8:07 a.m.
Hi Mark,
[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on powerpc/next linus/master tip/core/entry v5.13-rc6
next-20210616]
[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]
url:
https://github.com/0day-ci/linux/commits/Mark-Rutland/thread_info-use-hel...
base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: arm64-randconfig-p001-20210615 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
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
#
https://github.com/0day-ci/linux/commit/a1022e40673660308b0f52aa06bc5798d...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Mark-Rutland/thread_info-use-helpers-to-snapshot-thread-flags/20210616-183127
git checkout a1022e40673660308b0f52aa06bc5798d7575eba
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
arch/arm64/kernel/signal.c:927:17: warning: no previous prototype for
'do_notify_resume' [-Wmissing-prototypes]
927 | asmlinkage void do_notify_resume(struct pt_regs *regs,
| ^~~~~~~~~~~~~~~~
arch/arm64/kernel/signal.c: In function 'do_notify_resume':
> arch/arm64/kernel/signal.c:974:18: error: implicit declaration of
function 'read_thead_flags'; did you mean 'read_thread_flags'?
[-Werror=implicit-function-declaration]
974 | thread_flags =
read_thead_flags();
| ^~~~~~~~~~~~~~~~
| read_thread_flags
cc1: some warnings being treated as errors
vim +974 arch/arm64/kernel/signal.c
926
927 asmlinkage void do_notify_resume(struct pt_regs *regs,
928 unsigned long thread_flags)
929 {
930 do {
931 if (thread_flags & _TIF_NEED_RESCHED) {
932 /* Unmask Debug and SError for the next task */
933 local_daif_restore(DAIF_PROCCTX_NOIRQ);
934
935 schedule();
936 } else {
937 local_daif_restore(DAIF_PROCCTX);
938
939 if (thread_flags & _TIF_UPROBE)
940 uprobe_notify_resume(regs);
941
942 if (thread_flags & _TIF_MTE_ASYNC_FAULT) {
943 clear_thread_flag(TIF_MTE_ASYNC_FAULT);
944 send_sig_fault(SIGSEGV, SEGV_MTEAERR,
945 (void __user *)NULL, current);
946 }
947
948 if (thread_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
949 do_signal(regs);
950
951 if (thread_flags & _TIF_NOTIFY_RESUME) {
952 tracehook_notify_resume(regs);
953 rseq_handle_notify_resume(NULL, regs);
954
955 /*
956 * If we reschedule after checking the affinity
957 * then we must ensure that TIF_NOTIFY_RESUME
958 * is set so that we check the affinity again.
959 * Since tracehook_notify_resume() clears the
960 * flag, ensure that the compiler doesn't move
961 * it after the affinity check.
962 */
963 barrier();
964
965 if (cpu_affinity_invalid(regs))
966 force_sig(SIGKILL);
967 }
968
969 if (thread_flags & _TIF_FOREIGN_FPSTATE)
970 fpsimd_restore_current_state();
971 }
972
973 local_daif_mask();
974 thread_flags = read_thead_flags();
975 } while
(thread_flags & _TIF_WORK_MASK);
976 }
977
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org