[openeuler:openEuler-1.0-LTS 8557/22438] mm/swapfile.o: warning: objtool: missing symbol for section .text.unlikely

[openeuler:openEuler-1.0-LTS 8557/22438] mm/swapfile.o: warning: objtool: missing symbol for section .text.unlikely

[kernel test robot]

tree:   https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS
head:   8ac9764e4f9b88e554a8dafd8283dab32512691c
commit: 775947c125d5bd6e00e0dcf9d12c57fd5d44d07f [8557/22438] asm-generic: fix -Wtype-limits compiler warnings
config: x86_64-buildonly-randconfig-001-20240516 (https://download.01.org/0day-ci/archive/20240517/202405170118.NQpCse4L-lkp@intel.com/config)
compiler: gcc-11 (Ubuntu 11.4.0-4ubuntu1) 11.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240517/202405170118.NQpCse4L-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/202405170118.NQpCse4L-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/swapfile.o: warning: objtool: missing symbol for section .text.unlikely
--
   In file included from include/linux/sctp.h:57,
                    from net/core/dev.c:145:
   include/uapi/linux/sctp.h:390:1: warning: alignment 4 of 'struct sctp_paddr_change' is less than 8 [-Wpacked-not-aligned]
     390 | } __attribute__((packed, aligned(4)));
         | ^
   include/uapi/linux/sctp.h:719:1: warning: alignment 4 of 'struct sctp_setpeerprim' is less than 8 [-Wpacked-not-aligned]
     719 | } __attribute__((packed, aligned(4)));
         | ^
   include/uapi/linux/sctp.h:718:33: warning: 'sspp_addr' offset 4 in 'struct sctp_setpeerprim' isn't aligned to 8 [-Wpacked-not-aligned]
     718 |         struct sockaddr_storage sspp_addr;
         |                                 ^~~~~~~~~
   include/uapi/linux/sctp.h:732:1: warning: alignment 4 of 'struct sctp_prim' is less than 8 [-Wpacked-not-aligned]
     732 | } __attribute__((packed, aligned(4)));
         | ^
   include/uapi/linux/sctp.h:731:33: warning: 'ssp_addr' offset 4 in 'struct sctp_prim' isn't aligned to 8 [-Wpacked-not-aligned]
     731 |         struct sockaddr_storage ssp_addr;
         |                                 ^~~~~~~~
   include/uapi/linux/sctp.h:783:1: warning: alignment 4 of 'struct sctp_paddrparams' is less than 8 [-Wpacked-not-aligned]
     783 | } __attribute__((packed, aligned(4)));
         | ^
   include/uapi/linux/sctp.h:775:33: warning: 'spp_address' offset 4 in 'struct sctp_paddrparams' isn't aligned to 8 [-Wpacked-not-aligned]
     775 |         struct sockaddr_storage spp_address;
         |                                 ^~~~~~~~~~~
   include/uapi/linux/sctp.h:896:1: warning: alignment 4 of 'struct sctp_paddrinfo' is less than 8 [-Wpacked-not-aligned]
     896 | } __attribute__((packed, aligned(4)));
         | ^
   include/uapi/linux/sctp.h:890:33: warning: 'spinfo_address' offset 4 in 'struct sctp_paddrinfo' isn't aligned to 8 [-Wpacked-not-aligned]
     890 |         struct sockaddr_storage spinfo_address;
         |                                 ^~~~~~~~~~~~~~
   In file included from include/linux/if_ether.h:23,
                    from net/core/dev.c:92:
   include/linux/skbuff.h: In function '__skb_metadata_differs':
   include/linux/skbuff.h:3501:24: warning: this statement may fall through [-Wimplicit-fallthrough=]
    3501 |         case 32: diffs |= __it_diff(a, b, 64);
         |                        ^~
   include/linux/skbuff.h:3502:9: note: here
    3502 |         case 24: diffs |= __it_diff(a, b, 64);
         |         ^~~~
   include/linux/skbuff.h:3502:24: warning: this statement may fall through [-Wimplicit-fallthrough=]
    3502 |         case 24: diffs |= __it_diff(a, b, 64);
         |                        ^~
   include/linux/skbuff.h:3503:9: note: here
    3503 |         case 16: diffs |= __it_diff(a, b, 64);
         |         ^~~~
   include/linux/skbuff.h:3503:24: warning: this statement may fall through [-Wimplicit-fallthrough=]
    3503 |         case 16: diffs |= __it_diff(a, b, 64);
         |                        ^~
   include/linux/skbuff.h:3504:9: note: here
    3504 |         case  8: diffs |= __it_diff(a, b, 64);
         |         ^~~~
   include/linux/skbuff.h:3506:24: warning: this statement may fall through [-Wimplicit-fallthrough=]
    3506 |         case 28: diffs |= __it_diff(a, b, 64);
         |                        ^~
   include/linux/skbuff.h:3507:9: note: here
    3507 |         case 20: diffs |= __it_diff(a, b, 64);
         |         ^~~~
   include/linux/skbuff.h:3507:24: warning: this statement may fall through [-Wimplicit-fallthrough=]
    3507 |         case 20: diffs |= __it_diff(a, b, 64);
         |                        ^~
   include/linux/skbuff.h:3508:9: note: here
    3508 |         case 12: diffs |= __it_diff(a, b, 64);
         |         ^~~~
   include/linux/skbuff.h:3508:24: warning: this statement may fall through [-Wimplicit-fallthrough=]
    3508 |         case 12: diffs |= __it_diff(a, b, 64);
         |                        ^~
   include/linux/skbuff.h:3509:9: note: here
    3509 |         case  4: diffs |= __it_diff(a, b, 32);
         |         ^~~~
>> net/core/dev.o: warning: objtool: missing symbol for section .text.unlikely

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