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Message-ID: <202205200128.layu7VXF-lkp@intel.com>
Date:   Fri, 20 May 2022 01:23:43 +0800
From:   kernel test robot <lkp@...el.com>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Subject: arch/mips/include/asm/checksum.h:195:9: error: unsupported inline
 asm: input with type 'unsigned long' matching output with type '__wsum' (aka
 'unsigned int')

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f993aed406eaf968ba3867a76bb46c95336a33d0
commit: c434b9f80b0923e6460031b0fd964f8b0bf3c6a6 MIPS: Kconfig: add MIPS_GENERIC_KERNEL symbol
date:   1 year, 8 months ago
config: mips-randconfig-r036-20220519 (https://download.01.org/0day-ci/archive/20220520/202205200128.layu7VXF-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e00cbbec06c08dc616a0d52a20f678b8fbd4e304)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c434b9f80b0923e6460031b0fd964f8b0bf3c6a6
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout c434b9f80b0923e6460031b0fd964f8b0bf3c6a6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash arch/mips/cavium-octeon/ drivers/dma-buf/heaps/ net/ipv6/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All error/warnings (new ones prefixed by >>):

   In file included from arch/mips/cavium-octeon/octeon-platform.c:10:
   In file included from include/linux/etherdevice.h:20:
   In file included from include/linux/if_ether.h:19:
   In file included from include/linux/skbuff.h:28:
   In file included from include/net/checksum.h:22:
>> arch/mips/include/asm/checksum.h:195:9: error: unsupported inline asm: input with type 'unsigned long' matching output with type '__wsum' (aka 'unsigned int')
           : "0" ((__force unsigned long)daddr),
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from arch/mips/cavium-octeon/octeon-platform.c:15:
   In file included from arch/mips/include/asm/octeon/octeon.h:11:
   In file included from arch/mips/include/asm/octeon/cvmx.h:72:
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:323:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_NULL)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:323:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:324:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_SIM)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:324:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:325:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_EBT3000)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:325:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:326:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_KODAMA)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:326:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:327:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_NIAGARA)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:327:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:328:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_NAC38)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:328:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:329:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_THUNDER)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:329:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:330:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_TRANTOR)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:330:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:331:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_EBH3000)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:331:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:332:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_EBH3100)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
--
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:397:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_CUST_PRIVATE_MIN)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:397:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:398:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_UBNT_E100)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:398:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:399:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_CUST_DSR1000N)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:399:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:400:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_KONTRON_S1901)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:400:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:401:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_CUST_PRIVATE_MAX)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:401:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:412:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_CHIP_TYPE_CASE(CVMX_CHIP_TYPE_NULL)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:412:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:413:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_CHIP_TYPE_CASE(CVMX_CHIP_SIM_TYPE_DEPRECATED)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:413:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:414:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_CHIP_TYPE_CASE(CVMX_CHIP_TYPE_OCTEON_SAMPLE)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:414:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:415:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_CHIP_TYPE_CASE(CVMX_CHIP_TYPE_MAX)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:415:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                             ^
   arch/mips/cavium-octeon/smp.c:99:6: warning: no previous prototype for function 'octeon_send_ipi_single' [-Wmissing-prototypes]
   void octeon_send_ipi_single(int cpu, unsigned int action)
        ^
   arch/mips/cavium-octeon/smp.c:99:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void octeon_send_ipi_single(int cpu, unsigned int action)
   ^
   static 
>> arch/mips/cavium-octeon/smp.c:194:5: warning: no previous prototype for function 'plat_post_relocation' [-Wmissing-prototypes]
   int plat_post_relocation(long offset)
       ^
   arch/mips/cavium-octeon/smp.c:194:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int plat_post_relocation(long offset)
   ^
   static 
   81 warnings generated.
   Assembler messages:
   Warning: a different -march was already specified, is now octeon
--
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:394:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:397:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_CUST_PRIVATE_MIN)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:397:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:398:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_UBNT_E100)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:398:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:399:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_CUST_DSR1000N)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:399:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:400:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_KONTRON_S1901)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:400:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:401:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_CUST_PRIVATE_MAX)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:401:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:318:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:412:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_CHIP_TYPE_CASE(CVMX_CHIP_TYPE_NULL)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:412:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:413:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_CHIP_TYPE_CASE(CVMX_CHIP_SIM_TYPE_DEPRECATED)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:413:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:414:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_CHIP_TYPE_CASE(CVMX_CHIP_TYPE_OCTEON_SAMPLE)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:414:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                             ^
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:415:3: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                   ENUM_CHIP_TYPE_CASE(CVMX_CHIP_TYPE_MAX)
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                          ~~~^~~~
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:415:3: note: use array indexing to silence this warning
   arch/mips/include/asm/octeon/cvmx-bootinfo.h:407:20: note: expanded from macro 'ENUM_CHIP_TYPE_CASE'
           case x: return(#x + 15);        /* Skip CVMX_CHIP_TYPE */
                             ^
   In file included from arch/mips/cavium-octeon/crypto/octeon-sha1.c:23:
   In file included from include/crypto/internal/hash.h:11:
   In file included from include/crypto/algapi.h:13:
   In file included from include/linux/skbuff.h:28:
   In file included from include/net/checksum.h:22:
>> arch/mips/include/asm/checksum.h:195:9: error: unsupported inline asm: input with type 'unsigned long' matching output with type '__wsum' (aka 'unsigned int')
           : "0" ((__force unsigned long)daddr),
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   79 warnings and 1 error generated.
..


vim +195 arch/mips/include/asm/checksum.h

^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  162  
01cfbad79a5e2b arch/mips/include/asm/checksum.h Alexander Duyck 2016-03-11  163  static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
01cfbad79a5e2b arch/mips/include/asm/checksum.h Alexander Duyck 2016-03-11  164  					__u32 len, __u8 proto,
8e3d8433d8c22c include/asm-mips/checksum.h      Al Viro         2006-11-14  165  					__wsum sum)
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  166  {
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  167  	__asm__(
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  168  	"	.set	push		# csum_tcpudp_nofold\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  169  	"	.set	noat		\n"
875d43e72b5bf2 include/asm-mips/checksum.h      Ralf Baechle    2005-09-03  170  #ifdef CONFIG_32BIT
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  171  	"	addu	%0, %2		\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  172  	"	sltu	$1, %0, %2	\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  173  	"	addu	%0, $1		\n"
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  174  
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  175  	"	addu	%0, %3		\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  176  	"	sltu	$1, %0, %3	\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  177  	"	addu	%0, $1		\n"
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  178  
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  179  	"	addu	%0, %4		\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  180  	"	sltu	$1, %0, %4	\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  181  	"	addu	%0, $1		\n"
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  182  #endif
875d43e72b5bf2 include/asm-mips/checksum.h      Ralf Baechle    2005-09-03  183  #ifdef CONFIG_64BIT
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  184  	"	daddu	%0, %2		\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  185  	"	daddu	%0, %3		\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  186  	"	daddu	%0, %4		\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  187  	"	dsll32	$1, %0, 0	\n"
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  188  	"	daddu	%0, $1		\n"
66fd848cadaa6b arch/mips/include/asm/checksum.h Ralf Baechle    2017-01-26  189  	"	sltu	$1, %0, $1	\n"
e97288386a316e include/asm-mips/checksum.h      Ralf Baechle    2005-09-20  190  	"	dsra32	%0, %0, 0	\n"
66fd848cadaa6b arch/mips/include/asm/checksum.h Ralf Baechle    2017-01-26  191  	"	addu	%0, $1		\n"
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  192  #endif
04988d6fda5c1c include/asm-mips/checksum.h      Thiemo Seufer   2005-07-08  193  	"	.set	pop"
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  194  	: "=r" (sum)
66218da212bf14 include/asm-mips/checksum.h      Atsushi Nemoto  2007-01-24 @195  	: "0" ((__force unsigned long)daddr),
66218da212bf14 include/asm-mips/checksum.h      Atsushi Nemoto  2007-01-24  196  	  "r" ((__force unsigned long)saddr),
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  197  #ifdef __MIPSEL__
8e3d8433d8c22c include/asm-mips/checksum.h      Al Viro         2006-11-14  198  	  "r" ((proto + len) << 8),
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  199  #else
8e3d8433d8c22c include/asm-mips/checksum.h      Al Viro         2006-11-14  200  	  "r" (proto + len),
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  201  #endif
1d464c26b56252 include/asm-mips/checksum.h      Dave Johnson    2007-04-18  202  	  "r" ((__force unsigned long)sum));
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  203  
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  204  	return sum;
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  205  }
b4b5015a1c1450 arch/mips/include/asm/checksum.h Ralf Baechle    2014-12-17  206  #define csum_tcpudp_nofold csum_tcpudp_nofold
^1da177e4c3f41 include/asm-mips/checksum.h      Linus Torvalds  2005-04-16  207  

:::::: The code at line 195 was first introduced by commit
:::::: 66218da212bf141532d678a699f5789c78145ab1 [MIPS] Fix wrong checksum calculation on 64-bit MIPS

:::::: TO: Atsushi Nemoto <anemo@....ocn.ne.jp>
:::::: CC: Ralf Baechle <ralf@...ux-mips.org>

-- 
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