diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2024-08-14 16:56:42 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-08-14 16:59:28 -0400 |
| commit | ee057c8c194b9283f4137b253b70e292693a39f0 (patch) | |
| tree | 4ee9868bfc432e0b1230016cd316468719f0b477 /kernel/irq/devres.c | |
| parent | b96c312551b241bc17226c5347c6d6b38a1efd3e (diff) | |
| parent | 7c626ce4bae1ac14f60076d00eafe71af30450ba (diff) | |
Merge tag 'v6.11-rc3' into trace/ring-buffer/core
The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be able to be mapped at the address specified by the "reserve_mem" command
line parameter.
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/irq/devres.c')
| -rw-r--r-- | kernel/irq/devres.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/kernel/irq/devres.c b/kernel/irq/devres.c index f6e5515ee077..b3e98668f4dd 100644 --- a/kernel/irq/devres.c +++ b/kernel/irq/devres.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/module.h> #include <linux/interrupt.h> +#include <linux/irqdomain.h> #include <linux/device.h> #include <linux/gfp.h> #include <linux/irq.h> @@ -282,3 +283,43 @@ int devm_irq_setup_generic_chip(struct device *dev, struct irq_chip_generic *gc, } EXPORT_SYMBOL_GPL(devm_irq_setup_generic_chip); #endif /* CONFIG_GENERIC_IRQ_CHIP */ + +#ifdef CONFIG_IRQ_DOMAIN +static void devm_irq_domain_remove(struct device *dev, void *res) +{ + struct irq_domain **domain = res; + + irq_domain_remove(*domain); +} + +/** + * devm_irq_domain_instantiate() - Instantiate a new irq domain data for a + * managed device. + * @dev: Device to instantiate the domain for + * @info: Domain information pointer pointing to the information for this + * domain + * + * Return: A pointer to the instantiated irq domain or an ERR_PTR value. + */ +struct irq_domain *devm_irq_domain_instantiate(struct device *dev, + const struct irq_domain_info *info) +{ + struct irq_domain *domain; + struct irq_domain **dr; + + dr = devres_alloc(devm_irq_domain_remove, sizeof(*dr), GFP_KERNEL); + if (!dr) + return ERR_PTR(-ENOMEM); + + domain = irq_domain_instantiate(info); + if (!IS_ERR(domain)) { + *dr = domain; + devres_add(dev, dr); + } else { + devres_free(dr); + } + + return domain; +} +EXPORT_SYMBOL_GPL(devm_irq_domain_instantiate); +#endif /* CONFIG_IRQ_DOMAIN */ |