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authorTobias Klauser <tklauser@distanz.ch>2017-01-17 15:35:01 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-18 11:55:09 +0100
commit0fec9557fd0c5349e3bd1a2141612a60bc20bb71 (patch)
tree549969ab682cb758e8c439602adc931ecddc5244 /kernel/cpu.c
parent4205e4786d0b9fc3b4fec7b1910cf645a0468307 (diff)
cpu/hotplug: Remove unused but set variable in _cpu_down()
After the recent removal of the hotplug notifiers the variable 'hasdied' in _cpu_down() is set but no longer read, leading to the following GCC warning when building with 'make W=1': kernel/cpu.c:767:7: warning: variable ‘hasdied’ set but not used [-Wunused-but-set-variable] Fix it by removing the variable. Fixes: 530e9b76ae8f ("cpu/hotplug: Remove obsolete cpu hotplug register/unregister functions") Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20170117143501.20893-1-tklauser@distanz.ch Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/cpu.c')
-rw-r--r--kernel/cpu.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c
index c47506357519..0a5f630f5c54 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -764,7 +764,6 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen,
{
struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
int prev_state, ret = 0;
- bool hasdied = false;
if (num_online_cpus() == 1)
return -EBUSY;
@@ -809,7 +808,6 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen,
cpuhp_kick_ap_work(cpu);
}
- hasdied = prev_state != st->state && st->state == CPUHP_OFFLINE;
out:
cpu_hotplug_done();
return ret;