arch/s390/lib/spinlock.c:78:3: error: expected absolute expression

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f8c7e4ede46fe63ff10000669652648aab09d112
commit: 69d0db01e210e07fe915e5da91b54a867cda040f ubsan: remove CONFIG_UBSAN_OBJECT_SIZE
date:   10 days ago
config: s390-randconfig-c005-20220130 (https://download.01.org/0day-ci/archive/20220130/202201301448.qXX8mRNr-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 33b45ee44b1f32ffdbc995e6fec806271b4b3ba4)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=69d0db01e210e07fe915e5da91b54a867cda040f
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 69d0db01e210e07fe915e5da91b54a867cda040f
        # save the config file to linux build tree
        mkdir build_dir
        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@xxxxxxxxx>

All errors (new ones prefixed by >>):

   In file included from arch/s390/lib/spinlock.c:17:
   In file included from arch/s390/include/asm/io.h:75:
   include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
   #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
                                                             ^
   include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
   #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
                                                        ^
   In file included from arch/s390/lib/spinlock.c:17:
   In file included from arch/s390/include/asm/io.h:75:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
                                                             ^
   include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
   #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
                                                        ^
   In file included from arch/s390/lib/spinlock.c:17:
   In file included from arch/s390/include/asm/io.h:75:
   include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsb(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsw(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           readsl(PCI_IOBASE + addr, buffer, count);
                  ~~~~~~~~~~ ^
   include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesb(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
   include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesw(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
   include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           writesl(PCI_IOBASE + addr, buffer, count);
                   ~~~~~~~~~~ ^
>> arch/s390/lib/spinlock.c:78:3: error: expected absolute expression
                   ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
                   ^
   arch/s390/include/asm/alternative.h:111:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:106:2: 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
       ^
>> arch/s390/lib/spinlock.c:78:3: error: cpu alternatives does not support instructions blocks > 254 bytes
                   ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
                   ^
   arch/s390/include/asm/alternative.h:111:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:106:2: 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"
           ^
>> arch/s390/lib/spinlock.c:78:3: error: expected absolute expression
                   ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
                   ^
   arch/s390/include/asm/alternative.h:111:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:106:2: note: expanded from macro 'ALTINSTR_REPLACEMENT'
           INSTR_LEN_SANITY_CHECK(altinstr_len(num))
           ^
   arch/s390/include/asm/alternative.h:66:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           ".if (" len ") %% 2\n"                                          \
            ^
   <inline asm>:8:5: note: instantiated into assembly here
   .if (6651b-6641b) % 2
       ^
>> arch/s390/lib/spinlock.c:78:3: error: cpu alternatives instructions length is odd
                   ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
                   ^
   arch/s390/include/asm/alternative.h:111:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:106:2: note: expanded from macro 'ALTINSTR_REPLACEMENT'
           INSTR_LEN_SANITY_CHECK(altinstr_len(num))
           ^
   arch/s390/include/asm/alternative.h:67:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           "\t.error \"cpu alternatives instructions length is odd\"\n"    \
            ^
   <inline asm>:9:2: note: instantiated into assembly here
           .error "cpu alternatives instructions length is odd"
           ^
>> arch/s390/lib/spinlock.c:78:3: error: expected absolute expression
                   ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
                   ^
   arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTERNATIVE'
           OLDINSTR(oldinstr, 1)                                           \
           ^
   arch/s390/include/asm/alternative.h:83:2: note: expanded from macro 'OLDINSTR'
           OLDINSTR_PADDING(oldinstr, num)                                 \
           ^
   arch/s390/include/asm/alternative.h:71:3: note: expanded from macro 'OLDINSTR_PADDING'
           ".if " oldinstr_pad_len(num) " > 6\n"                           \
            ^
   <inline asm>:15:5: note: instantiated into assembly here
   .if -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) > 6
       ^
>> arch/s390/lib/spinlock.c:78:3: error: expected absolute expression
                   ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
                   ^
   arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTERNATIVE'
           OLDINSTR(oldinstr, 1)                                           \
           ^
   arch/s390/include/asm/alternative.h:85:2: note: expanded from macro 'OLDINSTR'
           INSTR_LEN_SANITY_CHECK(oldinstr_len)
           ^
   arch/s390/include/asm/alternative.h:62:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           ".if " len " > 254\n"                                           \
            ^
   <inline asm>:25:5: note: instantiated into assembly here
   .if 662b-661b > 254
       ^
>> arch/s390/lib/spinlock.c:78:3: error: cpu alternatives does not support instructions blocks > 254 bytes
                   ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
                   ^
   arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTERNATIVE'
           OLDINSTR(oldinstr, 1)                                           \
           ^
   arch/s390/include/asm/alternative.h:85:2: note: expanded from macro 'OLDINSTR'
           INSTR_LEN_SANITY_CHECK(oldinstr_len)
           ^
   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>:26:2: note: instantiated into assembly here
           .error "cpu alternatives does not support instructions blocks > 254 bytes"
           ^
>> arch/s390/lib/spinlock.c:78:3: error: expected absolute expression
                   ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
                   ^
   arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTERNATIVE'
           OLDINSTR(oldinstr, 1)                                           \
           ^
   arch/s390/include/asm/alternative.h:85:2: note: expanded from macro 'OLDINSTR'
           INSTR_LEN_SANITY_CHECK(oldinstr_len)
           ^
   arch/s390/include/asm/alternative.h:66:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           ".if (" len ") %% 2\n"                                          \
            ^
   <inline asm>:28:5: note: instantiated into assembly here
   .if (662b-661b) % 2
       ^
>> arch/s390/lib/spinlock.c:78:3: error: cpu alternatives instructions length is odd
                   ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
                   ^
   arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTERNATIVE'
           OLDINSTR(oldinstr, 1)                                           \
           ^
   arch/s390/include/asm/alternative.h:85:2: note: expanded from macro 'OLDINSTR'
           INSTR_LEN_SANITY_CHECK(oldinstr_len)
           ^
   arch/s390/include/asm/alternative.h:67:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           "\t.error \"cpu alternatives instructions length is odd\"\n"    \
            ^
   <inline asm>:29:2: note: instantiated into assembly here
           .error "cpu alternatives instructions length is odd"
           ^
   arch/s390/lib/spinlock.c:89:3: error: expected absolute expression
                   ALTERNATIVE("", ".long 0xb2fa0080", 49) /* NIAI 8 */
                   ^
   arch/s390/include/asm/alternative.h:111:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:106:2: 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
       ^
   arch/s390/lib/spinlock.c:89:3: error: cpu alternatives does not support instructions blocks > 254 bytes
                   ALTERNATIVE("", ".long 0xb2fa0080", 49) /* NIAI 8 */
                   ^
   arch/s390/include/asm/alternative.h:111:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:106:2: 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"
           ^
   arch/s390/lib/spinlock.c:89:3: error: expected absolute expression
                   ALTERNATIVE("", ".long 0xb2fa0080", 49) /* NIAI 8 */
                   ^
   arch/s390/include/asm/alternative.h:111:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:106:2: note: expanded from macro 'ALTINSTR_REPLACEMENT'
           INSTR_LEN_SANITY_CHECK(altinstr_len(num))
           ^
   arch/s390/include/asm/alternative.h:66:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           ".if (" len ") %% 2\n"                                          \
            ^
   <inline asm>:8:5: note: instantiated into assembly here
   .if (6651b-6641b) % 2
       ^
   arch/s390/lib/spinlock.c:89:3: error: cpu alternatives instructions length is odd
                   ALTERNATIVE("", ".long 0xb2fa0080", 49) /* NIAI 8 */
                   ^
   arch/s390/include/asm/alternative.h:111:2: note: expanded from macro 'ALTERNATIVE'
           ALTINSTR_REPLACEMENT(altinstr, 1)                               \
           ^
   arch/s390/include/asm/alternative.h:106:2: note: expanded from macro 'ALTINSTR_REPLACEMENT'
           INSTR_LEN_SANITY_CHECK(altinstr_len(num))
           ^
   arch/s390/include/asm/alternative.h:67:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           "\t.error \"cpu alternatives instructions length is odd\"\n"    \
            ^
   <inline asm>:9:2: note: instantiated into assembly here
           .error "cpu alternatives instructions length is odd"
           ^
   arch/s390/lib/spinlock.c:89:3: error: expected absolute expression
                   ALTERNATIVE("", ".long 0xb2fa0080", 49) /* NIAI 8 */
                   ^
   arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTERNATIVE'
           OLDINSTR(oldinstr, 1)                                           \
           ^
   arch/s390/include/asm/alternative.h:83:2: note: expanded from macro 'OLDINSTR'
           OLDINSTR_PADDING(oldinstr, num)                                 \
           ^
   arch/s390/include/asm/alternative.h:71:3: note: expanded from macro 'OLDINSTR_PADDING'
           ".if " oldinstr_pad_len(num) " > 6\n"                           \
            ^
   <inline asm>:15:5: note: instantiated into assembly here
   .if -(((6651b-6641b)-(662b-661b)) > 0) * ((6651b-6641b)-(662b-661b)) > 6
       ^
   arch/s390/lib/spinlock.c:89:3: error: expected absolute expression
                   ALTERNATIVE("", ".long 0xb2fa0080", 49) /* NIAI 8 */
                   ^
   arch/s390/include/asm/alternative.h:113:2: note: expanded from macro 'ALTERNATIVE'
           OLDINSTR(oldinstr, 1)                                           \
           ^
   arch/s390/include/asm/alternative.h:85:2: note: expanded from macro 'OLDINSTR'
           INSTR_LEN_SANITY_CHECK(oldinstr_len)
           ^
   arch/s390/include/asm/alternative.h:62:3: note: expanded from macro 'INSTR_LEN_SANITY_CHECK'
           ".if " len " > 254\n"                                           \


vim +78 arch/s390/lib/spinlock.c

b96f7d881ad942 Martin Schwidefsky 2017-03-24  72  
7f7e6e28cd3285 Martin Schwidefsky 2017-04-19  73  static inline int arch_load_niai4(int *lock)
7f7e6e28cd3285 Martin Schwidefsky 2017-04-19  74  {
7f7e6e28cd3285 Martin Schwidefsky 2017-04-19  75  	int owner;
7f7e6e28cd3285 Martin Schwidefsky 2017-04-19  76  
cceb018377a123 Heiko Carstens     2019-10-18  77  	asm_inline volatile(
f554be42fd0fd8 Vasily Gorbik      2017-10-12 @78  		ALTERNATIVE("", ".long 0xb2fa0040", 49)	/* NIAI 4 */
7f7e6e28cd3285 Martin Schwidefsky 2017-04-19  79  		"	l	%0,%1\n"
7f7e6e28cd3285 Martin Schwidefsky 2017-04-19  80  		: "=d" (owner) : "Q" (*lock) : "memory");
7f7e6e28cd3285 Martin Schwidefsky 2017-04-19  81  	return owner;
7f7e6e28cd3285 Martin Schwidefsky 2017-04-19  82  }
7f7e6e28cd3285 Martin Schwidefsky 2017-04-19  83  

:::::: The code at line 78 was first introduced by commit
:::::: f554be42fd0fd8dd14680c67f2db26b3e7de9670 s390/spinlock: use cpu alternatives to enable niai instruction

:::::: TO: Vasily Gorbik <gor@xxxxxxxxxxxxxxxxxx>
:::::: CC: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>

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




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