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PCI: drivers/pci/msi.c: move arch hooks to the top
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This patch fixes the following problem present with older gcc versions:

<--  snip  -->

...
  CC      drivers/pci/msi.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/pci/msi.c:692: warning: weak declaration of `arch_msi_check_device' after first use results in unspecified behavior
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/pci/msi.c:704: warning: weak declaration of `arch_setup_msi_irqs' after first use results in unspecified behavior
/home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/pci/msi.c:724: warning: weak declaration of `arch_teardown_msi_irqs' after first use results in unspecified behavior
...

<--  snip  -->

Signed-off-by: Adrian Bunk <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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AdrianBunk authored and gregkh committed Feb 1, 2008
1 parent 6bae1d9 commit 6a9e7f2
Showing 1 changed file with 45 additions and 46 deletions.
91 changes: 45 additions & 46 deletions drivers/pci/msi.c
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,51 @@

static int pci_msi_enable = 1;

/* Arch hooks */

int __attribute__ ((weak))
arch_msi_check_device(struct pci_dev *dev, int nvec, int type)
{
return 0;
}

int __attribute__ ((weak))
arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *entry)
{
return 0;
}

int __attribute__ ((weak))
arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
{
struct msi_desc *entry;
int ret;

list_for_each_entry(entry, &dev->msi_list, list) {
ret = arch_setup_msi_irq(dev, entry);
if (ret)
return ret;
}

return 0;
}

void __attribute__ ((weak)) arch_teardown_msi_irq(unsigned int irq)
{
return;
}

void __attribute__ ((weak))
arch_teardown_msi_irqs(struct pci_dev *dev)
{
struct msi_desc *entry;

list_for_each_entry(entry, &dev->msi_list, list) {
if (entry->irq != 0)
arch_teardown_msi_irq(entry->irq);
}
}

static void msi_set_enable(struct pci_dev *dev, int enable)
{
int pos;
Expand Down Expand Up @@ -682,49 +727,3 @@ void pci_msi_init_pci_dev(struct pci_dev *dev)
{
INIT_LIST_HEAD(&dev->msi_list);
}


/* Arch hooks */

int __attribute__ ((weak))
arch_msi_check_device(struct pci_dev* dev, int nvec, int type)
{
return 0;
}

int __attribute__ ((weak))
arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *entry)
{
return 0;
}

int __attribute__ ((weak))
arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
{
struct msi_desc *entry;
int ret;

list_for_each_entry(entry, &dev->msi_list, list) {
ret = arch_setup_msi_irq(dev, entry);
if (ret)
return ret;
}

return 0;
}

void __attribute__ ((weak)) arch_teardown_msi_irq(unsigned int irq)
{
return;
}

void __attribute__ ((weak))
arch_teardown_msi_irqs(struct pci_dev *dev)
{
struct msi_desc *entry;

list_for_each_entry(entry, &dev->msi_list, list) {
if (entry->irq != 0)
arch_teardown_msi_irq(entry->irq);
}
}

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