diff mbox series

[XEN,v3,2/2] xen/iommu: use ISOLATE_LSB to wrap a violation of Rule 10.1

Message ID 864df3cff95b6dde17ebd7af6d814f79a0ab2044.1700724699.git.nicola.vetrini@bugseng.com (mailing list archive)
State New, archived
Headers show
Series use the macro ISOLATE_LSB where appropriate | expand

Commit Message

Nicola Vetrini Nov. 23, 2023, 7:37 a.m. UTC 
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>
---
Changes in v2:
- Changed macro name
Changes in v3:
- Changed macro name
---
 xen/drivers/passthrough/iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
index f9a9f53dbd44..996c31be1284 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_LSB(ops->page_sizes)) != PAGE_SIZE )
         {
             printk(XENLOG_ERR "IOMMU: page size mask %lx unsupported\n",
                    ops->page_sizes);