Hi Huacai, kernel test robot noticed the following build errors: [auto build test ERROR on paulmck-rcu/dev] [also build test ERROR on linus/master] [cannot apply to tip/timers/nohz] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Huacai-Chen/rcu-Update-jiffies-in-rcu_cpu_stall_reset/20230810-142629 base: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev patch link: https://lore.kernel.org/r/20230810062527.3700080-1-chenhuacai%40loongson.cn patch subject: [PATCH V2 1/2] tick: Rename tick_do_update_jiffies64() and allow external usage config: powerpc-randconfig-r013-20230809 (https://download.01.org/0day-ci/archive/20230810/202308101853.wOMMd0Tf-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230810/202308101853.wOMMd0Tf-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308101853.wOMMd0Tf-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:677: arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 45 | DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 46 | (p, b, c), pio, p) | ~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:674:3: note: expanded from macro 'DEF_PCI_AC_NORET' 674 | __do_##name al; \ | ^~~~~~~~~~~~~~ <scratch space>:49:1: note: expanded from here 49 | __do_insw | ^ arch/powerpc/include/asm/io.h:615:56: note: expanded from macro '__do_insw' 615 | #define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) | ~~~~~~~~~~~~~~~~~~~~~^ In file included from kernel/time/tick-sched.c:14: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:677: arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 47 | DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 48 | (p, b, c), pio, p) | ~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:674:3: note: expanded from macro 'DEF_PCI_AC_NORET' 674 | __do_##name al; \ | ^~~~~~~~~~~~~~ <scratch space>:51:1: note: expanded from here 51 | __do_insl | ^ arch/powerpc/include/asm/io.h:616:56: note: expanded from macro '__do_insl' 616 | #define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) | ~~~~~~~~~~~~~~~~~~~~~^ In file included from kernel/time/tick-sched.c:14: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:677: arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 49 | DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 50 | (p, b, c), pio, p) | ~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:674:3: note: expanded from macro 'DEF_PCI_AC_NORET' 674 | __do_##name al; \ | ^~~~~~~~~~~~~~ <scratch space>:53:1: note: expanded from here 53 | __do_outsb | ^ arch/powerpc/include/asm/io.h:617:58: note: expanded from macro '__do_outsb' 617 | #define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) | ~~~~~~~~~~~~~~~~~~~~~^ In file included from kernel/time/tick-sched.c:14: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:677: arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 51 | DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 52 | (p, b, c), pio, p) | ~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:674:3: note: expanded from macro 'DEF_PCI_AC_NORET' 674 | __do_##name al; \ | ^~~~~~~~~~~~~~ <scratch space>:55:1: note: expanded from here 55 | __do_outsw | ^ arch/powerpc/include/asm/io.h:618:58: note: expanded from macro '__do_outsw' 618 | #define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) | ~~~~~~~~~~~~~~~~~~~~~^ In file included from kernel/time/tick-sched.c:14: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:677: arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 53 | DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 54 | (p, b, c), pio, p) | ~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:674:3: note: expanded from macro 'DEF_PCI_AC_NORET' 674 | __do_##name al; \ | ^~~~~~~~~~~~~~ <scratch space>:57:1: note: expanded from here 57 | __do_outsl | ^ arch/powerpc/include/asm/io.h:619:58: note: expanded from macro '__do_outsl' 619 | #define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) | ~~~~~~~~~~~~~~~~~~~~~^ >> kernel/time/tick-sched.c:114:4: error: call to undeclared function 'tick_do_update_jiffies_64'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 114 | tick_do_update_jiffies_64(now); | ^ kernel/time/tick-sched.c:114:4: note: did you mean 'do_update_jiffies_64'? include/linux/jiffies.h:91:6: note: 'do_update_jiffies_64' declared here 91 | void do_update_jiffies_64(s64 now); /* typedef s64 ktime_t */ | ^ 6 warnings and 1 error generated. vim +/tick_do_update_jiffies_64 +114 kernel/time/tick-sched.c 100 101 /* Check, if the jiffies need an update */ 102 if (tick_do_timer_cpu == cpu) 103 do_update_jiffies_64(now); 104 105 /* 106 * If jiffies update stalled for too long (timekeeper in stop_machine() 107 * or VMEXIT'ed for several msecs), force an update. 108 */ 109 if (ts->last_tick_jiffies != jiffies) { 110 ts->stalled_jiffies = 0; 111 ts->last_tick_jiffies = READ_ONCE(jiffies); 112 } else { 113 if (++ts->stalled_jiffies == MAX_STALLED_JIFFIES) { > 114 tick_do_update_jiffies_64(now); 115 ts->stalled_jiffies = 0; 116 ts->last_tick_jiffies = READ_ONCE(jiffies); 117 } 118 } 119 120 if (ts->inidle) 121 ts->got_idle_tick = 1; 122 } 123 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
