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Message-ID: <202210180436.ruWBhXRe-lkp@intel.com>
Date:   Tue, 18 Oct 2022 04:23:17 +0800
From:   kernel test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: <instantiation>:99:2: error: Unable to parse register name $fp

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   bbb8ceb5e2421184db9560e9d2cfaf858e1db616
commit: 15f3d81a8c8a564cbc8642cf95c548d02db035a7 MIPS: use simpler access_ok()
date:   8 months ago
config: mips-buildonly-randconfig-r003-20221017
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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-mipsel-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=15f3d81a8c8a564cbc8642cf95c548d02db035a7
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 15f3d81a8c8a564cbc8642cf95c548d02db035a7
        # 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

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

All errors (new ones prefixed by >>):

   arch/mips/kernel/signal.c:439:5: warning: no previous prototype for function 'setup_sigcontext' [-Wmissing-prototypes]
   int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
       ^
   arch/mips/kernel/signal.c:439:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
   ^
   static 
   arch/mips/kernel/signal.c:516:5: warning: no previous prototype for function 'restore_sigcontext' [-Wmissing-prototypes]
   int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
       ^
   arch/mips/kernel/signal.c:516:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
   ^
   static 
   arch/mips/kernel/signal.c:637:17: warning: no previous prototype for function 'sys_sigreturn' [-Wmissing-prototypes]
   asmlinkage void sys_sigreturn(void)
                   ^
   arch/mips/kernel/signal.c:637:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
   asmlinkage void sys_sigreturn(void)
              ^
              static 
   arch/mips/kernel/signal.c:674:17: warning: no previous prototype for function 'sys_rt_sigreturn' [-Wmissing-prototypes]
   asmlinkage void sys_rt_sigreturn(void)
                   ^
   arch/mips/kernel/signal.c:674:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
   asmlinkage void sys_rt_sigreturn(void)
              ^
              static 
   arch/mips/kernel/signal.c:904:17: warning: no previous prototype for function 'do_notify_resume' [-Wmissing-prototypes]
   asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,
                   ^
   arch/mips/kernel/signal.c:904:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
   asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,
              ^
              static 
>> <instantiation>:99:2: error: Unable to parse register name $fp
           .error  "Unable to parse register name $fp"
           ^
   <instantiation>:104:2: note: while in macro instantiation
           parse_r __rs, $fp
           ^
   arch/mips/include/asm/msa.h:213:1: note: while in macro instantiation
   __BUILD_MSA_CTL_REG(csr, 1)
   ^
   arch/mips/include/asm/msa.h:205:2: note: expanded from macro '__BUILD_MSA_CTL_REG'
           _ASM_SET_CTCMSA                                         \
           ^
   arch/mips/include/asm/msa.h:172:2: note: expanded from macro '_ASM_SET_CTCMSA'
           _ASM_MACRO_2R(ctcmsa, cd, rs,                                   \
           ^
   arch/mips/include/asm/mipsregs.h:1342:11: note: expanded from macro '_ASM_MACRO_2R'
                   ".endm\n\t"
                           ^
   <inline asm>:111:3: note: instantiated into assembly here
                   ctcmsa  $1, $fp
                   ^
   5 warnings and 1 error generated.

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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