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PCI/MSI: Remove arch_msi_check_device() 

No architectures implement arch_msi_check_device() or the struct msi_chip
.check_device() method, so remove them.

Remove the "type" parameter to pci_msi_check_device() because it was only
used to call arch_msi_check_device() and is no longer needed.

[bhelgaas: changelog, split to separate patch]
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Alexander Gordeev 2014-09-23 12:39:54 -06:00 committed by Bjorn Helgaas
parent 3930115e0d
commit ad975ebad4
2 changed files with 3 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/pci/msi.c
View File

@ -56,16 +56,6 @@ void __weak arch_teardown_msi_irq(unsigned int irq)
chip->teardown_irq(chip, irq);
}
int __weak arch_msi_check_device(struct pci_dev *dev, int nvec, int type)
{
struct msi_chip *chip = dev->bus->msi;
if (!chip || !chip->check_device)
return 0;
return chip->check_device(chip, dev, nvec, type);
}
int __weak arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
{
struct msi_desc *entry;
@ -815,10 +805,9 @@ out_free:
* to determine if MSI/-X are supported for the device. If MSI/-X is
* supported return 0, else return an error code.
**/
static int pci_msi_check_device(struct pci_dev *dev, int nvec, int type)
static int pci_msi_check_device(struct pci_dev *dev, int nvec)
{
struct pci_bus *bus;
int ret;
/* MSI must be globally enabled and supported by the device */
if (!pci_msi_enable || !dev || dev->no_msi)
@ -843,10 +832,6 @@ static int pci_msi_check_device(struct pci_dev *dev, int nvec, int type)
if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI)
return -EINVAL;
ret = arch_msi_check_device(dev, nvec, type);
if (ret)
return ret;
return 0;
}
@ -952,7 +937,7 @@ int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec)
if (!entries || !dev->msix_cap || dev->current_state != PCI_D0)
return -EINVAL;
status = pci_msi_check_device(dev, nvec, PCI_CAP_ID_MSIX);
status = pci_msi_check_device(dev, nvec);
if (status)
return status;
@ -1086,7 +1071,7 @@ int pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec)
nvec = maxvec;
do {
rc = pci_msi_check_device(dev, nvec, PCI_CAP_ID_MSI);
rc = pci_msi_check_device(dev, nvec);
if (rc < 0) {
return rc;
} else if (rc > 0) {

3
include/linux/msi.h
View File

@ -60,7 +60,6 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc);
void arch_teardown_msi_irq(unsigned int irq);
int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
void arch_teardown_msi_irqs(struct pci_dev *dev);
int arch_msi_check_device(struct pci_dev* dev, int nvec, int type);
void arch_restore_msi_irqs(struct pci_dev *dev);
void default_teardown_msi_irqs(struct pci_dev *dev);
@ -77,8 +76,6 @@ struct msi_chip {
int (*setup_irq)(struct msi_chip *chip, struct pci_dev *dev,
struct msi_desc *desc);
void (*teardown_irq)(struct msi_chip *chip, unsigned int irq);
int (*check_device)(struct msi_chip *chip, struct pci_dev *dev,
int nvec, int type);
};
#endif /* LINUX_MSI_H */