@@ -64,39 +64,18 @@ static void pci_msi_teardown_msi_irqs(struct pci_dev *dev)
/* Arch hooks */
int __weak arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
{
- struct msi_controller *chip = dev->bus->msi;
- int err;
-
- if (!chip || !chip->setup_irq)
- return -EINVAL;
-
- err = chip->setup_irq(chip, dev, desc);
- if (err < 0)
- return err;
-
- irq_set_chip_data(desc->irq, chip);
-
- return 0;
+ return -EINVAL;
}
void __weak arch_teardown_msi_irq(unsigned int irq)
{
- struct msi_controller *chip = irq_get_chip_data(irq);
-
- if (!chip || !chip->teardown_irq)
- return;
-
- chip->teardown_irq(chip, irq);
}
int __weak arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
{
- struct msi_controller *chip = dev->bus->msi;
struct msi_desc *entry;
int ret;
- if (chip && chip->setup_irqs)
- return chip->setup_irqs(chip, dev, nvec, type);
/*
* If an architecture wants to support multiple MSI, it needs to
* override arch_setup_msi_irqs()
@@ -895,7 +895,6 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
/* Temporarily move resources off the list */
list_splice_init(&bridge->windows, &resources);
bus->sysdata = bridge->sysdata;
- bus->msi = bridge->msi;
bus->ops = bridge->ops;
bus->number = bus->busn_res.start = bridge->busnr;
#ifdef CONFIG_PCI_DOMAINS_GENERIC
@@ -1053,7 +1052,6 @@ static struct pci_bus *pci_alloc_child_bus(struct pci_bus *parent,
return NULL;
child->parent = parent;
- child->msi = parent->msi;
child->sysdata = parent->sysdata;
child->bus_flags = parent->bus_flags;
@@ -540,7 +540,6 @@ struct pci_host_bridge {
int (*map_irq)(const struct pci_dev *, u8, u8);
void (*release_fn)(struct pci_host_bridge *);
void *release_data;
- struct msi_controller *msi;
unsigned int ignore_reset_delay:1; /* For entire hierarchy */
unsigned int no_ext_tags:1; /* No Extended Tags */
unsigned int native_aer:1; /* OS may use PCIe AER */
@@ -621,7 +620,6 @@ struct pci_bus {
struct resource busn_res; /* Bus numbers routed to this bus */
struct pci_ops *ops; /* Configuration access functions */
- struct msi_controller *msi; /* MSI controller */
void *sysdata; /* Hook for sys-specific extension */
struct proc_dir_entry *procdir; /* Directory entry in /proc/bus/pci */
As there is no driver using msi_controller, we can now safely remove its use from the PCI probe code. Signed-off-by: Marc Zyngier <maz@kernel.org> --- drivers/pci/msi.c | 23 +---------------------- drivers/pci/probe.c | 2 -- include/linux/pci.h | 2 -- 3 files changed, 1 insertion(+), 26 deletions(-)