Commit-ID: 0fec9557fd0c5349e3bd1a2141612a60bc20bb71
Gitweb: http://git.kernel.org/tip/0fec9557fd0c5349e3bd1a2141612a60bc20bb71
Author: Tobias Klauser <tklauser@xxxxxxxxxx>
AuthorDate: Tue, 17 Jan 2017 15:35:01 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Wed, 18 Jan 2017 11:55:09 +0100
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@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: rt@xxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20170117143501.20893-1-tklauser@xxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
kernel/cpu.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/kernel/cpu.c b/kernel/cpu.c
index c475063..0a5f630 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;
--
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