Messages in this thread Patch in this message | | | From | Tobias Klauser <> | Subject | [PATCH] cpu/hotplug: Remove unused but set variable in _cpu_down() | Date | Tue, 17 Jan 2017 15:35:01 +0100 |
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After commit 530e9b76ae8f ("cpu/hotplug: Remove obsolete cpu hotplug register/unregister functions"), 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.
Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> --- kernel/cpu.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/kernel/cpu.c b/kernel/cpu.c index f75c4d031eeb..f6b166ac7873 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; -- 2.11.0
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