[PATCH] iommu: Use dev_dbg for group handling code

[Lin Ruifeng]

When devices are frequently registered/unregistered, there will be a large
number of iommu group adding/remove messages, which will flood the dmesg buffer
and flush out other logs. For iommu group handling messages, we can use dev_dbg
to output logs only when needed.

Signed-off-by: Lin Ruifeng <linruifeng4@xxxxxxxxxx>
---
 drivers/iommu/iommu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 50718ab810a4..18ceaba6cf0a 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1283,7 +1283,7 @@ static struct group_device *iommu_group_alloc_device(struct iommu_group *group,
 
 	trace_add_device_to_group(group->id, dev);
 
-	dev_info(dev, "Adding to iommu group %d\n", group->id);
+	dev_dbg(dev, "Adding to iommu group %d\n", group->id);
 
 	return device;
 
@@ -1337,7 +1337,7 @@ void iommu_group_remove_device(struct device *dev)
 	if (!group)
 		return;
 
-	dev_info(dev, "Removing from iommu group %d\n", group->id);
+	dev_dbg(dev, "Removing from iommu group %d\n", group->id);
 
 	__iommu_group_remove_device(dev);
 }
-- 
2.43.0