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| author | Niklas Cassel <niklas.cassel@axis.com> | 2018-01-19 10:39:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-26 11:02:08 +0200 |
| commit | ebf5ffca1bf2be571544befa56e37723e8b8356f (patch) | |
| tree | 757b212557de1d6340481e22314dc3221b522bb1 /include | |
| parent | c212c855a09d826b95eb18d5adf04f4c65ecb8ca (diff) | |
| download | linux-stable-ebf5ffca1bf2be571544befa56e37723e8b8356f.tar.gz linux-stable-ebf5ffca1bf2be571544befa56e37723e8b8356f.tar.bz2 linux-stable-ebf5ffca1bf2be571544befa56e37723e8b8356f.zip | |
PCI: Add dummy pci_irqd_intx_xlate() for CONFIG_PCI=n build
[ Upstream commit 80db6f08b7af93eddc9487535e6150b220262637 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -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 d16a7c037ec0..727e309baa5e 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1688,6 +1688,13 @@ 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 */ |