MSI chip will be saved in pci_sys_data, now we can
clean up pcibios_add_bus() and pcibios_remove_bus()
in arm, and use pci_find_msi_chip() to get msi chip
in core MSI code.
Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
---
arch/arm/include/asm/mach/pci.h | 4 ----
arch/arm/kernel/bios32.c | 16 ----------------
drivers/pci/msi.c | 11 +++--------
3 files changed, 3 insertions(+), 28 deletions(-)
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index 59b0d87..230b2c9 100644
--- a/arch/arm/include/asm/mach/pci.h
+++ b/arch/arm/include/asm/mach/pci.h
@@ -39,8 +39,6 @@ struct hw_pci {
resource_size_t start,
resource_size_t size,
resource_size_t align);
- void (*add_bus)(struct pci_bus *bus);
- void (*remove_bus)(struct pci_bus *bus);
};
/*
@@ -71,8 +69,6 @@ struct pci_sys_data {
resource_size_t start,
resource_size_t size,
resource_size_t align);
- void (*add_bus)(struct pci_bus *bus);
- void (*remove_bus)(struct pci_bus *bus);
void *private_data; /* platform controller private data */
};
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index a19038d..b1b872e 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -360,20 +360,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
}
EXPORT_SYMBOL(pcibios_fixup_bus);
-void pcibios_add_bus(struct pci_bus *bus)
-{
- struct pci_sys_data *sys = bus->sysdata;
- if (sys->add_bus)
- sys->add_bus(bus);
-}
-
-void pcibios_remove_bus(struct pci_bus *bus)
-{
- struct pci_sys_data *sys = bus->sysdata;
- if (sys->remove_bus)
- sys->remove_bus(bus);
-}
-
/*
* Swizzle the device pin each time we cross a bridge. If a platform does
* not provide a swizzle function, we perform the standard PCI swizzling.
@@ -478,8 +464,6 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
sys->swizzle = hw->swizzle;
sys->map_irq = hw->map_irq;
sys->align_resource = hw->align_resource;
- sys->add_bus = hw->add_bus;
- sys->remove_bus = hw->remove_bus;
INIT_LIST_HEAD(&sys->resources);
if (hw->private_data)
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index f11108c..56e54ad 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -32,12 +32,10 @@ int pci_msi_ignore_mask;
int __weak arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
{
- struct msi_chip *chip = dev->bus->msi;
+ struct msi_chip *chip;
int err;
- if (!chip)
- chip = pci_msi_chip(dev->bus);
-
+ chip = pci_msi_chip(dev->bus);
if (!chip || !chip->setup_irq)
return -EINVAL;
@@ -51,10 +49,7 @@ int __weak arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
void __weak arch_teardown_msi_irq(unsigned int irq)
{
struct msi_desc *entry = irq_get_msi_desc(irq);
- struct msi_chip *chip = entry->dev->bus->msi;
-
- if (!chip)
- chip = pci_msi_chip(entry->dev->bus);
+ struct msi_chip *chip = pci_msi_chip(entry->dev->bus);
if (!chip || !chip->teardown_irq)
return;
--
1.7.1
--
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