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SubjectRe: [PATCH] x86_64: new and improved memset()
Hi Alexey,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3 next-20190915]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Alexey-Dobriyan/x86_64-new-and-improved-memset/20190916-140315
config: um-x86_64_defconfig (attached as .config)
compiler: gcc-7 (Debian 7.4.0-11) 7.4.0
reproduce:
# save the attached .config to linux build tree
make ARCH=um SUBARCH=x86_64

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

All errors (new ones prefixed by >>):

/usr/bin/ld: arch/um/kernel/mem.o: in function `pgd_alloc':
>> mem.c:(.text+0x4a): undefined reference to `memset0_mov'
/usr/bin/ld: arch/um/kernel/mem.o: in function `pmd_alloc_one':
>> mem.c:(.text+0xd1): undefined reference to `_memset0_mov'
/usr/bin/ld: arch/um/kernel/mem.o: in function `mem_init':
>> mem.c:(.init.text+0x20): undefined reference to `_memset0_mov'
>> /usr/bin/ld: arch/um/kernel/mem.o:(.altinstr_replacement+0x1): undefined reference to `_memset0_rep_stosq'
>> /usr/bin/ld: arch/um/kernel/mem.o:(.altinstr_replacement+0x6): undefined reference to `memset0_rep_stosb'
>> /usr/bin/ld: arch/um/kernel/mem.o:(.altinstr_replacement+0xb): undefined reference to `memset0_rep_stosq'
/usr/bin/ld: arch/um/kernel/mem.o:(.altinstr_replacement+0x10): undefined reference to `memset0_rep_stosb'
/usr/bin/ld: arch/um/kernel/mem.o:(.altinstr_replacement+0x15): undefined reference to `_memset0_rep_stosq'
/usr/bin/ld: arch/um/kernel/mem.o:(.altinstr_replacement+0x1a): undefined reference to `memset0_rep_stosb'
/usr/bin/ld: arch/um/kernel/process.o: in function `copy_from_user_proc':
>> process.c:(.text+0x665): undefined reference to `memset0_mov'
/usr/bin/ld: arch/um/kernel/process.o: in function `sysemu_proc_write':
process.c:(.text+0x76a): undefined reference to `memset0_mov'
>> /usr/bin/ld: arch/um/kernel/process.o:(.altinstr_replacement+0x1): undefined reference to `memset0_rep_stosq'
>> /usr/bin/ld: arch/um/kernel/process.o:(.altinstr_replacement+0x6): undefined reference to `memset0_rep_stosb'
/usr/bin/ld: arch/um/kernel/process.o:(.altinstr_replacement+0xb): undefined reference to `memset0_rep_stosq'
/usr/bin/ld: arch/um/kernel/process.o:(.altinstr_replacement+0x10): undefined reference to `memset0_rep_stosb'
/usr/bin/ld: arch/um/drivers/net_kern.o: in function `eth_configure':
>> net_kern.c:(.text+0xbd0): undefined reference to `memset0_mov'
>> /usr/bin/ld: arch/um/drivers/net_kern.o:(.altinstr_replacement+0x1): undefined reference to `memset0_rep_stosq'
>> /usr/bin/ld: arch/um/drivers/net_kern.o:(.altinstr_replacement+0x6): undefined reference to `memset0_rep_stosb'
/usr/bin/ld: arch/um/drivers/ubd_kern.o: in function `ubd_ioctl':
>> ubd_kern.c:(.text+0x984): undefined reference to `_memset0_mov'
>> /usr/bin/ld: ubd_kern.c:(.text+0xa5a): undefined reference to `memset0_mov'
/usr/bin/ld: arch/um/drivers/ubd_kern.o: in function `io_thread':
>> ubd_kern.c:(.text+0x211f): undefined reference to `memset0_mov'
>> /usr/bin/ld: arch/um/drivers/ubd_kern.o:(.altinstr_replacement+0x1): undefined reference to `_memset0_rep_stosq'
>> /usr/bin/ld: arch/um/drivers/ubd_kern.o:(.altinstr_replacement+0x6): undefined reference to `memset0_rep_stosb'
>> /usr/bin/ld: arch/um/drivers/ubd_kern.o:(.altinstr_replacement+0xb): undefined reference to `memset0_rep_stosq'
/usr/bin/ld: arch/um/drivers/ubd_kern.o:(.altinstr_replacement+0x10): undefined reference to `memset0_rep_stosb'
/usr/bin/ld: arch/um/drivers/ubd_kern.o:(.altinstr_replacement+0x15): undefined reference to `memset0_rep_stosq'
/usr/bin/ld: arch/um/drivers/ubd_kern.o:(.altinstr_replacement+0x1a): undefined reference to `memset0_rep_stosb'
/usr/bin/ld: kernel/fork.o: in function `copy_clone_args_from_user':
>> fork.c:(.text+0x5c4): undefined reference to `memset0_mov'
/usr/bin/ld: kernel/fork.o: in function `mm_init.isra.5':
>> fork.c:(.text+0x75c): undefined reference to `_memset0_mov'
/usr/bin/ld: kernel/fork.o: in function `vm_area_alloc':
fork.c:(.text+0xaa4): undefined reference to `_memset0_mov'
/usr/bin/ld: kernel/fork.o: in function `mm_alloc':
fork.c:(.text+0xb9f): undefined reference to `_memset0_mov'
/usr/bin/ld: kernel/fork.o: in function `copy_process':
fork.c:(.text+0x1e0c): undefined reference to `_memset0_mov'

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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