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| author |   Niklas Cassel <niklas.cassel@axis.com> | 2018-01-19 10:39:06 +0100 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2018-01-19 11:37:45 -0600 |
| commit | 80db6f08b7af93eddc9487535e6150b220262637 (patch) | |
| tree | 99ff59277178b327210d58b691e6a1103864749e /include/linux/pci.h | |
| parent | PCI: Add wrappers for dev_printk() (diff) | |
| download | linux-dev-80db6f08b7af93eddc9487535e6150b220262637.tar.xz linux-dev-80db6f08b7af93eddc9487535e6150b220262637.zip | |
PCI: Add dummy pci_irqd_intx_xlate() for CONFIG_PCI=n build
Some hardware can operate in either "host" or "endpoint" mode, which means
there can be both a host bridge driver and an endpoint driver for the same
device. Those drivers share a lot of code, so sometimes they live in the
same source file.
The host bridge driver requires CONFIG_PCI=y because it enumerates PCI
devices below the bridge using the PCI core. The endpoint driver does not
require CONFIG_PCI=y because it runs in an embedded kernel on the other
side of the device, e.g., on an adapter card.
pci-dra7xx.c contains both host and endpoint drivers. If we select only
the endpoint driver (CONFIG_PCI=n and CONFIG_PCI_DRA7XX_EP=y), the unneeded
host driver is still compiled. It references pci_irqd_intx_xlate(), which
is not present when CONFIG_PCI=n, which causes this error:
drivers/pci/dwc/pci-dra7xx.c:229:11: error: 'pci_irqd_intx_xlate' undeclared here (not in a function)
Add a dummy pci_irqd_intx_xlate() for the CONFIG_PCI=n case.
[bhelgaas: changelog]
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 6079ab46191f..febe7f653689 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1686,6 +1686,13 @@ static inline int pci_get_new_domain_nr(void) { return -ENOSYS; } #define dev_is_pf(d) (false) static inline bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags) { return false; } +static inline int pci_irqd_intx_xlate(struct irq_domain *d, + struct device_node *node, + const u32 *intspec, + unsigned int intsize, + unsigned long *out_hwirq, + unsigned int *out_type) +{ return -EINVAL; } #endif /* CONFIG_PCI */ /* Include architecture-dependent settings and functions */ |