Re: [kbuild-all] Re: 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')

From: Chen, Rong A
Date: Fri May 20 2022 - 04:38:47 EST

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On 5/20/2022 1:45 AM, Paul Cercueil wrote:

Hi Bot,

Le ven., mai 20 2022 at 01:23:43 +0800, kernel test robot <lkp@xxxxxxxxx> a écrit :
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

I have no idea how that error could be even remotely related to the commit above.

Hi Paul,

Sorry for the inconvience, the error is not introduced by the commit,
it's only bisected to it after kconfig changed.

Best Regards,
Rong Chen

About the real issue: Maybe the last "addu" in csum_tcpudp_nofold() should be a "daddu"?

Cheers,
-Paul

date:   1 year, 8 months ago
config: mips-randconfig-r036-20220519 (https://download.01.org/0day-ci/archive/20220520/202205200128.layu7VXF-lkp@xxxxxxxxx/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@xxxxxxxxx>

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@xxxxxxxxxxxxx>
:::::: CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

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