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authorMichael Ellerman <mpe@ellerman.id.au>2020-08-19 11:56:34 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2020-09-18 19:59:43 +1000
commit39f87561454dc33efb2a3d8354d066207acac8a6 (patch)
tree8f614a84e5b9159733e60999e416ed78795e4982 /arch/powerpc/kernel
parentbf3c1464db883a953ad7bbed64924480b8b2b244 (diff)
downloadlinux-39f87561454dc33efb2a3d8354d066207acac8a6.tar.bz2
powerpc/smp: Move ppc_md.cpu_die() to smp_ops.cpu_offline_self()
We have smp_ops->cpu_die() and ppc_md.cpu_die(). One of them offlines the current CPU and one offlines another CPU, can you guess which is which? Also one is in smp_ops and one is in ppc_md? So rename ppc_md.cpu_die(), to cpu_offline_self(), because that's what it does. And move it into smp_ops where it belongs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200819015634.1974478-3-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/smp.c4
-rw-r--r--arch/powerpc/kernel/sysfs.c4
2 files changed, 5 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 4ae767c455b8..58990baa5182 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1499,8 +1499,8 @@ void arch_cpu_idle_dead(void)
*/
this_cpu_disable_ftrace();
- if (ppc_md.cpu_die)
- ppc_md.cpu_die();
+ if (smp_ops->cpu_offline_self)
+ smp_ops->cpu_offline_self();
/* If we return, we re-enter start_secondary */
start_secondary_resume();
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 5dea98fa2f93..928b29e0ee83 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -1160,6 +1160,7 @@ static int __init topology_init(void)
for_each_possible_cpu(cpu) {
struct cpu *c = &per_cpu(cpu_devices, cpu);
+#ifdef CONFIG_HOTPLUG_CPU
/*
* For now, we just see if the system supports making
* the RTAS calls for CPU hotplug. But, there may be a
@@ -1167,8 +1168,9 @@ static int __init topology_init(void)
* CPU. For instance, the boot cpu might never be valid
* for hotplugging.
*/
- if (ppc_md.cpu_die)
+ if (smp_ops->cpu_offline_self)
c->hotpluggable = 1;
+#endif
if (cpu_online(cpu) || c->hotpluggable) {
register_cpu(c, cpu);