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- Fix a kernel panic in mips-cpu due to invalid irq domain hierarchy.

Browse Source 
- Fix to not lose IPIs on bcm2836.
 
  - Fix for a bogus marking of ITS devices as shared due to unitialized
    stack variable.
 
  - Clear a phantom interrupt on qcom-pdc to unblock suspend.
 
  - Small cleanups, warning and build fixes.
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Merge tag 'irq_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Borislav Petkov:

 - Fix a kernel panic in mips-cpu due to invalid irq domain hierarchy.

 - Fix to not lose IPIs on bcm2836.

 - Fix for a bogus marking of ITS devices as shared due to unitialized
   stack variable.

 - Clear a phantom interrupt on qcom-pdc to unblock suspend.

 - Small cleanups, warning and build fixes.

* tag 'irq_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Export irq_check_status_bit()
  irqchip/mips-cpu: Set IPI domain parent chip
  irqchip/pruss: Simplify the TI_PRUSS_INTC Kconfig
  irqchip/loongson-liointc: Fix build warnings
  driver core: platform: Add extra error check in devm_platform_get_irqs_affinity()
  irqchip/bcm2836: Fix IPI acknowledgement after conversion to handle_percpu_devid_irq
  irqchip/irq-sl28cpld: Convert comma to semicolon
  genirq/msi: Initialize msi_alloc_info before calling msi_domain_prepare_irqs()
This commit is contained in:
Linus Torvalds 2021-01-24 10:24:20 -08:00
commit e68061375f
8 changed files with 19 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/base/platform.c
View File

@ -366,6 +366,8 @@ int devm_platform_get_irqs_affinity(struct platform_device *dev,
return -ERANGE;
nvec = platform_irq_count(dev);
if (nvec < 0)
return nvec;
if (nvec < minvec)
return -ENOSPC;

5
drivers/irqchip/Kconfig
View File

@ -493,8 +493,9 @@ config TI_SCI_INTA_IRQCHIP
TI System Controller, say Y here. Otherwise, say N.
config TI_PRUSS_INTC
tristate "TI PRU-ICSS Interrupt Controller"
depends on ARCH_DAVINCI || SOC_AM33XX || SOC_AM43XX || SOC_DRA7XX || ARCH_KEYSTONE || ARCH_K3
tristate
depends on TI_PRUSS
default TI_PRUSS
select IRQ_DOMAIN
help
This enables support for the PRU-ICSS Local Interrupt Controller

4
drivers/irqchip/irq-bcm2836.c
View File

@ -167,7 +167,7 @@ static void bcm2836_arm_irqchip_handle_ipi(struct irq_desc *desc)
chained_irq_exit(chip, desc);
}
static void bcm2836_arm_irqchip_ipi_eoi(struct irq_data *d)
static void bcm2836_arm_irqchip_ipi_ack(struct irq_data *d)
{
int cpu = smp_processor_id();
@ -195,7 +195,7 @@ static struct irq_chip bcm2836_arm_irqchip_ipi = {
.name = "IPI",
.irq_mask = bcm2836_arm_irqchip_dummy_op,
.irq_unmask = bcm2836_arm_irqchip_dummy_op,
.irq_eoi = bcm2836_arm_irqchip_ipi_eoi,
.irq_ack = bcm2836_arm_irqchip_ipi_ack,
.ipi_send_mask = bcm2836_arm_irqchip_ipi_send_mask,
};

4
drivers/irqchip/irq-loongson-liointc.c
View File

@ -142,8 +142,8 @@ static void liointc_resume(struct irq_chip_generic *gc)
static const char * const parent_names[] = {"int0", "int1", "int2", "int3"};
int __init liointc_of_init(struct device_node *node,
struct device_node *parent)
static int __init liointc_of_init(struct device_node *node,
struct device_node *parent)
{
struct irq_chip_generic *gc;
struct irq_domain *domain;

7
drivers/irqchip/irq-mips-cpu.c
View File

@ -197,6 +197,13 @@ static int mips_cpu_ipi_alloc(struct irq_domain *domain, unsigned int virq,
if (ret)
return ret;
ret = irq_domain_set_hwirq_and_chip(domain->parent, virq + i, hwirq,
&mips_mt_cpu_irq_controller,
NULL);
if (ret)
return ret;
ret = irq_set_irq_type(virq + i, IRQ_TYPE_LEVEL_HIGH);
if (ret)
return ret;

2
drivers/irqchip/irq-sl28cpld.c
View File

@ -66,7 +66,7 @@ static int sl28cpld_intc_probe(struct platform_device *pdev)
irqchip->chip.num_regs = 1;
irqchip->chip.status_base = base + INTC_IP;
irqchip->chip.mask_base = base + INTC_IE;
irqchip->chip.mask_invert = true,
irqchip->chip.mask_invert = true;
irqchip->chip.ack_base = base + INTC_IP;
return devm_regmap_add_irq_chip_fwnode(dev, dev_fwnode(dev),

1
kernel/irq/manage.c
View File

@ -2859,3 +2859,4 @@ bool irq_check_status_bit(unsigned int irq, unsigned int bitmask)
rcu_read_unlock();
return res;
}
EXPORT_SYMBOL_GPL(irq_check_status_bit);

2
kernel/irq/msi.c
View File

@ -402,7 +402,7 @@ int __msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
struct msi_domain_ops *ops = info->ops;
struct irq_data *irq_data;
struct msi_desc *desc;
msi_alloc_info_t arg;
msi_alloc_info_t arg = { };
int i, ret, virq;
bool can_reserve;