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thermal/x86_pkg_temp: Replace open coded cpu search

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find_next_sibling() iterates over the online cpus and searches for a cpu
with the same package id as the current cpu. This is a pointless exercise
as topology_core_cpumask() allows a simple cpumask search for an online cpu
on the same package.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Thomas Gleixner 2016-11-22 17:57:06 +00:00 committed by Zhang Rui
parent 89baa56be7
commit 21a3d3d4c8
1 changed files with 4 additions and 15 deletions
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19
drivers/thermal/x86_pkg_temp_thermal.c
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@ -384,18 +384,6 @@ static int pkg_temp_thermal_platform_thermal_notify(__u64 msr_val)
return 0;
}
static int find_siblings_cpu(int cpu)
{
int i;
int id = topology_physical_package_id(cpu);
for_each_online_cpu(i)
if (i != cpu && topology_physical_package_id(i) == id)
return i;
return 0;
}
static int pkg_temp_thermal_device_add(unsigned int cpu)
{
int err;
@ -488,9 +476,10 @@ static int pkg_temp_thermal_device_remove(unsigned int cpu)
mutex_lock(&phy_dev_list_mutex);
/* If we are loosing the first cpu for this package, we need change */
if (phdev->first_cpu == cpu) {
phdev->first_cpu = find_siblings_cpu(cpu);
pr_debug("thermal_device_remove: first cpu switched %d\n",
phdev->first_cpu);
int target = cpumask_any_but(topology_core_cpumask(cpu), cpu);
phdev->first_cpu = target;
pr_debug("CPU %d down. New first_cpu%d\n", cpu, target);
}
/*
* It is possible that no siblings left as this was the last cpu