Keep these four variables type consistent with the paramters of function
__alloc_and_insert_iova_range and the members of struct iova:
1. static int __alloc_and_insert_iova_range(struct iova_domain *iovad,
unsigned long size, unsigned long limit_pfn,
2. struct iova {
unsigned long pfn_hi;
unsigned long pfn_lo;
In fact, limit_pfn is most likely larger than 32 bits on DMA64.
Signed-off-by: Zhen Lei <thunder.leiz...@huawei.com>
---
drivers/iommu/iova.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index b7268a1..8ba8b496 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -104,8 +104,8 @@ __cached_rbnode_delete_update(struct iova_domain *iovad,
struct iova *free)
* Computes the padding size required, to make the start address
* naturally aligned on the power-of-two order of its size
*/
-static unsigned int
-iova_get_pad_size(unsigned int size, unsigned int limit_pfn)
+static unsigned long
+iova_get_pad_size(unsigned long size, unsigned long limit_pfn)
{
return (limit_pfn + 1 - size) & (__roundup_pow_of_two(size) - 1);
}
@@ -117,7 +117,7 @@ static int __alloc_and_insert_iova_range(struct iova_domain
*iovad,
struct rb_node *prev, *curr = NULL;
unsigned long flags;
unsigned long saved_pfn;
- unsigned int pad_size = 0;
+ unsigned long pad_size = 0;
/* Walk the tree backwards */
spin_lock_irqsave(&iovad->iova_rbtree_lock, flags);
--
2.5.0
