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ARM: CPU hotplug: remove bug checks in platform_cpu_die()

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platform_cpu_die() is entered from the CPU's own idle thread, which
can not be migrated to other CPUs.  Moreover, the 'cpu' argument
comes from the thread info, which will always be the 'current'
CPU.  So remove this useless bug check.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2010-11-30 11:12:30 +00:00
parent 3c030beabf
commit bbc81fd432
5 changed files with 0 additions and 48 deletions
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8
arch/arm/mach-omap2/omap-hotplug.c
View File

@ -32,14 +32,6 @@ int platform_cpu_kill(unsigned int cpu)
*/
void platform_cpu_die(unsigned int cpu)
{
unsigned int this_cpu = hard_smp_processor_id();
if (cpu != this_cpu) {
pr_crit("platform_cpu_die running on %u, should be %u\n",
this_cpu, cpu);
BUG();
}
flush_cache_all();
dsb();

10
arch/arm/mach-realview/hotplug.c
View File

@ -102,16 +102,6 @@ int platform_cpu_kill(unsigned int cpu)
*/
void platform_cpu_die(unsigned int cpu)
{
#ifdef DEBUG
unsigned int this_cpu = hard_smp_processor_id();
if (cpu != this_cpu) {
printk(KERN_CRIT "Eek! platform_cpu_die running on %u, should be %u\n",
this_cpu, cpu);
BUG();
}
#endif
/*
* we're ready for shutdown now, so do it
*/

10
arch/arm/mach-s5pv310/hotplug.c
View File

@ -105,16 +105,6 @@ int platform_cpu_kill(unsigned int cpu)
*/
void platform_cpu_die(unsigned int cpu)
{
#ifdef DEBUG
unsigned int this_cpu = hard_smp_processor_id();
if (cpu != this_cpu) {
printk(KERN_CRIT "Eek! platform_cpu_die running on %u, should be %u\n",
this_cpu, cpu);
BUG();
}
#endif
/*
* we're ready for shutdown now, so do it
*/

10
arch/arm/mach-tegra/hotplug.c
View File

@ -101,16 +101,6 @@ int platform_cpu_kill(unsigned int cpu)
*/
void platform_cpu_die(unsigned int cpu)
{
#ifdef DEBUG
unsigned int this_cpu = hard_smp_processor_id();
if (cpu != this_cpu) {
printk(KERN_CRIT "Eek! platform_cpu_die running on %u, should be %u\n",
this_cpu, cpu);
BUG();
}
#endif
/*
* we're ready for shutdown now, so do it
*/

10
arch/arm/mach-ux500/hotplug.c
View File

@ -45,16 +45,6 @@ int platform_cpu_kill(unsigned int cpu)
*/
void platform_cpu_die(unsigned int cpu)
{
#ifdef DEBUG
unsigned int this_cpu = hard_smp_processor_id();
if (cpu != this_cpu) {
printk(KERN_CRIT "Eek! platform_cpu_die running on %u, should be %u\n",
this_cpu, cpu);
BUG();
}
#endif
/* directly enter low power state, skipping secure registers */
platform_do_lowpower(cpu);
}