marino Dzalto
Hi Marino,
kernel test robot noticed the following build errors:
[auto build test ERROR on netfilter-nf/main]
[also build test ERROR on linus/master v7.0 next-20260420]
[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/Marino-Dzalto/netfilter-xt_HL-add-pr_fmt-default-case-and-NULL-checks/20260420-185652
base: https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git main
patch link: https://lore.kernel.org/r/20260403193929.89449-1-marino.dzalto%40gmail.com
patch subject: [PATCH] netfilter: xt_HL: add pr_fmt, default case and NULL checks
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20260422/202604220024.iITt6Hv8-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260422/202604220024.iITt6Hv8-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/202604220024.iITt6Hv8-lkp@intel.com/
All errors (new ones prefixed by >>):
>> net/netfilter/xt_hl.c:34:6: error: cannot assign to variable 'ttl' with const-qualified type 'const u8' (aka 'const unsigned char')
34 | ttl = ip_hdr(skb)->ttl;
| ~~~ ^
net/netfilter/xt_hl.c:29:11: note: variable 'ttl' declared const here
29 | const u8 ttl;
| ~~~~~~~~~^~~
1 error generated.
vim +34 net/netfilter/xt_hl.c
25
26 static bool ttl_mt(const struct sk_buff *skb, struct xt_action_param *par)
27 {
28 const struct ipt_ttl_info *info = par->matchinfo;
29 const u8 ttl;
30
31 if (!skb)
32 return false;
33
> 34 ttl = ip_hdr(skb)->ttl;
35
36 switch (info->mode) {
37 case IPT_TTL_EQ:
38 return ttl == info->ttl;
39 case IPT_TTL_NE:
40 return ttl != info->ttl;
41 case IPT_TTL_LT:
42 return ttl < info->ttl;
43 case IPT_TTL_GT:
44 return ttl > info->ttl;
45 default:
46 pr_warn("Unknown TTL match mode: %d\n", info->mode);
47 return false;
48 }
49 }
50
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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