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authorAnna-Maria Gleixner <anna-maria@linutronix.de>2016-05-02 13:49:14 +0200
committerTony Luck <tony.luck@intel.com>2016-05-02 13:23:44 -0700
commite298c499cac1f175694f4ccfe5b532e5098b4716 (patch)
treea6bd1a7dcfc771e52054f90a6d91e049b36e2ed2 /arch/ia64
parent04974df8049fc4240d22759a91e035082ccd18b4 (diff)
downloadlinux-e298c499cac1f175694f4ccfe5b532e5098b4716.tar.bz2
ia64: Remove superfluous SMP function call
Since commit 3b9d6da67e11 ("cpu/hotplug: Fix rollback during error-out in __cpu_disable()") it is ensured that callbacks of CPU_ONLINE and CPU_DOWN_PREPARE are processed on the hotplugged CPU. Due to this SMP function calls are no longer required. Replace smp_call_function_single() with a direct call to ia64_mca_cmc_vector_adjust(). The function itselfs handles disable and enable interrupts, therefore the smp_call_function_single() calling convention is not preserved. Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: linux-ia64@vger.kernel.org Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/kernel/mca.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 2889412e03eb..07a4e32ae96a 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1904,13 +1904,10 @@ static int mca_cpu_callback(struct notifier_block *nfb,
unsigned long action,
void *hcpu)
{
- int hotcpu = (unsigned long) hcpu;
-
switch (action) {
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
- smp_call_function_single(hotcpu, ia64_mca_cmc_vector_adjust,
- NULL, 0);
+ ia64_mca_cmc_vector_adjust(NULL);
break;
}
return NOTIFY_OK;