5:12 p.m.
Hi Thomas,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: fb3b0673b7d5b477ed104949450cd511337ba3c6
commit: 9482fd71dbb8f0d1a61821a83e467dc0a9d7b429 hrtimer: Use raw_cpu_ptr() in
clock_was_set()
date: 5 months ago
config: mips-randconfig-r032-20220114
(https://download.01.org/0day-ci/archive/20220114/202201141442.FVgxOEDt-lk...)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project
82c8aca93488730ce8f66101e0f3538f14b551dd)
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 mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 9482fd71dbb8f0d1a61821a83e467dc0a9d7b429
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir
ARCH=mips SHELL=/bin/bash kernel/time/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
kernel/time/hrtimer.c:120:21: warning: initializer overrides prior initialization of
this subobject
= HRTIMER_BASE_REALTIME,
^~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:118:27: note: previous initialization is here
[0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES,
^~~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:121:22: warning: initializer overrides prior initialization of
this subobject
= HRTIMER_BASE_MONOTONIC,
^~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:118:27: note: previous initialization is here
[0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES,
^~~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:122:21: warning: initializer overrides prior initialization of
this subobject
= HRTIMER_BASE_BOOTTIME,
^~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:118:27: note: previous initialization is here
[0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES,
^~~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:123:17: warning: initializer overrides prior initialization of
this subobject
= HRTIMER_BASE_TAI,
^~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:118:27: note: previous initialization is here
[0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES,
^~~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:276:20: warning: unused function 'is_migration_base'
static inline bool is_migration_base(struct hrtimer_clock_base
^
> kernel/time/hrtimer.c:650:19: warning: unused function
'hrtimer_hres_active'
static inline int hrtimer_hres_active(void)
^
kernel/time/hrtimer.c:1887:20: warning: unused function
'__hrtimer_peek_ahead_timers'
static inline void __hrtimer_peek_ahead_timers(void) { }
^
fatal error: error in backend: Nested variants found in inline asm string: ' .set
push
.set mips64r2
.if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data
__attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch")))
__if_trace = $( .func = __func__, .file = "arch/mips/include/asm/bitops.h",
.line = 105, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept
1; sync 0x00; .endr; .set pop; .else; ; .endif
1: ll $0, $1
or $0, $2
sc $0, $1
beqz $0, 1b
.set pop
'
clang-14: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 14.0.0 (git://gitmirror/llvm_project
82c8aca93488730ce8f66101e0f3538f14b551dd)
Target: mipsel-unknown-linux
Thread model: posix
InstalledDir: /opt/cross/clang-82c8aca934/bin
clang-14: note: diagnostic msg:
Makefile arch include kernel nr_bisected scripts source usr
vim +/hrtimer_hres_active +650 kernel/time/hrtimer.c
28bfd18bf3daa5 Anna-Maria Gleixner 2017-12-21 649
28bfd18bf3daa5 Anna-Maria Gleixner 2017-12-21 @650 static inline int
hrtimer_hres_active(void)
28bfd18bf3daa5 Anna-Maria Gleixner 2017-12-21 651 {
28bfd18bf3daa5 Anna-Maria Gleixner 2017-12-21 652 return
__hrtimer_hres_active(this_cpu_ptr(&hrtimer_bases));
28bfd18bf3daa5 Anna-Maria Gleixner 2017-12-21 653 }
28bfd18bf3daa5 Anna-Maria Gleixner 2017-12-21 654
:::::: The code at line 650 was first introduced by commit
:::::: 28bfd18bf3daa5db8bb3422ea7138c8b7d2444ac hrtimer: Make the
hrtimer_cpu_base::hres_active field unconditional, to simplify the code
:::::: TO: Anna-Maria Gleixner <anna-maria(a)linutronix.de>
:::::: CC: Ingo Molnar <mingo(a)kernel.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org