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charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core head: 86342554e102b0d18d50abec43d40f4fc92f1993 commit: 86342554e102b0d18d50abec43d40f4fc92f1993 [3/3] hrtimer: Select housekeeping CPU during migration config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20240214/202402141402.ktGAGpFN-lkp@intel.com/config) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240214/202402141402.ktGAGpFN-lkp@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 | Closes: https://lore.kernel.org/oe-kbuild-all/202402141402.ktGAGpFN-lkp@intel.com/ All errors (new ones prefixed by >>): kernel/time/hrtimer.c:120:35: warning: initialized field overwritten [-Woverride-init] 120 | [CLOCK_REALTIME] = HRTIMER_BASE_REALTIME, | ^~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:120:35: note: (near initialization for 'hrtimer_clock_to_base_table[0]') kernel/time/hrtimer.c:121:35: warning: initialized field overwritten [-Woverride-init] 121 | [CLOCK_MONOTONIC] = HRTIMER_BASE_MONOTONIC, | ^~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:121:35: note: (near initialization for 'hrtimer_clock_to_base_table[1]') kernel/time/hrtimer.c:122:35: warning: initialized field overwritten [-Woverride-init] 122 | [CLOCK_BOOTTIME] = HRTIMER_BASE_BOOTTIME, | ^~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:122:35: note: (near initialization for 'hrtimer_clock_to_base_table[7]') kernel/time/hrtimer.c:123:35: warning: initialized field overwritten [-Woverride-init] 123 | [CLOCK_TAI] = HRTIMER_BASE_TAI, | ^~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:123:35: note: (near initialization for 'hrtimer_clock_to_base_table[11]') In file included from arch/loongarch/include/asm/processor.h:9, from arch/loongarch/include/asm/thread_info.h:15, from include/linux/thread_info.h:60, from include/asm-generic/current.h:6, from ./arch/loongarch/include/generated/asm/current.h:1, from include/linux/sched.h:12, from include/linux/ratelimit.h:6, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from include/linux/node.h:18, from include/linux/cpu.h:17, from kernel/time/hrtimer.c:25: kernel/time/hrtimer.c: In function 'hrtimers_cpu_dying': >> kernel/time/hrtimer.c:2224:56: error: implicit declaration of function 'housekeeping' [-Werror=implicit-function-declaration] 2224 | int i, ncpu = cpumask_any_and(cpu_active_mask, housekeeping(HK_TYPE_TIMER)); | ^~~~~~~~~~~~ include/linux/cpumask.h:774:67: note: in definition of macro 'cpumask_any_and' 774 | #define cpumask_any_and(mask1, mask2) cpumask_first_and((mask1), (mask2)) | ^~~~~ >> kernel/time/hrtimer.c:2224:69: error: 'HK_TYPE_TIMER' undeclared (first use in this function) 2224 | int i, ncpu = cpumask_any_and(cpu_active_mask, housekeeping(HK_TYPE_TIMER)); | ^~~~~~~~~~~~~ include/linux/cpumask.h:774:67: note: in definition of macro 'cpumask_any_and' 774 | #define cpumask_any_and(mask1, mask2) cpumask_first_and((mask1), (mask2)) | ^~~~~ kernel/time/hrtimer.c:2224:69: note: each undeclared identifier is reported only once for each function it appears in 2224 | int i, ncpu = cpumask_any_and(cpu_active_mask, housekeeping(HK_TYPE_TIMER)); | ^~~~~~~~~~~~~ include/linux/cpumask.h:774:67: note: in definition of macro 'cpumask_any_and' 774 | #define cpumask_any_and(mask1, mask2) cpumask_first_and((mask1), (mask2)) | ^~~~~ cc1: some warnings being treated as errors vim +/housekeeping +2224 kernel/time/hrtimer.c 2221 2222 int hrtimers_cpu_dying(unsigned int dying_cpu) 2223 { > 2224 int i, ncpu = cpumask_any_and(cpu_active_mask, housekeeping(HK_TYPE_TIMER)); 2225 struct hrtimer_cpu_base *old_base, *new_base; 2226 2227 tick_cancel_sched_timer(dying_cpu); 2228 2229 old_base = this_cpu_ptr(&hrtimer_bases); 2230 new_base = &per_cpu(hrtimer_bases, ncpu); 2231 2232 /* 2233 * The caller is globally serialized and nobody else 2234 * takes two locks at once, deadlock is not possible. 2235 */ 2236 raw_spin_lock(&old_base->lock); 2237 raw_spin_lock_nested(&new_base->lock, SINGLE_DEPTH_NESTING); 2238 2239 for (i = 0; i < HRTIMER_MAX_CLOCK_BASES; i++) { 2240 migrate_hrtimer_list(&old_base->clock_base[i], 2241 &new_base->clock_base[i]); 2242 } 2243 2244 /* 2245 * The migration might have changed the first expiring softirq 2246 * timer on this CPU. Update it. 2247 */ 2248 __hrtimer_get_next_event(new_base, HRTIMER_ACTIVE_SOFT); 2249 /* Tell the other CPU to retrigger the next event */ 2250 smp_call_function_single(ncpu, retrigger_next_event, NULL, 0); 2251 2252 raw_spin_unlock(&new_base->lock); 2253 raw_spin_unlock(&old_base->lock); 2254 2255 return 0; 2256 } 2257 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki