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| author | Thomas Gleixner <tglx@linutronix.de> | 2010-10-06 22:05:35 +0200 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2010-10-18 16:49:33 +0200 |
| commit | 1525bf0d8f059a38c6e79353583854e1981b2e67 (patch) | |
| tree | e9ffaebc5f2726dd57c0d427996af033af71ab6c | |
| parent | x86/PCI: Export pci_walk_bus function. (diff) | |
| download | linux-1525bf0d8f059a38c6e79353583854e1981b2e67.tar.xz linux-1525bf0d8f059a38c6e79353583854e1981b2e67.zip | |
msi: Introduce default_[teardown|setup]_msi_irqs with fallback.
Introduce an override for the arch_[teardown|setup]_msi_irqs
that can be utilized to fallback to the default arch_* code.
If a platform wants to utilize the code paths defined
in driver/pci/msi.c it has to define HAVE_DEFAULT_MSI_TEARDOWN_IRQS
or HAVE_DEFAULT_MSI_SETUP_IRQS. Otherwise the old mechanism
of over-ridding the arch_* works fine.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: x86@kernel.org
| -rw-r--r-- | drivers/pci/msi.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 5fcf5aec680f..7c24dcef2989 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -35,7 +35,12 @@ int arch_msi_check_device(struct pci_dev *dev, int nvec, int type) #endif #ifndef arch_setup_msi_irqs -int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) +# define arch_setup_msi_irqs default_setup_msi_irqs +# define HAVE_DEFAULT_MSI_SETUP_IRQS +#endif + +#ifdef HAVE_DEFAULT_MSI_SETUP_IRQS +int default_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) { struct msi_desc *entry; int ret; @@ -60,7 +65,12 @@ int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) #endif #ifndef arch_teardown_msi_irqs -void arch_teardown_msi_irqs(struct pci_dev *dev) +# define arch_teardown_msi_irqs default_teardown_msi_irqs +# define HAVE_DEFAULT_MSI_TEARDOWN_IRQS +#endif + +#ifdef HAVE_DEFAULT_MSI_TEARDOWN_IRQS +void default_teardown_msi_irqs(struct pci_dev *dev) { struct msi_desc *entry; |