Re: [PATCH v2] fs/pipe: Deinitialize the watch_queue when pipe is freed

[kernel test robot <lkp@intel.com>]

Hi Haimin,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.18-rc6 next-20220509]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/intel-lab-lkp/linux/commits/Haimin-Zhang/fs-pipe-Deinitialize-the-watch_queue-when-pipe-is-freed/20220509-212415
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git c5eb0a61238dd6faf37f58c9ce61c9980aaffd7a
config: s390-randconfig-r004-20220509 (https://download.01.org/0day-ci/archive/20220510/202205100814.M4Aiy8hF-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 3abb68a626160e019c30a4860e569d7bc75e486a)
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 s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/22e9d0a2c66d49444376e55348c8a6fa26e6d150
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Haimin-Zhang/fs-pipe-Deinitialize-the-watch_queue-when-pipe-is-freed/20220509-212415
        git checkout 22e9d0a2c66d49444376e55348c8a6fa26e6d150
        # 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=s390 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   <inline asm>:5:5: error: expected absolute expression
   .if 6651b-6641b > 254
       ^
   <inline asm>:6:2: error: cpu alternatives does not support instructions blocks > 254 bytes
           .error "cpu alternatives does not support instructions blocks > 254 bytes"
           ^
   <inline asm>:8:5: error: expected absolute expression
   .if (6651b-6641b) % 2
       ^
   <inline asm>:9:2: error: cpu alternatives instructions length is odd
           .error "cpu alternatives instructions length is odd"
           ^
   <inline asm>:15:5: error: expected absolute expression
   .if -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) > 6
       ^
>> <inline asm>:18:8: error: unexpected token in '.rept' directive
           .rept (-(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) - (6620b-662b)) / 2
                 ^
   <inline asm>:21:8: error: unexpected token in '.rept' directive
           .rept -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) / 6
                 ^
>> <inline asm>:22:2: error: unknown directive
           .brcl 0,0
           ^
>> <inline asm>:23:7: error: unmatched '.endr' directive
           .endr
                ^
   <inline asm>:24:8: error: unexpected token in '.rept' directive
           .rept -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) % 6 / 4
                 ^
   <inline asm>:26:7: error: unmatched '.endr' directive
           .endr
                ^
   <inline asm>:27:8: error: unexpected token in '.rept' directive
           .rept -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) % 6 % 4 / 2
                 ^
   <inline asm>:29:6: error: unmatched '.endr' directive
   .endr
        ^
   <inline asm>:32:5: error: expected absolute expression
   .if 662b-661b > 254
       ^
   <inline asm>:33:2: error: cpu alternatives does not support instructions blocks > 254 bytes
           .error "cpu alternatives does not support instructions blocks > 254 bytes"
           ^
   <inline asm>:35:5: error: expected absolute expression
   .if (662b-661b) % 2
       ^
   <inline asm>:36:2: error: cpu alternatives instructions length is odd
           .error "cpu alternatives instructions length is odd"
           ^
   In file included from kernel/watch_queue.c:11:
   In file included from include/linux/module.h:14:
   In file included from include/linux/buildid.h:5:
   In file included from include/linux/mm_types.h:8:
   In file included from include/linux/kref.h:16:
   In file included from include/linux/spinlock.h:93:
   arch/s390/include/asm/spinlock.h:81:3: error: expected absolute expression
                   ALTERNATIVE("", ".insn rre,0xb2fa0000,7,0", 49) /* NIAI 7 */
                   ^
   arch/s390/include/asm/alternative.h:118:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTINSTR_REPLACEMENT'
           INSTR_LEN_SANITY_CHECK(altinstr_len(num))
           ^
   arch/s390/include/asm/alternative.h:62:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           ".if " len " > 254\n"                                           \
            ^
   <inline asm>:5:5: note: instantiated into assembly here
   .if 6651b-6641b > 254
       ^
   In file included from kernel/watch_queue.c:11:
   In file included from include/linux/module.h:14:
   In file included from include/linux/buildid.h:5:
   In file included from include/linux/mm_types.h:8:
   In file included from include/linux/kref.h:16:
   In file included from include/linux/spinlock.h:93:
   arch/s390/include/asm/spinlock.h:81:3: error: cpu alternatives does not support instructions blocks > 254 bytes
                   ALTERNATIVE("", ".insn rre,0xb2fa0000,7,0", 49) /* NIAI 7 */
                   ^
   arch/s390/include/asm/alternative.h:118:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTINSTR_REPLACEMENT'
           INSTR_LEN_SANITY_CHECK(altinstr_len(num))
           ^
   arch/s390/include/asm/alternative.h:63:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           "\t.error \"cpu alternatives does not support instructions "    \
            ^
   <inline asm>:6:2: note: instantiated into assembly here
           .error "cpu alternatives does not support instructions blocks > 254 bytes"
           ^
   fatal error: too many errors emitted, stopping now [-ferror-limit=]
   20 errors generated.

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