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Xtensa fixes for v4.12-rc6

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- don't use linux IRQ #0 in legacy irq domains: fixes timer interrupt
   assignment when it's hardware IRQ # is 0 and the kernel is built w/o
   device tree support;
 - reduce reservation size for double exception vector literals from 48
   to 20 bytes: fixes build on cores with small user exception vector;
 - cleanups: use kmalloc_array instead of kmalloc in simdisk_init and
   seq_puts instead of seq_printf in c_show.
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Merge tag 'xtensa-20170612' of git://github.com/jcmvbkbc/linux-xtensa

Pull Xtensa fixes from Max Filippov:

 - don't use linux IRQ #0 in legacy irq domains: fixes timer interrupt
   assignment when it's hardware IRQ # is 0 and the kernel is built w/o
   device tree support

 - reduce reservation size for double exception vector literals from 48
   to 20 bytes: fixes build on cores with small user exception vector

 - cleanups: use kmalloc_array instead of kmalloc in simdisk_init and
   seq_puts instead of seq_printf in c_show.

* tag 'xtensa-20170612' of git://github.com/jcmvbkbc/linux-xtensa:
  xtensa: don't use linux IRQ #0
  xtensa: reduce double exception literal reservation
  xtensa: ISS: Use kmalloc_array() in simdisk_init()
  xtensa: Use seq_puts() in c_show()
This commit is contained in:
Linus Torvalds 2017-06-13 15:09:10 +09:00
commit 63f700aab4
9 changed files with 18 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/irqchip/irq-xtensa-mx.c
View file

@ -142,7 +142,7 @@ static struct irq_chip xtensa_mx_irq_chip = {
int __init xtensa_mx_init_legacy(struct device_node *interrupt_parent)
{
struct irq_domain *root_domain =
irq_domain_add_legacy(NULL, NR_IRQS, 0, 0,
irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
&xtensa_mx_irq_domain_ops,
&xtensa_mx_irq_chip);
irq_set_default_host(root_domain);

2
drivers/irqchip/irq-xtensa-pic.c
View file

@ -89,7 +89,7 @@ static struct irq_chip xtensa_irq_chip = {
int __init xtensa_pic_init_legacy(struct device_node *interrupt_parent)
{
struct irq_domain *root_domain =
irq_domain_add_legacy(NULL, NR_IRQS, 0, 0,
irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
&xtensa_irq_domain_ops, &xtensa_irq_chip);
irq_set_default_host(root_domain);
return 0;