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Commit 822e7122 authored by Thomas Falcon's avatar Thomas Falcon Committed by Michael Ellerman
Browse files

pseries: Fix endian issues in onlining cpu threads 



The ibm,ppc-interrupt-server#s property is in big endian format.
These values need to be converted when used by little endian
architectures.

Signed-off-by: default avatarThomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent fe921c8c

arch/powerpc/platforms/pseries/dlpar.c

+5 −3
Original line number Diff line number Diff line
@@ -364,7 +364,8 @@ static int dlpar_online_cpu(struct device_node *dn) 
	int rc = 0;

	unsigned int cpu;

	int len, nthreads, i;

	const u32 *intserv;

	const __be32 *intserv;

	u32 thread;



	intserv = of_get_property(dn, "ibm,ppc-interrupt-server#s", &len);

	if (!intserv)
@@ -374,8 +375,9 @@ static int dlpar_online_cpu(struct device_node *dn) 


	cpu_maps_update_begin();

	for (i = 0; i < nthreads; i++) {

		thread = be32_to_cpu(intserv[i]);

		for_each_present_cpu(cpu) {

			if (get_hard_smp_processor_id(cpu) != intserv[i])

			if (get_hard_smp_processor_id(cpu) != thread)

				continue;

			BUG_ON(get_cpu_current_state(cpu)

					!= CPU_STATE_OFFLINE);
@@ -389,7 +391,7 @@ static int dlpar_online_cpu(struct device_node *dn) 
		}

		if (cpu == num_possible_cpus())

			printk(KERN_WARNING "Could not find cpu to online "

			       "with physical id 0x%x\n", intserv[i]);

			       "with physical id 0x%x\n", thread);

	}

	cpu_maps_update_done();