Commit 62210619 authored by John Garry's avatar John Garry Committed by Joerg Roedel
Browse files

iova: Delete copy_reserved_iova() 



Since commit c588072b ("iommu/vt-d: Convert intel iommu driver to the
iommu ops"), function copy_reserved_iova() is not referenced, so delete
it.

Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
Acked-by: default avatarWill Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/1609940111-28563-3-git-send-email-john.garry@huawei.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 9cc0aaeb

drivers/iommu/iova.c

+0 −30
Original line number Diff line number Diff line
@@ -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

include/linux/iova.h

+0 −6
Original line number Diff line number Diff line
@@ -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)