Re: [PATCH 27/32] s390/string: Add KMSAN support

kernel test robot
2023-11-16T21:44:15Z

Hi Ilya,

kernel test robot noticed the following build errors:

[auto build test ERROR on s390/features]
[also build test ERROR on akpm-mm/mm-everything linus/master vbabka-slab/for-next v6.7-rc1 next-20231116]
[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#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Ilya-Leoshkevich/ftrace-Unpoison-ftrace_regs-in-ftrace_ops_list_func/20231116-045608
base: https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features
patch link: https://lore.kernel.org/r/20231115203401.2495875-28-iii%40linux.ibm.com
patch subject: [PATCH 27/32] s390/string: Add KMSAN support
config: s390-debug_defconfig (https://download.01.org/0day-ci/archive/20231117/202311170550.bSBo44ix-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231117/202311170550.bSBo44ix-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311170550.bSBo44ix-lkp@intel.com/

All errors (new ones prefixed by >>):

s390-linux-ld: arch/s390/mm/vmem.o: in function `crst_table_init':
>> arch/s390/include/asm/pgalloc.h:33:(.text+0x1ba): undefined reference to `memset64'
s390-linux-ld: arch/s390/mm/vmem.o: in function `vmem_pte_alloc':
>> arch/s390/mm/vmem.c:68:(.ref.text+0x1ec): undefined reference to `memset64'
s390-linux-ld: arch/s390/mm/pgalloc.o: in function `base_pgt_alloc':
>> arch/s390/mm/pgalloc.c:241:(.text+0x184): undefined reference to `memset64'
s390-linux-ld: arch/s390/mm/pgalloc.o: in function `crst_table_init':
arch/s390/include/asm/pgalloc.h:33:(.text+0x3e8): undefined reference to `memset64'
>> s390-linux-ld: arch/s390/include/asm/pgalloc.h:33:(.text+0x568): undefined reference to `memset64'
s390-linux-ld: arch/s390/mm/pgalloc.o:arch/s390/include/asm/pgalloc.h:33: more undefined references to `memset64' follow
s390-linux-ld: lib/test_string.o: in function `memset16_selftest':
>> lib/test_string.c:19:(.init.text+0x94): undefined reference to `memset16'
s390-linux-ld: lib/test_string.o: in function `memset32_selftest':
>> lib/test_string.c:55:(.init.text+0x234): undefined reference to `memset32'
s390-linux-ld: lib/test_string.o: in function `memset64_selftest':
>> lib/test_string.c:91:(.init.text+0x3c2): undefined reference to `memset64'
s390-linux-ld: drivers/video/fbdev/core/fbcon.o: in function `scr_memsetw':
>> include/linux/vt_buffer.h:36:(.text+0x30f6): undefined reference to `memset16'
>> s390-linux-ld: include/linux/vt_buffer.h:36:(.text+0x320a): undefined reference to `memset16'
s390-linux-ld: include/linux/vt_buffer.h:36:(.text+0x32c4): undefined reference to `memset16'
s390-linux-ld: include/linux/vt_buffer.h:36:(.text+0x33b8): undefined reference to `memset16'
s390-linux-ld: include/linux/vt_buffer.h:36:(.text+0x4f60): undefined reference to `memset16'
s390-linux-ld: drivers/video/fbdev/core/fbcon.o:include/linux/vt_buffer.h:36: more undefined references to `memset16' follow
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_copy_area':
>> drivers/tty/vt/vt.c:464:(.text+0x107e): undefined reference to `memset32'
>> s390-linux-ld: drivers/tty/vt/vt.c:471:(.text+0x1104): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.c:471:(.text+0x1118): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.c:471:(.text+0x1140): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_insert':
drivers/tty/vt/vt.c:374:(.text+0x13a4): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o:drivers/tty/vt/vt.c:385: more undefined references to `memset32' follow
s390-linux-ld: drivers/tty/vt/vt.o: in function `scr_memsetw':
include/linux/vt_buffer.h:36:(.text+0x2844): undefined reference to `memset16'
s390-linux-ld: include/linux/vt_buffer.h:36:(.text+0x2932): undefined reference to `memset16'
s390-linux-ld: include/linux/vt_buffer.h:36:(.text+0x2fe8): undefined reference to `memset16'
s390-linux-ld: include/linux/vt_buffer.h:36:(.text+0x319c): undefined reference to `memset16'
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_clear_line':
drivers/tty/vt/vt.c:393:(.text+0x3f78): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_clear_lines':
drivers/tty/vt/vt.c:401:(.text+0x3fb8): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.c:401:(.text+0x3fe2): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o: in function `scr_memsetw':
include/linux/vt_buffer.h:36:(.text+0x4018): undefined reference to `memset16'
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_clear_lines':
drivers/tty/vt/vt.c:401:(.text+0x40de): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.c:401:(.text+0x4114): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.c:401:(.text+0x4134): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_clear_line':
drivers/tty/vt/vt.c:393:(.text+0x417c): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_clear_lines':
drivers/tty/vt/vt.c:401:(.text+0x41d6): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o:drivers/tty/vt/vt.c:401: more undefined references to `memset32' follow
s390-linux-ld: drivers/tty/vt/vt.o: in function `scr_memsetw':
include/linux/vt_buffer.h:36:(.text+0x46d2): undefined reference to `memset16'
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_clear_lines':
drivers/tty/vt/vt.c:401:(.text+0x4736): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.c:401:(.text+0x47b6): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.c:401:(.text+0x47f2): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.c:401:(.text+0x482e): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_clear_line':
drivers/tty/vt/vt.c:393:(.text+0x7b1a): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o: in function `scr_memsetw':
include/linux/vt_buffer.h:36:(.text+0x7b30): undefined reference to `memset16'
s390-linux-ld: drivers/tty/vt/vt.o: in function `vc_uniscr_clear_line':
drivers/tty/vt/vt.c:393:(.text+0x7c7a): undefined reference to `memset32'
s390-linux-ld: drivers/tty/vt/vt.o: in function `scr_memsetw':
include/linux/vt_buffer.h:36:(.text+0x7c9c): undefined reference to `memset16'
s390-linux-ld: drivers/block/zram/zram_drv.o: in function `memset_l':
>> include/linux/string.h:168:(.text+0x1860): undefined reference to `memset64'

vim +168 include/linux/string.h

3b3c4babd89871 Matthew Wilcox 2017-09-08 161
3b3c4babd89871 Matthew Wilcox 2017-09-08 162 static inline void *memset_l(unsigned long *p, unsigned long v,
3b3c4babd89871 Matthew Wilcox 2017-09-08 163 __kernel_size_t n)
3b3c4babd89871 Matthew Wilcox 2017-09-08 164 {
3b3c4babd89871 Matthew Wilcox 2017-09-08 165 if (BITS_PER_LONG == 32)
3b3c4babd89871 Matthew Wilcox 2017-09-08 166 return memset32((uint32_t *)p, v, n);
3b3c4babd89871 Matthew Wilcox 2017-09-08 167 else
3b3c4babd89871 Matthew Wilcox 2017-09-08 @168 return memset64((uint64_t *)p, v, n);
3b3c4babd89871 Matthew Wilcox 2017-09-08 169 }
3b3c4babd89871 Matthew Wilcox 2017-09-08 170

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