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| author |   Anna-Maria Gleixner <anna-maria@linutronix.de> | 2016-05-02 13:49:14 +0200 |
|---|---|---|
| committer |   Tony Luck <tony.luck@intel.com> | 2016-05-02 13:23:44 -0700 |
| commit | e298c499cac1f175694f4ccfe5b532e5098b4716 (patch) | |
| tree | a6bd1a7dcfc771e52054f90a6d91e049b36e2ed2 /arch/ia64 | |
| parent | Linux 4.6-rc6 (diff) | |
| download | linux-dev-e298c499cac1f175694f4ccfe5b532e5098b4716.tar.xz linux-dev-e298c499cac1f175694f4ccfe5b532e5098b4716.zip | |
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.c | 5 |
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; |