[arm-perf:cpu-hotplug 15/17] arch/arm64/kernel/smp.c:139:26: sparse: sparse: cast to non-scalar

[arm-perf:cpu-hotplug 15/17] arch/arm64/kernel/smp.c:139:26: sparse: sparse: cast to non-scalar

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git cpu-hotplug
head:   cd36ff144dcb1aaaf6934be509232df463916321
commit: 2d5b8df5d4e2bbc142e3b4f21cabbca96e3da79d [15/17] Add error handling
config: arm64-randconfig-r113-20250826 (https://download.01.org/0day-ci/archive/20250826/202508261428.UDJLSGab-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project d26ea02060b1c9db751d188b2edb0059a9eb273d)
reproduce: (https://download.01.org/0day-ci/archive/20250826/202508261428.UDJLSGab-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508261428.UDJLSGab-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> arch/arm64/kernel/smp.c:139:26: sparse: sparse: cast to non-scalar
>> arch/arm64/kernel/smp.c:139:26: sparse: sparse: cast from non-scalar

vim +139 arch/arm64/kernel/smp.c

   133	
   134	void arch_cpuhp_cleanup_kick_cpu(unsigned int cpu, bool is_alive)
   135	{
   136		union secondary_status status;
   137	
   138		if (is_alive) {
 > 139			status = READ_ONCE(secondary_data.status);
   140			if (!status.val)
   141				return;
   142		} else {
   143			status.val = READ_ONCE(__early_cpu_boot_status);
   144		}
   145	
   146		/* A CPU has failed to boot. Try to figure out what happened. */
   147		if (smp_parallel_bringup)
   148			pr_warn_once("Parallel CPU bringup failed; consider passing \"cpuhp.parallel=off\" for a more accurate diagnosis.\n");
   149		else
   150			secondary_data.task = NULL;
   151	
   152		if (is_alive) {
   153			if (status.flags[CPU_PANIC_KERNEL])
   154				panic("CPU%u detected unsupported configuration\n", cpu);
   155	
   156			if (status.flags[CPU_KILL_ME]) {
   157				if (!cpu_present(cpu) && !op_cpu_kill(cpu)) {
   158					pr_crit("CPU%u: died during early boot\n", cpu);
   159					return;
   160				}
   161			}
   162		} else {
   163			if (status.early_flags[EARLY_CPU_STUCK_REASON_52_BIT_VA]) {
   164				pr_crit_once("CPU%u detected lack of support for 52-bit VAs\n",
   165					     cpu);
   166			}
   167	
   168			if (status.early_flags[EARLY_CPU_STUCK_REASON_NO_GRAN]) {
   169				pr_crit_once("CPU%u detected lack of support for %luK granules\n",
   170					     cpu, PAGE_SIZE / SZ_1K);
   171			}
   172		}
   173	
   174		pr_crit_once("CPUs may be stuck in kernel\n");
   175		cpus_stuck_in_kernel = true;
   176	}
   177	

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