From: Thomas Falcon Date: Fri, 12 Sep 2014 19:11:41 +0000 (-0500) Subject: pseries: Fix endian issues in onlining cpu threads X-Git-Tag: firefly_0821_release~176^2~2988^2~103 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=822e71224e07f07a07c385be869fe416ce436430;p=firefly-linux-kernel-4.4.55.git 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: Thomas Falcon Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index 55a1b2f681e0..096337853dda 100644 --- a/arch/powerpc/platforms/pseries/dlpar.c +++ b/arch/powerpc/platforms/pseries/dlpar.c @@ -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();