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| author | Christoph Hellwig | 2017-04-13 09:06:42 +0200 |
|---|---|---|
| committer | Bjorn Helgaas | 2017-04-18 20:40:31 +0200 |
| commit | 704e8953d3e9db29d5d93c0bf6973d86fe15e679 (patch) | |
| tree | f34833d4b925ce03294c4cae398877f1f1d95f07 /include/linux/pci.h | |
| parent | genirq: Return the IRQ name from free_irq() (diff) | |
| download | kernel-qcow2-linux-704e8953d3e9db29d5d93c0bf6973d86fe15e679.tar.gz kernel-qcow2-linux-704e8953d3e9db29d5d93c0bf6973d86fe15e679.tar.xz kernel-qcow2-linux-704e8953d3e9db29d5d93c0bf6973d86fe15e679.zip | |
PCI/irq: Add pci_request_irq() and pci_free_irq() helpers
These are small wrappers around request_threaded_irq() and free_irq(),
which dynamically allocate space for the device name so that drivers don't
need to keep static buffers for these around. Additionally it works with
device-relative vector numbers to make the usage easier, and force the
IRQF_SHARED flag on given that it has no runtime overhead and should be
supported by all PCI devices.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index eb3da1a04e6c..b23f81b583ab 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -28,6 +28,7 @@ #include <linux/kobject.h> #include <linux/atomic.h> #include <linux/device.h> +#include <linux/interrupt.h> #include <linux/io.h> #include <linux/resource_ext.h> #include <uapi/linux/pci.h> @@ -1072,6 +1073,11 @@ int pci_select_bars(struct pci_dev *dev, unsigned long flags); bool pci_device_is_present(struct pci_dev *pdev); void pci_ignore_hotplug(struct pci_dev *dev); +int __printf(6, 7) pci_request_irq(struct pci_dev *dev, unsigned int nr, + irq_handler_t handler, irq_handler_t thread_fn, void *dev_id, + const char *fmt, ...); +void pci_free_irq(struct pci_dev *dev, unsigned int nr, void *dev_id); + /* ROM control related routines */ int pci_enable_rom(struct pci_dev *pdev); void pci_disable_rom(struct pci_dev *pdev); |