xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

genirq: Remove mask argument from setup_affinity()

Browse Source 
No point to have this alloc/free dance of cpumasks. Provide a static mask
for setup_affinity() and protect it proper.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20170619235444.851571573@linutronix.de
This commit is contained in:
Thomas Gleixner
2017-06-20 01:37:21 +02:00
parent 8e7b632237
commit cba4235e60
3 changed files with 29 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/irq/proc.c
View File

@@ -120,9 +120,11 @@ static ssize_t write_irq_affinity(int type, struct file *file,
* one online CPU still has to be targeted.
*/
if (!cpumask_intersects(new_value, cpu_online_mask)) {
/* Special case for empty set - allow the architecture
code to set default SMP affinity. */
err = irq_select_affinity_usr(irq, new_value) ? -EINVAL : count;
/*
* Special case for empty set - allow the architecture code
* to set default SMP affinity.
*/
err = irq_select_affinity_usr(irq) ? -EINVAL : count;
} else {
irq_set_affinity(irq, new_value);
err = count;