void identify_siblings()

in kernel/smpboot.c [779:819]

• 34 lines of code
• 7 McCabe index (conditional complexity)

void identify_siblings(struct cpuinfo_ia64 *c)
{
	long status;
	u16 pltid;
	pal_logical_to_physical_t info;

	status = ia64_pal_logical_to_phys(-1, &info);
	if (status != PAL_STATUS_SUCCESS) {
		if (status != PAL_STATUS_UNIMPLEMENTED) {
			printk(KERN_ERR
				"ia64_pal_logical_to_phys failed with %ld\n",
				status);
			return;
		}

		info.overview_ppid = 0;
		info.overview_cpp  = 1;
		info.overview_tpc  = 1;
	}

	status = ia64_sal_physical_id_info(&pltid);
	if (status != PAL_STATUS_SUCCESS) {
		if (status != PAL_STATUS_UNIMPLEMENTED)
			printk(KERN_ERR
				"ia64_sal_pltid failed with %ld\n",
				status);
		return;
	}

	c->socket_id =  (pltid << 8) | info.overview_ppid;

	if (info.overview_cpp == 1 && info.overview_tpc == 1)
		return;

	c->cores_per_socket = info.overview_cpp;
	c->threads_per_core = info.overview_tpc;
	c->num_log = info.overview_num_log;

	c->core_id = info.log1_cid;
	c->thread_id = info.log1_tid;
}