linux-kernel - {standard input}:5625: Error: Unable to parse register name $fp

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Message-ID: <202103050329.5inRufHf-lkp@intel.com>
Date:   Fri, 5 Mar 2021 03:27:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     WANG Xuerui <git@...0n.name>
Cc:     linux-kernel@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: {standard input}:5625: Error: Unable to parse register name $fp

Hi WANG,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f69d02e37a85645aa90d18cacfff36dba370f797
commit: ec7a93188a75b57b9f704db6862e7137f01aa80b MIPS: emulate CPUCFG instruction on older Loongson64 cores
date:   10 months ago
config: mips-randconfig-p002-20210304 (attached as .config)
compiler: mips64el-linux-gcc (GCC) 9.3.0
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ec7a93188a75b57b9f704db6862e7137f01aa80b
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout ec7a93188a75b57b9f704db6862e7137f01aa80b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips 

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

All errors (new ones prefixed by >>):

   In file included from include/linux/bits.h:23,
                    from include/linux/bitops.h:5,
                    from include/linux/kernel.h:12,
                    from arch/mips/kernel/cpu-probe.c:11:
   arch/mips/kernel/cpu-probe.c: In function 'decode_config5':
   include/linux/bits.h:26:28: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
      26 |   __builtin_constant_p((l) > (h)), (l) > (h), 0)))
         |                            ^
   include/linux/build_bug.h:16:62: note: in definition of macro 'BUILD_BUG_ON_ZERO'
      16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
         |                                                              ^
   include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK'
      39 |  (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
         |   ^~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/cpu-probe.c:1028:20: note: in expansion of macro 'GENMASK'
    1028 |    if (asid_mask > GENMASK(max_mmid_width - 1, 0)) {
         |                    ^~~~~~~
   include/linux/bits.h:26:40: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
      26 |   __builtin_constant_p((l) > (h)), (l) > (h), 0)))
         |                                        ^
   include/linux/build_bug.h:16:62: note: in definition of macro 'BUILD_BUG_ON_ZERO'
      16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
         |                                                              ^
   include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK'
      39 |  (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
         |   ^~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/cpu-probe.c:1028:20: note: in expansion of macro 'GENMASK'
    1028 |    if (asid_mask > GENMASK(max_mmid_width - 1, 0)) {
         |                    ^~~~~~~
   include/linux/bits.h:26:28: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
      26 |   __builtin_constant_p((l) > (h)), (l) > (h), 0)))
         |                            ^
   include/linux/build_bug.h:16:62: note: in definition of macro 'BUILD_BUG_ON_ZERO'
      16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
         |                                                              ^
   include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK'
      39 |  (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
         |   ^~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/cpu-probe.c:1031:17: note: in expansion of macro 'GENMASK'
    1031 |     asid_mask = GENMASK(max_mmid_width - 1, 0);
         |                 ^~~~~~~
   include/linux/bits.h:26:40: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
      26 |   __builtin_constant_p((l) > (h)), (l) > (h), 0)))
         |                                        ^
   include/linux/build_bug.h:16:62: note: in definition of macro 'BUILD_BUG_ON_ZERO'
      16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
         |                                                              ^
   include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK'
      39 |  (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
         |   ^~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/cpu-probe.c:1031:17: note: in expansion of macro 'GENMASK'
    1031 |     asid_mask = GENMASK(max_mmid_width - 1, 0);
         |                 ^~~~~~~
   {standard input}: Assembler messages:
>> {standard input}:5625: Error: Unable to parse register name $fp
   {standard input}:5626: Error: Unable to parse register name $fp

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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