Re: linux-next: Tree for Sept 24 (iommu)

From: Alex Williamson
Date: Mon Sep 24 2012 - 23:23:25 EST


On Mon, 2012-09-24 at 15:02 -0700, Randy Dunlap wrote:
> On 09/24/2012 07:53 AM, Stephen Rothwell wrote:
>
> > Hi all,
> >
> > Today was a train wreck, with lots of new conflicts across several trees
> > and a few build failures as well.
> >
> > Changes since 201209021:
> >
>
>
>
> on i386:
>
> drivers/built-in.o: In function `iommu_group_remove_device':
> (.text+0x74cb10): multiple definition of `iommu_group_remove_device'
> arch/x86/built-in.o:(.text+0x140d0): first defined here
...


Here's a patch to get it past this. It still doesn't fully build, but
the rest isn't iommu related. Thanks,

Alex


commit 6955e1f06cb20ddd25665984c330b945443cce36
Author: Alex Williamson <alex.williamson@xxxxxxxxxx>
Date: Mon Sep 24 21:13:52 2012 -0600

iommu: inline iommu group stub functions

Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx>

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 7e83370..f3b99e1 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -256,72 +256,78 @@ static inline void iommu_set_fault_handler(struct iommu_domain *domain,
{
}

-int iommu_attach_group(struct iommu_domain *domain, struct iommu_group *group)
+static inline int iommu_attach_group(struct iommu_domain *domain,
+ struct iommu_group *group)
{
return -ENODEV;
}

-void iommu_detach_group(struct iommu_domain *domain, struct iommu_group *group)
+static inline void iommu_detach_group(struct iommu_domain *domain,
+ struct iommu_group *group)
{
}

-struct iommu_group *iommu_group_alloc(void)
+static inline struct iommu_group *iommu_group_alloc(void)
{
return ERR_PTR(-ENODEV);
}

-void *iommu_group_get_iommudata(struct iommu_group *group)
+static inline void *iommu_group_get_iommudata(struct iommu_group *group)
{
return NULL;
}

-void iommu_group_set_iommudata(struct iommu_group *group, void *iommu_data,
- void (*release)(void *iommu_data))
+static inline void iommu_group_set_iommudata(struct iommu_group *group,
+ void *iommu_data,
+ void (*release)(void *iommu_data))
{
}

-int iommu_group_set_name(struct iommu_group *group, const char *name)
+static inline int iommu_group_set_name(struct iommu_group *group,
+ const char *name)
{
return -ENODEV;
}

-int iommu_group_add_device(struct iommu_group *group, struct device *dev)
+static inline int iommu_group_add_device(struct iommu_group *group,
+ struct device *dev)
{
return -ENODEV;
}

-void iommu_group_remove_device(struct device *dev)
+static inline void iommu_group_remove_device(struct device *dev)
{
}

-int iommu_group_for_each_dev(struct iommu_group *group, void *data,
- int (*fn)(struct device *, void *))
+static inline int iommu_group_for_each_dev(struct iommu_group *group,
+ void *data,
+ int (*fn)(struct device *, void *))
{
return -ENODEV;
}

-struct iommu_group *iommu_group_get(struct device *dev)
+static inline struct iommu_group *iommu_group_get(struct device *dev)
{
return NULL;
}

-void iommu_group_put(struct iommu_group *group)
+static inline void iommu_group_put(struct iommu_group *group)
{
}

-int iommu_group_register_notifier(struct iommu_group *group,
- struct notifier_block *nb)
+static inline int iommu_group_register_notifier(struct iommu_group *group,
+ struct notifier_block *nb)
{
return -ENODEV;
}

-int iommu_group_unregister_notifier(struct iommu_group *group,
- struct notifier_block *nb)
+static inline int iommu_group_unregister_notifier(struct iommu_group *group,
+ struct notifier_block *nb)
{
return 0;
}

-int iommu_group_id(struct iommu_group *group)
+static inline int iommu_group_id(struct iommu_group *group)
{
return -ENODEV;
}


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