summaryrefslogtreecommitdiffstats
path: root/drivers/iommu/fsl_pamu_domain.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/iommu/fsl_pamu_domain.c')
-rw-r--r--drivers/iommu/fsl_pamu_domain.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index 93072ba44b1d..3dd0b8edd429 100644
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -301,7 +301,7 @@ static int check_size(u64 size, dma_addr_t iova)
* Size must be a power of two and at least be equal
* to PAMU page size.
*/
- if (!is_power_of_2(size) || size < PAMU_PAGE_SIZE) {
+ if ((size & (size - 1)) || size < PAMU_PAGE_SIZE) {
pr_debug("%s: size too small or not a power of two\n", __func__);
return -EINVAL;
}
OpenPOWER on IntegriCloud