net/6lowpan/nhc_udp.o: warning: objtool: .discard.annotate_insn: dodgy linker, sh_entsize != 8

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   7004a2e46d1693848370809aa3d9c340a209edbb
commit: 317f2a64618c528539d17fe6957a64106087fbd2 objtool: Convert instrumentation_{begin,end}() to ANNOTATE
date:   7 weeks ago
config: x86_64-randconfig-074-20250122 (https://download.01.org/0day-ci/archive/20250123/202501230818.n7HgoHnK-lkp@xxxxxxxxx/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250123/202501230818.n7HgoHnK-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/202501230818.n7HgoHnK-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from net/6lowpan/nhc_udp.c:13:
   In file included from net/6lowpan/nhc.h:5:
   In file included from include/linux/skbuff.h:17:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:8:
   In file included from include/linux/cacheflush.h:5:
   In file included from arch/x86/include/asm/cacheflush.h:5:
   In file included from include/linux/mm.h:2223:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   1 warning generated.
>> net/6lowpan/nhc_udp.o: warning: objtool: .discard.annotate_insn: dodgy linker, sh_entsize != 8
--
   In file included from net/ipv4/ip_tunnel.c:14:
   In file included from include/linux/skbuff.h:17:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:8:
   In file included from include/linux/cacheflush.h:5:
   In file included from arch/x86/include/asm/cacheflush.h:5:
   In file included from include/linux/mm.h:2223:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   1 warning generated.
>> net/ipv4/ip_tunnel.o: warning: objtool: .discard.annotate_insn: dodgy linker, sh_entsize != 8
--
   In file included from net/ipv4/tcp_westwood.c:25:
   In file included from include/linux/mm.h:2223:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   1 warning generated.
>> net/ipv4/tcp_westwood.o: warning: objtool: .discard.annotate_insn: dodgy linker, sh_entsize != 8
--
   In file included from net/ipv6/ip6_udp_tunnel.c:6:
   In file included from include/linux/udp.h:16:
   In file included from include/net/inet_sock.h:19:
   In file included from include/linux/netdevice.h:38:
   In file included from include/net/net_namespace.h:43:
   In file included from include/linux/skbuff.h:17:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:8:
   In file included from include/linux/cacheflush.h:5:
   In file included from arch/x86/include/asm/cacheflush.h:5:
   In file included from include/linux/mm.h:2223:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   1 warning generated.
>> net/ipv6/ip6_udp_tunnel.o: warning: objtool: .discard.annotate_insn: dodgy linker, sh_entsize != 8
--
   In file included from drivers/acpi/acpi_pad.c:20:
   In file included from include/linux/perf_event.h:18:
   In file included from include/uapi/linux/bpf_perf_event.h:11:
   In file included from ./arch/x86/include/generated/uapi/asm/bpf_perf_event.h:1:
   In file included from include/uapi/asm-generic/bpf_perf_event.h:4:
   In file included from include/linux/ptrace.h:10:
   In file included from include/linux/pid_namespace.h:7:
   In file included from include/linux/mm.h:2223:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   1 warning generated.
>> drivers/acpi/acpi_pad.o: warning: objtool: .discard.annotate_insn: dodgy linker, sh_entsize != 8
--
>> drivers/ntb/ntb.o: warning: objtool: .discard.annotate_insn: dodgy linker, sh_entsize != 8
--
>> drivers/vdpa/ifcvf/ifcvf.o: warning: objtool: .discard.annotate_insn: dodgy linker, sh_entsize != 8
--
   In file included from drivers/xen/pvcalls-front.c:7:
   In file included from include/linux/net.h:24:
   In file included from include/linux/mm.h:2223:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   1 warning generated.
>> drivers/xen/pvcalls-front.o: warning: objtool: .discard.annotate_insn: dodgy linker, sh_entsize != 8

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