PCI/irq: Add pci_request_irq() and pci_free_irq() helpers

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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>

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Christoph Hellwig 2017-04-13 09:06:42 +02:00 • committed by Bjorn Helgaas

parent 25ce4be724

commit 704e8953d3

2 changed files with 66 additions and 1 deletions

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include/linux/pci.h

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