No functional change.

Signed-off-by: Nicola Vetrini <nicola.vetrini@bugseng.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
---
Changes in v2:
- Changed macro name
---
 xen/drivers/passthrough/iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
index f9a9f53dbd44..894e4fd2f43b 100644
--- a/xen/drivers/passthrough/iommu.c
+++ b/xen/drivers/passthrough/iommu.c
@@ -560,7 +560,7 @@ int __init iommu_setup(void)
         rc = iommu_hardware_setup();
         if ( !rc )
             ops = iommu_get_ops();
-        if ( ops && (ops->page_sizes & -ops->page_sizes) != PAGE_SIZE )
+        if ( ops && (ISOLATE_LOW_BIT(ops->page_sizes)) != PAGE_SIZE )
         {
             printk(XENLOG_ERR "IOMMU: page size mask %lx unsupported\n",
                    ops->page_sizes);
-- 
2.34.1

On 27.10.2023 15:36, Nicola Vetrini wrote:
> No functional change.
> 
> Signed-off-by: Nicola Vetrini <nicola.vetrini@bugseng.com>
> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

Acked-by: Jan Beulich <jbeulich@suse.com>