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')

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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.
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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