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iova: Delete copy_reserved_iova()

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Since commit c588072bba ("iommu/vt-d: Convert intel iommu driver to the
iommu ops"), function copy_reserved_iova() is not referenced, so delete
it.

Signed-off-by: John Garry <john.garry@huawei.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/1609940111-28563-3-git-send-email-john.garry@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
John Garry 2021-01-06 21:35:07 +08:00 committed by Joerg Roedel
parent 9cc0aaeb96
commit 6221061901
2 changed files with 0 additions and 36 deletions
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30
drivers/iommu/iova.c
View file

@ -710,36 +710,6 @@ reserve_iova(struct iova_domain *iovad,
}
EXPORT_SYMBOL_GPL(reserve_iova);
/**
* copy_reserved_iova - copies the reserved between domains
* @from: - source domain from where to copy
* @to: - destination domin where to copy
* This function copies reserved iova's from one domain to
* other.
*/
void
copy_reserved_iova(struct iova_domain *from, struct iova_domain *to)
{
unsigned long flags;
struct rb_node *node;
spin_lock_irqsave(&from->iova_rbtree_lock, flags);
for (node = rb_first(&from->rbroot); node; node = rb_next(node)) {
struct iova *iova = rb_entry(node, struct iova, node);
struct iova *new_iova;
if (iova->pfn_lo == IOVA_ANCHOR)
continue;
new_iova = reserve_iova(to, iova->pfn_lo, iova->pfn_hi);
if (!new_iova)
pr_err("Reserve iova range %lx@%lx failed\n",
iova->pfn_lo, iova->pfn_lo);
}
spin_unlock_irqrestore(&from->iova_rbtree_lock, flags);
}
EXPORT_SYMBOL_GPL(copy_reserved_iova);
/*
* Magazine caches for IOVA ranges. For an introduction to magazines,
* see the USENIX 2001 paper "Magazines and Vmem: Extending the Slab

6
include/linux/iova.h
View file

@ -150,7 +150,6 @@ unsigned long alloc_iova_fast(struct iova_domain *iovad, unsigned long size,
unsigned long limit_pfn, bool flush_rcache);
struct iova *reserve_iova(struct iova_domain *iovad, unsigned long pfn_lo,
unsigned long pfn_hi);
void copy_reserved_iova(struct iova_domain *from, struct iova_domain *to);
void init_iova_domain(struct iova_domain *iovad, unsigned long granule,
unsigned long start_pfn);
int init_iova_flush_queue(struct iova_domain *iovad,
@ -211,11 +210,6 @@ static inline struct iova *reserve_iova(struct iova_domain *iovad,
return NULL;
}
static inline void copy_reserved_iova(struct iova_domain *from,
struct iova_domain *to)
{
}
static inline void init_iova_domain(struct iova_domain *iovad,
unsigned long granule,
unsigned long start_pfn)