Hi Wander, kernel test robot noticed the following build errors:
[auto build test ERROR on trace/for-next] [also build test ERROR on tip/sched/core linus/master v6.16-rc4 next-20250701] [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/Wander-Lairson-Costa/trace-preemptirq-reduce-overhead-of-irq_enable-disable-tracepoints/20250701-035446 base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next patch link: https://lore.kernel.org/r/20250630195243.701516-3-wander%40redhat.com patch subject: [PATCH v2 2/2] tracing/preemptirq: Optimize preempt_disable/enable() tracepoint overhead config: powerpc-randconfig-003-20250701 (https://download.01.org/0day-ci/archive/20250701/202507011942.scsgnb2m-...@intel.com/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project e04c938cc08a90ae60440ce22d072ebc69d67ee8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250701/202507011942.scsgnb2m-...@intel.com/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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202507011942.scsgnb2m-...@intel.com/ All errors (new ones prefixed by >>): In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:14: In file included from include/linux/sem.h:5: In file included from include/uapi/linux/sem.h:5: In file included from include/linux/ipc.h:7: In file included from include/linux/rhashtable-types.h:12: In file included from include/linux/alloc_tag.h:11: In file included from include/linux/preempt.h:13: In file included from include/linux/tracepoint-defs.h:11: In file included from include/linux/atomic.h:7: In file included from arch/powerpc/include/asm/atomic.h:11: In file included from arch/powerpc/include/asm/cmpxchg.h:755: In file included from include/asm-generic/cmpxchg-local.h:6: include/linux/irqflags.h:201:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] 201 | DECLARE_TRACEPOINT(irq_enable); | ^ | int include/linux/irqflags.h:201:20: error: a parameter list without types is only allowed in a function definition 201 | DECLARE_TRACEPOINT(irq_enable); | ^ include/linux/irqflags.h:202:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] 202 | DECLARE_TRACEPOINT(irq_disable); | ^ | int include/linux/irqflags.h:202:20: error: a parameter list without types is only allowed in a function definition 202 | DECLARE_TRACEPOINT(irq_disable); | ^ include/linux/irqflags.h:277:47: error: call to undeclared function 'tracepoint_enabled'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 277 | DEFINE_LOCK_GUARD_0(irq, local_irq_disable(), local_irq_enable()) | ^ include/linux/irqflags.h:210:7: note: expanded from macro 'local_irq_enable' 210 | if (__trace_enabled(irq_enable)) \ | ^ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^ include/linux/irqflags.h:277:47: error: use of undeclared identifier 'irq_enable' 277 | DEFINE_LOCK_GUARD_0(irq, local_irq_disable(), local_irq_enable()) | ^~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:210:23: note: expanded from macro 'local_irq_enable' 210 | if (__trace_enabled(irq_enable)) \ | ^~~~~~~~~~ include/linux/irqflags.h:277:26: error: call to undeclared function 'tracepoint_enabled'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 277 | DEFINE_LOCK_GUARD_0(irq, local_irq_disable(), local_irq_enable()) | ^ include/linux/irqflags.h:219:7: note: expanded from macro 'local_irq_disable' 219 | if (__trace_enabled(irq_disable) && \ | ^ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^ include/linux/irqflags.h:277:26: error: use of undeclared identifier 'irq_disable' 277 | DEFINE_LOCK_GUARD_0(irq, local_irq_disable(), local_irq_enable()) | ^~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:219:23: note: expanded from macro 'local_irq_disable' 219 | if (__trace_enabled(irq_disable) && \ | ^~~~~~~~~~~ include/linux/irqflags.h:280:7: error: call to undeclared function 'tracepoint_enabled'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 280 | local_irq_restore(_T->flags), | ^ include/linux/irqflags.h:234:7: note: expanded from macro 'local_irq_restore' 234 | if (__trace_enabled(irq_enable) && \ | ^ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^ include/linux/irqflags.h:280:7: error: use of undeclared identifier 'irq_enable' 280 | local_irq_restore(_T->flags), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:234:23: note: expanded from macro 'local_irq_restore' 234 | if (__trace_enabled(irq_enable) && \ | ^~~~~~~~~~ include/linux/irqflags.h:279:7: error: call to undeclared function 'tracepoint_enabled'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 279 | local_irq_save(_T->flags), | ^ include/linux/irqflags.h:227:7: note: expanded from macro 'local_irq_save' 227 | if (__trace_enabled(irq_disable) && \ | ^ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^ include/linux/irqflags.h:279:7: error: use of undeclared identifier 'irq_disable' 279 | local_irq_save(_T->flags), | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:227:23: note: expanded from macro 'local_irq_save' 227 | if (__trace_enabled(irq_disable) && \ | ^~~~~~~~~~~ In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:9: In file included from include/linux/mm_types.h:8: In file included from include/linux/kref.h:16: In file included from include/linux/spinlock.h:312: >> include/linux/spinlock_api_smp.h:151:2: error: use of undeclared identifier >> '__tracepoint_irq_enable'; did you mean '__tracepoint_preempt_enable'? 151 | local_irq_restore(flags); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:234:7: note: expanded from macro 'local_irq_restore' 234 | if (__trace_enabled(irq_enable) && \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/tracepoint-defs.h:92:27: note: expanded from macro 'tracepoint_enabled' 92 | static_branch_unlikely(&(__tracepoint_##tp).key) | ^~~~~~~~~~~~~~~~~ <scratch space>:103:1: note: expanded from here 103 | __tracepoint_irq_enable | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/preempt.h:202:1: note: '__tracepoint_preempt_enable' declared here 202 | DECLARE_TRACEPOINT(preempt_enable); | ^ include/linux/tracepoint-defs.h:88:27: note: expanded from macro 'DECLARE_TRACEPOINT' 88 | extern struct tracepoint __tracepoint_##tp | ^ <scratch space>:104:1: note: expanded from here 104 | __tracepoint_preempt_enable | ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:9: In file included from include/linux/mm_types.h:8: In file included from include/linux/kref.h:16: In file included from include/linux/spinlock.h:312: >> include/linux/spinlock_api_smp.h:151:2: error: use of undeclared identifier >> '__tracepoint_irq_enable'; did you mean '__tracepoint_preempt_enable'? 151 | local_irq_restore(flags); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:234:7: note: expanded from macro 'local_irq_restore' 234 | if (__trace_enabled(irq_enable) && \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/tracepoint-defs.h:92:27: note: expanded from macro 'tracepoint_enabled' 92 | static_branch_unlikely(&(__tracepoint_##tp).key) | ^~~~~~~~~~~~~~~~~ <scratch space>:103:1: note: expanded from here 103 | __tracepoint_irq_enable | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/preempt.h:202:1: note: '__tracepoint_preempt_enable' declared here 202 | DECLARE_TRACEPOINT(preempt_enable); | ^ include/linux/tracepoint-defs.h:88:27: note: expanded from macro 'DECLARE_TRACEPOINT' 88 | extern struct tracepoint __tracepoint_##tp | ^ <scratch space>:104:1: note: expanded from here 104 | __tracepoint_preempt_enable | ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:9: In file included from include/linux/mm_types.h:8: In file included from include/linux/kref.h:16: In file included from include/linux/spinlock.h:312: >> include/linux/spinlock_api_smp.h:151:2: error: use of undeclared identifier >> '__tracepoint_irq_enable'; did you mean '__tracepoint_preempt_enable'? 151 | local_irq_restore(flags); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:234:7: note: expanded from macro 'local_irq_restore' 234 | if (__trace_enabled(irq_enable) && \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/tracepoint-defs.h:92:27: note: expanded from macro 'tracepoint_enabled' 92 | static_branch_unlikely(&(__tracepoint_##tp).key) | ^~~~~~~~~~~~~~~~~ <scratch space>:103:1: note: expanded from here 103 | __tracepoint_irq_enable | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/preempt.h:202:1: note: '__tracepoint_preempt_enable' declared here 202 | DECLARE_TRACEPOINT(preempt_enable); | ^ include/linux/tracepoint-defs.h:88:27: note: expanded from macro 'DECLARE_TRACEPOINT' 88 | extern struct tracepoint __tracepoint_##tp | ^ <scratch space>:104:1: note: expanded from here 104 | __tracepoint_preempt_enable | ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:9: In file included from include/linux/mm_types.h:8: In file included from include/linux/kref.h:16: In file included from include/linux/spinlock.h:312: >> include/linux/spinlock_api_smp.h:151:2: error: use of undeclared identifier >> '__tracepoint_irq_enable'; did you mean '__tracepoint_preempt_enable'? 151 | local_irq_restore(flags); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:234:7: note: expanded from macro 'local_irq_restore' 234 | if (__trace_enabled(irq_enable) && \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/tracepoint-defs.h:92:27: note: expanded from macro 'tracepoint_enabled' 92 | static_branch_unlikely(&(__tracepoint_##tp).key) | ^~~~~~~~~~~~~~~~~ <scratch space>:103:1: note: expanded from here 103 | __tracepoint_irq_enable | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/preempt.h:202:1: note: '__tracepoint_preempt_enable' declared here 202 | DECLARE_TRACEPOINT(preempt_enable); | ^ include/linux/tracepoint-defs.h:88:27: note: expanded from macro 'DECLARE_TRACEPOINT' 88 | extern struct tracepoint __tracepoint_##tp | ^ <scratch space>:104:1: note: expanded from here 104 | __tracepoint_preempt_enable | ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:9: In file included from include/linux/mm_types.h:8: In file included from include/linux/kref.h:16: In file included from include/linux/spinlock.h:312: include/linux/spinlock_api_smp.h:159:2: error: use of undeclared identifier '__tracepoint_irq_enable'; did you mean '__tracepoint_preempt_enable'? 159 | local_irq_enable(); | ^~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:210:7: note: expanded from macro 'local_irq_enable' 210 | if (__trace_enabled(irq_enable)) \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/tracepoint-defs.h:92:27: note: expanded from macro 'tracepoint_enabled' 92 | static_branch_unlikely(&(__tracepoint_##tp).key) | ^~~~~~~~~~~~~~~~~ <scratch space>:108:1: note: expanded from here 108 | __tracepoint_irq_enable | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/preempt.h:202:1: note: '__tracepoint_preempt_enable' declared here 202 | DECLARE_TRACEPOINT(preempt_enable); | ^ include/linux/tracepoint-defs.h:88:27: note: expanded from macro 'DECLARE_TRACEPOINT' 88 | extern struct tracepoint __tracepoint_##tp | ^ <scratch space>:104:1: note: expanded from here 104 | __tracepoint_preempt_enable | ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:9: In file included from include/linux/mm_types.h:8: In file included from include/linux/kref.h:16: In file included from include/linux/spinlock.h:312: include/linux/spinlock_api_smp.h:159:2: error: use of undeclared identifier '__tracepoint_irq_enable'; did you mean '__tracepoint_preempt_enable'? 159 | local_irq_enable(); | ^~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:210:7: note: expanded from macro 'local_irq_enable' 210 | if (__trace_enabled(irq_enable)) \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/tracepoint-defs.h:92:27: note: expanded from macro 'tracepoint_enabled' 92 | static_branch_unlikely(&(__tracepoint_##tp).key) | ^~~~~~~~~~~~~~~~~ <scratch space>:108:1: note: expanded from here 108 | __tracepoint_irq_enable | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/preempt.h:202:1: note: '__tracepoint_preempt_enable' declared here 202 | DECLARE_TRACEPOINT(preempt_enable); | ^ include/linux/tracepoint-defs.h:88:27: note: expanded from macro 'DECLARE_TRACEPOINT' 88 | extern struct tracepoint __tracepoint_##tp | ^ <scratch space>:104:1: note: expanded from here 104 | __tracepoint_preempt_enable | ^ In file included from arch/powerpc/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:9: In file included from include/linux/mm_types.h:8: In file included from include/linux/kref.h:16: In file included from include/linux/spinlock.h:312: include/linux/spinlock_api_smp.h:159:2: error: use of undeclared identifier '__tracepoint_irq_enable'; did you mean '__tracepoint_preempt_enable'? 159 | local_irq_enable(); | ^~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:210:7: note: expanded from macro 'local_irq_enable' 210 | if (__trace_enabled(irq_enable)) \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/irqflags.h:206:3: note: expanded from macro '__trace_enabled' 206 | tracepoint_enabled(tp)) vim +151 include/linux/spinlock_api_smp.h 69d0ee7377eef80 Heiko Carstens 2009-08-31 145 9c1721aa4994f66 Thomas Gleixner 2009-12-03 146 static inline void __raw_spin_unlock_irqrestore(raw_spinlock_t *lock, 69d0ee7377eef80 Heiko Carstens 2009-08-31 147 unsigned long flags) 69d0ee7377eef80 Heiko Carstens 2009-08-31 148 { 5facae4f3549b5c Qian Cai 2019-09-19 149 spin_release(&lock->dep_map, _RET_IP_); 9828ea9d75c38fe Thomas Gleixner 2009-12-03 150 do_raw_spin_unlock(lock); 69d0ee7377eef80 Heiko Carstens 2009-08-31 @151 local_irq_restore(flags); 69d0ee7377eef80 Heiko Carstens 2009-08-31 152 preempt_enable(); 69d0ee7377eef80 Heiko Carstens 2009-08-31 153 } 69d0ee7377eef80 Heiko Carstens 2009-08-31 154 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
