* [hnaz-linux-mm:master 95/340] include/linux/sched/signal.h:383:6: error: implicit declaration of function 'user_mode'
@ 2020-03-10 7:01 kbuild test robot
0 siblings, 0 replies; only message in thread
From: kbuild test robot @ 2020-03-10 7:01 UTC (permalink / raw)
To: Peter Xu
Cc: kbuild-all, Johannes Weiner, Andrew Morton, Linux Memory Management List
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tree: https://github.com/hnaz/linux-mm master
head: 5d9ee416b5701096536c7a63c04dbe25012baa9e
commit: 76e15e67350bfb1e0b1b151255c1d0b075143424 [95/340] mm: return faster for non-fatal signals in user mode faults
config: alpha-defconfig (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 76e15e67350bfb1e0b1b151255c1d0b075143424
# save the attached .config to linux build tree
GCC_VERSION=9.2.0 make.cross ARCH=alpha
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from include/asm-generic/bug.h:5,
from arch/alpha/include/asm/bug.h:23,
from include/linux/bug.h:5,
from include/linux/thread_info.h:12,
from include/asm-generic/current.h:5,
from ./arch/alpha/include/generated/asm/current.h:1,
from include/linux/sched.h:12,
from arch/alpha/kernel/asm-offsets.c:10:
include/linux/sched/signal.h: In function 'fault_signal_pending':
include/linux/sched/signal.h:381:33: error: 'VM_FAULT_RETRY' undeclared (first use in this function)
381 | return unlikely((fault_flags & VM_FAULT_RETRY) &&
| ^~~~~~~~~~~~~~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/sched/signal.h:381:33: note: each undeclared identifier is reported only once for each function it appears in
381 | return unlikely((fault_flags & VM_FAULT_RETRY) &&
| ^~~~~~~~~~~~~~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
>> include/linux/sched/signal.h:383:6: error: implicit declaration of function 'user_mode' [-Werror=implicit-function-declaration]
383 | (user_mode(regs) && signal_pending(current))));
| ^~~~~~~~~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:101: arch/alpha/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1113: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:180: sub-make] Error 2
20 real 4 user 7 sys 59.21% cpu make prepare
vim +/user_mode +383 include/linux/sched/signal.h
371
372 /*
373 * This should only be used in fault handlers to decide whether we
374 * should stop the current fault routine to handle the signals
375 * instead, especially with the case where we've got interrupted with
376 * a VM_FAULT_RETRY.
377 */
378 static inline bool fault_signal_pending(unsigned int fault_flags,
379 struct pt_regs *regs)
380 {
381 return unlikely((fault_flags & VM_FAULT_RETRY) &&
382 (fatal_signal_pending(current) ||
> 383 (user_mode(regs) && signal_pending(current))));
384 }
385
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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