Hi Marc It looks like this patch fails to apply to 4.3-rc5.... Gab > -----Original Message----- > From: linux-pci-owner@xxxxxxxxxxxxxxx [mailto:linux-pci- > owner@xxxxxxxxxxxxxxx] On Behalf Of Marc Zyngier > Sent: Thursday, October 15, 2015 4:39 PM > To: Thomas Gleixner; Jiang Liu; Jason Cooper > Cc: majun (F); linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux- > pci@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx > Subject: [PATCH RFC 4/7] genirq/msi: Make the .prepare callback > reusable > > The .prepare callbacks are so far only called from > msi_domain_alloc_irqs. > In order to reuse that code, split that code and create a > msi_domain_prepare_irqs function that the existing code can call into. > > Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx> > --- > include/linux/msi.h | 4 ++++ > kernel/irq/msi.c | 20 +++++++++++++++++--- > 2 files changed, 21 insertions(+), 3 deletions(-) > > diff --git a/include/linux/msi.h b/include/linux/msi.h > index 32a24b9..5bb36a9 100644 > --- a/include/linux/msi.h > +++ b/include/linux/msi.h > @@ -277,6 +277,10 @@ struct irq_domain > *platform_msi_create_irq_domain(struct fwnode_handle *fwnode, > int platform_msi_domain_alloc_irqs(struct device *dev, unsigned int > nvec, > irq_write_msi_msg_t write_msi_msg); > void platform_msi_domain_free_irqs(struct device *dev); > + > +/* When an MSI domain is used as an intermediate domain */ > +int msi_domain_prepare_irqs(struct irq_domain *domain, struct device > *dev, > + int nvec, msi_alloc_info_t *args); > #endif /* CONFIG_GENERIC_MSI_IRQ_DOMAIN */ > > #ifdef CONFIG_PCI_MSI_IRQ_DOMAIN > diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c > index 95354bb..8e6e112 100644 > --- a/kernel/irq/msi.c > +++ b/kernel/irq/msi.c > @@ -256,6 +256,22 @@ struct irq_domain *msi_create_irq_domain(struct > fwnode_handle *fwnode, > &msi_domain_ops, info); > } > > +int msi_domain_prepare_irqs(struct irq_domain *domain, struct device > *dev, > + int nvec, msi_alloc_info_t *arg) > +{ > + struct msi_domain_info *info = domain->host_data; > + struct msi_domain_ops *ops = info->ops; > + int ret; > + > + ret = ops->msi_check(domain, info, dev); > + if (ret == 0) > + ret = ops->msi_prepare(domain, dev, nvec, arg); > + if (ret) > + return ret; > + > + return 0; > +} > + > /** > * msi_domain_alloc_irqs - Allocate interrupts from a MSI interrupt > domain > * @domain: The domain to allocate from > @@ -274,9 +290,7 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, > struct device *dev, > struct msi_desc *desc; > int i, ret, virq = -1; > > - ret = ops->msi_check(domain, info, dev); > - if (ret == 0) > - ret = ops->msi_prepare(domain, dev, nvec, &arg); > + ret = msi_domain_prepare_irqs(domain, dev, nvec, &arg); > if (ret) > return ret; > > -- > 2.1.4 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html ?韬{.n?????%??檩??w?{.n???{炳???骅w* jg????????G??⒏ ⒎?:+v???????? ????＂??????
