diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2015-12-31 17:30:49 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-01-15 13:44:00 +0100 |
| commit | 9ac15b7a8af4cf3337a101498c0ed690d23ade75 (patch) | |
| tree | 453e662b98650c5a25092ac5fe533bfda284e5c6 /arch/x86 | |
| parent | x86/irq: Check vector allocation early (diff) | |
| download | linux-9ac15b7a8af4cf3337a101498c0ed690d23ade75.tar.xz linux-9ac15b7a8af4cf3337a101498c0ed690d23ade75.zip | |
x86/irq: Copy vectormask instead of an AND operation
In the case that the new vector mask is a subset of the existing mask there is
no point to do a AND operation of currentmask & newmask. The result is
newmask. So we can simply copy the new mask to the current mask and be done
with it. Preparatory patch for further consolidation.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Borislav Petkov <bp@alien8.de>
Tested-by: Joe Lawrence <joe.lawrence@stratus.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Jeremiah Mahler <jmmahler@gmail.com>
Cc: andy.shevchenko@gmail.com
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org #4.3+
Link: http://lkml.kernel.org/r/20151231160106.640253454@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/apic/vector.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index 940e18d4dbcd..1bd29c624531 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -156,7 +156,7 @@ static int __assign_irq_vector(int irq, struct apic_chip_data *d, vector_cpumask); d->move_in_progress = cpumask_intersects(d->old_domain, cpu_online_mask); - cpumask_and(d->domain, d->domain, vector_cpumask); + cpumask_copy(d->domain, vector_cpumask); goto success; } |