:::::: :::::: Manual check reason: "commit no functional change" ::::::
CC: [email protected] BCC: [email protected] CC: [email protected] TO: Mark Rutland <[email protected]> CC: Catalin Marinas <[email protected]> CC: Joey Gouly <[email protected]> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 515f71412bb73ebd7f41f90e1684fc80b8730789 commit: 4d1c2ee2709fd6e1655206cafcdb22737f5d7379 arm64: entry: move bulk of ret_to_user to C date: 12 months ago :::::: branch date: 2 hours ago :::::: commit date: 12 months ago config: arm64-alldefconfig (https://download.01.org/0day-ci/archive/20220724/[email protected]/config) compiler: aarch64-linux-gcc (GCC) 12.1.0 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4d1c2ee2709fd6e1655206cafcdb22737f5d7379 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 4d1c2ee2709fd6e1655206cafcdb22737f5d7379 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kernel/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <[email protected]> Note: functions only called from assembly code should be annotated with the asmlinkage attribute All warnings (new ones prefixed by >>): >> arch/arm64/kernel/signal.c:927:6: warning: no previous prototype for >> 'do_notify_resume' [-Wmissing-prototypes] 927 | void do_notify_resume(struct pt_regs *regs, unsigned long thread_flags) | ^~~~~~~~~~~~~~~~ vim +/do_notify_resume +927 arch/arm64/kernel/signal.c 873c3e89777c8c Will Deacon 2021-06-08 926 4d1c2ee2709fd6 Mark Rutland 2021-08-02 @927 void do_notify_resume(struct pt_regs *regs, unsigned long thread_flags) 2c020ed8d148f7 Catalin Marinas 2012-03-05 928 { a2048e34d4655c Thomas Garnier 2017-09-07 929 do { 421dd6fa6709eb Chris Metcalf 2016-07-14 930 if (thread_flags & _TIF_NEED_RESCHED) { 8d66772e869e79 James Morse 2017-11-02 931 /* Unmask Debug and SError for the next task */ 8d66772e869e79 James Morse 2017-11-02 932 local_daif_restore(DAIF_PROCCTX_NOIRQ); 8d66772e869e79 James Morse 2017-11-02 933 421dd6fa6709eb Chris Metcalf 2016-07-14 934 schedule(); 421dd6fa6709eb Chris Metcalf 2016-07-14 935 } else { 8d66772e869e79 James Morse 2017-11-02 936 local_daif_restore(DAIF_PROCCTX); 421dd6fa6709eb Chris Metcalf 2016-07-14 937 9842ceae9fa8de Pratyush Anand 2016-11-02 938 if (thread_flags & _TIF_UPROBE) 9842ceae9fa8de Pratyush Anand 2016-11-02 939 uprobe_notify_resume(regs); 9842ceae9fa8de Pratyush Anand 2016-11-02 940 637ec831ea4f09 Vincenzo Frascino 2019-09-16 941 if (thread_flags & _TIF_MTE_ASYNC_FAULT) { 637ec831ea4f09 Vincenzo Frascino 2019-09-16 942 clear_thread_flag(TIF_MTE_ASYNC_FAULT); 637ec831ea4f09 Vincenzo Frascino 2019-09-16 943 send_sig_fault(SIGSEGV, SEGV_MTEAERR, 637ec831ea4f09 Vincenzo Frascino 2019-09-16 944 (void __user *)NULL, current); 637ec831ea4f09 Vincenzo Frascino 2019-09-16 945 } 637ec831ea4f09 Vincenzo Frascino 2019-09-16 946 192caabd4dd92c Jens Axboe 2020-10-22 947 if (thread_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL)) 2c020ed8d148f7 Catalin Marinas 2012-03-05 948 do_signal(regs); 2c020ed8d148f7 Catalin Marinas 2012-03-05 949 2c020ed8d148f7 Catalin Marinas 2012-03-05 950 if (thread_flags & _TIF_NOTIFY_RESUME) { 2c020ed8d148f7 Catalin Marinas 2012-03-05 951 tracehook_notify_resume(regs); 409d5db49867c2 Will Deacon 2018-06-20 952 rseq_handle_notify_resume(NULL, regs); 873c3e89777c8c Will Deacon 2021-06-08 953 873c3e89777c8c Will Deacon 2021-06-08 954 /* 873c3e89777c8c Will Deacon 2021-06-08 955 * If we reschedule after checking the affinity 873c3e89777c8c Will Deacon 2021-06-08 956 * then we must ensure that TIF_NOTIFY_RESUME 873c3e89777c8c Will Deacon 2021-06-08 957 * is set so that we check the affinity again. 873c3e89777c8c Will Deacon 2021-06-08 958 * Since tracehook_notify_resume() clears the 873c3e89777c8c Will Deacon 2021-06-08 959 * flag, ensure that the compiler doesn't move 873c3e89777c8c Will Deacon 2021-06-08 960 * it after the affinity check. 873c3e89777c8c Will Deacon 2021-06-08 961 */ 873c3e89777c8c Will Deacon 2021-06-08 962 barrier(); 873c3e89777c8c Will Deacon 2021-06-08 963 873c3e89777c8c Will Deacon 2021-06-08 964 if (cpu_affinity_invalid(regs)) 873c3e89777c8c Will Deacon 2021-06-08 965 force_sig(SIGKILL); 2c020ed8d148f7 Catalin Marinas 2012-03-05 966 } 005f78cd884944 Ard Biesheuvel 2014-05-08 967 005f78cd884944 Ard Biesheuvel 2014-05-08 968 if (thread_flags & _TIF_FOREIGN_FPSTATE) 005f78cd884944 Ard Biesheuvel 2014-05-08 969 fpsimd_restore_current_state(); 421dd6fa6709eb Chris Metcalf 2016-07-14 970 } 005f78cd884944 Ard Biesheuvel 2014-05-08 971 8d66772e869e79 James Morse 2017-11-02 972 local_daif_mask(); 421dd6fa6709eb Chris Metcalf 2016-07-14 973 thread_flags = READ_ONCE(current_thread_info()->flags); 421dd6fa6709eb Chris Metcalf 2016-07-14 974 } while (thread_flags & _TIF_WORK_MASK); 2c020ed8d148f7 Catalin Marinas 2012-03-05 975 } 94b07c1f8c39c6 Dave Martin 2018-06-01 976 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
