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Subject[hch-misc:um-set_fs 1/1] arch/um/include/asm/uaccess.h:53:19: error: implicit declaration of function 'get_unaligned'; did you mean 'get_cmdline'?
tree:   git://git.infradead.org/users/hch/misc.git um-set_fs
head: 969a5fb627a0faf0402f8b7e211e1a6398b73736
commit: 969a5fb627a0faf0402f8b7e211e1a6398b73736 [1/1] um: remove set_fs
config: um-x86_64_defconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
git remote add hch-misc git://git.infradead.org/users/hch/misc.git
git fetch --no-tags hch-misc um-set_fs
git checkout 969a5fb627a0faf0402f8b7e211e1a6398b73736
# save the attached .config to linux build tree
make W=1 ARCH=um SUBARCH=x86_64

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 >>):

In file included from include/linux/uaccess.h:11,
from include/linux/sched/task.h:11,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:33,
from include/linux/huge_mm.h:8,
from include/linux/mm.h:725,
from mm/maccess.c:6:
mm/maccess.c: In function 'copy_from_kernel_nofault':
>> arch/um/include/asm/uaccess.h:53:19: error: implicit declaration of function 'get_unaligned'; did you mean 'get_cmdline'? [-Werror=implicit-function-declaration]
53 | *((type *)dst) = get_unaligned((type *)(src)); \
| ^~~~~~~~~~~~~
mm/maccess.c:19:3: note: in expansion of macro '__get_kernel_nofault'
19 | __get_kernel_nofault(dst, src, type, err_label); \
| ^~~~~~~~~~~~~~~~~~~~
mm/maccess.c:31:2: note: in expansion of macro 'copy_from_kernel_nofault_loop'
31 | copy_from_kernel_nofault_loop(dst, src, size, u64, Efault);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mm/maccess.c: In function 'copy_to_kernel_nofault':
>> arch/um/include/asm/uaccess.h:60:2: error: implicit declaration of function 'put_unaligned' [-Werror=implicit-function-declaration]
60 | put_unaligned(*((type *)src), (type *)(dst)); \
| ^~~~~~~~~~~~~
mm/maccess.c:45:3: note: in expansion of macro '__put_kernel_nofault'
45 | __put_kernel_nofault(dst, src, type, err_label); \
| ^~~~~~~~~~~~~~~~~~~~
mm/maccess.c:54:2: note: in expansion of macro 'copy_to_kernel_nofault_loop'
54 | copy_to_kernel_nofault_loop(dst, src, size, u64, Efault);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors


vim +53 arch/um/include/asm/uaccess.h

50
51 #define __get_kernel_nofault(dst, src, type, err_label) \
52 do { \
> 53 *((type *)dst) = get_unaligned((type *)(src)); \
54 if (0) /* make sure the label looks used to the compiler */ \
55 goto err_label; \
56 } while (0)
57
58 #define __put_kernel_nofault(dst, src, type, err_label) \
59 do { \
> 60 put_unaligned(*((type *)src), (type *)(dst)); \
61 if (0) /* make sure the label looks used to the compiler */ \
62 goto err_label; \
63 } while (0)
64

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