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authorMarc Zyngier <maz@kernel.org>2021-06-11 16:32:12 +0300
committerMarc Zyngier <maz@kernel.org>2021-06-11 16:32:12 +0300
commitc64638d5091a5630d0f5f5ab7001bdee1ad194f2 (patch)
treec1149e3bdd85bddab6e9c0d77ddfe95b9e153882 /drivers/irqchip/exynos-combiner.c
parentcd273da34f407c14314af790b0484d6c9b6e1349 (diff)
parent046a6ee2343bb26d85a9973a39ccdb9764236fa4 (diff)
downloadlinux-c64638d5091a5630d0f5f5ab7001bdee1ad194f2.tar.xz
Merge branch irq/generic_handle_domain_irq-core into irq/irqchip-next
Simplify the handling of interrupts that require an IRQ domain resolution: - domains now cache the irqdata instead of the irq number - consistent behaviour wrt RCU - single lookup for architectures using sparse IRQs - reduced boilerplate code in drivers. * irq/generic_handle_domain_irq-core: (26 commits) irqchip: Bulk conversion to generic_handle_domain_irq() genirq: Move non-irqdomain handle_domain_irq() handling into ARM's handle_IRQ() genirq: Add generic_handle_domain_irq() helper irqchip/nvic: Convert from handle_IRQ() to handle_domain_irq() irqdesc: Fix __handle_domain_irq() comment genirq: Use irq_resolve_mapping() to implement __handle_domain_irq() and co irqdomain: Introduce irq_resolve_mapping() irqdomain: Protect the linear revmap with RCU irqdomain: Cache irq_data instead of a virq number in the revmap irqdomain: Use struct_size() helper when allocating irqdomain irqdomain: Make normal and nomap irqdomains exclusive powerpc: Move the use of irq_domain_add_nomap() behind a config option irqdomain: Reimplement irq_linear_revmap() with irq_find_mapping() irqdomain: Kill irq_domain_add_legacy_isa powerpc: Drop dependency between asm/irq.h and linux/irqdomain.h powerpc: Convert irq_domain_add_legacy_isa use to irq_domain_add_legacy scsi/ibmvscsi: Directly include linux/{of.h,irqdomain.h} powerpc: Add missing linux/{of.h,irqdomain.h} include directives MIPS: Do not include linux/irqdomain.h from asm/irq.h MIPS: Add missing linux/irqdomain.h includes ...
Diffstat (limited to 'drivers/irqchip/exynos-combiner.c')
-rw-r--r--drivers/irqchip/exynos-combiner.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c
index 256ed73ddfef..552aa04ff063 100644
--- a/drivers/irqchip/exynos-combiner.c
+++ b/drivers/irqchip/exynos-combiner.c
@@ -66,8 +66,9 @@ static void combiner_handle_cascade_irq(struct irq_desc *desc)
{
struct combiner_chip_data *chip_data = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc);
- unsigned int cascade_irq, combiner_irq;
+ unsigned int combiner_irq;
unsigned long status;
+ int ret;
chained_irq_enter(chip, desc);
@@ -80,12 +81,9 @@ static void combiner_handle_cascade_irq(struct irq_desc *desc)
goto out;
combiner_irq = chip_data->hwirq_offset + __ffs(status);
- cascade_irq = irq_find_mapping(combiner_irq_domain, combiner_irq);
-
- if (unlikely(!cascade_irq))
+ ret = generic_handle_domain_irq(combiner_irq_domain, combiner_irq);
+ if (unlikely(ret))
handle_bad_irq(desc);
- else
- generic_handle_irq(cascade_irq);
out:
chained_irq_exit(chip, desc);