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ARM: amba: Allow some ARM_AMBA users to compile with COMPILE_TEST

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CONFIG_VFIO_AMBA has a light use of AMBA, adding some inline fallbacks
when AMBA is disabled will allow it to be compiled under COMPILE_TEST and
make VFIO easier to maintain.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Message-Id: <3-v1-df057e0f92c3+91-vfio_arm_compile_test_jgg@nvidia.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Jason Gunthorpe
2021-02-23 15:17:48 -04:00
committed by Alex Williamson
parent d3d72a6dff
commit 3b49dfb08c
2 changed files with 12 additions and 1 deletions
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2
drivers/vfio/platform/Kconfig
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@@ -12,7 +12,7 @@ config VFIO_PLATFORM
config VFIO_AMBA config VFIO_AMBA
tristate "VFIO support for AMBA devices" tristate "VFIO support for AMBA devices"
depends on VFIO_PLATFORM && ARM_AMBA depends on VFIO_PLATFORM && (ARM_AMBA || COMPILE_TEST)
help help
Support for ARM AMBA devices with VFIO. This is required to make Support for ARM AMBA devices with VFIO. This is required to make
use of ARM AMBA devices present on the system using the VFIO use of ARM AMBA devices present on the system using the VFIO

11
include/linux/amba/bus.h
View File

@@ -105,8 +105,19 @@ extern struct bus_type amba_bustype;
#define amba_get_drvdata(d) dev_get_drvdata(&d->dev) #define amba_get_drvdata(d) dev_get_drvdata(&d->dev)
#define amba_set_drvdata(d,p) dev_set_drvdata(&d->dev, p) #define amba_set_drvdata(d,p) dev_set_drvdata(&d->dev, p)
#ifdef CONFIG_ARM_AMBA
int amba_driver_register(struct amba_driver *); int amba_driver_register(struct amba_driver *);
void amba_driver_unregister(struct amba_driver *); void amba_driver_unregister(struct amba_driver *);
#else
static inline int amba_driver_register(struct amba_driver *drv)
{
return -EINVAL;
}
static inline void amba_driver_unregister(struct amba_driver *drv)
{
}
#endif
struct amba_device *amba_device_alloc(const char *, resource_size_t, size_t); struct amba_device *amba_device_alloc(const char *, resource_size_t, size_t);
void amba_device_put(struct amba_device *); void amba_device_put(struct amba_device *);
int amba_device_add(struct amba_device *, struct resource *); int amba_device_add(struct amba_device *, struct resource *);