From: John Garry <john.garry@huawei.com> mainline inclusion from mainline-master commit 9806731db684a475ade1e95d166089b9edbd9da3 category: bugfix bugzilla: 175270 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... ------------------------------------------------------------------------ Add a common function to set the fields for a irq resource to disabled, which mimics what is done in acpi_dev_irqresource_disabled(), with a view to replace that function. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/1606905417-183214-3-git-send-email-john.garry@huaw... Reviewed-by: Ouyangdelong <ouyangdelong@huawei.com> Signed-off-by: Nifujia <nifujia1@hisilicon.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- include/linux/ioport.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/ioport.h b/include/linux/ioport.h index 84a716fd6029..eee569900c7d 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -308,6 +308,13 @@ struct resource *devm_request_free_mem_region(struct device *dev, struct resource *request_free_mem_region(struct resource *base, unsigned long size, const char *name); +static inline void irqresource_disabled(struct resource *res, u32 irq) +{ + res->start = irq; + res->end = irq; + res->flags = IORESOURCE_IRQ | IORESOURCE_DISABLED | IORESOURCE_UNSET; +} + #ifdef CONFIG_IO_STRICT_DEVMEM void revoke_devmem(struct resource *res); #else -- 2.20.1